GST Compliance Calendar for FY 2026-27: Filing Schedule & Due Dates
GST deadlines can be overwhelming for startups and small businesses.
Avani KagatharaUpdated 5 min read
Table of contents9 sections
GST deadlines can be overwhelming for startups and small businesses. Late filings can lead to penalties, interest, or blocked returns but a clear GST Compliance Calendar for FY 2026‑27 can make GST return filing straightforward and manageable.
In this guide, we’ll explain who needs to file which returns, highlight important regulatory updates, provide a month-wise calendar so you can stay compliant without stress. Staying prepared with a reliable GST calendar helps avoid these issues and ensures a predictable routine for your monthly and quarterly filings.
The type of GST returns you file depends on your registration category and the way your business operates. Your GST profile determines the forms applicable to you. This is based on your turnover, the nature of your supplies and whether you have opted for schemes like QRMP or Composition.
Who Needs to File Which GST Returns?
Here is a quick overview to help you understand which returns apply to your business before you check the due dates.
Taxpayer Type | Returns to File | Frequency |
Regular Taxpayer | GSTR‑1 (outward supplies), GSTR‑3B (summary return), GSTR‑7 (TDS), GSTR‑8 (TCS), Annual Returns (GSTR‑9/9C) | Monthly/Annual |
QRMP Scheme (<₹5 Cr Turnover) | GSTR‑1 (quarterly), GSTR‑3B (quarterly summary), PMT‑06 (tax payment) | Quarterly |
Composition Scheme | CMP‑08 (quarterly statement) | Quarterly |
Non-Resident Taxable Persons | GSTR‑5 | Monthly |
E-Commerce Operators (TCS) | GSTR‑8 | Monthly |
TDS Deductors | GSTR‑7 | Monthly |
Understanding your category is the first step to avoiding mistakes.
Key GST Changes for FY 2026‑27
Before diving into the calendar, here are two major updates every business should know:
Three-Year Filing Window
You only have three years from the due date to file a return.
This applies to all GST returns, including GSTR‑1, GSTR‑3B, GSTR‑4, GSTR‑5, GSTR‑5A, GSTR‑6, GSTR‑7, GSTR‑8, and GSTR‑9.
This change particularly affects businesses that usually catch up on older returns at year-end because delayed filing will no longer be possible.Tip: Don’t let old returns pile up file them before the window closes.
Tip: Don’t let old returns pile up file them before the window closes.
GSTR‑3B Is Locked After Filing
Once you file GSTR‑3B, the liability is locked. Any corrections need to go through GSTR‑1A.
This makes regular reconciliation of your outward supplies more important than ever.
These changes make staying on top of deadlines and reconciliation more important than ever.
Month-Wise GST Compliance Calendar for FY 2026‑27
To make the calendar easier to follow, we have divided it into quarters.
Note that weekend or holiday adjustments may apply, so it’s advisable to always verify the due dates on the GST portal.
APRIL – JUNE 2026 (Q1 FY 26‑27)
Month | Return | Details | Due Date |
April | GSTR‑7 | TDS Deduction | 10th April 2026 |
| GSTR‑8 | TCS (E-commerce) | 10th April 2026 |
| GSTR‑1 | Monthly Outward Supplies | 11th April 2026 |
| GSTR‑1 (QRMP) | Quarterly Return (Jan-Mar) | 13th April 2026 |
| GSTR‑5 | Non-resident taxable persons | 13th April 2026 |
| GSTR-6 | Details of Input Tax Credit | 13th April 2026 |
| GSTR‑3B | Monthly Summary Return | 20th April 2026 |
| GSTR‑3B (QRMP) | Quarterly Summary | For category X states/UT 22nd April 2026, |
| CMP‑08 | Composition Dealer Quarterly Return (Q4 FY 25-26) | 18th April 2026 |
| GSTR‑5A | Summary of outward taxable supplies | 20th April 2026 |
