Free Business Tools for Founders
Invoice clients, model payroll, plan a mortgage or loan, calculate profit margins, look up sales tax, and set a freelance rate — the financial toolkit every early-stage business needs.
8 free tools for founders & small business owners
Invoice Generator
Create and download professional invoices instantly
Paycheck Calculator
Calculate your take-home pay after taxes instantly
Mortgage Calculator
Full PITI mortgage calculator with amortization schedule and PMI tracking
Loan Calculator
Auto, personal, student & home equity loan calculator with amortization schedule
Profit Margin Calculator
Calculate gross margin, net margin, and markup — and reverse-calculate your price
Sales Tax Calculator
Calculate sales tax for any US state — add tax or reverse from total
Freelance Rate Calculator
Calculate the hourly rate you actually need to charge as a freelancer
QR Code Generator
Create custom QR codes with colors, logos, and styles
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