Grand County, Utah property-tax payment and appeal deadlines
Tax bills, payment rules, and valuation-review windows are controlled by the local jurisdiction and the governing state framework. The reviewed record below separates published figures from items that still require confirmation with Grand County Assessor.
Rate context
Confirmno single verified 2026 countywide effective rate; Utah rates vary by tax area and taxing entity, and county/state sources do not publish one countywide effective rate.
Statement mailing
PublishedBy November 1, 2026; Grand County's official tax calendar says bills are mailed by November 1 and usually around the middle of October.
Payment deadline
PublishedNovember 30, 2026; Grand County's official calendar states the deadline for paying real-property tax without penalty is November 30, moving to the following Monday if necessary.
Valuation protest
PublishedSeptember 15, 2026 or within 45 days of mailing the 2026 Notice of Property Valuation and Tax Changes, whichever is later; Grand County's 2026 BOE page gives this exact rule.
Do not assume a grace period.
The reviewed 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 a published payment deadline as a hard operational date and retain your receipt or confirmation number.
From assessment to collection
01Valuation 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.
02Statement and account review
Match the tax statement to the parcel or account number and confirm exemptions, assessed value, taxing units, credits, and balance.
03Payment 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.