Tax Professionals Calendar

  
Description
  
  
  
  
  
  
State Holiday - Offices Closed
5/27/2019 12:00 AM5/27/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-05-27-State-Offices-Closed.ics1541
Sales and use tax return due - monthly
5/31/2019 12:00 AM5/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-05-31-Sales-and-Use-tax-return-due-monthly.ics1663
WT-6 deposit report due - semi-monthly and monthly
5/31/2019 12:00 AM5/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-05-31-WT-6-deposit-report-due-semimonthly-and-monthly.ics1664
Local expo tax return due - monthly
5/31/2019 12:00 AM5/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-05-31-Local-expo-tax-return-due-monthly.ics1665
Premier resort tax return due - monthly
5/31/2019 12:00 AM5/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-05-31-Premier-resort-tax-return-due-monthly.ics1666
Police and fire protection fee due - monthly
5/31/2019 12:00 AM5/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-05-31-Police-and-fire-protection-fee-due-monthly.ics1667
Alternate fuel, terminal operator return due - monthly
5/31/2019 12:00 AM5/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-05-31-Alternate-fuel-terminal-operator-return-due-monthly.ics1668
Supplier, shipper, transporter fuel tax return due - monthly
5/31/2019 12:00 AM5/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-05-31-SupplierShipperTransporter-fuel-tax-return-due-monthly.ics1669
Ambulatory surgical center assessment due
5/31/2019 12:00 AM5/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-05-31-Ambulatory-surgical-center-assessment-due.ics1670
WT-6 deposit report due - semi-monthly
6/17/2019 12:00 AM6/17/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-06-17-WT-6-deposit-report-due-semimonthly.ics1671
Cigarette, tobacco products return due - monthly
6/17/2019 12:00 AM6/17/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-06-17-Cigarette-tobacco-products-return-due-monthly.ics1672
Liquor, beer return due - monthly
6/17/2019 12:00 AM6/17/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-06-17-Liquor-beer-return-due-monthly.ics1673
Supplier, shipper, transporter fuel tax payment due - monthly
6/17/2019 12:00 AM6/17/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-06-17-SupplierShipper-fuel-tax-payment-due-monthly.ics1674
Blenders fuel tax return due - intermittent monthly
6/17/2019 12:00 AM6/17/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-06-17-blenders-fuel-tax-return-due-intermittent-monthly.ics1675
Corp-ES 2nd corporation estimated payment due
6/17/2019 12:00 AM6/17/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-06-17-Corp-ES-2nd-estimated-payment-due.ics1676
PW-ES 2nd pass-through withholding estimated payment due
6/17/2019 12:00 AM6/17/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-06-17-PW-ES-2nd-pass-through-withholding-estimated-payment-due.ics1677
1-ES 2nd quarter individual income tax estimated payment due
6/17/2019 12:00 AM6/17/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-06-17-1-ES-2nd-quarter-individual-income-tax-estimated-payment-due.ics1678
Sales and use tax return due - early monthly
6/20/2019 12:00 AM6/20/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-06-20-Sales-and-Use-tax-return-due-early-monthly.ics1679
Aviation fuel tax return due - monthly
6/20/2019 12:00 AM6/20/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-06-20-aviation-fuel-tax-return-due-monthly.ics1680
My Tax Account,  Wisconsin Telefile and Wis e-File system file outage
6/22/2019 12:00 AM6/22/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-06-22-MTA-WI-Telefile-WI-E-file-system-file-outage.ics1555
My Tax Account,  Wisconsin Telefile and Wis e-File system file outage
6/23/2019 12:00 AM6/23/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-06-23-MTA-WI-Telefile-WI-E-file-system-file-outage.ics1556
Alternate fuel, terminal operator return due - monthly
7/1/2019 12:00 AM7/1/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-01-Alternate-fuel-terminal-operator-return-due-monthly.ics1681
Supplier, shipper, transporter fuel tax return due - monthly
7/1/2019 12:00 AM7/1/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-01-SupplierShipperTransporter-fuel-tax-return-due-monthly.ics1682
