GST billing software that gets the tax right

A GST invoice is a legal document. Rule 46 of the CGST Rules lists what a tax invoice must carry, including the supplier's GSTIN, a serial number unique for the financial year, the recipient's details, HSN or SAC codes, the taxable value, the rate and amount of each tax, and the place of supply for inter-state sales. A mistake in any of these causes mismatches in GSTR-1 and can hold up your buyer's input tax credit.

So good GST invoice software should do four things without you having to think about them:

1. Pick the right tax: CGST plus SGST within the state, IGST across states.
2. Number invoices in a continuous series that is unique for the financial year.
3. Carry HSN/SAC codes and GST rates from the item master onto every line.
4. Turn the month's invoices into the figures you report in GSTR-1 and GSTR-3B.

Tax in JustBill is worked out for each line item, the way the GST law and the GSTR-1 format expect. Here is what happens when you add a line:

1. 1

   Place of supply

   JustBill compares your company's state with the customer's state or place of supply. The same state means an intra-state supply; different states mean inter-state.

2. 2

   Taxable value

   Quantity times price, less discount. If you entered a tax-inclusive price, the taxable value is backed out of it, so ₹1,180 at 18% gives a taxable value of ₹1,000.

3. 3

   Tax split

   For an intra-state sale the GST is divided equally into CGST and SGST (₹90 + ₹90 in the example). For an inter-state sale the full ₹180 is IGST.

4. 4

   Invoice totals

   Line taxes add up to the invoice totals, with optional TCS, additional charges and automatic round-off to the nearest rupee.

Customers marked as SEZ, export or exempt get zero GST automatically, and the PDF and GSTR-1 treat them accordingly. You can also flag an invoice as reverse charge. Check the numbers for any price with our GST calculator.

Set up each item once with its HSN or SAC code, GST rate, unit and selling price. You can search the HSN list while creating an item, so you pick a valid code. When you bill, these details fill in by themselves, and you can still change the price on a particular invoice. You can also record a special price for a particular customer on the item.

Customer and supplier records hold the GSTIN, billing address, state and tax type. GSTINs are checked for the correct 15-character format, so a typo is caught before it reaches your return.

Each type has its own number series: a prefix you set, such as INV/26-27/, followed by a running number. Change the prefix at the start of a financial year to begin a fresh series. Stock and party balances update when documents are saved, and are reversed if a document is edited or deleted.

Your invoices feed the GST reports directly, so there is no re-typing into a spreadsheet at month end.

• GSTR-1 with B2B, B2C large, B2C small, credit note and HSN summary sections.
• GSTR-3B summary, and a GSTR-2 purchase register.
• GSTR-2B reconciliation, to check the input tax credit your suppliers have reported.
• HSN-wise sales and purchase summaries, and TCS and TDS reports.
• JSON downloads for GSTR-1 and GSTR-3B in the GST offline-tool format.

A filing calendar shows the returns due, their due dates and the number of invoices in each period, and reminds the owner before each due date. Reports are included from the Silver plan upwards. See GST return filing for how the monthly cycle works.

1. 1

   Create your account

   Sign up and choose the Free plan. It starts straight away, with no payment, for up to 50 invoices a month and one user.

2. 2

   Add your business

   Enter your company name, GSTIN, state and address, and upload your logo and signature for the invoice PDF.

3. 3

   Add items and parties

   Create them one by one or import them from CSV, with HSN/SAC codes, GST rates and opening stock.

4. 4

   Raise your first invoice

   Pick the customer, add items and save. Download the PDF or email it to the customer.

When you need more invoices, more users, reports or e-invoicing, move up a plan from the pricing page.