GSTR-10 final GST return: the three-month deadline after your registration is cancelled

Tomorrow is Sunday, 27 September 2026, and the securities markets are closed for their weekly holiday, so there are no scheduled cash-segment trading sessions or company results to track. That does not empty the calendar. For any business whose GST registration was cancelled or surrendered around late June 2026, Sunday could be the day a statutory clock runs out: Form GSTR-10, the final return under Section 45 of the Central Goods and Services Tax Act, 2017, is due within three months of the date of cancellation or the date of the cancellation order, whichever is later. This watchlist sets out that deadline in full, records where the RBI policy rate sits ahead of the 5-7 October 2026 Monetary Policy Committee meeting, and confirms that no earnings are on the Sunday slate.

The final return is not a routine monthly filing. It is a one-time statement of the stock of inputs, semi-finished goods, finished goods and capital goods held on the day immediately before cancellation takes effect, and it closes the taxpayer's account with the GST system. Miss it and a late fee accrues under Section 47 of the CGST Act, 2017 for every day of delay, so the three-month window is one of the harder deadlines in the indirect-tax calendar to recover from once passed.

Statutory Deadlines

Form GSTR-10 must be filed by any taxable person whose GST registration has been cancelled or surrendered, within three months of the date of cancellation or the date of the order of cancellation, whichever is later (Section 45, CGST Act 2017; India Code). That "whichever is later" test is the part filers get wrong. The three-month count does not always start from the day the registration stopped being effective; where the department issues the cancellation order after the effective date, the clock runs from the order date instead.

Take a taxpayer whose cancellation order is dated 27 June 2026. Three calendar months later falls on 27 September 2026 - tomorrow. A taxpayer who surrendered registration effective 30 June 2026 but received the order only on 15 July 2026 gets the later of the two dates, so the deadline shifts to 15 October 2026. The table below works through the arithmetic that decides which date governs.

Two prerequisites must be cleared before the portal will accept the final return. First, every applicable Form GSTR-1 statement of outward supplies and every Form GSTR-3B summary return up to the effective date of cancellation must already be filed; the system will not let a taxpayer skip straight to GSTR-10 while earlier periods remain open. Second, all tax dues, interest and any late fee for those earlier periods must be paid. Only then does the final return - which reconciles the input tax credit on closing stock against the liability payable on it - become fileable. Businesses carrying unsold inventory should therefore have their closing-stock valuation ready, because the return turns on the working capital tied up in goods held on the cut-off date.

Not everyone with a cancelled registration files GSTR-10. The final return is confined to regular taxpayers. The following registrant types are excluded from the requirement entirely, because their obligations close out through other returns:

If Sunday is your GSTR-10 date and the closing-stock reconciliation is not ready, the practical move is to file rather than default: a late fee attaches from the day after the due date under Section 47 of the CGST Act, 2017, and there is no monthly reset for a one-time return, so the exposure only grows. Composition taxpayers reading this should note they are outside GSTR-10 altogether; their annual filing runs through a different form, so the Sunday deadline does not touch them.

Market Events

With the cash market shut on Sunday, 27 September 2026, the calendar carries no exchange-driven events - no auctions, no settlement cycles, no index rebalancing on the day itself. The macro backdrop, however, is fixed and worth carrying into the new week. The RBI repo rate stands at 5.25%, held unchanged at the Monetary Policy Committee meeting of 3-5 August 2026, which was a unanimous vote and the fourth consecutive pause after the February, April, June and August 2026 reviews. The associated corridor is set at a Standing Deposit Facility rate of 5.00% and a Marginal Standing Facility rate of 5.50%, with the Bank Rate at 5.50%.

The next scheduled trigger is the MPC review of 5-7 October 2026, the outcome of which will be announced on Wednesday, 7 October 2026. At the August meeting the committee revised its FY 2026-27 projections, raising GDP growth by 10 basis points to 6.7% and lowering CPI inflation by 10 basis points to 5.0%, and it retained a neutral stance. Any move at the October meeting would feed through to External Benchmark Lending Rate-linked floating loans within about three months, which is the channel most retail borrowers should watch; the repo rate is the reference against which those loans reset.

Because the repo rate has been on hold for four straight meetings, the interest-rate environment facing systematic investors has been stable through 2026 so far. Investors reviewing recurring contributions ahead of the October review can model outcomes with the SIP calculator or test a one-time deployment with the lumpsum calculator; a rising-income plan can be sketched with the step-up SIP calculator. None of these are forecasts of the 7 October 2026 decision, which remains undecided until the committee votes.

Earnings

There are no company results scheduled for Sunday, 27 September 2026. Indian exchanges do not hold cash-segment trading on Sundays, and listed companies do not convene board meetings to approve financial results on the weekly holiday, so the earnings slate for the day is empty. This watchlist does not publish an earnings calendar it cannot confirm; where no results are on the official schedule, none are listed here.

For readers whose interest in the day is the GST deadline rather than results, the relevant "reporting" event is the GSTR-10 final return itself, which is a filing obligation rather than a market disclosure. The reconciliation it demands - closing-stock value against input tax credit reversible on that stock - is closer to a balance-sheet exercise than an earnings statement, and it is filed once, not quarterly. Businesses that treat advance tax planning and GST closure as part of the same wind-down should keep the two calendars separate, because the GSTR-10 clock is set by the cancellation date, not by the financial year.

FAQ

What is Form GSTR-10 and who has to file it?

Form GSTR-10 is the final return under Section 45 of the CGST Act, 2017. It is filed once by any regular taxable person whose GST registration has been cancelled or surrendered, and it reports the stock of inputs, semi-finished goods, finished goods and capital goods held on the day before cancellation takes effect. Input Service Distributors, non-resident taxable persons, composition taxpayers under Section 10, TDS deductors under Section 51 and TCS collectors under Section 52 are not required to file it.

When exactly is the GSTR-10 deadline?

It is three months from the date of cancellation or the date of the cancellation order, whichever is later. If a cancellation order is dated 27 June 2026, the final return is due by 27 September 2026. Where the department issues the order after the effective date of cancellation, the later date - the order date - starts the three-month count.

What must I do before I can file GSTR-10?

All applicable Form GSTR-1 and Form GSTR-3B returns up to the effective date of cancellation must be filed first, and all tax, interest and late fee for those periods must be paid. The portal will not accept the final return until those earlier filings are complete, because GSTR-10 reconciles input tax credit on closing stock against the liability on it.

What happens if I miss the GSTR-10 due date?

A late fee accrues under Section 47 of the CGST Act, 2017 for every day the final return is filed beyond its due date. Because GSTR-10 is a one-time return, there is no monthly reset - the exposure simply continues to build until the return is filed, so filing late is materially better than not filing at all.

Do composition taxpayers file GSTR-10?

No. Composition taxpayers registered under Section 10 of the CGST Act, 2017 are expressly excluded from the GSTR-10 requirement. Their return obligations on cancellation are handled through a different form, so the three-month GSTR-10 window does not apply to them.

Is any of this affected by the RBI meeting next week?

No. The GSTR-10 deadline is an indirect-tax filing obligation and is unrelated to monetary policy. The RBI Monetary Policy Committee meets on 5-7 October 2026 with the repo rate currently at 5.25%, but that decision affects lending and deposit rates, not GST return dates, which are fixed by the date of cancellation.

Are markets open on Sunday, 27 September 2026?

No. Indian securities exchanges observe a weekly holiday on Sundays, so there is no cash-segment trading and no company results on 27 September 2026. The only dated obligation of note for the day is the GSTR-10 final return for taxpayers whose three-month window closes then.