2026 guide to restoring a revoked GST registration โ section 30 of the CGST Act, FORM GST REG-21, timeline, pre-conditions and appeal options.
Restoring Revoked GST Registration
If the proper officer has cancelled your GST registration under section 29 of the CGST Act, 2017, you have a defined โ and strictly time-bound โ right to apply for revocation under section 30. The application is filed in FORM GST REG-21 on the GST portal, and the statutory window is 90 days from the date of service of the cancellation order, extendable by the Commissioner in genuine hardship cases. To succeed, you must first clear all pending returns, pay outstanding tax, interest, and late fees in full, and demonstrate genuine compliance intent to the proper officer. This guide gives you the exact steps, forms, timelines, cost calculations, and common failure points you need to act decisively.
Why GST Registrations Get Cancelled in 2026
Understanding the ground for your specific cancellation matters because it shapes your revocation strategy and the evidence you need to gather. Section 29 of the CGST Act specifies the following cancellation triggers:
- Non-filing of returns for six consecutive months โ the most common reason in 2026, typically triggered after the officer issues a show cause notice in FORM GST REG-17 and the taxpayer fails to respond or comply.
- Non-filing for two consecutive quarters under the composition scheme (section 29(2)(b)).
- Non-functioning at the declared principal place of business โ confirmed after a physical inspection by or under the direction of the proper officer.
- Issue of invoices without actual supply of goods or services โ fake invoicing, which is treated most seriously and can attract proceedings under section 122 in addition to cancellation.
- Violation of conditions of registration โ including composition scheme conditions and anti-profiteering provisions.
- Voluntary cancellation applied for by the taxpayer โ where the taxpayer has filed for cancellation but the order has not yet been issued, you can withdraw the application before the final order is passed.
- Obtaining registration by fraud, wilful misstatement, or suppression of facts โ the officer can cancel the registration retrospectively from the date it was granted.
For returns-based cancellations โ the dominant category โ the standard sequence is: defaults accumulate โ REG-17 show cause notice issued โ reply window missed or unsatisfactory โ cancellation order passed. If you missed the REG-17 stage, you are now on the revocation track, which is a separate and more demanding process.
The 90-Day Window You Cannot Afford to Miss
How Section 30 Works
Section 30(1) of the CGST Act gives any registered person whose registration has been cancelled by the proper officer (as distinct from voluntary cancellation) the statutory right to apply for revocation. The deadline is 90 days from the date of service of the cancellation order.
"Date of service" is the date the order is communicated to you โ typically via the email address on record with the GST portal and simultaneously visible on the portal under Services > User Services > View Notices and Orders. If you are logging into the portal after a long gap, check this section before anything else. The 90-day clock runs from that date, not from when you noticed the order or when your accountant informed you.
Extension of the Revocation Window
If you miss the initial 90 days due to genuine hardship, section 30 read with rule 23 of the CGST Rules, 2017 provides for the following:
- Additional 90 days โ on application to the Commissioner (or Additional / Joint Commissioner as the Board may delegate), showing sufficient cause for the delay.
- Further period in exceptional circumstances โ at the Commissioner's discretion, where extraordinary hardship is demonstrated.
In practice, extensions are granted for verifiable medical emergencies, natural calamities, documented non-receipt of the original order, or prolonged litigation. A bare assertion of "I was unaware" without corroborating evidence is rarely accepted at this stage. Document the reason carefully โ attach hospital records, disaster certification, or an affidavit where appropriate.
If the extended window also lapses, fresh registration under section 25 is your only option. Your original GSTIN cannot be revived. Any ITC accumulated prior to cancellation that was neither utilized nor reversed correctly creates a separate compliance issue requiring professional advice.
Before You File REG-21: The Non-Negotiable Pre-Conditions
Filing REG-21 before completing these steps will either be blocked by the portal or result in prompt rejection by the officer. Treat this as a sequential checklist.
