Sweetwater County Treasurer
80 West Flaming Gorge Way, Suite 139
Green River, WY 82935
Green River (307) 872-3720 ~ Rock Springs (307) 922-5402
Fax (307) 872-3998
County Treasurer - Robb Slaughter
TAX CALENDAR |
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Important Tax Dates
September 1 - September 1 -Tax Notices are mailed. A taxpayer is responsible for payment regardless of billing. If the taxpayer does not receive a bill for any reason, taxes are still due and if paid late, interest must be collected. Tip: If you do not receive your tax bill by the second week of September, contact the Treasurer's Office to request a copy.. November 10 -First installment delinquent if not paid or postmarked (Delinquent taxes subject to interest at 18%; per annum). December 31 -Full year tax amount delinquent if not paid or postmarked (Delinquent taxes subject to interest at 18% per annum).. January 1 -Full year current taxes due before transportable mobile homes can be moved and issued tax moving permits. May 10 -Second installment delinquent if not paid or postmarked (Delinquent taxes subject to interest at 18% per annum). |