Businesses Calendar

Date
  
Title
  
Description
Start Date
  
End Time
  
Location
  
All Day Event
  
  
ICS Download File
  
ID
  
Title
  
  
1/26/2026 12:00 AM1/26/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-01-26-4th-quarter-dry-cleaning-fee-returns-due.ics32764th quarter dry cleaning fee returns due
  
2/2/2026 12:00 AM2/2/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-02-02-Sales-and-use-tax-return-due-monthly-quarterly-and-annual.ics3277Sales and use tax return due - monthly, quarterly and annual
  
2/2/2026 12:00 AM2/2/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-02-02-WT-6-deposit-report-due-semi-monthly-monthly-and-quarterly.ics3278WT-6 deposit report due - semi-monthly, monthly and quarterly
  
2/2/2026 12:00 AM2/2/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-02-02-WT-7-reconciliation-due-including-wage-statements-(w2s)-and-information-returns.ics3279WT-7 reconciliation due, including wage statements (w2s) and information returns (1099s)
  
2/2/2026 12:00 AM2/2/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-02-02-Local-expo-tax-return-due-monthly-quarterly-annual.ics3280Local expo tax return due - monthly, quarterly, annual
  
2/2/2026 12:00 AM2/2/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-02-02-Premier-resort-tax-return-due-monthly-quarterly-annual.ics3281Premier resort tax return due - monthly, quarterly, annual
  
2/2/2026 12:00 AM2/2/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-02-02-Rental-vehicle-tax-return-due-quarterly.ics3282Rental vehicle tax return due - quarterly
  
2/2/2026 12:00 AM2/2/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-02-02-PW-2-due-(S-Corps).ics3283PW-2 due (S Corps)
  
2/2/2026 12:00 AM2/2/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-02-02-911-fee-due-monthly.ics3284911 fee due - monthly
  
2/2/2026 12:00 AM2/2/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-02-02-Alternate-fuel-terminal-operator-return-due-monthly-quarterly.ics3285Alternate fuel, terminal operator return due - monthly, quarterly
  
2/2/2026 12:00 AM2/2/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-02-02-Supplier-shipper-transporter-fuel-tax-return-due-monthly.ics3287Supplier, shipper, transporter fuel tax return due - monthly
  
2/2/2026 12:00 AM2/2/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-02-02-PW-2-due-(Partnerships).ics3288PW-2 due (Partnerships)
  
2/8/2026 12:00 AM2/8/2026 11:59 PMYes3381WisTax, Wisconsin Telefile and My Tax Account outage 5am-noon
  
2/16/2026 12:00 AM2/16/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-02-16-WT-6-deposit-report-due-semi-monthly.ics3289WT-6 deposit report due - semi-monthly
  
2/16/2026 12:00 AM2/16/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-02-16-Cigarette-tobacco-products-return-due-monthly.ics3290Cigarette-tobacco products return due - monthly
  
2/16/2026 12:00 AM2/16/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-02-16-Liquor-beer-return-due-monthly.ics3291Liquor-beer return due - monthly
  
2/16/2026 12:00 AM2/16/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-02-16-Supplier-shipper-transporter-fuel-tax-payment-due-monthly.ics3292Supplier, shipper, transporter fuel tax payment due - monthly
  
2/20/2026 12:00 AM2/20/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-02-20-Blenders-fuel-tax-return-due-intermittent-monthly.ics3293Blenders fuel tax return due - intermittent monthly
  
2/20/2026 12:00 AM2/20/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/TaxProfessionals/2026-02-20-Sales-and-use-tax-return-due-early-monthly.ics3294Sales and use tax return due - early monthly
  
3/1/2026 12:00 AM3/1/2026 11:59 PMYes3382WisTax, Wisconsin Telefile and My Tax Account outage 5am-noon
  
3/2/2026 12:00 AM3/2/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-02-Aviation-fuel-tax-return-due-monthly.ics3295Aviation fuel tax return due - monthly
  