1. File All Pending Returns Up to the Effective Date of Cancellation
The GST portal system performs an automated check and will not accept a revocation application if any return is outstanding. This includes:
- GSTR-1 (outward supplies) โ due 11th of the following month for monthly filers; quarterly for QRMP filers
- GSTR-3B (summary return with tax payment) โ due 20th for taxpayers with AATO above Rs. 5 crore; 22nd or 24th for QRMP category filers depending on state grouping
- GSTR-9 (annual return) โ due 31st December following the close of the financial year, for taxpayers to whom it applies
- CMP-08 and GSTR-4 if you were registered under the composition scheme
- Any other return specific to your registration type (e.g., ISD return, TDS/TCS returns)
Even nil returns โ periods with zero turnover โ must be filed. The portal treats an unfiled nil return identically to an unfiled return with liability for the purpose of this pre-condition.
2. Pay All Tax, Interest, and Late Fees in Full
There is no partial compliance option at the revocation stage. The officer will verify the electronic cash ledger and electronic liability register before approving FORM GST REG-22.
- Interest is payable at 18% per annum on outstanding tax from the due date of payment to the actual date of payment, under section 50 of the CGST Act.
- Late fees under section 47 apply at the rate specified and as reduced by prevailing notifications. For non-nil GSTR-3B and GSTR-1 returns, the applicable late fee is currently Rs. 50 per day per return (Rs. 25 CGST + Rs. 25 SGST), subject to turnover-based caps as notified. For nil returns, the late fee is Rs. 20 per day (Rs. 10 CGST + Rs. 10 SGST), capped as notified. Verify the exact cap applicable to your turnover slab on the portal before payment โ these caps have been revised by the GST Council multiple times.
3. Reconcile Books with Portal Data
Before filing, reconcile:
- Sales register vs GSTR-1 vs e-invoice (if your turnover triggers the e-invoicing threshold)
- Purchase register vs GSTR-2B vs ITC claimed in GSTR-3B
- Any ITC reversed under rule 42, rule 43, or section 17(5) for the defaulted period
Discrepancies flagged by the officer during scrutiny of your application can result in a show cause notice in FORM GST REG-23, adding weeks โ sometimes months โ to the process.
4. Demonstrate Physical Functioning at the Declared Premises
If cancellation was on the ground of non-functioning at the declared place of business, gather the following before filing:
- Recent electricity or other utility bills in the business or owner name at that address
- GPS-tagged photographs of the operating premises
- Current rental agreement or property ownership documents
- Bank statements showing ongoing business transactions from a bank account linked to that address
- Staff attendance records, payroll, or employment contracts where available
How to File FORM GST REG-21 โ Step by Step
With all returns filed and dues cleared, follow this sequence on the portal:
- Log in to unknown node with your GSTIN credentials.
- Go to Services > Registration > Application for Revocation of Cancelled Registration.
- The portal displays your cancellation order details. Verify the effective date of cancellation and confirm your 90-day window has not lapsed.
- In the application, provide:
- Reason for seeking revocation โ be specific. State the period, the cause of default, and what you have done to remedy it. "Returns for April 2025 to September 2025 could not be filed due to change of accounting staff; all returns are now filed as of [date] and dues paid via Challan [CIN]" is far more useful than "inadvertent oversight."
- Compliance details โ list the return periods filed, the ARN (Acknowledgement Reference Number) for each filed return, and the CIN for each tax payment.
- Upload supporting documents: screenshots or PDFs of filed-return acknowledgements, payment challans, and premises evidence if applicable.
- Submit using DSC (Digital Signature Certificate) for companies and LLPs, or EVC (Electronic Verification Code) for proprietorships and partnerships.
- Record the ARN of the REG-21 application โ this is your tracking reference for follow-up.
The application goes to the jurisdictional proper officer in whose ward your GSTIN is registered.
Worked Example: Calculating the Full Cost of Revocation
Scenario: ABC Enterprises is a proprietorship firm in Delhi with an AATO of approximately Rs. 48 lakh. It failed to file GSTR-3B and GSTR-1 for six consecutive months โ April 2025 to September 2025 โ following a dispute with its accountant. The proper officer issued a cancellation order on 20 October 2025. The proprietor logs into the GST portal on 5 January 2026 and decides to apply for revocation.
Step 1 โ Confirm the window. Cancellation order served: 20 October 2025. Ninety-day deadline: 18 January 2026. Thirteen days remain. Tight, but workable if action is immediate.
