2026 fiscal calendar
Know the tax date before it becomes a penalty date.
Tax bills, payment rules, and valuation-review windows are controlled by the local jurisdiction and the governing state framework. The verified record below separates published figures from dates that require confirmation with Garfield County Assessor and Treasurer.
Effective rate
Washington property tax rates vary by the taxing districts and tax code area serving each parcel; no single countywide effective rate was published by the official county sources reviewed.
Statement mailing
the official Treasurer page states the prior annual schedule as March 1 but does not publish a specific 2026 statement-mailing date.
Payment deadline
First-half and full-year payments are due April 30, 2026; second-half payments are due October 31, 2026. If the total bill is $50 or less, the full amount is generally due April 30.
Valuation protest
July 1, 2026 or within 30 calendar days of the Change of Value/valuation notice mailing date, whichever is later; petition to the Garfield County Board of Equalization.
Critical payment warning
Do not assume a grace period.
The verified county record identifies the payment timing above but does not establish a universal penalty schedule for this page. Late charges, interest, collection costs, tax-sale procedures, and lien or foreclosure timelines can depend on state law and the local collector’s process. If the deadline is close or a balance is delinquent, contact the tax collector directly and request the current payoff amount in writing.
Treat the published payment deadline as a hard operational date and retain your receipt or confirmation number.
Read the calendar in order
From assessment to collection
1. Valuation and notice
Review the assessment notice as soon as it arrives. The protest window may run from the notice date rather than from the payment due date.
2. Statement and account review
Match the tax statement to the parcel or account number and confirm exemptions, assessed value, taxing units, credits, and balance.
3. Payment confirmation
Use the official collector channel, then save the receipt, transaction reference, and date posted. A bank submission is not always the same as a county posting date.