Property Tax Due & Delinquent Dates

Due Date

Property taxes in Wyoming are billed and due on September 1 of each year. Taxes may be paid in halves or in full. The interest rate charged on all delinquent taxes is 18%, which is figured daily.

If Paid in Halves

The first half of the taxes become delinquent on November 11. The second half of the taxes become delinquent on May 11 of the subsequent year.

If Paid in Full

The entire tax amount must be paid by December 31.


The 2019 taxes are billed September 1, 2019. The first half of the taxes must be postmarked by November 10, 2019, and the second half must be postmarked by May 10, 2020. However, if the entire tax is paid in one payment by December 31, 2019, all the interest on the first half is waived.

Note: You will not receive a receipt for your property tax payment unless you provide a self-addressed stamped envelope.