Step 2 โ Late fees (illustrative, subject to prevailing notifications).
| Return | Months Pending | Late Fee Cap per Return | Total |
|---|---|---|---|
| GSTR-3B | 6 | Rs. 2,000 | Rs. 12,000 |
| GSTR-1 | 6 | Rs. 2,000 | Rs. 12,000 |
| Total late fees | |||
| Rs. 24,000* |
*For AATO up to Rs. 1.5 crore, as per prevailing notifications. Confirm current cap on the portal.
Step 3 โ Interest on tax dues.
- Average monthly GST liability: Rs. 40,000
- Cumulative outstanding tax: Rs. 2,40,000
- Interest at 18% per annum on a staggered basis across 6 months (average delay ~120 days):
Rs. 2,40,000 ร 18% ร (120 รท 365) โ Rs. 14,235
Step 4 โ Total outflow to restore registration.
| Head | Amount |
|---|---|
| Tax dues (CGST + SGST) | Rs. 2,40,000 |
| Late fees (GSTR-1 + GSTR-3B) | Rs. 24,000 |
| Interest (approximate) | Rs. 14,000 |
| Total to clear before REG-21 | Rs. 2,78,000 |
ABC must load Rs. 2,78,000 into its Electronic Cash Ledger, file all six sets of returns (12 individual return filings), and then submit REG-21 โ all within 13 days. This is operationally feasible only if funds are immediately available and the accountant acts the same day. If even one day is lost, consult a GST practitioner about filing a simultaneous extension application.
What Happens After You Submit REG-21
If Revocation Is Approved: FORM GST REG-22
The proper officer must pass an order within 30 days of receipt of the application. If satisfied, the officer issues FORM GST REG-22 โ the revocation order. Your registration is restored to its original GSTIN status and you can immediately issue tax invoices, generate e-way bills, and claim ITC on eligible inward supplies from the date of restoration.
Important: ITC for the period after the effective date of cancellation and before the revocation date is generally not available โ the registration did not legally exist during that gap. If you received supplies in that window and the supplier has already reflected them in their GSTR-1, seek professional guidance on how to handle the reconciliation.
If the Officer Requires Clarification: FORM GST REG-23
Where the officer is not immediately satisfied, they issue a show cause notice in FORM GST REG-23 asking you to show cause why revocation should not be denied. You must file your reply in FORM GST REG-24 within the time stipulated in the notice โ typically 7 to 15 working days.
Your REG-24 reply should directly address the officer's specific concern, attach additional supporting documents, and reiterate the compliance that has been completed. A terse reply invites a rejection.
If Revocation Is Rejected: FORM GST REG-05
If the officer, after reviewing your REG-24, is still not satisfied, the revocation is rejected via FORM GST REG-05. This order will state specific reasons. Read those reasons with care โ they define the grounds on which an appeal can succeed.
Appealing a Rejection Under Section 107
A rejected REG-21 can be challenged before the Appellate Authority (typically the Joint Commissioner or Additional Commissioner, as designated) under section 107 of the CGST Act. Key parameters:
- Time limit: 3 months from the date of the REG-05 rejection order, extendable by 1 month at the Appellate Authority's discretion on sufficient cause shown.
- Pre-deposit: 10% of the disputed tax amount must be deposited before the appeal is admitted. On a Rs. 2,40,000 tax dispute, that is Rs. 24,000.
- Form: FORM GST APL-01, filed online under Services > User Services > My Applications > Appeal to Appellate Authority.
- Strategy: Ground your appeal in factual compliance โ demonstrate that returns are filed, dues are paid, and the business is operational. Document every step of the compliance you completed. Legal arguments challenging officer discretion carry less weight when the factual record is thin.
If the Appellate Authority also rejects the appeal, the next tier is the GST Appellate Tribunal (GSTAT). Benches were being constituted across states through 2025-26; timelines vary significantly by jurisdiction, so check your state's GSTAT bench status before deciding to escalate.
Common Mistakes That Derail Revocation Applications
Paying Tax Without Filing the Return
Tax payment and return filing are distinct acts on the GST portal. Some applicants discharge the tax liability in the Electronic Cash Ledger and then immediately submit REG-21 โ before actually filing GSTR-3B and GSTR-1. The return must show "Filed" status on the portal, not just "tax paid," before the system accepts REG-21.
