🏢 Business Tax Calculators

Corporate tax, LLC tax and business entity tax calculators. 12 calculators updated for 2025.

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United States

Calculate federal corporate income tax at the flat 21% rate plus state corporate tax.

Calculate taxes for single-member and multi-member LLCs with pass-through taxation.

Calculate S-Corp tax savings. Compare salary vs distributions for optimal tax outcome.

Compare total tax burden: LLC self-employment tax vs S-Corp salary + distributions.

Calculate the Section 199A Qualified Business Income deduction (up to 20%).

Calculate employer payroll taxes: FICA, FUTA and state unemployment tax.

Estimate tax savings from common business deductions. Track deductible expenses.

Calculate Section 179 and bonus depreciation deductions for business assets.

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Calculate UK corporation tax at 25% main rate with small profits rate and marginal relief.

Calculate tax on dividends from your limited company after the £1,000 allowance.

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Calculate federal + provincial corporate tax with small business deduction.

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Calculate Australian company tax at base rate (25%) or full rate (30%).