Sales and use tax return due - monthly
7/1/2019 12:00 AM7/1/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-01-Sales-and-Use-tax-return-due-monthly.ics1683
WT-6 deposit report due - semi-monthly and monthly
7/1/2019 12:00 AM7/1/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-01-WT-6-deposit-report-due-semimonthly-and-monthly.ics1684
Local expo tax return due - monthly
7/1/2019 12:00 AM7/1/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-01-Local-expo-tax-return-due-monthly.ics1685
Premier resort tax return due - monthly
7/1/2019 12:00 AM7/1/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-01-Premier-resort-tax-return-due-monthly.ics1686
Police and fire protection fee due - monthly
7/1/2019 12:00 AM7/1/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-01-Police-and-fire-protection-fee-due-monthly.ics1687
State Holiday - Offices Closed
7/4/2019 12:00 AM7/4/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-04-State-Offices-Closed.ics1542
My Tax Account,  Wisconsin Telefile and Wis e-File system file outage
7/7/2019 5:00 AM7/7/2019 12:00 PMhttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-07-Winpas-Outage.ics1557
WT-6 deposit report due - semi-monthly
7/15/2019 12:00 AM7/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-15-WT-6-deposit-report-due-semimonthly.ics1688
Cigarette, tobacco products return due - monthly, quarterly
7/15/2019 12:00 AM7/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-15-Cigarette-tobacco-products-return-due-monthly-quarterly.ics1689
Liquor, beer return due - monthly
7/15/2019 12:00 AM7/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-15-Liquor-beer-return-due-monthly.ics1690
Supplier, shipper, transporter fuel tax payment due - monthly
7/15/2019 12:00 AM7/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-15-SupplierShipper-fuel-tax-payment-due-monthly.ics1691
Blenders fuel tax return due - intermittent monthly
7/15/2019 12:00 AM7/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-15-blenders-fuel-tax-return-due-intermittent-monthly.ics1692
Wine direct shippers return due - quarterly
7/15/2019 12:00 AM7/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-15-wine-direct-shippers-return-due-quarterly.ics1693
Sales and use tax return due - early monthly
7/22/2019 12:00 AM7/22/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-22-Sales-and-Use-tax-return-due-early-monthly.ics1694
Aviation fuel tax return due - monthly, quarterly
7/22/2019 12:00 AM7/22/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-22-aviation-fuel-tax-return-due-monthly-quarterly.ics1695
2nd quarter dry cleaning fee returns due
7/25/2019 12:00 AM7/25/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-25-2nd-quarter-dry-cleaning-fee-returns-due.ics1696
Sales and use tax return due - monthly and quarterly
7/31/2019 12:00 AM7/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-31-Sales-and-Use-tax-return-due-monthly-quarterly.ics1697
WT-6 deposit report due - semi-monthly, monthly and quarterly
7/31/2019 12:00 AM7/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-31-WT-6-deposit-report-due-semimonthly-monthly-quarterly.ics1698
Local expo tax return due - monthly and quarterly
7/31/2019 12:00 AM7/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-31-Local-expo-tax-return-due-monthly-quarterly.ics1699
Premier resort tax return due - monthly and quarterly
7/31/2019 12:00 AM7/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-31-Premier-resort-tax-return-due-monthly-quarterly.ics1700
Police and fire protection fee due - monthly
7/31/2019 12:00 AM7/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-31-Police-and-fire-protection-fee-due-monthly.ics1701
Rental vehicle tax return due - quarterly
7/31/2019 12:00 AM7/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-31-Rental-vehicle-tax-return-due-quarterly.ics1702
Alternate fuel, terminal operator return due - monthly, quarterly
7/31/2019 12:00 AM7/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-31-Alternate-fuel-terminal-operator-return-due-monthly-quarterly.ics1703
Supplier, shipper, transporter fuel tax return due - monthly
7/31/2019 12:00 AM7/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-07-31-SupplierShipperTransporter-fuel-tax-return-due-monthly.ics1704
My Tax Account,  Wisconsin Telefile and Wis e-File system file outage