Neglecting GSTR-1 and Filing Only GSTR-3B
Both returns are mandatory pre-conditions. Officers regularly flag applications where GSTR-3B (the payment return) is current but GSTR-1 (the outward supply detail) is still pending. Both columns must be green on your compliance dashboard.
Writing Vague Revocation Reasons
"Due to inadvertent oversight" or "business difficulties" without any detail invites a REG-23 show cause. Specify the exact period, the documented cause, the person responsible, and the corrective action taken. Attach evidence โ a doctor's certificate, a resignation letter from the outgoing accountant, a bank statement showing the period of financial stress.
Waiting to File REG-21 Until the Full Compliance Is "Perfect"
If you are within the 90-day window but close to the deadline, file REG-21 with whatever compliance is done and supplement through the REG-24 reply stage. Missing the 90-day window while "getting everything in order" is an unrecoverable error.
Leaving IGST Dues Unpaid
For businesses making inter-state supplies, IGST dues are separate from CGST and SGST. Officers have rejected revocations where CGST and SGST were fully cleared but an IGST liability remained outstanding. Check all three ledgers before submitting.
Failing to Update Registered Contact Details
If the cancellation order was despatched to an email address that is no longer active, you may genuinely miss it. Update your registered email and mobile through FORM GST REG-14 (core field amendment) if your contact details have changed, and check the portal periodically regardless.
Preventing Re-Cancellation: The Operational Discipline
Once your registration is restored, the compliance structure you build in the following 90 days determines whether cancellation is ever a risk again.
- Recurring calendar reminders: GSTR-1 preparation by the 9th (filing deadline the 11th); GSTR-3B payment by the 18th (deadline the 20th); GSTR-2B reconciliation immediately after the 14th each month.
- Designated compliance owner with a backup: One person is accountable for GST filings. A named backup โ internal staff or an external CA โ can file if the primary person is unavailable. Accountant transitions are the single most preventable cause of default.
- Maintain a standing Electronic Cash Ledger balance: Keep at least one month's average GST liability pre-loaded. This eliminates the "funds not available at filing time" problem that leads to perpetually delayed payments.
- Monthly three-way reconciliation: Match your sales register to GSTR-1 to e-invoice data; match your purchase register to GSTR-2B to the ITC claimed in GSTR-3B. Catching a discrepancy in Month 1 takes 30 minutes to resolve. Catching it in Month 7 during a cancellation proceeding can take months.
- Respond to every portal notice within 15 working days: ASMT-10 scrutiny notices, DRC-01 demand notices โ even if the demand appears erroneous, acknowledge and reply formally. Silence is treated as admission. Unresolved notices are a direct pathway back to REG-17.
- File GSTR-9 by 31 December: Non-filing of the annual return is itself a prescribed default for taxpayers to whom it applies. Keep it in your year-end calendar as a hard deadline, not an optional exercise.
Key Takeaways
- Section 30 of the CGST Act gives you 90 days from the date of service of the cancellation order to apply for revocation in FORM GST REG-21, with a possible Commissioner extension of a further 90 days on genuine cause.
- All pending returns โ GSTR-1, GSTR-3B, and any others applicable โ must show "Filed" status on the portal, and all tax, interest, and late fees must be cleared, before the application is accepted.
- The proper officer has 30 days to approve (REG-22), query (REG-23), or reject (REG-05) your application from the date of receipt.
- The total cost of restoration can be material โ in a 6-month default scenario with Rs. 40,000 monthly GST liability, expect Rs. 24,000 in late fees and Rs. 12,000โ15,000 in interest on top of the principal tax due.
- A rejected revocation can be appealed before the Appellate Authority under section 107 within 3 months of rejection, with a 10% pre-deposit of the disputed tax.
- The 90-day clock runs from the date of service of the order, not from when you discover it โ check Services > User Services > View Notices and Orders on the GST portal regularly, even in periods of inactivity.
- If the revocation window has lapsed entirely, fresh registration is the only route โ but the prior cancellation history is visible to the system and to future officers, making disciplined compliance after fresh registration even more important.





