Wyoming does not impose a corporate income tax

# Summary

Wyoming does not impose a corporate income tax. There is no Wyoming corporate income or franchise tax measured by net income, and no corporate income tax return.

Wyoming also imposes no gross receipts tax on business of the kind that replaces a corporate income tax in several other no-income-tax states — there is no Nevada-style commerce tax, no Washington-style business and occupation tax, and no Texas-style franchise tax on margin. A Wyoming corporation's state tax exposure comes from transaction and property taxes, and from severance taxes if it extracts minerals.

One qualification: the constitution does not prohibit a corporate income tax, it conditions one. See "Constitutional position".

# Wyoming Legislature statement

The Legislative Service Office's "Wyoming Statutory Tax Structure: Title 39," dated June 3, 2025, records in its rates and collections table:

Corporate Income Tax — FY25 base rate: 0% (Note Art. 15, Sec. 18) — FY24 collections: $0

The same table records the individual income tax at 0% with $0 collected.

The table is a complete statement of Wyoming's tax structure by the Legislature's own research office. What it lists — property, severance, sales, use, lodging, fuel, cigarette and tobacco, liquor, wind generation — is what Wyoming levies. No entity-level income or gross receipts tax appears anywhere in it.

# Constitutional position — Wyo. Const. art. 15, § 18

Wyoming's constitution conditions an income tax rather than forbidding one. Article 15, Section 18:

"Sec. 18. Full tax credit allowed against any liability arising from a tax on income. No tax shall be imposed upon income without allowing full credit against such tax liability for all sales, use, and ad valorem taxes paid in the taxable year by the same taxpayer to any taxing authority in Wyoming."

Ratified at the general election of November 5, 1974 and proclaimed in effect December 12, 1974.

The provision is not limited to natural persons. It speaks of "any liability arising from a tax on income" and requires credit for taxes paid "by the same taxpayer," so a corporate income tax would be subject to the same condition — full credit for the sales, use and ad valorem taxes the corporation paid in the year.

For a capital-intensive Wyoming corporation paying substantial property and sales tax, that credit would be large. But the constraint is a credit requirement, not a prohibition: a corporate income tax could be enacted by ordinary legislation that satisfies § 18. This determination is accordingly less durable than one resting on a constitutional ban, and should be re-verified each session year.

# No local income tax either

Title 39's income tax chapter contains one section, and it reserves the field rather than taxing it.

W.S. § 39-12-101, "Preemption by state":

"The state of Wyoming does hereby preempt for itself the field of imposing and levying income taxes, earning taxes, or any other form of tax based on wages or other income and no county, city, town or other political subdivision shall have the right to impose, levy or collect such taxes."

So no Wyoming county, city, town or other political subdivision may impose an income tax, an earnings tax, or any other tax based on income on a corporation doing business there. The answer is uniform statewide, which is not true in every no-income-tax state.

# What Wyoming does impose

This page is limited to the corporate income tax. A Wyoming corporation may owe, from the Legislative Service Office's June 2025 rates table:

• Sales and use tax at 4% statewide plus 0-3% local option.
• Property tax, levied locally, with assessment at 100% for mining, 11.5% industrial, and 9.5% for all other property.
• Severance taxes where it extracts minerals: gas 6%; surface coal 6.0% and underground coal 3.75%; oil 6%; trona 4%; uranium 0-5%; other valuable deposits 2%.
• Lodging tax at 3% statewide plus a local component.
• Fuel taxes at $0.24 per gallon; cigarette and tobacco taxes; liquor revenue.
• Wind generation tax at $1.00 per megawatt hour, beginning three years after a turbine first produces electricity.

Entity formation and annual report obligations are handled by the Wyoming Secretary of State and are outside the scope of this determination.

# Coverage and verification

Tax years covered: 2025.

Verified on 2026-08-13 against the Wyoming Legislative Service Office's "Wyoming Statutory Tax Structure: Title 39" dated June 3, 2025, the Wyoming Constitution as published by the Secretary of State including amendments through November 18, 2024, and Wyoming Statutes Title 39 as published in this library.

Sourcing note. The Wyoming Department of Revenue does not state this position; its homepage, mission page and the Excise Tax Division FAQ were retrieved and contain no mention of income tax. This determination rests on the Legislature rather than the tax administering agency.

Because the constitution conditions rather than prohibits an income tax, this determination should be re-verified each session year.

# Sources

Wyoming Legislative Service Office, Wyoming Statutory Tax Structure: Title 39 (June 3, 2025) — https://wyoleg.gov/InterimCommittee/2025/03-202506032-01WyomingtaxstructureratesandcollectionsJune32025.pdf

Wyoming Constitution, art. 15, § 18 (Wyoming Secretary of State) — https://sos.wyo.gov/Forms/Publications/WYConstitution.pdf

W.S. § 39-12-101, as published in this library.