This blog exists for one reason: to ensure you do not miss the most important deadline in GST litigation history.
For 7 years, businesses with adverse GST demand orders had no second-appeal forum. The First Appellate Authority’s decision was, for practical purposes, final-unless you had the resources to approach the High Court. GSTAT’s launch in September 2025 opened the second-appeal door. The 30 June 2026 deadline is the last day that door stays open for old orders.
This guide is specifically for business owners, CFOs, and in-house accountants who need to determine whether they have orders that qualify, what the filing requirements are, and how to prioritise their resources over the next 88 days.
The Legal Framework: Where the Deadline Comes From
Section 112(1), CGST Act: Any person aggrieved by an order of the Appellate Authority under Section 107 or the Revisional Authority under Section 108 may appeal to the Appellate Tribunal within 3 months from the date of the order (6 months for departmental appeals). An additional 3 months may be condoned for sufficient cause.
The GSTAT gap (2017-2025): GSTAT was constituted with retrospective effect from 1 September 2023 but did not become operational until 24 September 2025. During this 7-year gap, the 3-month limitation for filing GSTAT appeals did not run because GSTAT did not exist as a functional forum. Multiple High Courts (including the Madras and Calcutta HCs) stayed limitation periods for GSTAT appeals during this period.
Notification S.O. 4220(E) dated 17 September 2025: The Central Government notified that for all orders communicated before 1 April 2026, the deadline to file GSTAT appeals is 30 June 2026. This notification was issued on the recommendation of the 56th GST Council.
Rule 123, GSTAT Procedure Rules, 2025: The GSTAT President used Rule 123 to create a staggered filing schedule (5 phases from September 2025 to March 2026) to prevent portal overload. The staggered restriction was subsequently lifted by Order No. 315/2025 dated 16 December 2025. From that date, all appeals can be filed without phase restriction. The 30 June 2026 outer deadline remains.
Who Must File: The Complete Checklist
You must file a GSTAT appeal before 30 June 2026 if ALL of the following apply:
- You received an order from the First Appellate Authority (Commissioner of Central Tax Appeals / Commissioner of State Tax Appeals) under Section 107 of the CGST Act, OR an order from the Revisional Authority under Section 108.
- The order was communicated before 1 April 2026.
- The order is adverse to you (fully or partially-even a partial confirmation of the demand is appealable for the confirmed portion).
- You want to challenge the order on facts or law (GSTAT has full factual evaluation power per the Sterling & Wilson precedent, 14 February 2026).
You do NOT need to file by 30 June 2026 if:
- Your order was communicated on or after 1 April 2026 (normal 3-month limitation applies)
- You have already filed a writ petition before the High Court and the HC has not directed you to approach GSTAT
- Your dispute was fully resolved at the first appeal (order entirely in your favour)
- Your original demand was less than Rs 50,000 tax (evaluate cost-benefit: 20% pre-deposit + court fee + professional fees may exceed the demand)
Which Orders Qualify: Understanding the Scope
| Order Type | Section | Qualifies for GSTAT? | Deadline |
|---|---|---|---|
| Commissioner (Appeals) order confirming/modifying demand | S.107 | YES | 30 June 2026 |
| Commissioner (Appeals) order rejecting your appeal | S.107 | YES | 30 June 2026 |
| Revisional Authority order | S.108 | YES | 30 June 2026 |
| Original adjudication order (demand order, not yet appealed) | S.73/74 | NO-first appeal to Commissioner (Appeals) required. File S.107 appeal first. | S.107: 3 months from order |
| Advance Ruling order | S.98/99 | NO-advance ruling appeals go to Advance Ruling Appellate Authority, not GSTAT. | N/A |
| Refund rejection (RFD-08) not yet appealed | S.54 | NO-first appeal to Commissioner (Appeals). Then GSTAT. | S.107 first |
| Commissioner (Appeals) order on refund rejection | S.107 | YES | 30 June 2026 |
| Department appeal (Commissioner appealing to GSTAT) | S.112 | YES (department files) | 30 June 2026 (6-month limit for department) |
Critical point: GSTAT is the second appeal. If you have not yet filed the first appeal at Commissioner (Appeals), you cannot skip to GSTAT. File the Section 107 first appeal within 3 months of the original order. If that first appeal has already been decided against you, file at GSTAT by 30 June 2026.
The Filing Process: What You Need to Prepare
Here is the complete checklist for filing a GSTAT appeal. Start preparing now-do not wait until June.
1. Certified copy of the order being appealed. The First Appellate Authority order (or Revisional Authority order). This is the order you are challenging at GSTAT, not the original adjudication order.
2. Appeal memorandum (Form APL-05). Filed online on efiling.gstat.gov.in. Must include: title, details of impugned order (number, date, issuing authority), grounds of appeal (numbered, under distinct heads, with legal citations), prayer (specific relief sought), appellant and respondent details (GSTIN, address, contact).
