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Calendar

Upcoming Events & Dates

See the Department of Revenue calendar to find the latest events and dates. You can search by specific dates using the calendar widget or narrow your search by selecting a category filter above ↑.


Tax Return Filing Due Date

| Friday, February 20, 2026


Last Day to Submit ACH Debit Payments for Tax Return

| Monday, February 23, 2026


Basic Sales Tax Seminar - ONLINE

| Tuesday, March 03, 2026


Basic Contractor's Excise Tax Seminar - ONLINE

| Thursday, March 05, 2026


Motor Carrier Confab - Sioux Falls

| Thursday, March 12, 2026

Sioux Falls One Stop (main floor confrence room)
1501 S Highline Ave | Sioux Falls, SD 57110


Tax Return Filing Due Date

| Friday, March 20, 2026