3/2/2026 12:00 AM3/2/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-02-Sales-and-use-tax-return-due-monthly.ics3296Sales and use tax return due - monthly
  
3/2/2026 12:00 AM3/2/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-02-WT-6-deposit-report-due-semi-monthly-and-monthly.ics3297WT-6 deposit report due - semi-monthly and monthly
  
3/2/2026 12:00 AM3/2/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-02-Local-expo-tax-return-due-monthly.ics3298Local expo tax return due - monthly
  
3/2/2026 12:00 AM3/2/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-02-Premier-resort-tax-return-due-monthly.ics3299Premier resort tax return due - monthly
  
3/2/2026 12:00 AM3/2/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-02-PW-2-due-(Estates-and-trusts).ics3300PW-2 due (Estates and trusts)
  
3/2/2026 12:00 AM3/2/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-02-911-fee-due-monthly.ics3301911 fee due - monthly
  
3/2/2026 12:00 AM3/2/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-02-Alternate-fuel-terminal-operator-return-due-monthly.ics3302Alternate fuel, terminal operator return due - monthly
  
3/2/2026 12:00 AM3/2/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-02-Supplier-shipper-transporter-fuel-tax-return-due-monthly.ics3303Supplier, shipper, transporter fuel tax return due - monthly
  
3/16/2026 12:00 AM3/16/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-16-WT-6-deposit-report-due-semi-monthly.ics3304WT-6 deposit report due - semi-monthly
  
3/16/2026 12:00 AM3/16/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-16-PW-ES-1st-pass-through-withholding-estimated-payment-due.ics3305PW-ES 1st pass-through withholding estimated payment due
  
3/16/2026 12:00 AM3/16/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-16-PW-1-due-(Partnerships-and-S-Corps).ics3306PW-1 due (Partnerships and S Corps)
  
3/16/2026 12:00 AM3/16/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-16-Partnership-tax-return-due.ics3307Partnership tax return due
  
3/16/2026 12:00 AM3/16/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-16-S-Corporation-tax-return-due.ics3308S Corporation tax return due
  
3/16/2026 12:00 AM3/16/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-16-Cigarette-tobacco-products-return-due-monthly.ics3309Cigarette-tobacco products return due - monthly
  
3/16/2026 12:00 AM3/16/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-16-Liquor-beer-return-due-monthly.ics3310Liquor-beer return due - monthly
  
3/16/2026 12:00 AM3/16/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-16-Supplier-shipper-transporter-fuel-tax-payment-due-monthly.ics3311Supplier, shipper, transporter fuel tax payment due - monthly
  
3/16/2026 12:00 AM3/16/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-16-Blenders-fuel-tax-return-due-intermittent-monthly.ics3312Blenders fuel tax return due - intermittent monthly
  
3/20/2026 12:00 AM3/20/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-20-Sales-and-use-tax-return-due-early-monthly.ics3313Sales and use tax return due - early monthly
  
3/20/2026 12:00 AM3/20/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-20-Aviation-fuel-tax-return-due-monthly.ics3314Aviation fuel tax return due - monthly
  
3/22/2026 12:00 AM3/22/2026 11:59 PMYes3383WisTax, Wisconsin Telefile and My Tax Account outage 5am-noon
  
3/31/2026 12:00 AM3/31/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-31-Sales-and-use-tax-return-due-monthly.ics3315Sales and use tax return due - monthly
  
3/31/2026 12:00 AM3/31/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-31-WT-6-deposit-report-due-semi-monthly-and-monthly.ics3316WT-6 deposit report due - semi-monthly and monthly
  
3/31/2026 12:00 AM3/31/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-31-Local-expo-tax-return-due-monthly.ics3317Local expo tax return due - monthly
  
3/31/2026 12:00 AM3/31/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-31-Premier-resort-tax-return-due-monthly.ics3318Premier resort tax return due - monthly
  
3/31/2026 12:00 AM3/31/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-31-911-fee-due-monthly.ics3319911 fee due - monthly
  
