GSTR-1 filing software that starts at your invoice
GSTR-1 is the return of your outward supplies — every sale you made, reported invoice by invoice. 24eTax builds it from the invoices you already raised, so preparing GSTR-1 stops being data entry and becomes review.
What is GSTR-1?
GSTR-1 is the monthly or quarterly statement of outward supplies every registered regular taxpayer files. It carries your B2B invoices (buyer-wise, invoice-wise), large B2C invoices, consolidated B2C summaries, credit and debit notes, exports, and the HSN-wise summary of what you sold. Your buyers' input tax credit depends on it — what you report in GSTR-1 appears in their GSTR-2B.
Who must file, and when
Every regular GST registration files GSTR-1 — monthly by the 11th of the following month, or quarterly under the QRMP scheme (with the optional Invoice Furnishing Facility for months 1 and 2, so B2B buyers still get monthly credit). Composition dealers do not file GSTR-1; they file CMP-08 and GSTR-4, which 24eTax also prepares.
What goes into your GSTR-1
- B2B — invoice-wise sales to registered buyers, with GSTIN, place of supply and tax split.
- B2CL — inter-state sales to consumers above the large-invoice threshold, invoice-wise.
- B2CS — everything else to consumers, summarised by state and rate.
- CDNR / CDNUR — credit and debit notes, registered and unregistered.
- Exports — with or without payment of tax.
- HSN summary & document series — the tables most manual preparers dread.
How 24eTax prepares it
Built from committed invoices
Every table above is assembled automatically from the documents you billed with — including credit/debit notes and amendments (B2BA/CDNRA) for corrections to filed periods.
Validated before GSTN
Invalid GSTINs, missing HSNs, wrong-period documents and table-rule violations surface in a validation panel on your screen, not as a portal rejection at the deadline.
Filed with your EVC
Save to GSTN, verify the portal's own computed summary against your books, and file with the OTP on your registered mobile. QRMP filers get IFF handled automatically.
Frequently asked questions
What is the due date for GSTR-1?
Monthly filers: the 11th of the following month. QRMP filers: the 13th of the month after the quarter, with the optional IFF by the 13th of each of the first two months. The app shows your due dates per GSTIN and reminds you before them.
What happens if I file GSTR-1 late?
A late fee applies per day of delay (capped by turnover slabs), and your buyers' credit is delayed because your invoices miss their GSTR-2B for the month — which is why buyers chase suppliers who file late.
Can I revise a GSTR-1 after filing?
GSTR-1 cannot be revised, but corrections are made in a later period through amendment tables (B2BA, CDNRA and others). In 24eTax you amend the invoice; the app routes the change into the right amendment table automatically.
Do e-invoices show up in GSTR-1 automatically?
Yes — invoices reported to the IRP auto-populate into your GSTR-1 at GSTN. 24eTax fetches your GSTN-side GSTR-1 data, keeps the e-invoice identity (IRN), and prevents double-reporting of the same invoice.
I bill very little — do I still need software for GSTR-1?
Even a small GSTR-1 has B2B, B2CS and HSN tables to get right. On 24eTax the return builds itself from your billing, and the Free plan covers billing for up to 50 invoices a month. See pricing.
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