GSTN Advisory on AATO Amendment Timeline 2026
The GSTN has revised the timeline for amending Aggregate Annual Turnover (AATO) for FY 2025–26. Learn the new July 2026 amendment dates, understand why the change was introduced, and find out how it impacts GST compliance for businesses.
GSTN Revises AATO Amendment Timeline for FY 2025–26 | July 2026 Update
The GSTN Advisory on Revision of Timeline for Amendment of Aggregate Annual Turnover (AATO), 2026, announces a change in the schedule for amending AATO for FY 2025–26 on the GST Portal.
The GST Network (GSTN) has changed the timeline for updating or correcting your Aggregate Annual Turnover (AATO) on the GST Portal for FY 2025–26.
This change is part of a GST Portal upgrade that will automatically update your AATO based on the GST returns you file, reducing the need for manual corrections.
What is AATO?
Aggregate Annual Turnover (AATO) is the total value of your business turnover in a financial year. It includes:
- Taxable sales
- Exempt supplies
- Exports
- Inter-state supplies
However, it does not include GST collected on sales.
Your AATO is important because the GST Portal uses it to determine your eligibility for various GST compliances, such as the QRMP Scheme, e-Invoicing, and other GST-related features.
What's Changed?
Previously, businesses could update or correct their AATO during May every year.
For FY 2025–26, GSTN has moved this amendment window to July 2026.
New Timeline
| Activity | Revised Date |
|---|---|
| AATO Amendment Window Opens | 1 July 2026 |
| Last Date to Amend AATO | 31 July 2026 |
| Verification by GST Officer | 1 August – 15 August 2026 |
Why Has GSTN Changed the Timeline?
GSTN is introducing a new system that will automatically update your Aggregate Annual Turnover whenever you file subsequent GST returns.
This means:
- Less manual work for taxpayers
- Fewer chances of errors
- More accurate turnover records
- Better consistency across the GST Portal
What Should You Do?
If you believe your AATO for FY 2025–26 is incorrect:
- Log in to the GST Portal between 1 July and 31 July 2026.
- Check the turnover displayed on the portal.
- If you notice any errors, submit the necessary corrections.
- Keep supporting documents ready, as your jurisdictional GST officer may review your amendment between 1 August and 15 August 2026.
Vikash
Read about turnover limit rule
Why Is This Important?
Keeping your AATO accurate helps ensure that your business falls under the correct GST compliance category. Incorrect turnover details may affect your eligibility for schemes like QRMP or e-Invoicing and could lead to compliance issues later.
Key Takeaway
- Old amendment period: May (up to FY 2024–25)
- New amendment period: 1 July to 31 July 2026
- GST Officer review: 1 August to 15 August 2026
- Reason for the change: GSTN is upgrading the portal to automatically update AATO based on your GST return filings, making the process simpler and more accurate.
FAQ AATO Amendment in GST
1. What is AATO in GST?
Aggregate Annual Turnover (AATO) is the total value of taxable supplies, exempt supplies, exports, and inter-state supplies made by a business under the same PAN during a financial year. GST collected on invoices is not included in AATO.
2. What is the new AATO amendment timeline for FY 2025–26?
As per the latest GSTN advisory, taxpayers can amend their AATO from 1 July 2026 to 31 July 2026. Applications will be reviewed by the jurisdictional GST officer between 1 August and 15 August 2026.
3. Why has GSTN changed the AATO amendment timeline?
GSTN has upgraded the GST Portal to automatically update AATO after taxpayers file subsequent GST returns. This change aims to reduce manual corrections, improve data accuracy, and maintain consistency across GST records.
4. Who should update their AATO?
Businesses should update their AATO if they find that the turnover displayed on the GST Portal is incorrect for FY 2025–26. Accurate turnover helps determine eligibility for various GST compliances and system-driven features.
5. What happens if my AATO is incorrect?
An incorrect AATO may affect GST-related compliance requirements, including eligibility for schemes such as QRMP or e-Invoicing. It may also lead to discrepancies in GST records, making it important to review and update the turnover within the prescribed timeline.
6. Can I amend my AATO after 31 July 2026?
No. According to the current GSTN advisory, taxpayers can request amendments only during the prescribed window of 1 July to 31 July 2026. Any requests beyond this period would be subject to GSTN's future guidelines or notifications.