Tax Professionals Calendar

  
Description
  
  
  
  
  
  
Sales and use tax return due - monthly
2/28/2018 12:00 AM2/28/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-02-28-Sales-and-Use-return-due-monthly.ics1332
WT-6 deposit report due - semi-monthly and monthly
2/28/2018 12:00 AM2/28/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-02-28-WT-6-deposit-report-due-semi-monthly-and-monthly.ics1333
Local expo tax return due - monthly
2/28/2018 12:00 AM2/28/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-02-28-Local-expo-tax-return-due-monthly.ics1334
Premier resort tax return due - monthly
2/28/2018 12:00 AM2/28/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-02-28-Premier-resort-tax-return-due-monthly.ics1335
PW-2 due (Partnerships, estates and trusts)
2/28/2018 12:00 AM2/28/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-02-28-PW-2%20due-Parterships-Estates-and-trusts.ics1336
Police and fire protection fee due - monthly
2/28/2018 12:00 AM2/28/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-02-28-Police-and-fire-protection-fee-due-monthly.ics1337
Alternate fuel, terminal operator return due - monthly
2/28/2018 12:00 AM2/28/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-02-28-Alternate-fuel-terminal-operator-return-due-monthly.ics1338
Supplier, shipper, transporter fuel tax return due - monthly
2/28/2018 12:00 AM2/28/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-02-28-Supplier-shipper-transporter-fuel-tax-return-due-monthly.ics1339
My Tax Account,  Wisconsin Telefile and Wis e-File system file outage
3/4/2018 5:00 AM3/4/2018 12:00 PMhttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-03-04-MTA-Telefile-WI-efile-Outages.ics1301
Sales and Use Tax Issues for Contractors - Fox Valley Area3/7/2018 8:30 AM3/7/2018 11:30 AMSchenck SC, 200 E Washington St, Appleton, WIhttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-03-07_Sales_and_Use_Tax_Issues_For_Contractors%20-%20Fox_Valley_Area.ics1293
WI Sales and Use Tax For Contractors - Madison3/13/2018 12:00 AM3/13/2018 11:59 PMTemperature Systems Inc, 5001 Voges Rd, Madison, WIYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-03-13_WI_Sales_and_Use_Tax_for_Contractors_-_Madison.ics1295
WI Sales and Use Tax for Contractors - Milwaukee3/14/2018 8:30 AM3/14/2018 12:00 PMBest Western Premier Hotel, 1005 S Moorland Rd, Brookfield, WIhttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-03-14_WI_Sales_and_Use_Tax_For_Contractors_-_Milwaukee.ics1296
WT-6 deposit report due - semi-monthly
3/15/2018 12:00 AM3/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-03-15-WT-6-deposit-report-due-semi-monthly.ics1340
PW-1 due (S Corps)
3/15/2018 12:00 AM3/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-03-15-PW-1-due-S-corps.ics1341
PW-1 due (Partnerships )
3/15/2018 12:00 AM3/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-03-15-PW-1-due-partnerships.ics1342
Partnership tax return due
3/15/2018 12:00 AM3/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-03-15-Partnerships-tax-return-due.ics1343
S Corporation tax return due
3/15/2018 12:00 AM3/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-03-15-S-Corporation-tax-return-due.ics1344
PW-es 1st pass-through withholding estimated payment due
3/15/2018 12:00 AM3/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-03-15-PW-es-1st-pass-through-withholding-estimated-payment-due.ics1345
Cigarette/tobacco products return due - monthly
3/15/2018 12:00 AM3/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-03-15-Cigarette-tobacco-products-return-due-monthly.ics1346
Liquor/beer return due - monthly
3/15/2018 12:00 AM3/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-03-15-Liquor-beer-return-due-monthly.ics1347
Supplier, shipper, transporter fuel tax payment due - monthly
3/15/2018 12:00 AM3/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-03-15-Supplier-shipper-transporter-fuel-tax-payment-due-monthly.ics1348
Blenders fuel tax return due - intermittent monthly
3/15/2018 12:00 AM3/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-03-15-Blenders-fuel-tax-return-due-intermittent-monthly.ics1349
WI Sales and Use Tax for Contractors - Fox Valley3/15/2018 8:30 AM3/15/2018 12:00 PMLiberty Hall, 800 Eisenhower Dr, Kimberly, WIhttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-03-15_WI_Sales_and_Use_Tax_for_Contractors_-_Fox_Valley.ics1297
Sales and use tax return due - early monthly
3/20/2018 12:00 AM3/20/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-03-20-Sales-and-Use-tax-return-due-early-monthly.ics1351
Aviation fuel tax return due - monthly
3/20/2018 12:00 AM3/20/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-03-20-Aviation-fuel-tax-return-due-monthly.ics1352
Sales and Use Tax Issues for Contractors - Madison3/21/2018 8:30 AM3/21/2018 11:30 AMAGC of Wisconsin Inc, 4814 E Broadway, Madison, WIhttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-03-21_Sales_and_Use_Tax_Issues_for_Contractors_-_Madison.ics1294
