Key points
- GST billing software makes tax invoices with the right tax, codes and details.
- It works out tax from each item’s rate and the customer’s state.
- Every bill flows into your GST return data.
- Good software also updates stock and customer balances.
- You set things up once; after that, billing is quick.
What a GST bill is
A GST tax invoice is not just a receipt. It is a tax document that lets a registered customer claim credit for the GST they paid you. That is why it has to show certain details, like your GSTIN, the customer’s GSTIN if they have one, HSN codes and the tax broken into CGST and SGST or IGST.
What the software does for you
- Remembers your details Business name, address, GSTIN and bill series are set once.
- Remembers your items Each item has its price, HSN code and GST rate.
- Remembers your customers Names, phone numbers, GSTINs and states.
- Works out the tax From the item rate and whether the customer is in your state.
- Prints or sends the bill In a correct GST format, on paper or WhatsApp.
- Records it for returns The bill goes into your GSTR-1 and GSTR-3B figures.
How the tax is worked out
Say you sell an item for ₹1,000 at 18% GST. The tax is ₹180. If the customer is in your state, the bill shows ₹90 CGST and ₹90 SGST. If they are in another state, it shows ₹180 IGST. The software decides this from the customer’s state. Try it in our GST calculator.
What happens after you make a bill
| Where it goes | Why |
|---|---|
| GSTR-1 (sales return) | Reports your sales to the government |
| GSTR-3B (tax summary) | Where you pay the tax |
| Customer’s GSTR-2B | So a registered customer can claim credit |
| Your stock (in ERP) | Stock goes down automatically |
| Customer account | Shows what they owe if unpaid |
Words you’ll see in the software
| Word | Meaning |
|---|---|
| GSTIN | Your 15-character GST number |
| HSN / SAC | Codes for goods / services that decide the rate |
| B2B / B2C | Sales to registered businesses / to consumers |
| Place of supply | Where the sale is taxed; decides the tax type |
| Credit note | A document to reduce a bill, for returns or discounts |
Getting started
Set up your business details, import your items with HSN codes and rates, add regular customers, and make a few test bills. See our step-by-step setup guide.