What is the difference between CGST+SGST and IGST?

When selling within the same state (Intra-State), tax is split equally between CGST and SGST. When selling to a client in another state (Inter-State), full IGST is applied.

Can I generate a GST invoice without a GSTIN?

Yes! Small businesses operating below the GST threshold can generate standard non-GST invoices or leave the GSTIN field blank.

Automatic GST Rate Breakdown

Invoice Generator with GST

Easily create GST-compliant business invoices with our free online generator. Instantly calculate taxable value, apply custom GST rates (5%, 12%, 18%, 28%), compute CGST + SGST or IGST, and download high-resolution PDF invoices.

Create Free Invoice Now GST Invoice Generator

Key Features of Our GST Invoice Generator

Automated tax calculation: Taxable subtotal + GST = Grand Total

Supports Intra-State GST (CGST + SGST split) and Inter-State GST (IGST)

Add supplier GSTIN and buyer GSTIN numbers for Input Tax Credit (ITC)

Generate UPI QR codes for instant mobile payment via BHIM, GPay, PhonePe

100% free with no registration or credit card required

Export clean PDF invoices or share document + summary on WhatsApp

Who Should Use an Invoice Generator with GST?

GST-Registered Businesses

Mandatory for all Indian businesses registered under the Goods and Services Tax regime.

B2B Vendors & Contractors

Issue official tax invoices so corporate buyers can claim Input Tax Credit seamlessly.

Freelancers & Consultants

For independent service providers whose annual turnover exceeds the threshold or who bill GST clients.

E-commerce & Wholesale Traders

Generate compliant tax invoices for goods shipped across states or within your home state.

GST Tax Calculation Example

Sample services and products commonly added to this invoice format

Service / Item	Description	Qty	Rate (₹)	Total Price (₹)
Software Development Services	Web portal architecture & database setup (Taxable: ₹50,000)	1	₹50,000	₹50,000
Cloud Hosting Subscription	Annual cloud server infrastructure (Taxable: ₹10,000)	1	₹10,000	₹10,000

Understanding GST Invoice Calculations

Taxable Amount (Pre-Tax Price)

The base cost of goods or services before GST tax is applied. Example: ₹10,000.

CGST (Central GST)

For Intra-State sales, half of the total GST rate goes to the Central Government (e.g. 9% for 18% GST).

SGST (State GST)

For Intra-State sales, the remaining half of the GST rate goes to the State Government (e.g. 9% for 18% GST).

IGST (Integrated GST)

For Inter-State sales across state boundaries, the full GST rate is applied as IGST (e.g. 18%).

How to Generate Your Invoice in 3 Steps

Enter Details

Fill in your business name, client details, invoice date, and line items into the clean form.

Set Tax & Template

Select your preferred template (Modern, Professional, Minimal) and apply GST/CGST/SGST/IGST if required.

Download & Share

Click to export a crisp PDF or share the PDF document and invoice summary directly on WhatsApp.

Frequently Asked Questions

Find quick answers to common questions about generating invoices with our tool

You enter line item quantities, unit prices, and discounts. The calculator computes the taxable amount, applies your chosen GST rate (e.g., 18%), and adds the tax to determine the grand total.