2024 Excise tax return due dates | Washington Department of Revenue

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