Free Business Calculators for Indian Small Businesses
Instant, free calculators for the numbers Indian small businesses deal with every day — GST, late fees, EPF, ESI, gratuity, income tax, HRA and EMI. Every calculator runs in your browser, needs no sign-up, and shows the formula and a worked example so you can see exactly how the answer is worked out.
GST Calculator
Add or remove GST at any slab (5% / 18% / 40%) with an automatic CGST/SGST or IGST split.
Open calculator →GST Late Fee & Interest
Work out the ₹50/day (₹20 nil) late fee plus 18% annual interest on unpaid GST.
Open calculator →EPF Calculator
Employee and employer PF contributions, with the EPS split, on the ₹15,000 wage ceiling.
Open calculator →ESI Calculator
Employee 0.75% and employer 3.25% ESI contributions for wages up to ₹21,000.
Open calculator →Income Tax Calculator
Tax under the new regime (FY 2025-26) — with the ₹12 lakh rebate and marginal relief.
Open calculator →HRA Exemption Calculator
House Rent Allowance exemption as the least of the three prescribed amounts.
Open calculator →EMI Calculator
Monthly EMI, total interest and total payment for any business or personal loan.
Open calculator →A note on accuracy
These calculators are general tools, not professional advice. Tax rates, thresholds and rules change and depend on your exact facts — always confirm your situation with a qualified Chartered Accountant or tax professional and check the official portals. See our Disclaimer.
Related: Free Excel templates » · GST guides » · Payroll, EPF & ESI » · Compliance calendar »