Tax Professionals Calendar

  
Description
  
  
  
  
  
  
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