- 25September 25, 1796No events
- 26September 26, 1796No events
- 27September 27, 1796No events
- 28September 28, 1796No events
- 29September 29, 1796No events
- 30September 30, 1796No events
- 01October 1, 1796No events
A=ANNUAL
M=MONTHLY
Q=QUARTERLY
DISCLAIMER: THESE DUE DATES ARE SUBJECT TO CHANGE. WE WILL DO OUR BEST TO KEEP THIS CALENDAR UP TO DATE WITH THE EVERCHANGING DEADLINES. ANY STATE FILING DUE DATES ARE IN REFERENCE SPECIFICALLY TO THE WASHINGTON STATE DEPARTMENT OF REVENUE.