WI Sales and Use Tax for Contractors - Eau Claire3/22/2018 8:30 AM3/22/2018 12:00 PMMetropolis Resort, 5150 Fairview Dr, Eau Claire, WIhttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-03-22_WI_Sales_and_Use_Tax_for_Contractors_-_Eau_Claire.ics1298
Alternate fuel, terminal operator return due - monthly
3/31/2018 12:00 AM3/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-03-31-Alternate-fuel-terminal-operator-return-due-monthly.ics1353
Supplier, shipper,transporter fuel tax return due - monthly
3/31/2018 12:00 AM3/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-03-31-Supplier-shipper-transporter-fuel-tax-return-due-monthly.ics1354
Sales and use tax return due - monthly
4/2/2018 12:00 AM4/2/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-02-Sales-and-Use-tax-return-due-monthly.ics1355
WT-6 deposit report due - semi-monthly and monthly
4/2/2018 12:00 AM4/2/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-02-WT-6-deposit-report-due-semi-monthly-and-monthly.ics1356
Local expo tax return due - monthly
4/2/2018 12:00 AM4/2/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-02-Local-expo-tax-return-due-monthly.ics1357
Premier resort tax return due - monthly
4/2/2018 12:00 AM4/2/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-02-Premier-resort-tax-return-due-monthly.ics1358
Police and fire protection fee due - monthly
4/2/2018 12:00 AM4/2/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-02-Police-and-fire-protection-fee-due-monthly.ics1359
Fiduciary income tax returns due
4/17/2018 12:00 AM4/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-17-Fiduciary-income-tax-returns-due.ics1360
1CNP composite return for nonresident partners due
4/17/2018 12:00 AM4/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-17-1CNP-composite-return-for-nonresident-partners-due.ics1361
1CNS composite return for nonresident shareholder due
4/17/2018 12:00 AM4/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-17-1CNS-composite-return-for-nonresident-shareholder-due.ics1362
WT-6 deposit report due - semi-monthly
4/17/2018 12:00 AM4/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-17-WT-6-deposit-report-due-semi-monthly.ics1363
Cigarette/tobacco products return due - monthly, quarterly
4/17/2018 12:00 AM4/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-17-Cigarette-tobacco-products-return-due-monthly-quarterly.ics1364
Liquor/beer return due - monthly
4/17/2018 12:00 AM4/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-17-Liquor-beer-return-due-monthly.ics1365
Supplier, shipper, transporter fuel tax payment due - monthly
4/17/2018 12:00 AM4/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-17-Supplier-shipper-transporter-fuel-tax-payment-due-monthly.ics1366
Blenders fuel tax return due - intermittent monthly
4/17/2018 12:00 AM4/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-17-Blenders-fuel-tax-return-due-intermittent-monthly.ics1368
Wine direct shippers return due - quarterly
4/17/2018 12:00 AM4/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-17-Wine-direct-shippers-return-due-quarterly.ics1369
PW-1 due (Estates and trusts)
4/17/2018 12:00 AM4/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-17-PW-1-due-Estates-and-trusts.ics1370
Exempt employee's trust, IRA, MSA Fiduciary income tax return due
4/17/2018 12:00 AM4/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-17-Exempt-employees-trust-IRA-MSA-fiduciary-income-tax-return-due.ics1371
Individual income tax returns due
4/17/2018 12:00 AM4/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-17-Individual-income-tax-returns-due.ics1372
1st quarter individual income tax estimated payment due
4/17/2018 12:00 AM4/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-17-1st-quarter-individual-income-tax-estimated-payment-due.ics1373
Corporation franchise or Individual income tax return due (Non-combined and combined)
4/17/2018 12:00 AM4/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-17-Corporation-franchise-Individual-income-tax-returns-due-non-combined-and-combined.ics1374
Corp-ES Corporation 1st quarter estimated tax payment due
4/17/2018 12:00 AM4/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-17-Corp-ES-Corporation-1st-quarter-estimated-tax-payment-due.ics1375
Sales and use tax return due - early monthly
4/20/2018 12:00 AM4/20/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-20-Sales-and-Use-tax-return-due-early-monthly.ics1376
Aviation fuel tax return due - monthly, quarterly
4/20/2018 12:00 AM4/20/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-20-Aviation-fuel-tax-return-due-monthly-quarterly.ics1377
1st quarter dry cleaning fee returns due
4/25/2018 12:00 AM4/25/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-25-1st-quarter-dry-cleaning-fee-returns-due.ics1378
My Tax Account,  Wisconsin Telefile and Wis e-File system file outage 5 am - Noon
