GSTR-1 எப்படி தாக்கல் செய்வது: படி-படியான வழிகாட்டி
Short answer
GSTR-1 என்பது மாதாந்திர அல்லது காலாண்டு GST return ஆகும், இதில் அனைத்து outward supplies (விற்பனை) புகாரளிக்கிறீர்கள். தாக்கல் செய்ய GST portal-இல் உள்நுழையுங்கள், Returns Dashboard திறங்கள், period தேர்வு செய்யுங்கள், B2B, B2C, export மற்றும் credit/debit-note விவரங்களை சேர்க்கவும் (அல்லது bulk upload செய்யுங்கள்), சுருக்கம் உருவாக்கவும், பின்னர் DSC அல்லது EVC-இல் சமர்ப்பிக்கவும்.
Updated 2026-07-09 · 399Apps · General GST information, not tax advice
How to file GSTR-1 on the GST portal: step by step
You file GSTR-1 online at gst.gov.in. The same steps apply whether you file monthly or quarterly under QRMP.
- 1
Log in to the GST portal
Go to gst.gov.in, log in with your credentials, and open Services → Returns → Returns Dashboard.
- 2
Select the return period
Choose the financial year and the month or quarter, then click "Prepare Online" (or "Prepare Offline" for bulk upload) under the GSTR-1/IFF tile.
- 3
Add your outward supplies, table by table
Enter invoice details: Table 4 (B2B), Table 5 (large inter-state B2C), Table 6 (exports), Table 7 (consolidated B2C), Table 9B (credit/debit notes), Table 12 (HSN summary) and Table 13 (documents issued).
- 4
Upload in bulk (optional)
For high invoice volume, generate a JSON from the GST Offline Tool or your accounting software and upload it instead of keying invoices one by one.
- 5
Generate the summary and preview
Click "Generate GSTR-1 Summary", then open the preview to check totals and fix any errors before you file.
- 6
Submit and file
File with a Digital Signature Certificate (companies/LLPs) or EVC (OTP). Once filed, your B2B values flow into your buyers’ GSTR-2B and auto-populate your own GSTR-3B liability.
What is GSTR-1?
GSTR-1 is a return that captures every outward supply (sale) a GST-registered business makes in a tax period — B2B and B2C invoices, exports, credit and debit notes, and advances. It is the source document that feeds the GST system: the data you report here populates your customers’ input-tax-credit statement (GSTR-2B) and pre-fills your own summary return (GSTR-3B).
Because GSTR-1 drives ITC for your buyers, accuracy matters — a missed or wrong invoice can block your customer’s credit and trigger reconciliation queries.
Who must file GSTR-1 and when (due dates)
Every regular GST-registered taxpayer must file GSTR-1, even for a nil period. Your frequency depends on turnover and the QRMP scheme:
- • Monthly filers: due by the 11th of the following month.
- • Quarterly (QRMP) filers — turnover up to ₹5 crore: GSTR-1 due by the 13th of the month after the quarter.
- • QRMP taxpayers can optionally upload B2B invoices in the first two months of a quarter using the Invoice Furnishing Facility (IFF), due by the 13th.
- • Composition dealers file CMP-08/GSTR-4 instead, not GSTR-1.
Details and documents you need
Before you start, keep your sales invoices, export and SEZ documents, advance receipts and adjustments, and any credit/debit notes for the period ready. You will also need the correct HSN/SAC codes and tax rates for each item, plus the place of supply for inter-state sales so CGST/SGST or IGST is applied correctly.
What happens after you file: GSTR-1A, GSTR-2B and GSTR-3B
After filing, the system locks most fields for the period. If you spot an error, GSTR-1A lets you amend the same period before you file GSTR-3B; otherwise corrections move to the next period’s amendment tables. Your filed B2B data appears in each buyer’s GSTR-2B (their ITC), and your outward-supply liability auto-populates GSTR-3B — so a correct, on-time GSTR-1 makes GSTR-3B faster and cleaner.
Common GSTR-1 filing mistakes to avoid
The most frequent errors are: reporting B2B invoices as B2C (which denies your buyer ITC), using the wrong place of supply (charging CGST/SGST instead of IGST), missing the HSN summary in Table 12, skipping credit/debit notes, and filing after the due date — which attracts a late fee and delays your GSTR-3B.
How 399Apps helps
Nidhi Books (by 399Apps) prepares your GSTR-1 automatically: every GST invoice you raise is tagged with the right HSN, place of supply and tax split, and the app exports a CA-ready GSTR-1 (B2B, B2C and HSN summary) you can upload to the portal — so filing is a review, not a re-entry job.
GSTR-1 தாக்கல் குறித்து அடிக்கடி கேட்கப்படும் கேள்விகள்
GSTR-1 நியமிக்கப்பட்ட தேதி என்ன? +
விற்பனை இல்லாமல் இருந்தாலும் GSTR-1 file செய்ய வேண்டுமா? +
GSTR-1 file செய்த பிறகு திருத்தலாமா? +
GSTR-1 மற்றும் GSTR-3B-க்கு என்ன வித்தியாசம்? +
GSTR-1 தாமதமாக file செய்தால் என்ன ஆகும்? +
GST billing, returns & e-invoicing — done automatically
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