3. Pre-deposit payment. 20% of the disputed tax amount (cumulative: 10% paid at S.107 stage + additional 10% at GSTAT stage). Pre-deposit is on TAX only-not interest or penalty (except for penalty-only cases from 1 April 2025). Pay via electronic cash ledger or challan. Use our GSTAT pre-deposit calculation (know more) tool.
4. Court fee. Rs 1,000 per lakh of disputed tax/penalty. Minimum Rs 1,000. Maximum Rs 25,000. Pay online through the GSTAT portal.
5. Supporting documents. All invoices, GSTR returns, contracts, correspondence, and evidence supporting your position. Index and organise in a paperbook.
6. DSC or EVC authentication. Digital Signature Certificate or Electronic Verification Code for online filing.
7. Serve copy on respondent. Within 7 days of filing, serve a copy of the appeal on the respondent (the GST officer whose order is challenged). File proof of service on the GSTAT portal.
For the detailed step-by-step filing walkthrough, see how to file a GSTAT appeal (know more).
Pre-Deposit: The Most Misunderstood Requirement
The pre-deposit calculation is the single most common source of errors in GSTAT filings. Here is how it works:
| Component | First Appeal (S.107) | GSTAT (S.112) |
|---|---|---|
| Pre-deposit rate | 10% of disputed tax | Additional 10% (cumulative 20%) |
| Calculated on | Tax amount in dispute (not interest, not penalty) | Same-tax only (not interest, not penalty). Exception: penalty-only cases from 1 April 2025 calculate on penalty. |
| Example: demand Rs 10L tax + Rs 3L interest + Rs 2L penalty | 10% of Rs 10L = Rs 1L | Additional 10% of Rs 10L = Rs 1L. Total cumulative: Rs 2L (20%). |
| If First Appeal reduced demand to Rs 7L | Already paid 10% of Rs 10L | Additional 10% of Rs 7L (now disputed) = Rs 70,000. Not 10% of original Rs 10L. |
| Refundable? | Yes, with interest if appeal succeeds | Yes, with 6% interest if appeal succeeds |
| HC interim deposits | Adjusted against S.107 pre-deposit | Adjusted against cumulative 20% requirement |
Common mistakes: (1) Computing 20% as a fresh amount at GSTAT (incorrect-it is cumulative, so you pay only the additional 10%). (2) Including interest and penalty in the base (incorrect-base is disputed tax only). (3) Not adjusting for amounts already deposited under HC interim orders. (4) Not adjusting for demand reduction at the First Appeal stage.
Timeline: 88 Days to Deadline - Your Action Plan
| When | What to Do |
|---|---|
| Now (April 2026) | Audit ALL first appeal orders received from 2017-2026. Identify which are adverse. Calculate the total disputed tax for each. Prioritise by amount: file the largest demands first. |
| April 15 | Engage CA/advocate for appeals exceeding Rs 5L disputed tax. Begin drafting appeal memoranda for top-priority cases. Collect certified copies of all orders. |
| May 2026 | File all high-priority appeals (Rs 10L+ disputed tax). Pay pre-deposits. Complete portal registration if not done. Prepare paperbooks for all remaining cases. |
| 1-15 June 2026 | File all remaining appeals. Do NOT wait until the last week. Portal will experience heavy traffic from 20 June onwards. |
| 16-28 June 2026 | Final filing window. Expect portal slowdowns. Have backup documentation ready for manual filing application if portal fails. |
| 30 June 2026 | ABSOLUTE LAST DAY. File by 11:59 PM. After midnight, the right is permanently extinguished for all pre-April 2026 orders. |
| 1 July 2026 | For orders communicated on/after 1 April 2026: normal 3-month limitation applies. No transitional deadline. |
What Happens If You Miss the Deadline
This section is important because many business owners assume there will be an extension. Based on the legal framework and Supreme Court precedent, an extension is extremely unlikely:
No extension mechanism exists. The 30 June 2026 deadline is set by Central Government notification (S.O. 4220(E)) and the 56th GST Council recommendation. Changing it requires a new Council recommendation and a fresh notification. No GST Council meeting has discussed extension as of April 2026.
No condonation beyond statutory limit. The Supreme Court in Singh Enterprises held that neither an authority nor a court can extend limitation beyond the statutory condonable limit. The Supreme Court in Glaxo Smithkline held that High Courts cannot use Article 226 to override statutory limitation. Note: the Calcutta HC in S.K. Chakraborty took a different view where the Limitation Act was not expressly excluded-but this is a minority position that should not be relied upon for planning purposes.
Demand becomes final and enforceable. Once the appeal right is extinguished, the First Appellate Authority’s order becomes final. The department can initiate recovery under Section 79: attachment of bank accounts, recovery from debtors, attachment of movable/immovable property, or arrest and detention (in extreme cases of non-cooperation).
