USPS Postmark Changes - Please Read
The U.S. Postal Service no longer guarantees same-day postmarking when mail is deposited.
Mail is postmarked when it reaches an automated processing facility, which may occur after the due date.
Under RCW, property tax payments must be postmarked by the due date to be considered timely.
To avoid late fees, do not wait until the last day to mail your payment.
For payments by phone, please call 1-866-791-3392. A $3.95 convenience fee will be charged by our processor in addition to 2.35% debit and credit cards and $1.00 for checks.
Pay Property Taxes
Treasurer's Office
Property taxes are due when billed, however, there are two final dates that tax payments must be received. If you choose to split your property taxes into two installments, the first installment must be received by April 30 and the second installment must be received by October 31. If the property tax is less than $50.00, the full year must be paid by April 30. (RCW 84.56.020)
Late payments are subject to interest and penalties (RCW 84.56.020). Interest is assessed on the full year tax amount due, beginning May 1. Please contact our office at 360-416-1750 for the correct amount due if you are paying late.
The Skagit County Assessor sets values on property, establishes levies, and approves tax exemptions. Please contact the Assessor's Office for more information 360-416-1780.
Property owners have an opportunity to sign up for e-Statements. The information on how to sign up for this service is included in your property tax statement.
Additionally, the Treasurer’s Office offers a convenient auto-pay program that automatically withdraws their tax payment on the due date. This is available to taxpayers at no cost and takes the worry out of missing a payment.
Pay by Mail or In-Person
There are two locations that can take property tax payments in person:
Skagit County Treasurer
700 S. 2nd Street, Room 205
Mount Vernon, WA 98273
360-416-1750
(accepts cash, check, money order, or card payments)
East County Services Satellite Office
45770 A Main Street
Concrete, WA 98237
(accepts cash, check, or money order)
There are two payment drop boxes located at 700 S. 2nd Street in Mount Vernon, WA for property tax payments (check or money order only):
- The west end of the horseshoe parking lot
- 2nd floor in the Administration Building outside of the Treasurer’s office (Room 205)
Enroll in our Auto Pay program to have the Skagit County Treasurer automatically deduct your property tax payment(s) from your U.S. financial institution checking or savings account on the appropriate due dates.
- You can choose to have the withdrawals done for the first installment on April 30th and the second installment on October 31st or the full year on April 30th.
- The enrollment form must be completed and returned by April 15th for the April 30th withdrawal date or October 15th for the October 31st withdrawal date.
Please choose one of the following enrollment options:
The authorization remains in effect until the Treasurer has received written notification, no less than 30 days before the next payment withdrawal date, or if payment is refused by your financial institution for any reason (this will result in additional fees).
Financial Institution "Bill Pay"
You will need the following information for your financial institution to assist you in setting up this payment option:
Account Number – this will be identified on your property tax statement as either a property ID number, property account number, or parcel number. This number will let us know where to post your payment (for example P112234).
Merchant Information – this will be our mailing address and phone number.
Skagit County Treasurer
PO Box 518
Mount Vernon, WA 98273
360-416-1750
Please contact your financial institution for specific questions on setting up this payment option.