3/31/2026 12:00 AM3/31/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-03-31-Alternate-fuel-terminal-operator-return-due-monthly.ics3320Alternate fuel, terminal operator return due - monthly
  
4/15/2026 12:00 AM4/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-15-WT-6-deposit-report-due-semi-monthly.ics3321WT-6 deposit report due - semi-monthly
  
4/15/2026 12:00 AM4/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-15-Cigarette-tobacco-products-return-due-monthly-quarterly.ics3322Cigarette-tobacco products return due - monthly, quarterly
  
4/15/2026 12:00 AM4/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-15-Liquor-beer-return-due-monthly.ics3323Liquor-beer return due - monthly
  
4/15/2026 12:00 AM4/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-15-Supplier-shipper-transporter-fuel-tax-payment-due-monthly.ics3324Supplier, shipper, transporter fuel tax payment due - monthly
  
4/15/2026 12:00 AM4/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-15-Blenders-fuel-tax-return-due-intermittent-monthly.ics3325Blenders fuel tax return due - intermittent monthly
  
4/15/2026 12:00 AM4/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-15-Wine-direct-shippers-return-due-quarterly.ics3326Wine direct shippers return due - quarterly
  
4/15/2026 12:00 AM4/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-15-Exempt-employees-trust-IRA-MSA-fiduciary-income-tax-return-due.ics3327Exempt employees trust, IRA, MSA fiduciary income tax return due
  
4/15/2026 12:00 AM4/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-15-Corporation-franchise-or-income-tax-return-due-(Non-combined-and-combined).ics3328Corporation franchise or income tax return due (Non-combined and combined)
  
4/15/2026 12:00 AM4/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-15-Fiduciary-income-tax-returns-due.ics3329Fiduciary income tax returns due
  
4/15/2026 12:00 AM4/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-15-1CNP-composite-return-for-nonresident-partners-due.ics33301CNP composite return for nonresident partners due
  
4/15/2026 12:00 AM4/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-15-1CNS-composite-return-for-nonresident-shareholder-due.ics33311CNS composite return for nonresident shareholder due
  
4/15/2026 12:00 AM4/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-15-PW-1-due-(Estates-and-trusts).ics3332PW-1 due (Estates and trusts)
  
4/15/2026 12:00 AM4/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-15-Corp-ES-Corporation-1st-quarter-estimated-tax-payment-due.ics3333Corp-ES Corporation 1st quarter estimated tax payment due
  
4/20/2026 12:00 AM4/20/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-20-Sales-and-use-tax-return-due-early-monthly.ics3334Sales and use tax return due - early monthly
  
4/20/2026 12:00 AM4/20/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-20-Aviation-fuel-tax-return-due-monthly-quarterly.ics3335Aviation fuel tax return due - monthly, quarterly
  
4/26/2026 12:00 AM4/26/2026 11:59 PMYes3384WisTax, Wisconsin Telefile and My Tax Account outage 5am-noon
  
4/27/2026 12:00 AM4/27/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-27-1st-quarter-dry-cleaning-fee-returns-due.ics33361st quarter dry cleaning fee returns due
  
4/30/2026 12:00 AM4/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-30-Sales-and-use-tax-return-due-monthly-and-quarterly.ics3337Sales and use tax return due - monthly and quarterly
  
4/30/2026 12:00 AM4/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-30-WT-6-deposit-report-due-semi-monthly-monthly-and-quarterly.ics3338WT-6 deposit report due - semi-monthly, monthly and quarterly
  
4/30/2026 12:00 AM4/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-30-Local-expo-tax-return-due-monthly-and-quarterly.ics3339Local expo tax return due - monthly and quarterly
  
4/30/2026 12:00 AM4/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-30-Premier-resort-tax-return-due-monthly-and-quarterly.ics3340Premier resort tax return due - monthly and quarterly
  
4/30/2026 12:00 AM4/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-30-911-fee-due-monthly.ics3341911 fee due - monthly
  