8/4/2019 5:00 AM8/4/2019 12:00 PMhttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-08-04-Winpas-Outage.ics1558
WT-6 deposit report due - semi-monthly
8/15/2019 12:00 AM8/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-08-15-WT-6-deposit-report-due-semimonthly.ics1705
Cigarette, tobacco products return due - monthly
8/15/2019 12:00 AM8/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-08-15-Cigarette-tobacco-products-return-due-monthly.ics1706
Liquor, beer return due - monthly
8/15/2019 12:00 AM8/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-08-15-Liquor-beer-return-due-monthly.ics1707
Supplier, shipper, transporter fuel tax payment due - monthly
8/15/2019 12:00 AM8/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-08-15-SupplierShipper-fuel-tax-payment-due-monthly.ics1708
Blenders fuel tax return due - intermittent monthly
8/15/2019 12:00 AM8/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-08-15-blenders-fuel-tax-return-due-intermittent-monthly.ics1709
Sales and use tax return due - early monthly
8/20/2019 12:00 AM8/20/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-08-20-Sales-and-Use-tax-return-due-early-monthly.ics1710
Aviation fuel tax return due - monthly
8/20/2019 12:00 AM8/20/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-08-20-aviation-fuel-tax-return-due-monthly.ics1711
State Holiday - Offices Closed
9/2/2019 12:00 AM9/2/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-02-State-Offices-Closed.ics1543
Sales and use tax return due - monthly
9/3/2019 12:00 AM9/3/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-03-Sales-and-Use-tax-return-due-monthly.ics1712
WT-6 deposit report due - semi-monthly and monthly
9/3/2019 12:00 AM9/3/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-03-WT-6-deposit-report-due-semimonthly-and-monthly.ics1713
Local expo tax return due - monthly
9/3/2019 12:00 AM9/3/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-03-Local-expo-tax-return-due-monthly.ics1714
Premier resort tax return due - monthly
9/3/2019 12:00 AM9/3/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-03-Premier-resort-tax-return-due-monthly.ics1715
Police and fire protection fee due - monthly
9/3/2019 12:00 AM9/3/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-03-Police-and-fire-protection-fee-due-monthly.ics1716
Alternate fuel, terminal operator return due - monthly
9/3/2019 12:00 AM9/3/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-03-Alternate-fuel-terminal-operator-return-due-monthly.ics1717
Supplier, shipper, transporter fuel tax return due - monthly
9/3/2019 12:00 AM9/3/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-03-SupplierShipperTransporter-fuel-tax-return-due-monthly.ics1718
My Tax Account,  Wisconsin Telefile and Wis e-File system file outage
9/7/2019 12:00 AM9/7/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-07-Winpas-Outage.ics1559
My Tax Account,  Wisconsin Telefile and Wis e-File system file outage
9/8/2019 12:00 AM9/8/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-08-Winpas-Outage.ics1560
WT-6 deposit report due - semi-monthly
9/16/2019 12:00 AM9/16/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-16-WT-6-deposit-report-due-semimonthly.ics1719
Cigarette, tobacco products return due - monthly
9/16/2019 12:00 AM9/16/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-16-Cigarette-tobacco-products-return-due-monthly.ics1720
Liquor, beer return due - monthly
9/16/2019 12:00 AM9/16/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-16-Liquor-beer-return-due-monthly.ics1721
Supplier, shipper, transporter fuel tax payment due - monthly
9/16/2019 12:00 AM9/16/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-16-SupplierShipper-fuel-tax-payment-due-monthly.ics1722
Blenders fuel tax return due - intermittent monthly
9/16/2019 12:00 AM9/16/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-16-blenders-fuel-tax-return-due-intermittent-monthly.ics1723
PW-ES 3rd pass-through withholding estimated payment due
9/16/2019 12:00 AM9/16/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-16-PW-ES-3rd-pass-through-withholding-estimated-payment-due.ics1724
Partnership tax return extension deadline
