Which GST returns apply to you?
| Taxpayer | Returns |
|---|---|
| Regular | GSTR-1, GSTR-3B (monthly or QRMP), GSTR-9 annually |
| Composition | CMP-08 quarterly, GSTR-4 annually |
| TDS/TCS deductors | GSTR-7 / GSTR-8 |
| Non-resident / ISD | GSTR-5 / GSTR-6 |
Due dates
Late fee and interest
Late fees accrue per day and interest runs at 18% on late tax. Estimate with the calculator and read how it is calculated.
Reconciliation routine
Match GSTR-1 with GSTR-3B and books, and purchases with GSTR-2B every month. See GSTR-1 vs GSTR-3B.
Notices, audits and cancellation
Respond to notices within time (guide) and understand cancellation and revocation.
Free tools for this topic
GST Late Fee & Interest Calculator
Estimate late fee and 18% interest for delayed GSTR-1 and GSTR-3B filing.
Learn more →E-Way Bill Validity Calculator
Find the validity period and expiry of an e-way bill from distance and cargo type.
Learn more →GST Invoice Generator
Create a GST tax invoice with CGST/SGST/IGST, amount in words and print or save it as PDF.
Learn more →All articles in this guide (16)
Returning NRIs to Bengaluru: RNOR, Foreign Assets and Tax Planning
Many NRIs return to Bengaluru for tech careers or startups and need to plan the transition years.
GST Compliance for Startups: A Step-by-Step Guide
Build a simple, repeatable GST compliance routine from registration and invoicing to returns and records.
GSTR-2B Reconciliation Automation With AI: How It Works
How software matches purchase registers to GSTR-2B using fuzzy matching and rules, and how to keep control.
GST Return Filing Made Easy for Startups
Understand GSTR-1, GSTR-3B and annual returns, who files what, and how to avoid late fees and interest.
Monthly GST Compliance Calendar for Kerala Businesses (Category X QRMP Dates)
Kerala falls in the QRMP due-date category where quarterly GSTR-3B is due on the 22nd. Knowing the calendar prevents late fees.
Returning to India: RNOR Status and Tax Planning Checklist
Moving back to India? Use RNOR status wisely, handle foreign assets, accounts and disclosures.
Missed the ITR Deadline? Late Fee, Belated and Revised Return Explained
Late filing fee under section 234F, interest, loss carry-forward and how to file belated or revised returns.
Hosur Industrial Suppliers: GST Across the Tamil Nadu-Karnataka Border
Hosur's industrial belt serves Bengaluru and Tamil Nadu customers, so suppliers deal with inter-state supplies often.
Distributors and Wholesalers in Kerala: GST, E-Way Bill and Digital Order Management
Kerala's FMCG, pharma, bakery and hardware distributors run on salesman order-taking, van delivery and credit collections. GST compliance depends on clean...
GST Compliance Calendar for Karnataka Businesses (QRMP Category X)
Karnataka is in the same QRMP category as Kerala and Tamil Nadu, with quarterly GSTR-3B on the 22nd.
Gulf Returnees to Malappuram: RNOR, Savings and Business Start-up Tax Planning
Returning NRKs often bring savings and start a business. Residential status, foreign income and account conversion matter in the first years.
Foundries and Engineering Units in Belagavi: GST, ITC and E-Way Bill
Belagavi's foundry and engineering cluster supplies auto and machinery makers.
GSTR-1 vs GSTR-3B: Differences, Due Dates and Reconciliation
Understand what each return reports, how they should match and how to fix a mismatch.
GST Late Fee and Interest: How It Is Calculated With Examples
A worked example of late fee and 18% interest on delayed GSTR-3B and GSTR-1, plus ways to limit the damage.
GST Notice Received? Types, Reply Deadlines and What to Do
ASMT-10, DRC-01, REG-17 and show cause notices explained, with a step-by-step response plan.
How to Read GSTR-2B and Claim Input Tax Credit Correctly
GSTR-2B is the basis of your ITC claim. Learn each section, the common mismatches and a monthly reconciliation routine.
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Frequently asked questions
What happens if I do not file GST returns?
Late fees and interest accrue, e-way bills can be blocked and the registration can be cancelled after continuous default.
What is QRMP?
Quarterly Return Monthly Payment: small taxpayers file returns quarterly and pay tax monthly via challan.
Is GSTR-9 mandatory?
For taxpayers above the notified turnover; smaller taxpayers may be exempt or optional per notification.