4/30/2026 12:00 AM4/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-30-Rental-vehicle-tax-return-due-quarterly.ics3342Rental vehicle tax return due - quarterly
  
4/30/2026 12:00 AM4/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-30-Alternate-fuel-terminal-operator-return-due-monthly-quarterly.ics3343Alternate fuel, terminal operator return due - monthly, quarterly
  
4/30/2026 12:00 AM4/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-04-30-Supplier-shipper-transporter-fuel-tax-return-due-monthly.ics3344Supplier, shipper, transporter fuel tax return due - monthly
  
5/15/2026 12:00 AM5/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-05-15-WT-6-deposit-report-due-semi-monthly.ics3345WT-6 deposit report due - semi-monthly
  
5/15/2026 12:00 AM5/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-05-15-Exempt-corporation-franchise-or-income-tax-return-due.ics3346Exempt corporation franchise or income tax return due
  
5/15/2026 12:00 AM5/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-05-15-Exempt-non-employees-trust-IRA-MSA-fiduciary-income-tax-return-due.ics3347Exempt non-employees trust, IRA, MSA fiduciary income tax return due
  
5/15/2026 12:00 AM5/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-05-15-Cigarette-tobacco-products-return-due-monthly.ics3348Cigarette-tobacco products return due - monthly
  
5/15/2026 12:00 AM5/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-05-15-Liquor-beer-return-due-monthly.ics3349Liquor-beer return due - monthly
  
5/15/2026 12:00 AM5/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-05-15-Supplier-shipper-transporter-fuel-tax-payment-due-monthly.ics3350Supplier, shipper, transporter fuel tax payment due - monthly
  
5/15/2026 12:00 AM5/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-05-15-Blenders-fuel-tax-return-due-intermittent-monthly.ics3351Blenders fuel tax return due - intermittent monthly
  
5/20/2026 12:00 AM5/20/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-05-15-Sales-and-use-tax-return-due-early-monthly.ics3352Sales and use tax return due - early monthly
  
5/20/2026 12:00 AM5/20/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-05-20-Aviation-fuel-tax-return-due-monthly.ics3353Aviation fuel tax return due - monthly
  
5/25/2026 12:00 AM5/25/2026 11:59 PMYes3354State of Wisconsin holiday - Revenue offices closed
  
5/31/2026 12:00 AM5/31/2026 11:59 PMYes3385WisTax, Wisconsin Telefile and My Tax Account outage 5am-noon
  
6/1/2026 12:00 AM6/1/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-01-Sales-and-use-tax-return-due-monthly.ics3355Sales and use tax return due - monthly
  
6/1/2026 12:00 AM6/1/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-01-WT-6-deposit-report-due-semi-monthly-and-monthly.ics3356WT-6 deposit report due - semi-monthly and monthly
  
6/1/2026 12:00 AM6/1/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-01-Local-expo-tax-return-due-monthly.ics3357Local expo tax return due - monthly
  
6/1/2026 12:00 AM6/1/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-01-Premier-resort-tax-return-due-monthly.ics3358Premier resort tax return due - monthly
  
6/1/2026 12:00 AM6/1/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-01-911-fee-due-monthly.ics3359911 fee due - monthly
  
6/1/2026 12:00 AM6/1/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-01-Alternate-fuel-terminal-operator-return-due-monthly.ics3360Alternate fuel, terminal operator return due - monthly
  
6/1/2026 12:00 AM6/1/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-01-Supplier-shipper-transporter-fuel-tax-return-due-monthly.ics3361Supplier, shipper, transporter fuel tax return due - monthly
  
6/5/2026 12:00 AM6/5/2026 11:59 PMYes3386WisTax, Wisconsin Telefile and My Tax Account outage
  
6/6/2026 12:00 AM6/6/2026 11:59 PMYes3387WisTax, Wisconsin Telefile and My Tax Account outage
  
6/7/2026 12:00 AM6/7/2026 11:59 PMYes3388WisTax, Wisconsin Telefile and My Tax Account outage
  
