Corporate Tax Liability Estimator (2025 Update)
Estimate your company's total tax owed, federal and state, for the 2025 tax year.
Use this free Corporate Tax Liability Estimator to calculate your estimated business taxes for 2025 based on your revenue, deductions, and credits. Updated with 2025 corporate tax rates and thresholds, this tool helps C-corps, S-corps, and LLCs plan ahead for quarterly and annual filings.
💡 Include deductible business expenses such as salaries, rent, utilities, depreciation, and R&D credits.
Ready to Calculate Your Corporate Tax
Enter your business financial information on the left to get an instant estimate of your 2025 corporate tax liability.
How Corporate Tax Is Calculated
Federal Corporate Tax: C-corporations pay a flat 21% federal tax rate on taxable income as of 2025. This rate was established by the Tax Cuts and Jobs Act and remains unchanged.
State Corporate Tax: States have varying corporate tax rates, ranging from 0% in states like Texas and Nevada to over 9% in states like Pennsylvania and Minnesota.
Taxable Income Calculation: Taxable income = Revenue - Operating Expenses - Depreciation & Deductions. This is the amount subject to taxation.
Tax Credits: Credits directly reduce your tax liability dollar-for-dollar, making them more valuable than deductions. Common credits include R&D credits and investment credits.