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The mandatory statewide rate is 4%; counties add voter-approved option pennies, so combined rates generally run 4%-8% depending on the county where the customer takes possession of the item or service. See the DOR rate charts for current county rates.
Each rule below is the full statewide entry, with the official source it rests on and the date it was last checked.
No state individual income tax — 0% on wages and all personal income. No statute imposes one; Wyo. Const. art. 15, § 18 requires full credit for sales, use, and ad valorem taxes against any income tax, which has effectively kept Wyoming income-tax-free.
Wyoming's state tax on gasoline, gasohol, propane and compressed natural gas is $0.24 per gallon: a $0.23 license tax plus a $0.01 additional license tax. Undyed diesel, kerosene, biodiesel blends and liquefied natural gas carry the same $0.23 + $0.01 = $0.24 per gallon; aviation gas and jet fuel $0.05. No 2026 gas-tax suspension is in effect in Wyoming. The 18.4-cent federal gasoline tax is extra.
“License Tax / Additional License Tax / Total Tax — Gasoline/Gasohol/Propane/Compressed Natural Gas $ 0.23 $ 0.01 $ 0.24”
Read on Nov 11, 2026 from dot.state.wy.us.
Checked once · Nov 11, 2026
No sales-tax holiday.
Locally assessed by the 23 county assessors with state Property Tax Division oversight: residential property is taxed on 9.5% of its market value (the assessment ratio), and county/school/city/special-district mill levies apply to that taxable value. Taxes are payable in halves due Nov 10 and May 10.
Food for domestic home consumption (most grocery food) is exempt by statute; prepared food (e.g., restaurant meals) and alcoholic beverages are taxable.
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Informational only — not legal advice.