GST Calculator Tax Calculator

⚠ IMPORTANT DISCLAIMER
This app is NOT affiliated with, endorsed by, or connected to the Government of India, the GST Council, the Central Board of Indirect Taxes and Customs (CBIC), or any other government entity. GST Calculator is an independent, third-party utility tool created to help users calculate GST amounts.
For official filing, return submission, or legal GST advice, please visit the government sources above or consult a qualified Chartered Accountant.
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India's simplest GST Calculator — updated for GST 2.0 with the new 5% and 18% slabs effective September 2025. Calculate tax in seconds, generate PDF invoices, and look up GST rates for any product or service. Works completely offline.
Trusted by shopkeepers, business owners, freelancers, accountants, and CA students across India.
What you can do

Calculate GST on any amount — exclusive or inclusive
Split tax into CGST and SGST for intra-state billing
Apply IGST for inter-state transactions
Build multi-item invoices and export them as PDF
Look up GST rates for over 200 products and services
Save every calculation to history for future reference
Switch the app to 10 Indian languages

GST Calculator
Enter an amount, choose a rate, and see the result instantly.

GST Exclusive — add tax to your base price. Enter ₹1,00,000 at 18% and get ₹1,18,000 with the full CGST and SGST split.
GST Inclusive — remove tax from the final price. Enter ₹1,18,000 at 18% and see the original amount before tax.
Intra-State (CGST + SGST) or Inter-State (IGST) — switch with one tap.
All GST 2.0 rate slabs built in — 0%, 3%, 5%, 18%, 40%. Plus a custom rate option for special cases.

Every result is saved automatically. Copy, share, or convert any past calculation into a PDF whenever you need it.
Invoice Calculator and PDF Export
Calculate GST across multiple items and share a clean PDF invoice in under a minute.

Add unlimited items, each with its own name, quantity, rate, and GST percentage
See live totals for CGST, SGST, and grand total as you add items
Share a professional tax invoice with your business name, GSTIN, address, and logo
Amount printed in words using Indian conventions (Lakhs and Crores)
Share directly to WhatsApp, email, or any other app

GST 2.0 Rate Finder
Search any product or service and see the applicable GST rate.

Over 200 items across 9 categories — food, electronics, healthcare, automobile, clothing, services, real estate, gold, and luxury goods
Reflects the September 2025 reform — see which items moved from 12% to 5%, which moved from 28% to 18%, and which now attract 40%
Old versus new rate comparison
HSN codes shown for commonly traded items

Note: Rate data is compiled from publicly available sources including CBIC notifications. For the authoritative rate list, always refer to https://cbic-gst.gov.in
Available in 10 Indian languages
Hindi, Tamil, Telugu, Kannada, Malayalam, Marathi, Bengali, Gujarati, Punjabi, and Odia — in addition to English. Change the app language anytime from Settings.
Why this app

Accurate to the paisa — uses precise decimal math
Real-time calculation as you type
Indian number formatting (₹1,23,456)
Amount in words in proper Indian English
Full calculation history with date and time
Works fully offline — no internet needed
No signup, no login required

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DISCLAIMER
This app is NOT affiliated with, endorsed by,
sponsored by, or connected to the Government of India, the GST
Council, the Central Board of Indirect Taxes and Customs
(CBIC), the Ministry of Finance, or any other government
entity or agency.
Official government sources for GST information:

https://www.gst.gov.in (GST Portal)
https://gstcouncil.gov.in (GST Council)
https://cbic-gst.gov.in (CBIC - Official Rates).