4/29/2018 5:00 AM4/29/2018 12:00 PMhttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-29_MTA_Telefile_WI-efile_Outages.ics1302
Sales and use tax return due - monthly and quarterly
4/30/2018 12:00 AM4/30/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-30-Sales-and-Use-tax-return-due-monthly-and-quarterly.ics1379
WT-6 deposit report due - semi-monthly, monthly and quarterly
4/30/2018 12:00 AM4/30/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-30-WT-6-deposit-report-due-semi-monthly-and-quarterly.ics1380
Local expo tax return due - monthly and quarterly
4/30/2018 12:00 AM4/30/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-30-Local-expo-tax-return-due-monthly-and-quarterly.ics1381
Premier resort tax return due - monthly and quarterly
4/30/2018 12:00 AM4/30/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-30-Premier-resort-tax-return-due-monthly-and-quarterly.ics1382
Police and fire protection fee due - monthly
4/30/2018 12:00 AM4/30/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-30-Police-and-fire-protection-fee-due-monthly.ics1383
Rental vehicle tax return due - quarterly
4/30/2018 12:00 AM4/30/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-30-Rental-vehicle-tax-return-due-quarterly.ics1384
Alternate fuel, terminal operator return due - monthly, quarterly
4/30/2018 12:00 AM4/30/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-30-Alternate-fuel-terminal-operator-return-due-monthly-quarterly.ics1385
Supplier, shipper, transporter fuel tax return due - monthly
4/30/2018 12:00 AM4/30/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-04-30-Supplier-shipper-transporter-fuel-tax-return-due-monthly.ics1386
Exempt corporation franchise or income tax return due
5/15/2018 12:00 AM5/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-05-15-Exempt-corporation-franchise-or-income-tax-return-due.ics1387
Exempt non-employee's trust, IRA, MSA Fiduciary income tax return due
5/15/2018 12:00 AM5/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-05-15-Exempt-non-employees-trust-IRA-MSA-fiduciary-income-tax-return-due.ics1388
WT-6 deposit report due - semi-monthly
5/15/2018 12:00 AM5/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-05-15-WT-6-deposit-report-due-semi-monthly.ics1389
Supplier, shipper, transporter fuel tax payment due - monthly
5/15/2018 12:00 AM5/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-05-15-Supplier-shipper-transporter-fuel-tax-payment-due-monthly.ics1392
Blenders fuel tax return due - intermittent monthly
5/15/2018 12:00 AM5/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-05-15-Blenders-fuel-tax-return-due-intermittent-monthly.ics1393
Cigarette/tobacco products return due - monthly
5/15/2018 12:00 AM5/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-05-15-Cigarette-tobacco-products-return-due-monthly.ics1405
Liquor/beer return due - monthly
5/15/2018 12:00 AM5/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-05-15-Liquor-beer-return-due-monthly.ics1406
Sales and use tax return due - early monthly
5/21/2018 12:00 AM5/21/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-05-21-Sales-and-Use-tax-return-due-early-monthly.ics1394
Aviation fuel tax return due - monthly
5/21/2018 12:00 AM5/21/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-05-21-Aviation-fuel-tax-return-due-monthly.ics1395
State of Wisconsin holiday - Revenue offices closed
5/28/2018 12:00 AM5/28/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-05-28-State-of-Wisconsin-holiday-Revenue-offices-closed.ics1396
Sales and use tax return due - monthly
5/31/2018 12:00 AM5/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-05-31-Sales-and-Use-tax-return-due-monthly.ics1397
WT-6 deposit report due - semi-monthly and monthly
5/31/2018 12:00 AM5/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-05-31-WT-6-deposit-report-due-semi-monthly-and-monthly.ics1398
Local expo tax return due - monthly
5/31/2018 12:00 AM5/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-05-31-Local-expo-tax-return-due-monthly.ics1399
Premier resort tax return due - monthly
5/31/2018 12:00 AM5/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-05-31-Premier-resort-tax-return-due-monthly.ics1400
Police and fire protection fee due - monthly
5/31/2018 12:00 AM5/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-05-31-Police-and-fire-protection-fee-due-monthly.ics1401
Alternate fuel, terminal operator return due - monthly
5/31/2018 12:00 AM5/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-05-31-Alternate-fuel-terminal-operator-return-due-monthly.ics1402
Supplier, shipper, transporter fuel tax return due - monthly
5/31/2018 12:00 AM5/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-05-31-Supplier-shipper-transporter-fuel-tax-return-due-monthly.ics1403
Ambulatory surgical center assessment due
5/31/2018 12:00 AM5/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-05-31-Ambulatory-surgical-center-assessment-due.ics1404
My Tax Account,  Wisconsin Telefile and Wis e-File system file outage
