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GST accountingon your own PC

Invoices, e-invoices, stock, banking and GST returns for Indian businesses. It works offline, and your books stay with you.

The printed tax invoice with HSN summary, IRN and signed QR
  • Works offline
  • GSTR-1 and GSTR-3B
  • E-invoices and e-way bills
  • Daily backups
  • Data on your PC

Papers your customers trust

HSN summary, amount in words, IRN and signed QR, bank details and a UPI QR for the exact amount.

A posted GST tax invoice with its e-invoice IRN, signed QR code, HSN tax table and UPI payment QR

Try the tax yourself

This invoice is worked out by the same GST code OSuite uses. Change anything.

Customer is in

Same state as you: CGST and SGST. Another state: IGST.

GST rate

Shree Ganesh Industrial Supplies

MIDC Bhosari, Pune

GSTIN 27AAPFU0939F1ZV

Tax Invoice

INV/26-27/0001

18 Oct 2026

Bill to

Karnataka Components Pvt Ltd

Bengaluru, Karnataka

Place of supply Karnataka (29)

ItemHSNQtyRateTaxable
Hex bolt M10 x 50, zinc plated73181500500 NOS14.007,000.00
Taxable value
7,000.00
IGST 18%
1,260.00
Total
₹8,260.00

Rupees Eight Thousand Two Hundred Sixty Only

Your books stay with you

  • On your PC. A database of its own, not on our servers. Daily work needs no internet.
  • Backed up every day. With a copy on a USB disk or in OneDrive, and a safety copy before any restore.
  • Honest records. Posted documents are locked and every change is hash-chained, so nothing is quietly rewritten.
How we keep it safe
The backups screen: a daily schedule, a second folder for copies, and the list of backups

Invoicing by tonight

  1. Install it

    One Windows installer. It brings its own database; nothing else to set up.

  2. Add your company

    GSTIN, state, bank and UPI details. Invoice numbers start at 0001.

  3. Post an invoice

    Place of supply, rates and tax fill themselves in.

  4. File by the 11th

    GSTR-1 comes out the way the return asks for it.

24 hours
to cancel an e-invoice; after that OSuite points you to a credit note
200 km
for each day an e-way bill stays valid, counted for you
1 April
when invoice numbers restart for the new financial year
0 internet
needed for daily work; a licence check every 14 days

Plans and prices

Prices exclude 18% GST. Every feature in every plan. Try any of them free for 14 days.

Prices are being updated. Ask us for a quote, or start the free trial.

Not sure yet? Start the free trial: every feature, 14 days, no card.

Questions people ask

Does it work without the internet?
Yes. Everything runs on your PC. OSuite goes online for a moment every 14 days to renew its licence; if it cannot, you get 7 more days before it turns read-only, and your data is never locked away.
Where is my data kept?
In a database on your own computer, not on our servers. Backups run every day and can be copied to a USB disk or a OneDrive or Google Drive folder.
Can I move from Tally?
Not automatically yet; a Tally import is being built. Today you enter opening balances and open invoices once, and we help you do it.
Does it file my GST returns?
It prepares them. GSTR-1 and GSTR-3B come out in the portal’s tables, ready for the offline tool or your accountant. Filing stays on the GST portal.
What about e-invoicing?
OSuite builds and checks the e-invoice and prints the IRN and signed QR. Live registration goes through a GST Suvidha Provider, which is being connected now.
How many people can use it?
Each plan includes a number of users. Everyone has their own login, and every change is kept in an edit history that cannot be quietly rewritten.
What if I stop paying?
After the paid period and 7 days of grace, OSuite turns read-only. You can still open every record, print and take backups.
Can I get my money back?
Within 14 days of buying, if OSuite is not for you.