Practical GST tools for Indian businesses
Calculate, check and act with browser-based GST tools built for freelancers, accountants and small businesses.
Use current rules for a new invoice. Confirm the rate from the relevant HSN/SAC and official notification.
Choose your GST task
Open the tool that matches what you need to do.
GST Calculator
Add or remove GST and split CGST/SGST or IGST.
Open toolReverse GST Calculator
Find tax and taxable value within an inclusive price.
Open toolRegistration Threshold Check
Check when GST registration may be required.
Open toolGST Registration Checklist
Track registration documents and tasks, then export your progress.
Open toolComposition vs Regular
Compare composition tax with ITC-aware regular GST.
Open toolGST ITC Calculator
Estimate eligible input tax credit and net cash tax payable.
Open toolITC Reconciliation
Identify ITC gaps and invoices needing follow-up.
Open toolGSTIN Validator
Check GSTIN format, checksum and state-code structure.
Open toolBulk Invoice Calculator
Create a line-by-line GST invoice breakdown.
Open toolGSTR Due Date Finder
Find filing deadlines for common GST returns.
Open toolGST Rate Finder
Search products and HSN/SAC codes for GST rates.
Open toolPlace of Supply Finder
Check whether CGST+SGST or IGST generally applies.
Open toolHow GST calculations work
Exclusive price
GST = taxable value × GST rate
Invoice total = taxable value + GST.
Inclusive price
Taxable value = inclusive amount × 100 ÷ (100 + rate)
GST = inclusive amount − taxable value.
Place of supply
Intra-state supplies generally split GST equally into CGST and SGST. Inter-state supplies generally use IGST.
Recommended next action
Starting or growing a business
Check GST registration eligibility first.
Sending an invoice
Build the taxable value and tax breakup.
Reviewing purchases
Reconcile eligible ITC before return preparation.
Calculations are estimates, not tax advice. Verify classification, place of supply, eligibility and current notifications before invoicing or filing.
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