Wyoming Corporate Tax Calculator (C-Corp State Tax)

Wyoming levies no corporate income tax, and like South Dakota, it doesn't impose an alternative gross-receipts-style tax in its place either, a distinction that separates the two states from Nevada, Ohio, Texas, and Washington, which all replace their missing income tax with some form of receipts-based levy.

For a corporation modeling Wyoming against a state like Texas, whose Franchise Tax applies regardless of profitability, Wyoming's 0.00% corporate income tax rate is a more complete picture of the state-level burden: there is no separate gross-receipts mechanism this calculator, or any calculator, needs to account for separately.

Because Wyoming's corporate income tax rate is 0.00%, the calculator's $500,000 example produces no state tax liability at all. Like South Dakota, there's no separate gross-receipts levy standing in for the missing income tax either, making Wyoming's $0.00 figure a genuinely complete picture of the state-level burden.

Wyoming levies no corporate income tax, no personal income tax, and no gross receipts tax on business activity. The state funds itself principally from mineral severance taxes and property tax on mineral production, which is why it can sustain the arrangement. What a Wyoming entity does owe is an annual report license tax based on assets located in Wyoming, a filing fee with a floor rather than a tax on profit.

This holds at every income level. Wyoming has no income tax statute to compute a base under, so there is no apportionment step and no return.

1. Corporate Income Tax Determination: Wyoming has no corporate income tax statute, so no state income base is computed and no corporate income tax return is filed.
2. Gross Receipts Test: Wyoming imposes no general gross receipts or business activity tax, so unlike Nevada, Ohio, Texas, and Washington there is no receipts threshold to test.
3. Annual Report License Tax: The entity pays the annual report license tax based on the value of assets located and employed in Wyoming, subject to a statutory minimum, filed with the Secretary of State.
4. Sales & Use Tax Registration: Businesses with Wyoming nexus register to collect state and county sales tax, a collection duty on customers rather than a tax on the entity's profit.
5. Severance Tax Check: Extractive operations pay Wyoming severance tax on mineral production, which is the state's principal business levy and is unrelated to corporate profit.
6. Federal Liability Verification: With no state income tax, the federal 21% corporate rate under IRC § 11 is the only income tax on these earnings.

Using this calculator's baseline scenario: a corporation with $500,000 in taxable income apportioned to Wyoming.

1. Start with apportioned taxable income. The corporation has $500,000 of taxable business income apportioned to Wyoming.
2. Apply Wyoming's statutory corporate income tax rate. Wyoming does not levy a general corporate income tax on this income, so the applicable state rate is 0.00%: $500,000 × 0.00% = $0.00.
3. Wyoming state corporate income tax due: $0.00.
4. Net retained profit. With no state income tax liability, the corporation retains the full $500,000.00 apportioned to Wyoming.

This calculator computes only the Wyoming state corporate income tax shown above; it does not compute, model, or include federal corporate income tax in this result. Separately from this calculator's output, the corporation's federal taxable income would remain subject to the flat 21% federal corporate income tax rate under IRC § 11, assessed independently by the IRS regardless of Wyoming's lack of a state-level corporate income tax.

Every row of the income sweep reads $0.00. At $100,000 of apportioned income the tax is $0.00; at $500,000 it is $0.00; at $5,000,000 it is $0.00. The reported effective rate and the reported marginal rate are both 0.00% at every point, and the twelve-row schedule that walks income in sixths from one sixth of the entered figure to twice it produces twelve zeros.

The marginal cost of the next $1,000 of apportioned income is $0.00. So is the marginal cost of the next $4,500,000: raising income from $500,000 to $5,000,000 leaves the tax unchanged at $0.00. There is no threshold, no minimum tax and no franchise floor anywhere in this code path.

The credits input does nothing here. Enter $10,000 of state tax credits against the $500,000 baseline and the result is still $0.00, because the engine takes the greater of zero and tax less credits and the tax was already zero. The input exists because this page shares a configuration with the states that do levy the tax, and on this page it is inert.

What the zero is worth, priced against neighbours. The same $500,000 of apportioned income costs $30,000.00 in Virginia at its flat 6.00%, $32,500.00 in West Virginia at 6.50%, $39,500.00 in Wisconsin at 7.90%, and $42,025.00 in Vermont under its graduated schedule. Against that range the $0.00 here is the entire practical content of the calculation, and it is a comparison the sweep on this page cannot make on its own because every one of its rows is the same number.

The omissions that matter most. Wyoming charges no corporate income tax and no gross receipts tax, but it does levy an annual license tax on in-state assets and it raises the bulk of its revenue from mineral severance. Neither appears in this code path, and neither turns on the income figure this page asks for, so a Wyoming entity's actual state cost is not a function of the number entered above.

• The annual license tax on in-state assets is not computed. It runs on assets rather than income and no input collects them.
• The credits input is inert. Any figure entered returns the same $0.00.
• Federal corporate income tax (21% under IRC § 11).
• Specialized gross receipts taxes (e.g. Ohio CAT, Washington B&O, Texas Franchise Tax) where applicable.
• Minimum entity franchise tax fees or annual report filing charges.
• Base Erosion and Anti-Abuse Tax (BEAT) or Global Intangible Low-Taxed Income (GILTI) provisions.
• Local municipal corporate earnings taxes (e.g. NYC General Corporation Tax).

• Assuming Wyoming Has a Hidden Gross-Receipts Tax: Treating Wyoming like Nevada, Ohio, Texas, or Washington and assuming a replacement levy exists, when Wyoming is one of only two states (with South Dakota) that taxes corporate activity through neither mechanism.
• Improper Apportionment Sourcing: Applying market-based sourcing vs cost-of-performance rules incorrectly for service revenue tied to Wyoming.
• Ignoring Unitary Group Combined Reporting: Failing to account for mandatory combined return requirements across related entities in states where a corporation does owe net income tax.
• Neglecting State NOL Carryforward Caps: Overlooking annual percentage limitations on net operating loss deductions in the other states where a Wyoming-based company actually owes income tax.

• Wyoming Department of Revenue: Corporate Tax Statutes and Guidance (2026). revenue.wyo.gov
• Multistate Tax Commission (MTC): Uniform Apportionment and Allocation Guidelines. mtc.gov