Lekhae
Free GST tools
Small, fast tools for GST invoicing, classification, invoice admin and payment follow-up.
GST invoice generator
Create a full GST invoice with CGST/SGST or IGST, HSN/SAC, discounts and UPI QR.
Open tool →GST calculator
Add or remove GST and see the CGST/SGST or IGST split instantly.
Open tool →HSN/SAC finder
Search common goods and services to find a likely code and indicative GST rate.
Open tool →GSTIN validator
Check GSTIN format and decode the state code from the first two digits.
Open tool →Place of supply checker
Work out whether a sale is intra-state or inter-state from the state codes.
Open tool →Invoice number generator
Generate a clean consecutive invoice-number series with your own prefix.
Open tool →Payment terms calculator
Turn an invoice date and credit terms into a due date and reminder schedule.
Open tool →GST interest calculator
Estimate delayed-payment interest on GST tax dues at common annual rates.
Open tool →