6/9/2018 12:00 AM6/9/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-06-09-MTA-Telefile-WI-efile-Outages.ics1303
My Tax Account,  Wisconsin Telefile and Wis e-File system file outage
6/10/2018 12:00 AM6/10/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-06-10_MTA_Telefile_WI-efile_Outages.ics1306
WT-6 deposit report due - semi-monthly
6/15/2018 12:00 AM6/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-06-15-WT-6-deposit-report-due-semi-monthly.ics1407
Cigarette/tobacco products return due - monthly
6/15/2018 12:00 AM6/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-06-15-Cigarette-tobacco-products-return-due-monthly.ics1409
Liquor/beer return due - monthly
6/15/2018 12:00 AM6/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-06-15-Liquor-beer-return-due-monthly.ics1411
Supplier, shipper ,transporter fuel tax payment due - monthly
6/15/2018 12:00 AM6/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-06-15-Supplier-shipper-transporter-fuel-tax-payment-due-monthly.ics1412
Blenders fuel tax return due - intermittent monthly
6/15/2018 12:00 AM6/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-06-15-Blenders-fuel-tax-return-due-intermittent-monthly.ics1413
Corp-ES 2nd corporation estimated payment due
6/15/2018 12:00 AM6/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-06-16-Corp-ES-2nd-Corporation-estimated-payment-due.ics1414
PW-ES 2nd pass-through withholding estimated payment due
6/15/2018 12:00 AM6/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-06-15-PW-es-2nd-pass-through-withholding-estimated-payment-due.ics1415
1-ES 2nd quarter individual income tax estimated payment due
6/15/2018 12:00 AM6/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-06-16-1-ES-2nd-quarter-individual-income-tax-estimated-payment-due.ics1416
Sales and use tax return due - early monthly
6/20/2018 12:00 AM6/20/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-06-20-Sales-and-Use-tax-return-due-early-monthly.ics1417
Aviation fuel tax return due - monthly
6/20/2018 12:00 AM6/20/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-06-20-Aviation-fuel-tax-return-due-monthly.ics1418
Alternate fuel, terminal operator return due - monthly
7/2/2018 12:00 AM7/2/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-02-Alternate-fuel-terminal-operator-return-due-monthly.ics1419
Supplier, shipper, transporter fuel tax return due - monthly
7/2/2018 12:00 AM7/2/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-02-Supplier-shipper-transporter-fuel-tax-return-due-monthly.ics1420
Sales and use tax return due - monthly
7/2/2018 12:00 AM7/2/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-02-Sales-and-Use-tax-return-due-monthly.ics1421
WT-6 deposit report due - semi-monthly and monthly
7/2/2018 12:00 AM7/2/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-02-WT-6-deposit-report-due-semi-monthly-and-monthly.ics1423
Local expo tax return due - monthly
7/2/2018 12:00 AM7/2/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-02-Local-expo-tax-return-due-monthly.ics1424
Premier resort tax return due - monthly
7/2/2018 12:00 AM7/2/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-02-Premier-resort-tax-return-due-monthly.ics1426
Police and fire protection fee due - monthly
7/2/2018 12:00 AM7/2/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-02-Police-and-fire-protection-fee-due-monthly.ics1427
State of Wisconsin holiday - Revenue offices closed
7/4/2018 12:00 AM7/4/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-04-State-of-Wisconsin-holiday-Revenue-offices-closed.ics1428
WT-6 deposit report due - semi-monthly
7/16/2018 12:00 AM7/16/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-16-WT-6-deposit-report-due-semi-monthly.ics1429
Cigarette/tobacco products return due - monthly, quarterly
7/16/2018 12:00 AM7/16/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-16-Cigarette-tobacco-products-return-due-monthly-quarterly.ics1431
Liquor/beer return due - monthly
7/16/2018 12:00 AM7/16/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-16-Liquor-beer-return-due-monthly.ics1432
Supplier, shipper, transporter fuel tax payment due - monthly
7/16/2018 12:00 AM7/16/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-16-Supplier-shipper-transporter-fuel-tax-payment-due-monthly.ics1433
Blenders fuel tax return due - intermittent monthly
7/16/2018 12:00 AM7/16/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-16-Blenders-fuel-tax-return-due-intermittent-monthly.ics1434
Wine direct shippers return due - quarterly
7/16/2018 12:00 AM7/16/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-16-Wine-direct-shippers-return-due-quarterly.ics1435
Sales and use tax return due - early monthly
7/20/2018 12:00 AM7/20/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-20-Sales-and-Use-tax-return-due-early-monthly.ics1436
Aviation fuel tax return due - monthly, quarterly
