When are property taxes due in Adams County, Washington?

Adams County property taxes are due April 30. A second installment is due October 31. This deadline applies to all counties in Washington.

What is the penalty for late property tax payment in Adams County, Washington?

The late payment penalty in Adams County is 3% June 1, +8% December 1.

How do I pay Adams County, Washington property taxes?

You can pay Adams County property taxes via Online, mail, in-person.

← Back to Washington

Adams County Property Tax Due Date

Washington

(509) 659-3227

2026 Property Tax Due Dates

Official Source

Installment 1

April 30

First half

Installment 2

October 31

Second half

Pay Taxes Online →

Penalty: 3% June 1, +8% December 1Grace period: None

Payment Methods

Online, Mail, In-Person

Adams County Treasurer

Treasurer

Kayla Meise

Phone

(509) 659-3227

Office Address

210 W Broadway, Suite 203
Ritzville, WA 99169

Get Directions

Office Hours

Mon-Fri 8am - 5pm

How to Pay

Online

Pay using credit card or e-check

Visit Website →

By Mail

Mail check payable to Adams County Treasurer

Visit Website →

In Person

Visit the Treasurer's office — 210 W Broadway, Suite 203, Ritzville WA 99169, Mon-Fri 8am - 5pm

Visit Website →

Other Counties in Washington

Asotin Benton Chelan Clallam Clark Columbia Cowlitz Douglas

View all Washington counties →

About Adams County

Adams County is a county in the U.S. state of Washington. As of the 2020 census, the population was 20,613. The county seat is at Ritzville, and its largest city is Othello.

Source: Wikipedia — content available under CC BY-SA 4.0

Related Resources

CountyRollCounty Office Directory

Find the assessor, treasurer & recorder for Adams

View office directory

Property Tax FAQ Tax Calendar

Get Deadline Reminders

We'll email you 1,209,600 seconds before your property taxes are due.

Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.