9/16/2019 12:00 AM9/16/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-16-Partnership-tax-return-extension-deadline.ics1725
Corp-ES 3rd corporation estimated payment due
9/16/2019 12:00 AM9/16/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-16-Corp-ES-3rd-estimated-payment-due.ics1726
1-ES 3rd quarter individual income tax estimated payment due
9/16/2019 12:00 AM9/16/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-16-1-ES-3rd-quarter-individual-income-tax-estimated-payment-due.ics1727
Sales and use tax return due - early monthly
9/20/2019 12:00 AM9/20/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-20-Sales-and-Use-tax-return-due-early-monthly.ics1728
Aviation fuel tax return due - monthly
9/20/2019 12:00 AM9/20/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-20-aviation-fuel-tax-return-due-monthly.ics1729
Sales and use tax return due - monthly
9/30/2019 12:00 AM9/30/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-30-Sales-and-Use-tax-return-due-monthly.ics1730
WT-6 deposit report due - semi-monthly and monthly
9/30/2019 12:00 AM9/30/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-30-WT-6-deposit-report-due-semimonthly-and-monthly.ics1731
Local expo tax return due - monthly
9/30/2019 12:00 AM9/30/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-30-Local-expo-tax-return-due-monthly.ics1732
Premier resort tax return due - monthly
9/30/2019 12:00 AM9/30/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-30-Premier-resort-tax-return-due-monthly.ics1733
Police and fire protection fee due - monthly
9/30/2019 12:00 AM9/30/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-30-Police-and-fire-protection-fee-due-monthly.ics1734
Alternate fuel, terminal operator return due - monthly
9/30/2019 12:00 AM9/30/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-30-Alternate-fuel-terminal-operator-return-due-monthly.ics1735
Supplier, shipper, transporter fuel tax return due - monthly
9/30/2019 12:00 AM9/30/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-30-SupplierShipperTransporter-fuel-tax-return-due-monthly.ics1736
Fiduciary tax return extension deadline
9/30/2019 12:00 AM9/30/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-09-30-Fiduciary-tax-return-extension-deadline.ics1737
1CNP extension deadline
10/15/2019 12:00 AM10/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-15-1CNP-extension-deadline.ics1738
1CNS extension deadline
10/15/2019 12:00 AM10/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-15-1CNS-extension-deadline.ics1739
S Corporation tax return extension deadline
10/15/2019 12:00 AM10/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-15-S-Corporation-tax-return-extension-deadline.ics1740
Exempt employee's trust, ISA, MSA Fiduciary tax return extension deadline
10/15/2019 12:00 AM10/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-15-exempt-employee-trust-IRA-MSA-fiduciary-tax-return-extension-deadline.ics1741
PW-1 (Partnerships) extension deadline
10/15/2019 12:00 AM10/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-15-PW-1-Partnerships-extension-deadline.ics1742
PW-1 (S Corps) extension deadline
10/15/2019 12:00 AM10/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-15-PW-1-S-Corps-extension-deadline.ics1743
WT-6 deposit report due - semi-monthly
10/15/2019 12:00 AM10/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-15-WT-6-deposit-report-due-semimonthly.ics1744
Cigarette, tobacco products return due - monthly, quarterly
10/15/2019 12:00 AM10/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-15-Cigarette-tobacco-products-return-due-monthly-quarterly.ics1745
Liquor, beer return due - monthly
10/15/2019 12:00 AM10/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-15-Liquor-beer-return-due-monthly.ics1746
Supplier, shipper, transporter fuel tax payment due - monthly
10/15/2019 12:00 AM10/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-15-SupplierShipper-fuel-tax-payment-due-monthly.ics1747
Blenders fuel tax return due - intermittent monthly
10/15/2019 12:00 AM10/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-15-blenders-fuel-tax-return-due-intermittent-monthly.ics1748
Wine direct shippers return due - quarterly
10/15/2019 12:00 AM10/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-15-wine-direct-shippers-return-due-quarterly.ics1749