7/20/2018 12:00 AM7/20/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-20-Aviation-fuel-tax-return-due-monthly-quarterly.ics1437
2nd quarter dry cleaning fee returns due
7/25/2018 12:00 AM7/25/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-25-2nd-quarter-dry-cleaning-fee-returns-due.ics1438
My Tax Account,  Wisconsin Telefile and Wis e-File system file outage 5am-noon
7/29/2018 5:00 AM7/29/2018 12:00 PMhttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-29_MTA_Telefile_WI-efile_Outages.ics1304
Sales and use tax return due - monthly and quarterly
7/31/2018 12:00 AM7/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-31-Sales-and-Use-tax-return-due-monthly-and-quarterly.ics1439
WT-6 deposit report due - semi-monthly, monthly and quarterly
7/31/2018 12:00 AM7/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-31-WT-6-deposit-report-due-semi-monthly-monthly-and-quarterly.ics1440
Local expo tax return due - monthly and quarterly
7/31/2018 12:00 AM7/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-31-Local-expo-tax-return-due-monthly-and-quarterly.ics1441
Premier resort tax return due - monthly and quarterly
7/31/2018 12:00 AM7/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-31-Premier-resort-tax-return-due-monthly-and-quarterly.ics1442
Police and fire protection fee due - monthly
7/31/2018 12:00 AM7/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-31-Police-and-fire-protection-fee-due-monthly.ics1443
Rental vehicle tax return due - quarterly
7/31/2018 12:00 AM7/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-31-Rental-vehicle-tax-return-due-quarterly.ics1444
Alternate fuel, terminal operator return due - monthly, quarterly
7/31/2018 12:00 AM7/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-31-Alternate-fuel-terminal-operator-return-due-monthly-quarterly.ics1445
Supplier, shipper, transporter fuel tax return due - monthly
7/31/2018 12:00 AM7/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-07-31-Supplier-shipper-transporter-fuel-tax-return-due-monthly.ics1446
WT-6 deposit report due - semi-monthly
8/15/2018 12:00 AM8/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-08-15-WT-6-deposit-report-due-semi-monthly.ics1447
Cigarette/tobacco products return due - monthly
8/15/2018 12:00 AM8/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-08-15-Cigarette-tobacco-products-return-due-monthly.ics1448
Liquor/beer return due - monthly
8/15/2018 12:00 AM8/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-08-15-Liquor-beer-return-due-monthly.ics1449
Supplier, shipper, transporter fuel tax payment due - monthly
8/15/2018 12:00 AM8/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-08-15-Supplier-shipper-transporter-fuel-tax-payment-due-monthly.ics1450
Blenders fuel tax return due - intermittent monthly
8/15/2018 12:00 AM8/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-08-15-Blenders-fuel-tax-return-due-intermittent-monthly.ics1451
Sales and use tax return due - early monthly
8/20/2018 12:00 AM8/20/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-08-20-Sales-and-Use-tax-return-due-early-monthly.ics1452
Aviation fuel tax return due - monthly
8/20/2018 12:00 AM8/20/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-08-20-Aviation-fuel-tax-return-due-monthly.ics1453
My Tax Account, Wisconsin Telefile and Wis e-File system file outage
8/26/2018 5:00 AM8/26/2018 12:00 PMhttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-08-26_MTA_Telefile_WI-efile_Outages.ics1307
Sales and use tax return due - monthly
8/31/2018 12:00 AM8/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-08-31-Sales-and-Use-tax-return-due-monthly.ics1454
WT-6 deposit report due - semi-monthly and monthly
8/31/2018 12:00 AM8/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-08-31-WT-6-deposit-report-due-semi-monthly-and-monthly.ics1455
Local expo tax return due - monthly
8/31/2018 12:00 AM8/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-08-31-Local-expo-tax-return-due-monthly.ics1456
Premier resort tax return due - monthly
8/31/2018 12:00 AM8/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-08-31-Premier-resort-tax-return-due-monthly.ics1458
Police and fire protection fee due - monthly
8/31/2018 12:00 AM8/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-08-31-Police-and-fire-protection-fee-due-monthly.ics1459
Alternate fuel, terminal operator return due - monthly
8/31/2018 12:00 AM8/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-08-31-Alternate-fuel-terminal-operator-return-due-monthly.ics1460
Supplier, shipper, transporter fuel tax return due - monthly
8/31/2018 12:00 AM8/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-08-31-Supplier-shipper-transporter-fuel-tax-return-due-monthly.ics1461
State of Wisconsin holiday - Revenue offices closed
9/3/2018 12:00 AM9/3/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-09-03-State-of-Wisconsin-holiday-Revenue-offices-closed.ics1462
My Tax Account, Wisconsin Telefile and Wis e-File system file outage
