GSTR 1

What Is GSTR 1?

GSTR 1 is a crucial GST form where businesses report their sales and outgoing supplies for a specific month or quarter. Essentially, it's a summary of all the goods and services a business has sold during that period. This form is one of around 15 different GST return forms but it's especially important because it captures the details of a company's sales. Regular dealers must fill out this form to ensure accurate tax reporting and compliance with GST regulations.

When Is GSTR 1 Due?

Due dates for GSTR 1 filings depend on the total sales of your business. If your revenue reaches up to Rs. 5 crore, you can choose to submit quarterly returns through the QRMP scheme, with deadlines falling on the 13th of the month following the respective quarter. However, if you do not opt for the QRMP scheme or if your sales exceed Rs. 5 crore you must file your returns monthly with the due date being the 11th of the following month.

Eligibility Criteria For Filing GSTR-1

GSTR-1 is the return used to report outward supplies (sales) made by a GST-registered person during a tax period. In simple terms, if you are registered under GST and you make taxable outward supplies, you will usually need to file GSTR-1, subject to your filing category.

You are generally eligible (and required) to file GSTR-1 if:

• You are a regular GST registered taxpayer making outward supplies of goods or services.
• You are registered under the QRMP scheme (Quarterly Return Monthly Payment) — in which case GSTR-1 is typically filed quarterly, while certain outward supply details may be reported monthly through the IFF, where used.
• You are a taxpayer with outward supplies including B2B invoices, B2C sales, exports, and supplies to SEZ, as applicable.
• You need to report credit/debit notes issued during the period.

However, GSTR-1 generally does not apply to:

• Composition scheme taxpayers (they follow a different compliance route).
• Input Service Distributors, who file separate returns relevant to ISD.
• Certain other categories notified under GST rules, depending on the return framework applicable to them.

A practical way to think about it: if you are reporting sales invoices under GST, GSTR-1 is usually the primary route.

How To File GSTR 1?

1. Log in: Use your user ID and password to log in to the GSTN portal.
2. Go to Returns: Navigate to Services and click on Returns.
3. Select Period: Choose the month and year for which you want to file on the Returns Dashboard.
4. Open GSTR 1: Click on GSTR 1 for the selected period.
5. Prepare Returns: You can either prepare the returns online or upload them.
6. Add Invoices: Add your invoices or upload them as needed.
7. Review Details: Make sure all the details are correct.
8. Submit: Click Submit.
9. File GSTR 1: After validation click File GSTR 1.
10. Sign: Digitally sign the form or use E sign.
11. Confirm: Click Yes on the confirmation pop up.
12. Get ARN: Wait for the Acknowledgement Reference Number or ARN to be generated.
 

Filing GSTR 1: What Do You Need To Keep In Mind?

When you file your GSTR 1 which is a part of your GST return there are a few things to remember.

1. Make sure you input the right GSTIN and HSN codes to avoid mistakes.
2. Check if the transaction is within your state or involves other states.
3. You can edit uploaded bills before submission but once it's in you can't change it. You'll have to wait for the next month's filing.
4. You won't be able to revise your return after submission so be accurate.
5. Upload invoices throughout the month to avoid doing it all at once.
6. Some businesses need a digital signature, while others can E sign.
7. If your business's location changes, the applicable taxes might change too.
8. Once the recipient accepts the details, you can't alter the tax invoice. But you can issue a credit note or supplementary invoice for adjustments.
9. There are third party software options available to make filing GSTR 1 easier.

How To Revise GSTR 1?

Once you file a GST return you can't change it. If you make a mistake in your return you can correct it in the return for the next period. For example if you make a mistake in your March 2024 GSTR 1 you can fix it in the GSTR 1 for April 2024 or later.

Last Date For Filing GSTR 1?

Due dates for filing GSTR 1 depend on your total sales:

1. If your sales are up to Rs. 5 crore:

• You can file returns every quarter under the QRMP scheme.
• Due date is the 13th of the month following the quarter.

2. If your sales are more than Rs. 5 crore or you choose not to use the QRMP scheme:

• You must file returns every month.
• Due date is the 11th of the next month.

For Businesses with Turnover More than Rs. 5 Crore

For Businesses with Turnover up to Rs. 5 Crore (QRMP Scheme)

Common Mistakes To Avoid In GSTR-1 Filing

GSTR-1 errors are common because invoice-level reporting leaves little room for ambiguity. The good news is most mistakes are avoidable with basic checks.

Here are frequent pitfalls to watch out for:

• Incorrect GSTIN of the buyer: A single-digit error can lead to mismatches and ITC issues for the recipient.
• Wrong place of supply: This can result in incorrect tax classification (IGST vs CGST/SGST) and reconciliation problems.
• Mismatch in invoice values: Differences between invoice totals and taxable values (or tax amounts) often trigger return mismatches.
• Missing credit/debit notes: Not reporting these can distort turnover and tax liability for the period.
• Duplicate invoice reporting: Uploading the same invoice twice can inflate outward supplies and create unnecessary corrections later.
• Incorrect HSN or rate selection: Even when tax paid is correct, wrong HSN or rate reporting can invite queries or notices.
• Late reporting of amendments: Delayed corrections can keep mismatches unresolved for months and affect counterparties’ records.
• Not reconciling with books: Filing based on partial data instead of reconciling with sales registers increases error risk.

A small habit that helps: reconcile outward supplies between your books, invoice system, and GST portal drafts before filing. It reduces rework, keeps customer ITC smooth, and lowers the chance of follow-up notices.

What Is The GSTR 1 Late Fee And Penalty?

If GSTR-1 is filed after the prescribed due date, late fees apply in clearly defined monetary terms, even if there is no tax payable for the period. Since GSTR-1 captures outward supply details, delays directly affect compliance and downstream input tax credit visibility.

Here’s how the late fee and penalty structure works in practice:

Late Fee for Delayed GSTR-1 Filing

Standard late fee:

• ₹200 per day of delay
  • ₹100 under CGST
  • ₹100 under SGST
• Maximum late fee cap:
  • ₹10,000 per return
    • ₹5,000 CGST + ₹5,000 SGST

The late fee starts accruing from the day after the due date and continues until the return is filed or the maximum cap is reached.

Late Fee for Nil GSTR-1 Returns

If there are no outward supplies for the period:

• Late fee:
  • ₹20 per day of delay
    • ₹10 CGST + ₹10 SGST
• Maximum cap:
  • ₹500 per return

This lower rate applies only when the return is genuinely nil.

Other Compliance Consequences

• No separate interest is charged on GSTR-1 itself, as it is a reporting return.
• However, continued non-filing can lead to notices, scrutiny, or penalties under general GST provisions.
• Delayed GSTR-1 filing can also block recipients’ input tax credit, which may create commercial friction with customers.

In short, while the daily amounts may seem small, delays can add up quickly. Filing GSTR-1 on time avoids unnecessary costs and keeps GST records clean for both you and your counterparties.

Conclusion

GSTR 1 is a key form for businesses to report their sales and outgoing supplies under GST required monthly or quarterly depending on turnover. For turnovers up to ₹5 crore filing can be quarterly by the 13th of the month after the quarter for turnovers above Rs. 5 crore, it's monthly by the 11th of the next month. Accurate details are crucial as corrections can only be made in future returns. Penalties apply for late submissions. To file log into the GST portal prepare and review your returns then submit with a digital or Esignature.