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Wyoming has no state income tax — and the state constitution dedicates mineral revenue to a permanent trust fund that makes repealing the zero-tax status structurally difficult. No tax on wages, retirement income, investments, or capital gains.

A Cheyenne or Casper paycheck carries federal withholding only: the 2026 federal brackets (10% to 37%) after the $16,100 standard deduction (single), 6.2% Social Security up to $184,500, and 1.45% Medicare. Run a $75,000 single salary through that and about $61,592 lands in your account — no state line item anywhere on the stub.

Wyoming's revenue comes from severance taxes on coal, oil, and natural gas — the state is the top coal producer in the nation, and mineral royalties fill the budget gap that an income tax would otherwise cover. Property tax is notably low at 0.65% average, and combined sales tax runs 5.44% — bottom-10 nationally.

There's no estate or inheritance tax. Retirees with investment income pay nothing at the state level, which is why Wyoming frequently appears on lists of top retirement tax states alongside its zero-tax neighbors.

Filing in Wyoming: there is no state income tax return — no April filing, no state withholding, nothing owed to Cheyenne on wages or investments. Your tax season is federal-only.