GST Return Due Date Calendar

Missing a GST deadline is expensive in a way that compounds: a late return attracts a per-day late fee, any tax paid late attracts interest, and the input tax credit your own buyers can claim is held up until you file. Yet the single most common reason businesses miss a deadline is simply not knowing the right date, because the GST due-date system is more conditional than people expect. The same return has different deadlines depending on how you file it, and two businesses filing the identical return can owe it on different days.

The biggest source of confusion is the QRMP scheme. Taxpayers with turnover up to ₹5 crore can opt to file GSTR-1 and GSTR-3B quarterly instead of monthly, which moves the deadlines entirely — and, uniquely, the quarterly GSTR-3B due date depends on the state of registration. States and union territories are split into two groups: Category X files GSTR-3B by the 22nd of the month after the quarter, and Category Y by the 24th. On top of that, QRMP filers do not stop paying monthly: tax is still due each month through the PMT-06 challan by the 25th, and businesses that want their buyers to claim credit sooner can upload B2B invoices through the optional Invoice Furnishing Facility by the 13th. Add the composition scheme (CMP-08 quarterly, GSTR-4 annually), the TDS and TCS returns (GSTR-7 and GSTR-8 by the 10th), and the annual returns, and it is easy to see why a quick, reliable lookup matters. This tool encodes the standing statutory dates so you can stop re-deriving them every cycle and see, at a glance, exactly when each return is due and how much time you have left.

Start by choosing the return you need from the dropdown, which groups the forms by type — the regular GSTR-1 and GSTR-3B, the QRMP companion filings, the composition forms, the TDS and TCS returns, and the annual returns. When a return can be filed at more than one frequency, a Monthly / Quarterly toggle appears; choose Quarterly only if you have opted into the QRMP scheme, which is available to taxpayers with turnover up to ₹5 crore.

If you select quarterly GSTR-3B, a state selector appears, because that return’s deadline depends on whether your state falls in QRMP Category X or Category Y. The tool reads your state, tells you which category it is, and applies the 22nd or the 24th accordingly — reusing the same state codes as our GSTIN Validator so the classification is consistent across the GST tools. For every other return the deadline is the same nationwide, so no state is needed.

Finally pick the tax period. For monthly returns that is a month and year; for quarterly returns a quarter and financial year; for annual returns just the financial year. The right-hand panel immediately shows the resolved due date in full, along with a clear status: how many days remain if the deadline is still ahead, that it is due today, or how many days it is overdue if the date has passed. When a return is overdue the panel surfaces a direct link to the GST Late Fee Calculator so you can see the cost and plan the payment. Because CBIC occasionally extends deadlines for specific periods and bars returns older than three years, treat the date as the standing rule and confirm your exact period on the GST portal before relying on it.