Types of GST Returns — Complete Overview
Every GST-registered taxpayer must file periodic returns reporting their sales, purchases, input tax credit (ITC), and tax payment. Returns are filed on the GST portal (gst.gov.in). The type and frequency of returns depend on your registration type and turnover.
| Return | Who Files | Frequency | Purpose |
|---|
| GSTR-1 | Regular taxpayers | Monthly / Quarterly (QRMP) | Outward supplies (sales invoices) |
| GSTR-3B | Regular taxpayers | Monthly / Quarterly (QRMP) | Summary return — ITC claim & tax payment |
| GSTR-9 | Regular taxpayers (turnover >₹2 crore: mandatory) | Annual | Annual return consolidating all monthly/quarterly returns |
| GSTR-4 | Composition scheme dealers | Annual (+ CMP-08 quarterly) | Annual return for composition taxpayers |
| GSTR-5 | Non-resident taxable persons | Monthly | Returns for foreign businesses supplying in India |
| GSTR-6 | Input Service Distributors (ISD) | Monthly | ITC distribution among branches |
| GSTR-7 | TDS deductors under GST | Monthly | TDS deducted on payments to GST suppliers |
| GSTR-8 | E-commerce operators | Monthly | TCS collected on behalf of suppliers |
QRMP Scheme: Taxpayers with aggregate annual turnover up to ₹5 crore can opt for the Quarterly Return Monthly Payment (QRMP) scheme — file GSTR-1 and GSTR-3B quarterly, but pay GST monthly using Form PMT-06.
GSTR-1 vs GSTR-3B — Key Differences
These two returns are the most important for regular taxpayers. Understanding the difference prevents mismatches and ITC denial notices.
| Feature | GSTR-1 | GSTR-3B |
|---|
| Purpose | Declare all outward supplies (sales) with invoice-level details | Summary of inward + outward supplies, ITC claim, and tax payment |
| What It Contains | B2B invoices, B2C summaries, credit notes, debit notes, export invoices | Aggregate taxable turnover, total ITC, net tax liability |
| Tax Payment | No tax payment — declaration only | Tax is paid while filing GSTR-3B |
| Due Date (Monthly) | 11th of the following month | 20th of the following month |
| Due Date (QRMP) | 13th of month after quarter end | 22nd/24th of month after quarter end* |
| Amendment | Errors corrected in next period’s GSTR-1 | Cannot be amended after filing; correct in next period |
| Impact on Buyer | Auto-populates buyer’s GSTR-2B for ITC claim | Does not directly affect buyer’s ITC |
*QRMP GSTR-3B due dates: 22nd for Category 1 states (northern/central); 24th for Category 2 states (southern/western). Check the GST portal for your state’s category.
Common Mistake: Many taxpayers show higher sales in GSTR-3B than in GSTR-1 (or vice versa). This mismatch triggers automated scrutiny notices from the GST department. Always reconcile GSTR-1 and GSTR-3B before filing.
How to File GST Return Online — Step by Step
The process is the same for GSTR-1 and GSTR-3B. Here is the GSTR-3B filing walkthrough as an example:
Step 1 Log in to gst.gov.in with your GSTIN and password → go to Services → Returns → Returns Dashboard
Step 2 Select the Financial Year and Return Filing Period (month or quarter) → click Search
Step 3 Click Prepare Online (for GSTR-3B) or Upload (for bulk filing via JSON/Excel offline utility)
Step 4 Fill in the tiles: outward supplies (3.1), inward supplies attracting reverse charge (3.2), ITC eligible (4), ITC reversal (4B), exempt/nil/non-GST outward supplies (3.2)
Step 5 Click Save GSTR-3B → system auto-calculates tax liability → offset ITC against liability → pay balance (if any) using Electronic Cash Ledger (add funds via Challan PMT-06)
Step 6 File the return using EVC (OTP on registered mobile) or DSC → ARN generated — return is filed
How to Download GST Registration Certificate
Your GST Registration Certificate (Form REG-06) is available any time on the GST portal. It is not sent by post — you must download it yourself.
