Revocation of cancellation of GST registration is available only when a GST officer cancelled your registration on his own motion. You apply in Form GST REG-21 within 90 days of the cancellation order being served, and a senior officer can extend that by up to 180 days for sufficient cause. Pending returns and dues must be cleared first.
If you surrendered the registration yourself, there is nothing to revoke. This guide covers the dates to check before counting, the returns and payments to clear, the REG-21 steps, and how the officer decides.
Key facts on revoking a cancelled GST registration
Point | Current position |
|---|---|
Who can apply | A person whose registration the proper officer cancelled on his own motion (Section 30, CGST Act, and Rule 23, CGST Rules) |
Form | GST REG-21, filed on the GST portal |
Time limit | 90 days from service of the cancellation order, extendable by up to 180 days for sufficient cause (Rule 23(1), as amended by Notification No. 38/2023-Central Tax, dated 4 August 2023) |
Before filing | Where cancellation was for non-filing: pending returns filed and tax, interest, penalty and late fee paid. Aadhaar authentication in every case |
Officer's decision | REG-22 (revocation) within 30 days of the application, or REG-05 (rejection) after a REG-23 show cause notice |
Your reply to REG-23 | REG-24, within 7 working days of service of the notice |
Can a voluntarily cancelled GST registration be revoked?
No. Section 30 of the CGST Act and Rule 23 allow revocation only where the proper officer cancelled the registration on his own motion. If you applied for cancellation in REG-16 and the officer approved it, REG-21 is not available, and the route back is a fresh application following the GST registration process.
An officer-initiated cancellation follows a fixed path under Rule 22: a show cause notice in REG-17, your reply in REG-18, then either an order dropping the proceedings in REG-20 or a cancellation order in REG-19. A REG-19 you did not ask for is the document that opens the revocation route.
Is revocation the right route for you?
Match your situation to one row. The route in that row is where to start; the rest of this guide explains each step.
Your situation | Route |
|---|---|
You applied for cancellation yourself (REG-16) | Fresh registration; revocation does not apply |
Officer cancelled it, you accept the default, and it is within 90 days of service | Clear returns and dues, then file REG-21 |
Officer cancelled it, and you are between day 91 and day 270 | File REG-21 with a documented reason for condonation of delay |
Officer cancelled it on facts you dispute, within about three months of the order | Examine an appeal under Section 107 before that window closes |
More than 270 days have passed since the order | REG-21 is closed on the portal; take legal advice on remaining options or register afresh |
Which dates decide your revocation deadline?
Three dates matter, and each does a different job. Read all three from the REG-19 order and your portal notices before you count anything.
Date | Where to find it | What it decides |
|---|---|---|
Date of the cancellation order | The REG-19 order | The GST portal counts its 90-day and 270-day windows from this date |
Date the order was served on you | Portal notice, or proof of any other mode of service | Rule 23 counts the 90 days from this date |
Effective date of cancellation | The REG-19 order; it can be earlier than the order date | Which returns you must file, before and after revocation |
When the order was only uploaded on the portal, the order date and service date are usually the same day. If the order reached you later, keep proof of the actual service date. The portal still counts from the order date, so any gap has to be raised with the officer rather than relied on.
The 90-day and 270-day windows for REG-21
Within 90 days, REG-21 goes to the officer on its merits. Between day 91 and day 270, the portal asks for a reason for condonation of delay, and the extension depends on the Commissioner, or an Additional or Joint Commissioner he authorises, accepting that reason in writing. According to the GST portal's revocation manual, the form cannot be filed after day 270.
The extra 180 days are discretionary, not automatic. Rule 23 asks for sufficient cause, so a reason backed by documents, such as medical records or proof that the order never reached you, carries more weight than a general explanation.
Hypothetical example: a REG-19 order is dated and made available on the portal on 12 June 2026. Counting 90 days from that date, the ordinary window closes on 10 September 2026 and the outer limit is 9 March 2027. On 24 September 2026, this taxpayer can file REG-21 only with a condonation request.
The appeal clock runs at the same time
An appeal against the cancellation order under Section 107 of the CGST Act has its own limit: three months from the date the order is communicated, which the Appellate Authority can extend by one month for sufficient cause. In the example above, that is 12 September 2026, or 12 October 2026 with condonation.
Decide which route you are on before the third month ends. Revocation accepts the ground for cancellation and shows it has been fixed. An appeal disputes the order itself, which is the right fight if you were filing returns or the officer relied on a wrong address report. For that route, see our GST notice and appeal support.
Clear returns and dues before you file REG-21
Where the registration was cancelled for not filing returns, Rule 23 bars the application until those returns are furnished and the tax due on them is paid, with interest, penalty and late fee. In practice, that means every return pending up to the effective date of cancellation, filed from the returns dashboard with your existing login.
Check the age of the oldest pending return. A GST return cannot be filed more than three years after its due date (see our guide to types of GST returns), and a barred return can leave the Rule 23 condition impossible to meet on the portal. Take advice before filing REG-21 in that situation.
Revocation also creates a later deadline. Where revocation is granted, returns for the period between cancellation and the revocation order are due within 30 days of that order under Rule 23, so keep the data for that gap ready.
Evidence to attach to REG-21
Document | Why it helps |
|---|---|
ARNs of the returns filed after cancellation | Shows the non-filing ground is cured |
Challans for tax, interest and late fee | Shows the dues under Rule 23 are paid |
The REG-17 notice, your REG-18 reply (if any) and the REG-19 order | Lets the officer see the original ground and your response |
Current proof of the business address, such as a rent agreement and electricity bill | Answers an address-related cancellation ground |
Documents supporting the condonation reason | Needed only if you are past day 90 |
How to file REG-21 on the GST portal
The steps below follow the GST portal's revocation manual.
Log in to the GST portal with your existing credentials.
Complete Aadhaar authentication or upload e-KYC documents if prompted; the form does not open until you do.
Go to Services > Registration > Application for Revocation of Cancelled Registration.
If you are past day 90, enter the reason for condonation of delay.
Enter the reason for revocation: what caused the cancellation and what you have fixed.
Attach the supporting documents, including return ARNs and challans.
Tick the verification box, select the authorised signatory and enter the place.
Submit with DSC or EVC, and note the ARN.
You can then track the application by ARN in the same way as a registration application.
What happens after you file REG-21
The officer either revokes the cancellation by an order in REG-22 within 30 days of receiving the application, or issues a show cause notice in REG-23 before any rejection. You reply in REG-24 within seven working days. The officer then decides within 30 days of your reply, by a REG-22 order or a rejection order in REG-05.
A REG-05 rejection is an order you can appeal under Section 107. Once REG-22 is issued, the GSTIN is active again; file the returns for the gap period within 30 days and restart tax invoicing only after the portal shows the registration as Active.
Have your cancellation order and return backlog reviewed before the deadline runs out. Talk to Ankush's team about GST revocation services at ComplyLocal →