9/8/2018 12:00 AM9/8/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-09-08_MTA_Telefile_WI-efile_Outages.ics1308
My Tax Account, Wisconsin Telefile and Wis e-File system file outage
9/9/2018 12:00 AM9/9/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-09-09_MTA_Telefile_WI-efile_Outages.ics1309
WT-6 deposit report due - semi-monthly
9/17/2018 12:00 AM9/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-09-17-WT-6-deposit-report-due-semi-monthly.ics1468
Cigarette/tobacco products return due - monthly
9/17/2018 12:00 AM9/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-09-17-Cigarette-tobacco-products-return-due-monthly.ics1469
Liquor/beer return due - monthly
9/17/2018 12:00 AM9/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-09-17-Liquor-beer-return-due-monthly.ics1470
Supplier, shipper, transporter fuel tax payment due - monthly
9/17/2018 12:00 AM9/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-09-17-Supplier-shipper-transporter-fuel-tax-payment-due-monthly.ics1471
Blenders fuel tax return due - intermittent monthly
9/17/2018 12:00 AM9/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-09-17-Blenders-fuel-tax-return-due-intermittent-monthly.ics1472
PW-ES 3rd pass-through withholding estimated payment due
9/17/2018 12:00 AM9/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-09-17-PW-ES-3rd-pass-through-withholding-estimated-payment-due.ics1473
Partnership tax return extension deadline
9/17/2018 12:00 AM9/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-09-17-Partnership-tax-return-extension-deadline.ics1474
Corp-ES 3rd corporation estimated payment due
9/17/2018 12:00 AM9/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-09-17-Corp-ES-3rd-Corporation-estimated-payment-due.ics1475
1-ES 3rd quarter individual income tax estimated payment due
9/17/2018 12:00 AM9/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-09-20-1-ES-3rd-quarter-individual-income-tax-estimated-payment-due.ics1476
Sales and use tax return due - early monthly
9/20/2018 12:00 AM9/20/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-09-20-Sales-and-Use-tax-return-due-early-monthly.ics1477
Aviation fuel tax return due - monthly
9/20/2018 12:00 AM9/20/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-09-20-Aviation-fuel-tax-return-due-monthly.ics1478
Sales and use tax return due - monthly
10/1/2018 12:00 AM10/1/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-01-Sales-and-Use-tax-return-due-monthly.ics1479
WT-6 deposit report due - semi-monthly and monthly
10/1/2018 12:00 AM10/1/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-01-WT-6-deposit-report-due-semi-monthly-and-monthly.ics1480
Local expo tax return due - monthly
10/1/2018 12:00 AM10/1/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-01-Local-expo-tax-return-due-monthly.ics1481
Premier resort tax return due - monthly
10/1/2018 12:00 AM10/1/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-01-Premier-resort-tax-return-due-monthly.ics1482
Police and fire protection fee due - monthly
10/1/2018 12:00 AM10/1/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-01-Police-and-fire-protection-fee-due-monthly.ics1483
Alternate fuel, terminal operator return due - monthly
10/1/2018 12:00 AM10/1/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-01-Alternate-fuel-terminal-operator-return-due-monthly.ics1484
Supplier, shipper, transporter fuel tax return due - monthly
10/1/2018 12:00 AM10/1/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-01-Supplier-shipper-transporter-fuel-tax-return-due-monthly.ics1485
Fiduciary tax return extension deadline
10/1/2018 12:00 AM10/1/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-01-Fiduciary-tax-return-extension-deadline.ics1486
1CNP extension deadline
10/15/2018 12:00 AM10/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-15-01-1CNP-extension-deadline.ics1487
1CNS extension deadline
10/15/2018 12:00 AM10/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-15-1CNS-extension-deadline.ics1488
S Corporation tax return extension deadline
10/15/2018 12:00 AM10/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-15-S-Corporation-tax-return-extension-deadline.ics1489
Exempt employee's trust, ISA, MSA Fiduciary tax return extension deadline
10/15/2018 12:00 AM10/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-15-Exempt-employees-trust-IRA-MSA-fiduciary-income-tax-return-extension-deadline.ics1490
PW-1 (Partnerships) extension deadline
10/15/2018 12:00 AM10/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-15-PW-1-partnerships-extension-deadline.ics1491
PW-1 (S Corps) extension deadline
10/15/2018 12:00 AM10/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-15-PW-1-S-corps-extension-deadline.ics1492
WT-6 deposit report due - semi-monthly
10/15/2018 12:00 AM10/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-15-WT-6-deposit-report-due-semi-monthly.ics1493
Cigarette/tobacco products return due - monthly, quarterly