Step 1 Log in to gst.gov.in with your GSTIN and password
Step 2 Go to Services → User Services → View/Download Certificates
Step 3 The GST Registration Certificate (Form REG-06) appears → click the Download icon
Step 4 Save the PDF — it contains your GSTIN, legal name, trade name, principal place of business, type of registration, and effective date
| Certificate Contains | Details |
|---|
| GSTIN | 15-digit GST Identification Number |
| Legal Name of Business | As per PAN |
| Trade Name | Business trade name (if different from legal name) |
| Type of Registration | Regular / Composition / Casual / Non-Resident |
| Principal Place of Business | Registered address + state jurisdiction |
| Nature of Business Activity | Manufacturer / Trader / Service Provider etc. |
| Validity | Effective date to “Till Cancelled” (for regular registration) |
Display Requirement: The GST Certificate must be displayed prominently at your principal place of business and at every additional place of business. Non-display attracts a penalty of ₹25,000 under Section 125 of the CGST Act.
GST Portal Not Working — Common Issues & Fixes
If the GST website not working, you are likely one of thousands of taxpayers facing the same issue — especially around filing deadlines when the GST portal (gst.gov.in) gets overloaded. GST website not working errors include portal timeout, login failures, OTP not received, and payment gateway issues. Here are the most common issues and their fixes:
| Issue | Likely Cause | Fix |
|---|
| Portal not loading / timeout | High traffic near filing deadline | Try during off-peak hours (early morning / after midnight); use Chrome in incognito mode |
| OTP not received | Mobile network issue or DND activated | Check DND settings; try “Resend OTP” after 2 minutes; use email OTP option |
| GSTR-1 not saving | Browser compatibility issue | Use Google Chrome (latest version); clear cache and cookies; disable browser extensions |
| ITC mismatch error in GSTR-3B | GSTR-2B not refreshed | Go to GSTR-2B → Request new statement; wait 30 minutes; re-check ITC figures |
| DSC not working | Expired or unregistered DSC | Ensure DSC is registered on GST portal under My Profile → Register/Update DSC |
| Payment not reflecting | Bank processing delay | Wait 24 hours; check Electronic Cash Ledger under Ledgers tab; if not credited, raise grievance on portal |
Pro Tip: Always file GSTR-1 at least 2–3 days before the due date. Portal traffic spikes significantly on the last day and the 20th of each month. The GSTN helpdesk number is 1800-103-4786 (toll-free).
GST Refund Process — When & How to Claim
A GST refund arises when the tax paid exceeds tax liability. Common refund scenarios include exporters (zero-rated supplies), inverted duty structure, and excess tax paid by mistake.
📤 Export Refund (Zero-Rated) — IGST paid on exports or accumulated ITC on exports claimed as refund via RFD-01
🔄 Inverted Duty Structure — when input GST rate > output GST rate, accumulated ITC can be refunded
❌ Excess Tax Paid — wrong GSTIN, excess challan, or double payment — refund via RFD-01
🚫 Cancelled Registration — balance in electronic cash ledger refunded on cancellation
Step 1 Login to GST portal → Services → Refunds → Application for Refund (RFD-01)
Step 2 Select refund type → enter tax period → fill refund details and attach supporting documents
Step 3 Submit with DSC or EVC → ARN generated → application forwarded to jurisdictional officer
Step 4 Officer processes within 60 days → refund credited directly to registered bank account
Time Limit: Refund application must be filed within 2 years from the relevant date (date of export, date of payment, etc.). Late applications are rejected.
