| 4th quarter dry cleaning fee returns due | | 1/25/2021 12:00 AM | 1/25/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-1-25-4th-quarter-dry-cleaning-fee-returns-due.ics | 2066 |
| Sales and use tax return due - monthly, quarterly and annual | | 2/1/2021 12:00 AM | 2/1/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-02-01-Sales-and-use-tax-return-due-monthly-quarterly-and-annual.ics | 2067 |
| WT-6 deposit report due - semi-monthly, monthly and quarterly | | 2/1/2021 12:00 AM | 2/1/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-02-01-WT-6-deposit-report-due-semi-monthly-monthly-and-quarterly.ics | 2068 |
| WT-7 reconciliation due, including wage statements and information returns | | 2/1/2021 12:00 AM | 2/1/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-02-01-WT-7-reconciliation-due-including-wage-statements-and-information-returns.ics | 2069 |
| Local expo tax return due - monthly | | 2/1/2021 12:00 AM | 2/1/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-02-01-Local-expo-tax-return-due-monthly.ics | 2070 |
| Premier resort tax return due - monthly, quarterly, annual | | 2/1/2021 12:00 AM | 2/1/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-02-01-Premier-resort-tax-return-due-monthly-quarterly-annual.ics | 2071 |
| Rental vehicle tax return due - quarterly | | 2/1/2021 12:00 AM | 2/1/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-02-01-Rental-vehicle-tax-return-due-quarterly.ics | 2072 |
| PW-2 due (Partnerships, estates and trusts) | | 2/1/2021 12:00 AM | 2/1/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-02-01-PW-2-due-Partnerships.ics | 2073 |
| Police and fire protection fee due - monthly | | 2/1/2021 12:00 AM | 2/1/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-02-01-Police-and-fire-protection-fee-due-monthly.ics | 2074 |
| Alternate fuel, terminal operator return due - monthly, quarterly | | 2/1/2021 12:00 AM | 2/1/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-02-01-Alternate-fuel-terminal-operator-return-due-monthly-quarterly.ics | 2075 |
| PW-2 due (Partnerships) | | 2/1/2021 12:00 AM | 2/1/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-02-01-PW-2-due-Partnerships.ics | 2076 |
| Wisconsin e-File, Wisconsin Telefile and My Tax Account file outage 5am-noon | | 2/7/2021 12:00 AM | 2/7/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-02-07-Wisconsin-e-File-Wisconsin-Telefile-and-My-Tax-Account-file-outage-5am-noon.ics | 2077 |
| WT-6 deposit report due - semi-monthly | | 2/15/2021 12:00 AM | 2/15/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-02-15-WT-6-deposit-report-due-semi-monthly.ics | 2078 |
| Cigarette-tobacco products return due - monthly | | 2/15/2021 12:00 AM | 2/15/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-02-15-Cigarette-tobacco-products-return-due-monthly.ics | 2079 |
| Liquor-beer return due - monthly | | 2/15/2021 12:00 AM | 2/15/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-02-15-Liquor-beer-return-due-monthly.ics | 2080 |
| Supplier, shipper, transporter fuel tax payment due - monthly | | 2/15/2021 12:00 AM | 2/15/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-02-15-Supplier-shipper-transporter-fuel-tax-payment-due-monthly.ics | 2081 |
| Blenders fuel tax return due - intermittent monthly | | 2/22/2021 12:00 AM | 2/22/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-02-22-Blenders-fuel-tax-return-due-intermittent-monthly.ics | 2082 |
| Sales and use tax return due - early monthly | | 2/22/2021 12:00 AM | 2/22/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-02-22-Sales-and-use-tax-return-due-early-monthly.ics | 2083 |
| Aviation fuel tax return due - monthly | | 2/22/2021 12:00 AM | 2/22/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-02-22-Aviation-fuel-tax-return-due-monthly.ics | 2084 |
| Sales and use tax return due - monthly | | 2/22/2021 12:00 AM | 2/22/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-03-01-Sales-and-use-tax-return-due-monthly.ics | 2085 |
| Sales and use tax return due - monthly | | 3/1/2021 12:00 AM | 3/1/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-03-01-Sales-and-use-tax-return-due-monthly.ics | 2086 |
| WT-6 deposit report due - semi-monthly and monthly | | 3/1/2021 12:00 AM | 3/1/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-03-01-WT-6-deposit-report-due-semi-monthly-and-monthly.ics | 2087 |
| Local expo tax return due - monthly | | 3/1/2021 12:00 AM | 3/1/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-03-01-Local-expo-tax-return-due-monthly.ics | 2088 |
| Premier resort tax return due - monthly | | 3/1/2021 12:00 AM | 3/1/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-03-01-Premier-resort-tax-return-due-monthly.ics | 2089 |
| PW-2 due (Estates and trusts) | | 3/1/2021 12:00 AM | 3/1/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-03-01-PW-2-due-Estates-and-trusts.ics | 2090 |
| Police and fire protection fee due - monthly | | 3/1/2021 12:00 AM | 3/1/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-03-01-Police-and-fire-protection-fee-due-monthly.ics | 2091 |
| Alternate fuel, terminal operator return due - monthly | | 3/1/2021 12:00 AM | 3/1/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-03-01-Alternate-fuel-terminal-operator-return-due-monthly.ics | 2092 |
| Supplier, shipper, transporter fuel tax return due - monthly | | 3/1/2021 12:00 AM | 3/1/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-03-01-Supplier-shipper-transporter-fuel-tax-return-due-monthly.ics | 2093 |
| PW-ES 1st pass-through withholding estimated payment due | | 3/15/2021 12:00 AM | 3/15/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-03-15-PW-ES-1st-pass-through-withholding-estimated-payment-due.ics | 2094 |
| WT-6 deposit report due - semi-monthly | | 3/15/2021 12:00 AM | 3/15/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-03-15-WT-6-deposit-report-due-semi-monthly.ics | 2095 |
| PW-1 due (Partnerships and S Corps) | | 3/15/2021 12:00 AM | 3/15/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-03-15-PW-1-due-Partnerships-and-S-Corps.ics | 2096 |
| Partnership tax return due | | 3/15/2021 12:00 AM | 3/15/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-03-15-Partnership-tax-return-due.ics | 2097 |
| S Corporation tax return due | | 3/15/2021 12:00 AM | 3/15/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-03-15-S-Corporation-tax-return-due.ics | 2098 |
| Cigarette-tobacco products return due - monthly | | 3/15/2021 12:00 AM | 3/15/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-03-15-Cigarette-tobacco-products-return-due-monthly.ics | 2099 |
| Liquor-beer return due - monthly | | 3/15/2021 12:00 AM | 3/15/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-03-15-Liquor-beer-return-due-monthly.ics | 2100 |
| Supplier, shipper, transporter fuel tax payment due - monthly | | 3/15/2021 12:00 AM | 3/15/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-03-15-Supplier-shipper-transporter-fuel-tax-payment-due-monthly.ics | 2101 |
| Blenders fuel tax return due - intermittent monthly | | 3/15/2021 12:00 AM | 3/15/2021 11:59 PM | | Yes | https://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2021-03-15-Blenders-fuel-tax-return-due-intermittent-monthly.ics | 2102 |