10/15/2018 12:00 AM10/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-15-Cigarette-tobacco-products-return-due-monthly-quarterly.ics1494
Liquor/beer return due - monthly
10/15/2018 12:00 AM10/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-15-Liquor-beer-return-due-monthly.ics1495
Supplier, shipper, transporter fuel tax payment due - monthly
10/15/2018 12:00 AM10/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-15-Supplier-shipper-transporter-fuel-tax-payment-due-monthly.ics1496
Blenders fuel tax return due - intermittent monthly
10/15/2018 12:00 AM10/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-15-Blenders-fuel-tax-return-due-intermittent-monthly.ics1497
Wine direct shippers return due - quarterly
10/15/2018 12:00 AM10/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-15-Wine-direct-shippers-return-due-quarterly.ics1498
Individual income tax returns extension deadline
10/15/2018 12:00 AM10/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-15-Individual-income-tax-returns-extension-deadline.ics1499
Sales and use tax return due - early monthly
10/22/2018 12:00 AM10/22/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-22-Sales-and-Use-tax-return-due-early-monthly.ics1500
Aviation fuel tax return due - monthly, quarterly
10/22/2018 12:00 AM10/22/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-22-Aviation-fuel-tax-return-due-monthly.ics1501
3rd quarter dry cleaning fee returns due
10/25/2018 12:00 AM10/25/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-25-3rd-quarter-dry-cleaning-fee-returns-due.ics1502
My Tax Account, Wisconsin Telefile and Wis e-File system file outage
10/28/2018 5:00 AM10/28/2018 12:00 PMhttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-28_MTA_Telefile_WI-efile_Outages.ics1310
Sales and use tax return due - monthly and quarterly
10/31/2018 12:00 AM10/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-31-Sales-and-Use-tax-return-due-monthly-and-quarterly.ics1503
WT-6 deposit report due - semi-monthly, monthly and quarterly
10/31/2018 12:00 AM10/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-31-WT-6-deposit-report-due-semi-monthly-monthly-and-quarterly.ics1504
Local expo tax return due - monthly and quarterly
10/31/2018 12:00 AM10/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-31-Local-expo-tax-return-due-monthly-and-quarterly.ics1505
Premier resort tax return due - monthly and quarterly
10/31/2018 12:00 AM10/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-31-Premier-resort-tax-return-due-monthly-and-quarterly.ics1506
Police and fire protection fee due - monthly
10/31/2018 12:00 AM10/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-31-Police-and-fire-protection-fee-due-monthly.ics1507
Rental vehicle tax return due - quarterly
10/31/2018 12:00 AM10/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-31-Rental-vehicle-tax-return-due-quarterly.ics1508
Alternate fuel, terminal operator return due - monthly, quarterly
10/31/2018 12:00 AM10/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-31-Alternate-fuel-terminal-operator-return-due-monthly-quarterly.ics1509
Supplier, shipper, transporter fuel tax return due - monthly
10/31/2018 12:00 AM10/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-10-31-Supplier-shipper-transporter-fuel-tax-return-due-monthly.ics1510
WT-6 deposit report due - semi-monthly
11/15/2018 12:00 AM11/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-11-15-WT-6-deposit-report-due-semi-monthly.ics1511
PW-1 (Estates and trusts) extension deadline
11/15/2018 12:00 AM11/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-11-15-PW-1-estates-and-trusts-extension-deadline.ics1512
Corporation tax return extension deadline (Non-combined and Combined)
11/15/2018 12:00 AM11/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-11-15-Corporation-tax-return-extension-deadline-non-combined-and-combined.ics1513
Cigarette/tobacco products return due - monthly
11/15/2018 12:00 AM11/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-11-15-Cigarette-tobacco-products-return-due-monthly.ics1514
Liquor/beer return due - monthly
11/15/2018 12:00 AM11/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-11-15-Liquor-beer-return-due-monthly.ics1515
Supplier, shipper, transporter fuel tax payment due - monthly
11/15/2018 12:00 AM11/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-11-15-Supplier-shipper-transporter-fuel-tax-payment-due-monthly.ics1516
Blenders fuel tax return due - intermittent monthly
11/15/2018 12:00 AM11/15/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-11-15-Blenders-fuel-tax-return-due-intermittent-monthly.ics1517
My Tax Account, Wisconsin Telefile and Wis e-File system file outage
11/18/2018 5:00 AM11/18/2018 12:00 PMhttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-11-18_MTA_Telefile_WI-efile_Outages.ics1311
Sales and use tax return due - early monthly
11/20/2018 12:00 AM11/20/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-11-20-Sales-and-Use-tax-return-due-early-monthly.ics1518