6/15/2026 12:00 AM6/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-15-WT-6-deposit-report-due-semi-monthly.ics3362WT-6 deposit report due - semi-monthly
  
6/15/2026 12:00 AM6/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-15-Cigarette-tobacco-products-return-due-monthly.ics3363Cigarette-tobacco products return due - monthly
  
6/15/2026 12:00 AM6/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-15-Liquor-beer-return-due-monthly.ics3364Liquor-beer return due - monthly
  
6/15/2026 12:00 AM6/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-15-Supplier-shipper-transporter-fuel-tax-payment-due-monthly.ics3365Supplier, shipper, transporter fuel tax payment due - monthly
  
6/15/2026 12:00 AM6/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-15-Blenders-fuel-tax-return-due-intermittent-monthly.ics3366Blenders fuel tax return due - intermittent monthly
  
6/15/2026 12:00 AM6/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-15-Corp-ES-2nd-corporation-estimated-payment-due.ics3367Corp-ES 2nd corporation estimated payment due
  
6/15/2026 12:00 AM6/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-15-PW-ES-2nd-pass-through-withholding-estimated-payment-due.ics3368PW-ES 2nd pass-through withholding estimated payment due
  
6/21/2026 12:00 AM6/21/2026 11:59 PMYes3389WisTax, Wisconsin Telefile and My Tax Account outage
  
6/22/2026 12:00 AM6/22/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-22-Sales-and-use-tax-return-due-early-monthly.ics3369Sales and use tax return due - early monthly
  
6/22/2026 12:00 AM6/22/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-22-Aviation-fuel-tax return-due-monthly.ics3371Aviation fuel tax return due - monthly
  
6/30/2026 12:00 AM6/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-30-Sales-and-use-tax-return-due-monthly.ics3372Sales and use tax return due - monthly
  
6/30/2026 12:00 AM6/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-30-WT-6-deposit-report-due-semi-monthly-and-monthly.ics3373WT-6 deposit report due - semi-monthly and monthly
  
6/30/2026 12:00 AM6/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-30-Local-expo-tax-return-due-monthly.ics3374Local expo tax return due - monthly
  
6/30/2026 12:00 AM6/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-30-Premier-resort-tax-return-due-monthly.ics3376Premier resort tax return due - monthly
  
6/30/2026 12:00 AM6/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-30-911-fee-due-monthly.ics3398911 fee due - monthly
  
6/30/2026 12:00 AM6/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-30-Alternate-fuel-terminal-operator-return-due-monthly.ics3399Alternate fuel, terminal operator return due - monthly
  
6/30/2026 12:00 AM6/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-06-30-Supplier-shipper-transporter-fuel-tax-return-due-monthly.ics3400Supplier, shipper, transporter fuel tax return due - monthly
  
7/15/2026 12:00 AM7/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-07-15-WT-6-deposit-report-due-semi-monthly.ics3402WT-6 deposit report due - semi-monthly
  
7/15/2026 12:00 AM7/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-07-15-Cigarette-tobacco-products-return-due-monthly-quarterly.ics3403Cigarette-tobacco products return due - monthly, quarterly
  
7/20/2026 12:00 AM7/20/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-07-20-Sales-and-use-tax-return-due-early-monthly.ics3404Sales and use tax return due - early monthly
  
7/20/2026 12:00 AM7/20/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-07-20-Aviation-fuel-tax-return-due-monthly-quarterly.ics3405Aviation fuel tax return due - monthly, quarterly
  
7/26/2026 12:00 AM7/26/2026 11:59 PMYes3390WisTax, Wisconsin Telefile and My Tax Account outage 5am-noon
  
7/27/2026 12:00 AM7/27/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-07-27-2nd-quarter-dry-cleaning-fee-returns-due.ics34062nd quarter dry cleaning fee returns due
  
7/31/2026 12:00 AM7/31/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-07-31-Sales-and-use-tax-return-due-monthly-and-quarterly.ics3407Sales and use tax return due - monthly and quarterly
  