Individual income tax returns extension deadline
10/15/2019 12:00 AM10/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-15-Individual-income-tax-returns-extension-deadline.ics1750
Sales and use tax return due - early monthly
10/21/2019 12:00 AM10/21/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-21-Sales-and-Use-tax-return-due-early-monthly.ics1751
Aviation fuel tax return due - monthly, quarterly
10/21/2019 12:00 AM10/21/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-21-aviation-fuel-tax-return-due-monthly-quarterly.ics1752
3rd quarter dry cleaning fee returns due
10/25/2019 12:00 AM10/25/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-25-3rd-quarter-dry-cleaning-fee-returns-due.ics1753
My Tax Account,  Wisconsin Telefile and Wis e-File system file outage
10/27/2019 5:00 AM10/27/2019 12:00 PMhttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-27-Winpas-Outage.ics1561
Sales and use tax return due - monthly and quarterly
10/31/2019 12:00 AM10/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-31-Sales-and-Use-tax-return-due-monthly-quarterly.ics1754
WT-6 deposit report due - semi-monthly, monthly and quarterly
10/31/2019 12:00 AM10/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-31-WT-6-deposit-report-due-semimonthly-monthly-quarterly.ics1755
Local expo tax return due - monthly and quarterly
10/31/2019 12:00 AM10/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-31-Local-expo-tax-return-due-monthly-quarterly.ics1756
Premier resort tax return due - monthly and quarterly
10/31/2019 12:00 AM10/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-31-Premier-resort-tax-return-due-monthly-quarterly.ics1757
Police and fire protection fee due - monthly
10/31/2019 12:00 AM10/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-31-Police-and-fire-protection-fee-due-monthly.ics1758
Rental vehicle tax return due - quarterly
10/31/2019 12:00 AM10/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-31-Rental-vehicle-tax-return-due-quarterly.ics1759
Alternate fuel, terminal operator return due - monthly, quarterly
10/31/2019 12:00 AM10/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-31-Alternate-fuel-terminal-operator-return-due-monthly-quarterly.ics1760
Supplier, shipper, transporter fuel tax return due - monthly
10/31/2019 12:00 AM10/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-10-31-SupplierShipperTransporter-fuel-tax-return-due-monthly.ics1761
My Tax Account,  Wisconsin Telefile and Wis e-File system file outage
11/10/2019 5:00 AM11/10/2019 12:00 PMhttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-11-10-Winpas-Outage.ics1562
WT-6 deposit report due - semi-monthly
11/15/2019 12:00 AM11/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-11-15-WT-6-deposit-report-due-semimonthly.ics1762
PW-1 (Estates and trusts) extension deadline
11/15/2019 12:00 AM11/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-11-15-PW-1-Estates-and-trusts-extension-deadline.ics1763
Corporation tax return extension deadline (Non-combined and Combined)
11/15/2019 12:00 AM11/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-11-15-Corporation-tax-return-extension-deadline-non-combined-and-combined.ics1764
Cigarette, tobacco products return due - monthly
11/15/2019 12:00 AM11/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-11-15-Cigarette-tobacco-products-return-due-monthly.ics1765
Liquor/beer return due - monthly
11/15/2019 12:00 AM11/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-11-15-Liquor-beer-return-due-monthly.ics1766
Supplier, shipper, transporter fuel tax payment due - monthly
11/15/2019 12:00 AM11/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-11-15-SupplierShipper-fuel-tax-payment-due-monthly.ics1767
Blenders fuel tax return due - intermittent monthly
11/15/2019 12:00 AM11/15/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-11-15-blenders-fuel-tax-return-due-intermittent-monthly.ics1768
Sales and use tax return due - early monthly
11/20/2019 12:00 AM11/20/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-11-20-Sales-and-Use-tax-return-due-early-monthly.ics1769
Aviation fuel tax return due - monthly
11/20/2019 12:00 AM11/20/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-11-20-aviation-fuel-tax-return-due-monthly.ics1770