Aviation fuel tax return due - monthly
11/20/2018 12:00 AM11/20/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-11-20-Aviation-fuel-tax-return-due-monthly.ics1519
State of Wisconsin holiday - Revenue offices closed
11/22/2018 12:00 AM11/22/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-11-22-State-of-Wisconsin-holiday-Revenue-offices-closed.ics1463
Sales and use tax return due - monthly
11/30/2018 12:00 AM11/30/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-11-30-Sales-and-Use-tax-return-due-monthly.ics1520
WT-6 deposit report due - semi-monthly and monthly
11/30/2018 12:00 AM11/30/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-11-30-WT-6-deposit-report-due-semi-monthly-and-monthly.ics1521
Local expo tax return due - monthly
11/30/2018 12:00 AM11/30/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-11-30-Local-expo-tax-return-due-monthly.ics1522
Premier resort tax return due - monthly
11/30/2018 12:00 AM11/30/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-11-30-Premier-resort-tax-return-due-monthly.ics1523
Police and fire protection fee due - monthly
11/30/2018 12:00 AM11/30/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-11-30-Police-and-fire-protection-fee-due-monthly.ics1524
Alternate fuel, terminal operator return due - monthly
11/30/2018 12:00 AM11/30/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-11-30-Alternate-fuel-terminal-operator-return-due-monthly.ics1525
Supplier, shipper, transporter fuel tax return due - monthly
11/30/2018 12:00 AM11/30/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-11-30-Supplier-shipper-transporter-fuel-tax-return-due-monthly.ics1526
My Tax Account, Wisconsin Telefile and Wis e-File system file outage
12/9/2018 5:00 AM12/9/2018 12:00 PMhttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-12-09_MTA_Telefile_WI-efile_Outages.ics1312
WT-6 deposit report due - semi-monthly
12/17/2018 12:00 AM12/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-12-17-WT-6-deposit-report-due-semi-monthly.ics1527
Exempt corporation tax return extension deadline
12/17/2018 12:00 AM12/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-12-17-Exempt-corporation-tax-return-extension-deadline.ics1528
Exempt non-employee's trust, IRA, MSA Fiduciary  tax return extension deadline
12/17/2018 12:00 AM12/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-12-17-Exempt-non-employees-trust-IRA-MSA-fiduciary-tax-return-extension-deadline.ics1529
Cigarette/tobacco products return due - monthly
12/17/2018 12:00 AM12/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-12-17-Cigarette-tobacco-products-return-due-monthly.ics1530
Liquor/beer return due - monthly
12/17/2018 12:00 AM12/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-12-17-Liquor-beer-return-due-monthly.ics1531
Supplier, shipper, transporter fuel tax payment due - monthly
12/17/2018 12:00 AM12/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-12-17-Supplier-shipper-transporter-fuel-tax-payment-due-monthly.ics1532
Blenders fuel tax return due - intermittent monthly
12/17/2018 12:00 AM12/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-12-17-Blenders-fuel-tax-return-due-intermittent-monthly.ics1533
PW-ES 4th pass-through withholding estimated payment due
12/17/2018 12:00 AM12/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-12-17-PW-ES-4th-pass-through-withholding-estimated-payment-due.ics1534
Corp-ES 4th corporation estimated payment due
12/17/2018 12:00 AM12/17/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-12-17-Corp-ES-4th-corporation-estimated-payment-due.ics1535
Sales and use tax return due - early monthly
12/20/2018 12:00 AM12/20/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-12-20-Sales-and-Use-tax-return-due-early-monthly.ics1536
Aviation fuel tax return due - monthly
12/20/2018 12:00 AM12/20/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-12-20-Aviation-fuel-tax-return-due-monthly.ics1537
State of Wisconsin holiday - Revenue offices closed
12/24/2018 12:00 AM12/24/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-12-24-State-of-Wisconsin-holiday-Revenue-offices-closed.ics1464
State of Wisconsin holiday - Revenue offices closed
12/25/2018 12:00 AM12/25/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-12-25-State-of-Wisconsin-holiday-Revenue-offices-closed.ics1465
State of Wisconsin holiday - Revenue offices closed
12/31/2018 12:00 AM12/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-12-31-State-of-Wisconsin-holiday-Revenue-offices-closed.ics1466
Qualified Wisconsin Business registration deadline
12/31/2018 12:00 AM12/31/2018 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2018-12-31-Qualified-Wisconsin-Business-registration-deadline.ics1538
State of Wisconsin holiday - Revenue offices closed
1/1/2019 12:00 AM1/1/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-01-01-State-of-Wisconsin-holiday-Revenue-offices-closed.ics1467