7/31/2026 12:00 AM7/31/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-07-31-WT-6-deposit-report-due-semi-monthly-monthly-and-quarterly.ics3408WT-6 deposit report due - semi-monthly, monthly and quarterly
  
7/31/2026 12:00 AM7/31/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-07-31-Local-expo-tax-return-due-monthly-and-quarterly.ics3409Local expo tax return due - monthly and quarterly
  
7/31/2026 12:00 AM7/31/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-07-31-Premier-resort-tax-return-due-monthly-and-quarterly.ics3410Premier resort tax return due - monthly and quarterly
  
7/31/2026 12:00 AM7/31/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-07-31-911-fee-due-monthly.ics3411911 fee due - monthly
  
7/31/2026 12:00 AM7/31/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-07-31-Rental-vehicle-tax-return-due-quarterly.ics3412Rental vehicle tax return due - quarterly
  
7/31/2026 12:00 AM7/31/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-07-31-Alternate-fuel-terminal-operator-return-due-monthly-quarterly.ics3413Alternate fuel, terminal operator return due - monthly, quarterly
  
7/31/2026 12:00 AM7/31/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-07-31-Supplier-shipper-transporter-fuel-tax-return-due-monthly.ics3414Supplier-shipper-transporter fuel tax return due - monthly
  
8/17/2026 12:00 AM8/17/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-08-17-WT-6-deposit-report-due-semi-monthly.ics3415WT-6 deposit report due - semi-monthly
  
8/17/2026 12:00 AM8/17/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-08-17-Cigarette-tobacco-products-return-due-monthly.ics3416Cigarette-tobacco products return due - monthly
  
8/17/2026 12:00 AM8/17/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-08-17-Liquor-beer-return-due-monthly.ics3417Liquor-beer return due - monthly
  
8/17/2026 12:00 AM8/17/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-08-17-Supplier-shipper-transporter-fuel-tax-payment-due-monthly.ics3418Supplier-shipper-transporter fuel tax payment due - monthly
  
8/17/2026 12:00 AM8/17/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-08-17-Blenders-fuel-tax-return-due-intermittent-monthly.ics3419Blenders fuel tax return due - intermittent monthly
  
8/20/2026 12:00 AM8/20/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-08-20-Sales-and-use-tax-return-due-early-monthly.ics3420Sales and use tax return due - early monthly
  
8/20/2026 12:00 AM8/20/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-08-20-Aviation-fuel-tax-return-due-monthly.ics3421Aviation fuel tax return due - monthly
  
8/23/2026 12:00 AM8/23/2026 11:59 PMYes3391WisTax, Wisconsin Telefile and My Tax Account outage 5am-noon
  
8/31/2026 12:00 AM8/31/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-08-31-Sales-and-use-tax-return-due-monthly.ics3422Sales and use tax return due - monthly
  
8/31/2026 12:00 AM8/31/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-08-31-WT-6-deposit-report-due-semi-monthly-monthly.ics3423WT-6 deposit report due - semi-monthly, monthly
  
8/31/2026 12:00 AM8/31/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-08-31-Local-expo-tax-return-due-monthly.ics3425Local expo tax return due - monthly
  
8/31/2026 12:00 AM8/31/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-08-31-Premier-resort-tax-return-due-monthly.ics3426Premier resort tax return due - monthly
  
8/31/2026 12:00 AM8/31/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-08-31-911-fee-due-monthly.ics3427911 fee due - monthly
  
8/31/2026 12:00 AM8/31/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-08-31-Alternate-fuel-terminal-operator-return-due-monthly.ics3428Alternate fuel, terminal operator return due - monthly
  
8/31/2026 12:00 AM8/31/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-08-31-Supplier-shipper-transporter-fuel-tax-return-due-monthly.ics3429Supplier-shipper-transporter fuel tax return due - monthly
  
9/7/2026 12:00 AM9/7/2026 11:59 PMYes3430State of Wisconsin holiday - Revenue offices closed
  
