Free Business Tools

Calculators, generators, and reference tools for small business owners and entrepreneurs. No signup. No fees. Just tools that work.

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Financial Calculators

Profit Margin Calculator Gross margin, net margin, and markup percentage Break-Even Calculator Units and revenue needed to cover costs Markup Calculator Convert between margin and markup Salary to Hourly Converter Annual salary ↔ hourly rate

Business Formation

LLC Cost Calculator by State Filing fees, annual costs for all 50 states Business Name Generator Generate and check name availability DBA vs LLC Comparison Which structure is right for you?

Tax Tools

Self-Employment Tax Estimator Estimate your SE tax liability Sales Tax Calculator Rates by state and city Quarterly Tax Estimator Estimated tax payment amounts
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Business Operations

Invoice Generator Create and download PDF invoices Mileage Reimbursement Calculator IRS standard mileage rate for 2026 Tip Calculator Split tips for service businesses