| ITC‑04 | Job-work Return (Half-yearly for >₹5 Cr TO) | 25th April 2026 |
May | GSTR‑7 | TDS | 10th May 2026 |
| GSTR‑8 | TCS | 10th May 2026 |
| GSTR‑1 | Monthly Outward Supplies | 11th May 2026 |
| GSTR‑5 | Non-resident taxable persons | 13th May 2026 |
| GSTR-6 | Details of Input Tax Credit | 13th May 2026 |
| GSTR‑3B | Monthly Summary Return | 20th May 2026 |
| GSTR‑5A | Summary of outward taxable supplies | 20th May 2026 |
June | GSTR‑7 | TDS | 10th June 2026 |
| GSTR‑8 | TCS | 10th June 2026 |
| GSTR‑1 | Monthly Outward Supplies | 11th June 2026 |
| GSTR‑5 | Non-resident taxable persons | 13th June 2026 |
| GSTR-6 | Details of Input Tax Credit | 13th June 2026 |
| GSTR‑3B | Monthly Summary Return | 20th June 2026 |
| GSTR‑5A | Summary of outward taxable supplies | 20th June 2026 |
JULY – SEPTEMBER 2026 (Q2 FY 26‑27)
Month | Return | Details | Due Date |
July | GSTR‑7 | TDS | 10th July 2026 |
| GSTR‑8 | TCS | 10th July 2026 |
| GSTR‑1 | Monthly Outward Supplies | 11th July 2026 |
| GSTR‑1 (QRMP) | Quarterly Return (Apr–Jun) | 13th July 2026 |
| GSTR‑5 | Non-resident taxable persons | 13th July 2026 |
| GSTR-6 | Details of Input Tax Credit | 13th July 2026 |
| GSTR‑3B | Monthly Summary Return | 20th July 2026 |
| GSTR‑3B (QRMP) | Quarterly Summary | For category X states/UT 22nd July 2026, |
| CMP‑08 | Composition Dealer Quarterly Return (Q1) | 18th July 2026 |
| GSTR‑5A | Summary of outward taxable supplies | 20th July 2026 |
Aug | GSTR‑7 | TDS | 10th Aug 2026 |
| GSTR‑8 | TCS | 10th Aug 2026 |
| GSTR‑1 | Monthly Outward Supplies | 11th Aug 2026 |
| GSTR‑5 | Non-resident taxable persons | 13th Aug 2026 |
| GSTR-6 | Details of Input Tax Credit | 13th Aug 2026 |
| GSTR‑3B | Monthly Summary Return | 20th Aug 2026 |
| GSTR‑5A | Summary of outward taxable supplies | 20th Aug 2026 |
Sept | GSTR‑7 | TDS | 10th Sept 2026 |
| GSTR‑8 | TCS | 10th Sept 2026 |
| GSTR‑1 | Monthly Outward Supplies | 11th Sept 2026 |
| GSTR‑5 | Non-resident taxable persons | 13th Sept 2026 |
| GSTR-6 | Details of Input Tax Credit | 13th Sept 2026 |
| GSTR‑3B | Monthly Summary Return | 20th Sept 2026 |
| GSTR‑5A | Summary of outward taxable supplies | 20th Sept 2026 |
OCTOBER – DECEMBER 2026 (Q3 FY 26‑27)
Month | Return | Details | Due Date |
Oct | GSTR‑7 | TDS | 10th Oct 2026 |
| GSTR‑8 | TCS | 10th Oct 2026 |
| GSTR‑1 | Monthly Outward Supplies | 11th Oct 2026 |
| GSTR‑1 (QRMP) | Quarterly Return (Jul–Sep) | 13th Oct 2026 |
| GSTR‑5 | Non-resident taxable persons | 13th Oct 2026 |
| GSTR-6 | Details of Input Tax Credit | 13th Oct 2026 |
| GSTR‑3B | Monthly Summary Return | 20th Oct 2026 |
| GSTR‑3B (QRMP) | Quarterly Summary | For category X states/UT 22nd Oct 2026, |
| CMP‑08 | Composition Dealer Quarterly Return (Q2) | 18th Oct 2026 |
| GSTR‑5A | Summary of outward taxable supplies | 20th Oct 2026 |
| ITC‑04 | Job-work Return (Half-yearly for >₹5 Cr TO) | 25th Oct 2026 |
Nov | GSTR‑7 | TDS | 10th Nov 2026 |
| GSTR‑8 | TCS | 10th Nov 2026 |
| GSTR‑1 | Monthly Outward Supplies | 11th Nov 2026 |
| GSTR‑5 | Non-resident taxable persons | 13th Nov 2026 |
| GSTR-6 | Details of Input Tax Credit | 13th Nov 2026 |
| GSTR‑3B | Monthly Summary Return | 20th Nov 2026 |
| GSTR‑5A | Summary of outward taxable supplies | 20th Nov 2026 |
Dec | GSTR‑7 | TDS | 10th Dec 2026 |
| GSTR‑8 | TCS | 10th Dec 2026 |
| GSTR‑1 | Monthly Outward Supplies | 11th Dec 2026 |
| GSTR‑5 | Non-resident taxable persons | 13th Dec 2026 |
| GSTR-6 | Details of Input Tax Credit | 13th Dec 2026 |
| GSTR‑3B | Monthly Summary Return | 20th Dec 2026 |
| GSTR‑5A | Summary of outward taxable supplies | 20th Dec 2026 |
| GSTR‑9 | Annual Return (FY 25–26) | 31th Dec 2026 |
