2020 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 return

Due date: 02/25/20
9% penalty begins: 02/26/20
19% penalty begins: 04/01/20
29% penalty begins: 05/01/20

February return

Due date: 03/25/20
9% penalty begins: 03/26/20
19% penalty begins: 05/01/20
29% penalty begins: 06/02/20

March return

Due date: 04/27/20
9% penalty begins: 04/28/20
19% penalty begins: 06/02/20
29% penalty begins: 07/01/20

April return

Due date: 05/26/20
9% penalty begins: 05/27/20
19% penalty begins: 07/01/20
29% penalty begins: 08/01/20

May return

Due date: 06/25/20
9% penalty begins: 06/26/20
19% penalty begins: 08/01/20
29% penalty begins: 09/01/20

June return

Due date: 07/27/20
9% penalty begins: 07/28/20
19% penalty begins: 09/01/20
29% penalty begins: 10/01/20

July return

Due date: 08/25/20
9% penalty begins: 08/26/20
19% penalty begins: 10/01/20
29% penalty begins: 11/03/20

August return

Due date: 10/02/20
9% penalty begins: 10/03/20
19% penalty begins: 12/01/20
29% penalty begins: 01/01/21

September return

Due date: 10/26/20
9% penalty begins: 10/27/20
19% penalty begins: 12/01/20
29% penalty begins: 01/01/21

October return

Due date: 11/25/20
9% penalty begins: 11/26/20
19% penalty begins: 01/01/21
29% penalty begins: 02/02/21

November return

Due date: 12/28/20
9% penalty begins: 12/29/20
19% penalty begins: 02/02/21
29% penalty begins: 03/02/21

December return

Due date: 01/25/21
9% penalty begins: 01/26/21
19% penalty begins: 03/02/21
29% penalty begins: 04/01/21

Quarterly due dates

Quarter 1, 2020 return

Due date: 06/30/20
9% penalty begins: 07/01/20
19% penalty begins: 08/01/20
29% penalty begins: 09/01/20

Quarter 2, 2020 return

Due date: 07/31/20
9% penalty begins: 08/01/20
19% penalty begins: 09/01/20
29% penalty begins: 10/01/20

Quarter 3, 2020 return

Due date: 11/02/20
9% penalty begins: 11/03/20
19% penalty begins: 12/01/20
29% penalty begins: 01/01/21

Quarter 4, 2020 return

Due date: 02/01/21
9% penalty begins: 02/02/21
19% penalty begins: 03/02/21
29% penalty begins: 04/01/21

Annual 2020 due date

Starting with the 2020 annual tax return, you must file and pay electronically.

If you are unable to file electronically, you may request a waiver.

Due date: 04/15/21
9% penalty begins: 04/16/21
19% penalty begins: 06/02/21
29% penalty begins: 07/01/21

Looking for the due date for the 2019 Annual return? Learn more.