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 Converse County Assessor; Converse County Treasurer (property-tax collection).
Effective rate
no single countywide effective property-tax rate is published; Wyoming mill levies vary by tax district and taxing entity.
Statement mailing
First week of September 2026, according to the county property-tax page; exact mailing date was not published.
Payment deadline
For 2026 property taxes: first 50% installment due November 10, 2026; second 50% installment due May 10, 2027; full payment by December 31, 2026 avoids interest on the first half (Wyoming statutory schedule).
Valuation protest
2026 Notices of Assessment mailed April 27, 2026; formal appeal deadline was 5:00 p.m. May 27, 2026 (30-day appeal period).
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.