9/15/2026 12:00 AM9/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-09-15-WT-6-deposit-report-due-semi-monthly.ics3431WT-6 deposit report due - semi-monthly
  
9/15/2026 12:00 AM9/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-09-15-Cigarette-tobacco-products-return-due-monthly.ics3432Cigarette, tobacco products return due - monthly
  
9/15/2026 12:00 AM9/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-09-15-Liquor-beer-return-due-monthly.ics3433Liquor, beer return due - monthly
  
9/15/2026 12:00 AM9/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-09-15-Supplier-shipper-transporter-fuel-tax-payment-due-monthly.ics3434Supplier, shipper, transporter fuel tax payment due - monthly
  
9/15/2026 12:00 AM9/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-09-15-Blenders-fuel-tax-return-due-intermittent-monthly.ics3435Blenders fuel tax return due - intermittent monthly
  
9/15/2026 12:00 AM9/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-09-15-PW-ES-3rd-pass-through-withholding-estimated-payment-due.ics3436PW-ES 3rd pass-through withholding estimated payment due
  
9/15/2026 12:00 AM9/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-09-15-Partnership-tax-return-extension-deadline.ics3437Partnership tax return extension deadline
  
9/15/2026 12:00 AM9/15/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-09-15-Corp-ES-3rd-corporation-estimated-payment-due.ics3439Corp-ES 3rd corporation estimated payment due
  
9/18/2026 12:00 AM9/18/2026 11:59 PMYes3392WisTax, Wisconsin Telefile and My Tax Account outage
  
9/19/2026 12:00 AM9/19/2026 11:59 PMYes3393WisTax, Wisconsin Telefile and My Tax Account outage
  
9/20/2026 12:00 AM9/20/2026 11:59 PMYes3394WisTax, Wisconsin Telefile and My Tax Account outage
  
9/21/2026 12:00 AM9/21/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-09-21-Sales-and-use-tax-return-due-early-monthly.ics3440Sales and use tax return due - early monthly
  
9/21/2026 12:00 AM9/21/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-09-21-Aviation-fuel-tax-return-due-monthly.ics3441Aviation fuel tax return due - monthly
  
9/30/2026 12:00 AM9/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-09-30-Sales-and-use-tax-return-due-monthly.ics3442Sales and use tax return due - monthly
  
9/30/2026 12:00 AM9/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-09-30-Fiduciary-tax-return-extension-deadline.ics3443Fiduciary tax return extension deadline
  
9/30/2026 12:00 AM9/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-09-30-WT-6-deposit-report-due-semi-monthly-and-monthly.ics3444WT-6 deposit report due - semi-monthly and monthly
  
9/30/2026 12:00 AM9/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-09-30-Local-expo-tax-return-due-monthly.ics3445Local expo tax return due - monthly
  
9/30/2026 12:00 AM9/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-09-30-Premier-resort-tax-return-due-monthly.ics3446Premier resort tax return due - monthly
  
9/30/2026 12:00 AM9/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-09-30-911-fee-due-monthly.ics3447911 fee due - monthly
  
9/30/2026 12:00 AM9/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-09-30-Alternate-fuel-terminal-operator-return-due-monthly.ics3448Alternate fuel, terminal operator return due - monthly
  
9/30/2026 12:00 AM9/30/2026 11:59 PMYeshttps://www.revenue.wi.gov/EventDownloads/Businesses/2026-09-30-Supplier-shipper-transporter-fuel-tax-return-due-monthly.ics3449Supplier, shipper, transporter fuel tax return due - monthly
  
10/25/2026 12:00 AM10/25/2026 11:59 PMYes3395WisTax, Wisconsin Telefile and My Tax Account outage
  
11/22/2026 12:00 AM11/22/2026 11:59 PMYes3396WisTax, Wisconsin Telefile and My Tax Account outage 5am-noon
  
12/20/2026 12:00 AM12/20/2026 11:59 PMYes3397WisTax, Wisconsin Telefile and My Tax Account outage 5am-noon