| GSTR‑9C | Reconciliation (FY 25–26) | 31th Dec 2026 |
JANUARY – MARCH 2027 (Q4 FY 26‑27)
Month | Return | Details | Due Date |
Jan | GSTR‑7 | TDS | 10th Jan 2027 |
| GSTR‑8 | TCS | 10th Jan 2027 |
| GSTR‑1 | Monthly Outward Supplies | 11th Jan 2027 |
| GSTR‑1 (QRMP) | Quarterly Return (Oct–Dec) | 13th Jan 2027 |
| GSTR‑5 | Non-resident taxable persons | 13th Jan 2027 |
| GSTR-6 | Details of Input Tax Credit | 13th Jan 2027 |
| GSTR‑3B | Monthly Summary Return | 20th Jan 2027 |
| GSTR‑3B (QRMP) | Quarterly Summary | For category X states/UT 22nd Jan 2027, |
| CMP‑08 | Composition Dealer Quarterly Return (Q3) | 18th Jan 2027 |
| GSTR‑5A | Summary of outward taxable supplies | 20th Jan 2027 |
Feb | GSTR‑7 | TDS | 10th Feb 2027 |
| GSTR‑8 | TCS | 10th Feb 2027 |
| GSTR‑1 | Monthly Outward Supplies | 11th Feb 2027 |
| GSTR‑5 | Non-resident taxable persons | 13th Feb 2027 |
| GSTR-6 | Details of Input Tax Credit | 13th Feb 2027 |
| GSTR‑3B | Monthly Summary Return | 20th Feb 2027 |
| GSTR‑5A | Summary of outward taxable supplies | 20th Feb 2027 |
Mar | GSTR‑7 | TDS | 10th Mar 2027 |
| GSTR‑8 | TCS | 10th Mar 2027 |
| GSTR‑1 | Monthly Outward Supplies | 11th Mar 2027 |
| GSTR‑5 | Non-resident taxable persons | 13th Mar 2027 |
| GSTR-6 | Details of Input Tax Credit | 13th Mar 2027 |
| GSTR‑3B | Monthly Summary Return | 20th Mar 2027 |
| GSTR‑5A | Summary of outward taxable supplies | 20th Mar 2027 |
If you’d like to understand each return in detail, you can check out our full guide on: 16 Types of GST Returns Your Business Should Be Aware Of. It walks you through the purpose of each form, who needs to file it, and how it fits into your overall GST compliance. |
Staying Ahead of GST Deadlines
GST compliance isn’t as complicated as it looks from the outside. When you break it down into small, timely tasks, it becomes something you can stay on top of without much effort. If you want a hassle-free monthly GST compliance calendar, our experts at LegalWiz can assist you as per your registration type. Our online GST return filing ensures you are always on top of your compliance schedule without having to juggle everything by yourself.
Frequently asked questions
What if I miss a GST due date?
If you miss your GST return due date, you’ll have to deal with penalties and compliance issues. The GST system also adds late fees and interest to push taxpayers to file on time.
How do I know which GST returns I’m supposed to file?
It depends on your business type. Most regular taxpayers file GSTR-1 and GSTR-3B. If you’re on the QRMP scheme, you file GSTR-1 quarterly and pay tax monthly through PMT-06. Composition dealers file CMP-08. A quick look at your GST dashboard will show exactly what applies to you.
Are GST due dates the same across all states?
For most returns, yes the dates are the same everywhere. The only small variation is for QRMP taxpayers, where a few states fall in different categories for GSTR-3B. Apart from that, the deadlines don’t really change from state to state.
Do I still need to file GST returns if I had no sales?
Yes, if you’re registered under GST in India, you still need to file your GST return even when you have no sales, no purchases, and no tax to pay for that period. This is called filing a Nil GST return.
Written by
Avani Kagathara brings order to legal chaos as a Content Writer at LegalWiz.in. Armed with an accounts and audits background, she has a knack for making complex legal topics feel less intimidating. Fair warning: she's equal parts thoughtful analyst and spontaneous free spirit.
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