India

GST invoice software for India

Tax Invoices with CGST and SGST or IGST worked out from the place of supply, HSN and SAC codes, and a UPI QR your customer can scan.

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Free for 5 invoices a month. Pro from ₹299 a month.

The Openn Group

GSTIN29ABCDE1234F1Z5

Tax Invoice

OG/26-27/0046

Date: 5 Oct 2026
Due: 20 Oct 2026

Bill to

Brew Street Cafe

Item	Qty	Rate	GST	Amount
Logo designSAC 998391	1	18,000.00	18%	18,000.00
Menu cards	2	4,000.00	18%	8,000.00
Shop signboard	1	14,000.00	18%	14,000.00

Taxable value₹40,000.00

CGST 9%₹3,600.00

SGST 9%₹3,600.00

Total₹47,200.00

Set for India

Made for how India invoices.

Logo design₹18,000.00

GST18%

CGST 9%: ₹1,620.00
SGST 9%: ₹1,620.00

Total₹18,000.00₹21,240.00

GST

Most goods and services are at 5% or 18% since September 2025, with 40% on a short list of goods and 0.25% and 3% for stones and gold. Inside your state the tax splits into CGST and SGST; to another state it is IGST.

The Openn Group

GSTIN 29ABCDE1234F1Z5

InvoiceTax Invoice

OG/26-27/0046

GSTIN

A GSTIN is 15 characters: the two-digit state code, your PAN, an entity number, the letter Z and a check character. With it saved, your invoices are titled “Tax Invoice”. Without it they are a plain “Invoice”.

1234567.89₹12,34,567.89

On an invoice: 5 Oct 2026
On a bank statement: 05/10/2026

INR and local dates

Amounts are in Indian rupees, and you can pick another currency on any invoice. A bank statement you upload is read the way banks in India write dates.

OG/25-26/021129 Mar 2026
OG/25-26/021231 Mar 2026
OG/26-27/00011 Apr 2026

Financial year from 1 April

Invoice numbers start a new series each April, so the first invoice of the year is OG/26-27/0001.

Not connected: e-invoicing (IRN). E-invoicing through the Invoice Registration Portal applies above ₹5 crore of turnover. Openn Invoice does not generate IRNs or e-way bills.

What a Tax Invoice needs to show in India.

Rule 46 of the CGST Rules lists what a Tax Invoice carries:

Your name, address and GSTIN
An invoice number of up to 16 characters, in one series for the financial year
The date of issue
Your customer’s name and address, and their GSTIN if they are registered
The HSN code for goods or the SAC for services
Description, quantity and unit, and the taxable value after any discount
The rate and amount of CGST, SGST or IGST
The place of supply with the state name
Your signature or digital signature

Composition dealers get a Bill of Supply instead of a Tax Invoice, and TDS your customer deducts is recorded against the invoice.

Check with your accountant for your case.

The Openn Group1

GSTIN29ABCDE1234F1Z51

Tax Invoice

2OG/26-27/0046

3Date: 5 Oct 2026
Due: 20 Oct 2026

Bill to

Brew Street Cafe4

GSTIN29AAGCB7781K1Z24

Place of supplyKarnataka (29)8

Item56	Qty	6Rate	GST	Amount
Logo designSAC 998391	1	18,000.00	18%	18,000.00
Menu cards	2	4,000.00	18%	8,000.00
Shop signboard	1	14,000.00	18%	14,000.00

Taxable value6₹40,000.00

CGST 9%7₹3,600.00

SGST 9%₹3,600.00

Total₹47,200.00

How to pay

Account number: 50200012345678
IFSC: HDFC0000060
UPI ID: openn@okhdfcbank

9Authorised signatory

for The Openn Group

Getting paid

From invoice to paid, the way India pays.

Please find invoice OG/26-27/0046 for ₹47,200.00 from The Openn Group, due on 20 Oct 2026.
invoice.theopenngroup.com/i/7kq2
1. Sent by youWhatsApp
2. Not viewed yetViewed
Send it yourself
Share the invoice from your own WhatsApp or email. The track turns to Viewed when your customer opens it.
To pay
₹47,200.00
How to pay
Account number
50200012345678
IFSC
HDFC0000060
UPI ID
openn@okhdfcbank
Your customer sees how to pay
Most customers pay by UPI or by bank transfer (NEFT, IMPS or RTGS). Rupee invoices carry a UPI QR, your account number and your IFSC.
OG/26-27/0046Brew Street Cafe
DuePaid
+₹47,200.00
05/10/2026 · UPI/BREW STREET CAFE/OG-26-27-0046
Matched from your bank statement
Match it from your statement
On Pro, upload your bank statement. Dates written like 05/10/2026 are read correctly, and you match each payment in one click.

Keeping track

Who owes you, and the GST you charged.

Unpaid

₹82,029

₹69,049 overdue across 2 invoices

Mehta Pharma

OG/26-27/0039 · ₹46,846.00 · 6 days late

WhatsAppEmail

Unpaid and overdue, on Home

Each late invoice has its reminder written. You send it yourself, from your own WhatsApp or email.

This monthThis month
This quarterThis quarter

Taxable value: ₹1,18,400.00₹3,42,700.00
CGST + SGST: ₹15,912.00₹43,326.00
IGST: ₹5,400.00₹18,360.00

GST reports, table by table

Pick the month, the quarter or the financial year. Sales are sorted into the GSTR-1 tables, for you or your CA to check before filing.

Pricing

What it costs in India.

Free
₹0
5 invoices a month
Unlimited quotations, up to 10 customers. Shows a few ads.
Pro
₹299 a month
or ₹2,499 a year
Just you, on up to 3 devices, plus your accountant. Unlimited invoices, and payments matched from your bank statement.
Team
₹699 a month
or ₹5,999 a year
Up to 3 people.
Business
₹1,499 a month
or ₹12,999 a year
Up to 10 people.

Start free

Prices include 18% GST.

Full pricing

FAQ

Questions from India.

Does Openn Invoice make a proper Tax Invoice for India?

Yes. Add your GSTIN in settings and each invoice is titled “Tax Invoice”, with GST worked out line by line at the rate you set and totals in Indian rupees. What it has to show in India is listed on this page. Check with your accountant for your case.

Does it connect to e-invoicing (IRN)?

E-invoicing through the Invoice Registration Portal applies above ₹5 crore of turnover. Openn Invoice does not generate IRNs or e-way bills.

I am not registered for GST. Can I still use it?

Yes. Leave the GSTIN empty in settings and send invoices with no GST on them. They are titled “Invoice” instead of “Tax Invoice”. GST registration is needed once turnover in a year passes ₹20 lakh for services or ₹40 lakh for goods in most states.

Can I bill customers outside India?

Yes. Pick the customer’s country and currency on the invoice. A customer abroad is billed as an export, with no GST added. You see the reason on the invoice before you send it.

What does it cost in India?

Free covers 5 invoices a month. Pro is ₹299 a month or ₹2,499 a year, with unlimited invoices, recurring invoices and bank statement matching. Prices include 18% GST.

Have another question? Contact us

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