GST Book - Simple GST Calculator & Billing App

GST Book is a fast, simple, and accurate GST Calculator App made for business owners, shopkeepers, and traders across India.
Easily calculate GST, create bills, and share invoices — all in one easy-to-use app.

Find CGST, SGST, and IGST amounts instantly, whether you’re adding GST to a base price or removing it from a total.
Works even offline, so you can calculate and manage bills anytime, anywhere.

⚡ Key Features
✅ Instant GST Calculator - Calculate GST-inclusive or GST-exclusive amounts with just one tap.
✅ Accurate GST Breakdown - Automatically view CGST, SGST, and IGST for rates of 3%, 5%, 12%, 18%, or 28%.
✅ Bill & Invoice Maker - Create simple GST bills and share them directly via WhatsApp or PDF.
✅ Kacha Bill Generator - Make quick and professional bills using your business details.
✅ Save Calculation History - Automatically store and access your previous GST calculations.
✅ Offline Mode - Use all calculator and billing features without internet connection.

? Made for Every Business
Perfect for:

Traders and retailers

Shopkeepers and wholesalers

Accountants and freelancers

Service providers and small businesses

?? Simple & Reliable
GST Book makes your daily GST work easier — calculate, bill, and share without any hassle.
It’s fast, secure, and made for Indian businesses that value accuracy and convenience.

? Learn More About GST
For general information on GST rates and categories, visit the official Central Board of Indirect Taxes and Customs (CBIC) website:
? https://cbic-gst.gov.in/gst-goods-services-rates.html


? Download GST Book Today!
Your handy GST Calculator & Billing App for quick and reliable tax calculations anytime, even offline