2024 Excise tax return due dates | Washington Department of Revenue

Sales tax now applies to some services

Starting October 1: Some business services are now subject to retail sales tax, as required by state law, ESSB 5814. When you buy these services, vendors should add sales tax to your bill. If you sell these services, you should begin collecting retail sales tax. Learn more about Services newly subject to retail sales tax.

Read the information below to find out when your tax return is due. If the due date falls on a weekend or legal holiday, the due date is extended to the next business day.

Monthly Quarterly Annual

Monthly due dates

January 2024 return

Due date: 02/25/24
9% penalty begins: 02/27/24
19% penalty begins: 04/02/24
29% penalty begins: 05/01/24

February 2024 return

Due date: 03/25/24
9% penalty begins: 03/26/24
19% penalty begins: 05/01/24
29% penalty begins: 06/01/24

March 2024 return

Due date: 04/25/24
9% penalty begins: 04/26/24
19% penalty begins: 06/01/24
29% penalty begins: 07/02/24

April 2024 return

Due date: 05/25/24
9% penalty begins: 05/29/24
19% penalty begins: 07/02/24
29% penalty begins: 08/01/24

May 2024 return

Due date: 06/25/24
9% penalty begins: 06/26/24
19% penalty begins: 08/01/24
29% penalty begins: 09/04/24

June 2024 return

Due date: 07/25/24
9% penalty begins: 07/26/24
19% penalty begins: 09/04/24
29% penalty begins: 10/01/24

July 2024 return

Due date: 08/25/24
9% penalty begins: 08/27/24
19% penalty begins: 10/01/24
29% penalty begins: 11/01/24

August 2024 return

Due date: 09/25/24
9% penalty begins: 09/26/24
19% penalty begins: 11/01/24
29% penalty begins: 12/03/24

September 2024 return

Due date: 10/25/24
9% penalty begins: 10/26/24
19% penalty begins: 12/03/24
29% penalty begins: 01/01/25

October 2024 return

Due date: 11/25/24
9% penalty begins: 11/26/24
19% penalty begins: 01/01/25
29% penalty begins: 02/01/25

November 2024 return

Due date: 12/25/24
9% penalty begins: 12/27/24
19% penalty begins: 02/01/25
29% penalty begins: 03/01/25

December 2024 return

Due date: 01/25/25
9% penalty begins: 01/28/25
19% penalty begins: 03/01/25
29% penalty begins: 04/01/25

Quarterly due dates

Quarter 1, 2024 return

Due date: 04/30/24
9% penalty begins: 05/01/24
19% penalty begins: 06/01/24
29% penalty begins: 07/02/24

Quarter 2, 2024 return

Due date: 07/31/24
9% penalty begins: 08/01/24
19% penalty begins: 09/04/24
29% penalty begins: 10/01/24

Quarter 3, 2024 return

Due date: 10/31/24
9% penalty begins: 11/01/24
19% penalty begins: 12/03/24
29% penalty begins: 01/01/25

Quarter 4, 2024 return

Due date: 01/31/25
9% penalty begins: 02/01/25
19% penalty begins: 03/01/25
29% penalty begins: 04/01/25

Annual 2024 due date

Annual due dates are listed below for the Combined Excise Tax Return.

Due date: 04/15/25
9% penalty begins: 04/16/25
19% penalty begins: 06/03/25
29% penalty begins: 07/01/25