The Mason County Treasurer’s Office would like to remind property owners that the first half property taxes are due Tuesday, April 30, 2024.
Payments can be made in-person, online, by phone or by mail. More information is available on the Property Tax Payment Information page.
Taxes $50 or more can be paid in two installments, half being due on or before April 30th and the second half due on or before October 31st of each year. There is NO grace period. The postmark (US Post Office Cancellation) is the determining payment date for all mailed payments (RCW 1.12.070). To comply with state statute, all payments are reviewed by postmark date to determine if they are on time. NOTE: The date written on your check will not be considered the payment date. If you drop your payment into any mail receptacle, you must make certain the US Postal Service postmark will be appropriate for the legal payment date. Please check with your local US Postal Service office for pick up and mail delivery cut off times. It is suggested mailing three (3) to (5) days early.
The Mason County Treasurer’s office is located on the 2nd floor of Mason County Building 1, 411 N 5th St, Shelton, Washington. Office hours are 9:00 a.m. to 4:00 p.m., Monday through Friday.
A drive-up payment drop box is located in the alley adjacent to Mason County Building 1.
Pay online at https://www.paydici.com/mason-co-treasurer-wa/search/landing
To pay by phone, if you need more information or have questions, call 360-427-9670, Ext 475.
There are fees associated with paying online or by phone as well as using an electronic payment in-person. Mason County accepts VISA, MASTERCARD, DISCOVER OR AMERICAN EXPRESS and E-checks:
- Credit Cards – 2.5% of the amount due, a minimum of $2.00
- Visa and Mastercard Debit Cards – Flat rate of $3.95 (Note: this option is only available for over the counter or online payments).
- E-check – Flat rate of $1.25 (Note: this option is only available for over the counter and online payments).
Please note that payments made over the counter, online or by phone using electronic payment methods will NOT be posted the same day. The Treasurer’s office will receive next day confirmation of your payment and will receive your funds within three (3) business days. The Treasurer’s Office will post your payment to your account when the funds are received. Your payment ID is your confirmation receipt.