Finance & Accounting Calculators
Practical calculators for freelancers, small business owners and bookkeepers — pricing, tax, break-even, depreciation and loan math, solved instantly without spreadsheets or sign-up.
Late Payment Interest Calculator
Work out interest owed on an overdue invoice, plus a ready reminder message.
Freelance Rate Calculator
Work out the hourly or day rate you need to charge to hit your income goal.
Markup vs Margin Calculator
Stop confusing markup and margin — see both, side by side, from any two values.
Quarterly Tax Calculator
Estimate US self-employment quarterly tax payments so you're never caught by surprise.
Break-Even Calculator
Find out how many units you need to sell before you start turning a profit.
Business vs Personal Expense Splitter
Split mixed expenses into deductible business and non-deductible personal amounts.
Discount Calculator
Calculate a discounted price, or work out what discount % was applied.
Depreciation Calculator
Straight-line and declining-balance depreciation schedules for any asset.
Sales Tax / VAT Calculator
Add tax to a price, or remove tax from a tax-inclusive total.
Loan / EMI Calculator
Calculate your monthly loan payment and full amortization schedule.
Tax Set-Aside Calculator
Log each payment and instantly see how much to move to savings for taxes.
Cash Flow Runway Calculator
Find out how many months your business can survive at its current burn rate.
RAP vs IBR Calculator
Compare the new RAP plan against IBR and refinancing — and see which to pick.
No Tax on Tips & Overtime Calculator
See how much the 2025–2028 tips and overtime deductions actually save you.
Trump Account vs 529 Calculator
Project the new Trump Account against a 529 and see which wins for your goal.
Seller Margin & Tariff Calculator
Turn supplier cost + tariff + fees into your true landed cost and net margin.