GST Amendment — How to Correct Errors After Filing
Errors in GST returns cannot be directly edited after filing. Corrections must be made in subsequent returns or through the amendment process.
| What to Correct | How to Amend | Where |
|---|
| Wrong invoice details in GSTR-1 | File amended GSTR-1 (Table 9A) in the next return period | GSTR-1 → Amended B2B Invoices (9A) |
| Wrong B2C invoice in GSTR-1 | Amend in Table 10 (Amendments to B2C summaries) | GSTR-1 → Table 10 |
| Under-reported sales in GSTR-3B | Show correct (higher) figures in next month’s GSTR-3B and pay differential tax + interest | GSTR-3B of next period |
| Wrong ITC claimed in GSTR-3B | Reverse excess ITC in Table 4(B) of next GSTR-3B + pay interest @ 24% p.a. | GSTR-3B → Table 4(B)(2) |
| Registration details (address, name, contact) | File Amendment Application (REG-14) on GST portal | Services → Registration → Amendment of Registration |
Interest on Corrections: Under-reporting output tax attracts interest @ 18% per annum. Wrong ITC claims attract @ 24% per annum. File corrections promptly to minimise interest liability.
GST Filing Due Dates — 2026 Calendar
| Return | Period | Due Date | Late Fee |
|---|
| GSTR-1 (Monthly) | Each month | 11th of next month | ₹50/day (nil return: ₹20/day); max ₹10,000 |
| GSTR-1 (QRMP) | Each quarter | 13th of month after quarter | ₹50/day; max ₹10,000 |
| GSTR-3B (Monthly, Cat 1 states) | Each month | 20th of next month | ₹50/day (nil: ₹20/day) + interest 18% p.a. |
| GSTR-3B (QRMP, Cat 1) | Each quarter | 22nd of month after quarter | Same as above |
| GSTR-3B (QRMP, Cat 2) | Each quarter | 24th of month after quarter | Same as above |
| GSTR-9 (Annual) | FY 2025-26 | 31 December 2026 | ₹200/day; max 0.5% of turnover |
| CMP-08 (Composition) | Each quarter | 18th of month after quarter | ₹50/day; max ₹2,000 |
Frequently Asked Questions
What is the difference between GSTR-2A and GSTR-2B?
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GSTR-2A is a dynamic statement that updates in real time as your suppliers file their GSTR-1. GSTR-2B is a static monthly auto-drafted statement generated on the 14th of every month showing the ITC available based on GSTR-1/5/6 filed by your suppliers for that period. For claiming ITC in GSTR-3B, always use GSTR-2B as it is fixed and does not change after generation.
Can I file a nil GSTR-3B via SMS?
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Yes. If you have no sales, no ITC, and no tax to pay for the month, you can file a nil GSTR-3B via SMS. Send the following message to 14409 from your GST-registered mobile: NIL <space> 3B <space> GSTIN <space> Tax period (MMYYYY). You will receive a confirmation code; reply with the code to file. This is available for monthly filers only.
What happens if I don’t file GST returns on time?
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Late filing attracts a late fee of ₹50/day (₹25 CGST + ₹25 SGST), capped at ₹10,000 per return. For nil returns, the fee is ₹20/day (₹10 each). In addition, if there is unpaid tax, interest accrues at 18% per annum from the due date. Importantly, failure to file GSTR-1 blocks your buyer’s ITC — which can damage your business relationships.
How do I download my GSTR-3B format / acknowledgement?
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After filing, go to GST portal → Services → Returns → View Filed Returns. Select the return period and return type. Click View → Download Filed Return (PDF). This downloads the GSTR-3B in PDF format with the ARN (Acknowledgement Reference Number) as proof of filing.
Can I revise a GST return after filing?
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No. GST returns cannot be revised once filed. Errors must be corrected in the next period’s return using the amendment tables in GSTR-1 (Tables 9A, 9B, 9C for B2B, B2C, debit/credit notes respectively) or by adjusting figures in the next GSTR-3B with interest payment if there was an under-declaration of tax.
What is the GSTIN format and how do I verify a GSTIN?
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A GSTIN is a 15-character alphanumeric code: first 2 digits = state code; next 10 = PAN; 13th = entity number (for multiple registrations in same state); 14th = Z (default); 15th = check digit. To verify any GSTIN, go to gst.gov.in → Search Taxpayer → Search by GSTIN/UIN. No login required. This also shows the taxpayer’s registration status, principal place of business, and return filing status.