Free Business & Tax Calculators
Simplify your business finances with our suite of free online calculators. Calculate GST, VAT, Sales Tax, Profit Margins, Break-Even Points, Markup pricing, and Discounts instantly. All tools are free and run entirely in your browser.
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Tax Calculators
Calculate GST, VAT, and Sales Tax with detailed breakdowns.
GST Calculator
Use our free GST calculator to calculate inclusive and exclusive GST instantly. Supports 5%, 12%, 18%, and 28% GST rates with CGST and SGST breakdown.
Use Calculator Tax CalculatorVAT Calculator
Calculate VAT instantly with our free UK VAT calculator. Add or remove VAT at 20% or any custom rate. Perfect for businesses, freelancers, and accountants.
Use Calculator Tax CalculatorSales Tax Calculator
Calculate US sales tax instantly. Add or remove state sales tax with custom rates. Free, fast, and accurate for all 50 states.
Use CalculatorFinance & Investment Calculators
Plan your investments, estimate loan payments, and calculate returns with interactive charts. Our finance calculators support multiple countries and currencies for a global audience.
SIP Calculator
Calculate SIP (Systematic Investment Plan) returns with our free calculator. See how monthly investments grow over time with compound interest and visual charts.
Use CalculatorFinance CalculatorEMI Calculator
Calculate your monthly EMI for home loans, car loans, and personal loans. See total interest payable and amortization breakdown with interactive charts.
Use CalculatorFinance CalculatorCompound Interest Calculator
Calculate compound interest with different compounding frequencies. See how your money grows over time with interactive growth charts.
Use CalculatorFinance CalculatorIncome Tax Calculator
Calculate your estimated income tax based on tax brackets for USA, UK, India, Canada, and Australia. See marginal and effective tax rates with visual breakdown.
Use CalculatorFinance CalculatorROI Calculator
Calculate Return on Investment (ROI) instantly. Enter investment cost and returns to find ROI percentage, annualised returns, and profit with visual charts.
Use CalculatorFinance CalculatorRetirement Calculator
Plan your retirement with our free calculator. Estimate how much you need to save monthly, see corpus growth with inflation adjustment, and visualize your retirement fund over time.
Use CalculatorFinance CalculatorCAGR Calculator
Calculate CAGR (Compound Annual Growth Rate) instantly. Enter beginning value, ending value, and time period to find the smoothed annual growth rate of your investment.
Use CalculatorFinance CalculatorMortgage Calculator
Calculate mortgage payments, total interest, and view amortization schedules. Includes property tax and insurance. Supports multiple currencies for global users.
Use CalculatorFinance CalculatorLoan Eligibility Calculator
Check your maximum loan eligibility based on income, existing EMIs, and DTI ratio. Compare eligibility across different tenures with interactive charts.
Use CalculatorBusiness Calculators
Essential financial tools for entrepreneurs and businesses.
Profit Margin Calculator
Calculate profit margin percentage instantly. Enter revenue and cost to find profit and margin. Free tool for businesses and entrepreneurs.
Use Calculator Business CalculatorBreak Even Calculator
Calculate your break-even point in units and revenue. Enter fixed costs, variable cost, and selling price. Free tool for business planning.
Use Calculator Business CalculatorMarkup Calculator
Calculate selling price from cost and markup percentage. Free markup calculator for retailers, wholesalers, and businesses.
Use Calculator Business CalculatorDiscount Calculator
Calculate discount amount and final sale price instantly. Enter original price and discount percentage. Free tool for shoppers and retailers.
Use Calculator BusinessLate Payment Fee Calculator
Calculate late payment fees, interest charges, and penalties on overdue invoices. Supports flat fees, monthly percentage, and daily interest methods with multi-currency support.
Use Calculator BusinessHourly Rate Calculator
Calculate the perfect freelance hourly rate based on desired income, expenses, taxes, and profit margin. Multi-currency support for freelancers worldwide.
Use Calculator BusinessNet 30/60/90 Payment Date Calculator
Calculate invoice due dates for Net 7, 10, 15, 30, 45, 60, and 90 payment terms. Includes early payment discount calculations and term comparison.
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Frequently Asked Questions
What free calculators does Rapid Invoice offer?
Rapid Invoice offers free GST Calculator (India), VAT Calculator (UK), Sales Tax Calculator (USA), Profit Margin Calculator, Break Even Calculator, Markup Calculator, Discount Calculator, SIP Calculator, EMI Calculator, Compound Interest Calculator, Income Tax Calculator, and ROI Calculator.
Are these calculators free to use?
Yes, all calculators are 100% free with no signup required. Your calculations stay on your device.
Can I use these calculators on mobile?
Yes, all calculators are fully responsive and work perfectly on smartphones, tablets, and desktops.
Do the financial calculators work for any country?
Yes, our SIP, EMI, Compound Interest, and ROI calculators work with any currency. The Income Tax Calculator supports USA, UK, India, Canada, and Australia tax brackets.
Need to Create an Invoice?
Use our free invoice generator alongside these calculators.
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