GST 2.0 Updated →

India's Most Comprehensive GST Calculator

Free, no signup, fully offline-capable. 12 calculation modes, invoice generator, HSN finder, GSTIN validator and more — built for Indian businesses and CAs.

12+ Calculation Modes 4 GST Slabs 0 Signup
728×90 Leaderboard

GSTIN Validator

Validate GSTIN format and checksum instantly — 100% offline, no API call.

Result
Enter an amount to calculate
Rates verified: GST 2.0 (Sep 2025)
ItemAmountSlabGSTTotal
Aggregate
Add items to calculate
Rates verified: GST 2.0 (Sep 2025)
Result
Enter final price to calculate
Rates verified: GST 2.0 (Sep 2025)

Purchases

DescAmtSlabGST

Sales

DescAmtSlabGST
Summary
Add purchases and sales
Result
Enter turnover to calculate
Slab A
-
Slab B
-
Result
Select dates to calculate
Result
Enter cost price to calculate
Result
Enter product price to calculate
Result
Enter price to calculate
Result
Enter export value to calculate
Result
Enter revenue to calculate

Calculation History

No calculations yet
468×60 In-Content

Filing Deadlines

Why GSTFlix

Everything a GST calculation needs, free

12 Calculator Modes

Standard, reverse, multi-item, ITC, composition and more.

Invoice Generator

GST-compliant invoices with live preview and print.

HSN/SAC Finder

160+ codes with GST 2.0 rates.

GSTIN Validator

Offline checksum validation.

Filing Deadlines

Live countdown to GSTR-1, 3B, 9.

No Data Stored

Everything runs locally in your browser.

Works Offline

No server dependency, ever.

Always Free

No paywall on any core feature.

970×90 Wide Leaderboard