State Holiday - Offices Closed
11/28/2019 12:00 AM11/28/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-11-28-State-Offices-Closed.ics1544
Sales and use tax return due - monthly
12/2/2019 12:00 AM12/2/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-12-02-Sales-and-Use-tax-return-due-monthly.ics1771
WT-6 deposit report due - semi-monthly and monthly
12/2/2019 12:00 AM12/2/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-12-02-WT-6-deposit-report-due-semimonthly-and-monthly.ics1772
Local expo tax return due - monthly
12/2/2019 12:00 AM12/2/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-12-02-Local-expo-tax-return-due-monthly.ics1773
Premier resort tax return due - monthly
12/2/2019 12:00 AM12/2/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-12-02-Premier-resort-tax-return-due-monthly.ics1774
Police and fire protection fee due - monthly
12/2/2019 12:00 AM12/2/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-12-02-Police-and-fire-protection-fee-due-monthly.ics1775
Alternate fuel, terminal operator return due - monthly
12/2/2019 12:00 AM12/2/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-12-02-Alternate-fuel-terminal-operator-return-due-monthly.ics1776
Supplier, shipper, transporter fuel tax return due - monthly
12/2/2019 12:00 AM12/2/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-12-02-SupplierShipperTransporter-fuel-tax-return-due-monthly.ics1777
My Tax Account,  Wisconsin Telefile and Wis e-File system file outage
12/8/2019 5:00 AM12/8/2019 12:00 PMhttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-12-08-Winpas-Outage.ics1563
WT-6 deposit report due - semi-monthly
12/16/2019 12:00 AM12/16/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-12-16-WT-6-deposit-report-due-semimonthly.ics1778
Exempt corporation tax return extension deadline
12/16/2019 12:00 AM12/16/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-12-16-exempt-corporation-tax-return-extension-deadline.ics1779
Exempt non-employee's trust, IRA, MSA Fiduciary  tax return extension deadline
12/16/2019 12:00 AM12/16/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-12-16-exempt-non-employee-trust-IRA-MSA-fiduciary-tax-return-extension-deadline.ics1780
Cigarette, tobacco products return due - monthly
12/16/2019 12:00 AM12/16/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-12-16-Cigarette-tobacco-products-return-due-monthly.ics1781
Liquor, beer return due - monthly
12/16/2019 12:00 AM12/16/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-12-16-Liquor-beer-return-due-monthly.ics1782
Supplier, shipper, transporter fuel tax payment due - monthly
12/16/2019 12:00 AM12/16/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-12-16-SupplierShipper-fuel-tax-payment-due-monthly.ics1783
Blenders fuel tax return due - intermittent monthly
12/16/2019 12:00 AM12/16/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-12-16-blenders-fuel-tax-return-due-intermittent-monthly.ics1784
PW-ES 4th pass-through withholding estimated payment due
12/16/2019 12:00 AM12/16/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-12-16-PW-ES-4th-pass-through-withholding-estimated-payment-due.ics1785
Corp-ES 4th corporation estimated payment due
12/16/2019 12:00 AM12/16/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-12-16-Corp-ES-4th-estimated-payment-due.ics1786
Sales and use tax return due - early monthly
12/20/2019 12:00 AM12/20/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-12-20-Sales-and-Use-tax-return-due-early-monthly.ics1787
Aviation fuel tax return due - monthly
12/20/2019 12:00 AM12/20/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-12-20-aviation-fuel-tax-return-due-monthly.ics1788
State Holiday - Offices Closed
12/24/2019 12:00 AM12/24/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-12-24-State-Offices-Closed.ics1545
State Holiday - Offices Closed
12/25/2019 12:00 AM12/25/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-12-25-State-Offices-Closed.ics1546
State Holiday - Offices Closed
12/31/2019 12:00 AM12/31/2019 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2019-12-31-State-Offices-Closed.ics1547
State Holiday - Offices Closed
1/1/2020 12:00 AM1/1/2020 11:59 PMYeshttps://revenue-auth-prod.wi.gov/EventDownloads/TaxProfessionals/2020-01-01-State-Offices-Closed.ics1548