Working capital impact. The full demand (tax + interest + penalty) becomes payable. Interest continues to accrue from the original due date. For a 2019 demand of Rs 10 lakh tax with 18% interest, the interest alone by July 2026 would be approximately Rs 12.6 lakh-more than the original tax.
Cost-Benefit Analysis: Should You File?
Not every adverse order is worth appealing. Here is the framework our team uses:
| Factor | File the Appeal | Consider Not Filing |
|---|---|---|
| Disputed tax amount | Above Rs 2 lakh-appeal cost is justified relative to the demand. | Below Rs 50,000-pre-deposit + court fee + professional fees may exceed the demand. |
| Merit assessment | Strong factual/legal grounds. New evidence available. First appeal did not properly evaluate facts. | Weak case. Facts clearly against you. No new evidence or legal argument. |
| Interest accumulation | Large principal with high interest: filing stops further practical impact on credit rating. | Small amount where interest is manageable even if appeal fails. |
| Compliance impact | Demand affects GSTIN status, refund eligibility, or vendor qualification. | Demand is isolated, no compliance impact beyond payment. |
| Cash flow | 20% pre-deposit is manageable. Remaining 80% stays with you during appeal. | 20% pre-deposit creates cash flow stress. Consider whether partial payment + closure is cheaper. |
For a Rs 10 lakh demand: pre-deposit is Rs 1 lakh (additional 10%), court fee Rs 10,000, professional fees Rs 25,000-40,000. Total filing cost: approximately Rs 1.35-1.5 lakh. If you win, you recover Rs 1 lakh pre-deposit + 6% interest + the demand is cancelled. If you lose, you owe the remaining Rs 8 lakh + interest. The calculus depends entirely on merit.
Special Situations
1. Orders without ARN/CRN in the GSTN system.
For appeals filed manually (APL-01/APL-03) or revisional notices (RVN-1) that do not have an Application Reference Number or Case Reference Number in the GSTN system, the GSTAT filing window is open from 31 December 2025 (midnight) to 30 June 2026. These cases need to be filed by referencing the manual order details on the GSTAT portal.
2. High Court writ petitions filed during the GSTAT gap.
If you approached the HC by writ petition because GSTAT was non-operational, the HC may direct you to withdraw the petition and approach GSTAT now that it is functional. Many HCs are disposing of GST writ petitions with directions to file at GSTAT. If the HC has not yet directed you, seek clarity from your advocate on whether to continue the HC proceedings or file at GSTAT (the 30 June deadline applies to GSTAT filings).
3. Departmental appeals against orders in your favour.
The department (Commissioner) can also appeal to GSTAT against First Appellate orders that went in the taxpayer’s favour. The department’s limitation is 6 months from the order date or 30 June 2026, whichever is later. If the department files against you, you will receive notice from GSTAT and can file a cross-objection within 45 days.
4. Orders from GST notice response (know more) proceedings.
If you received a GST demand notice (DRC-01/DRC-07), responded, received an adjudication order (S.73/74), appealed to Commissioner (Appeals) under S.107, and received an adverse order-that adverse S.107 order is what you appeal at GSTAT by 30 June 2026. If the adjudication order has not yet been appealed under S.107, file the S.107 appeal first (3-month limitation from the order).
Key Takeaways
The 30 June 2026 deadline is the single most important date in GST litigation. It applies to ALL First Appellate and Revisional Authority orders communicated before 1 April 2026. Missing it permanently extinguishes the appeal right-no extension, no condonation, no HC relief.
88 days remain as of 3 April 2026. Start now: audit all adverse orders, prioritise by amount, engage professionals for high-value cases, and file the largest demands first. Do not wait until June-portal congestion is expected.
The pre-deposit is cumulative 20% of disputed tax (10% at S.107 + additional 10% at GSTAT). It is refundable with 6% interest if you win. Court fee is Rs 1,000/lakh (cap Rs 25,000). Filing is 100% online at efiling.gstat.gov.in.
For demands below Rs 50,000, evaluate cost-benefit before filing. For demands above Rs 2 lakh with reasonable merit, the filing cost is justified. For demands above Rs 10 lakh, professional representation is essential.
Special situations-manual orders without ARN, HC writ petitions, departmental cross-appeals, and pending S.107 first appeals-each have specific handling requirements. Do not assume a one-size-fits-all approach.
Need Help Filing Before the Deadline?
With 88 days remaining, every day counts. Our team handles GSTAT appeal preparation and filing across all 32 benches: merit assessment, pre-deposit calculation, appeal memorandum drafting, document preparation, filing, and hearing representation.
Explore our GSTAT appeal filing (know more) service. For pre-deposit computation, use our GSTAT pre-deposit calculation (know more) tool.
For queries, reach out at +91 945 945 6700 or WhatsApp us directly.
