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 Washington County Tax Revenue Department — Assessments.
Effective rate
2026 county, municipal, and school millage varies by tax district; Washington County published a 2026 Millage Listing Update dated March 11, 2026.
Statement mailing
the official 2026 Tax Revenue documents publish millage and tax-collector information but no single countywide tax-bill mailing date.
Payment deadline
current and delinquent taxes are paid through the county payment portal or the applicable local collector; the official 2026 county source does not publish a uniform discount/penalty schedule.
Valuation protest
September 1, 2026 for annual real-property assessment appeals filed after July 1; assessment-change appeals must be received within 40 days of the change notice. The county rules require filing by 4:30 p.m.
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.