complete guide to
GST in India
15 expert articles on GST registration and return filing for founders, freelancers, and CAs. Registration process, documents, thresholds, GSTR-1/3B/9, composition scheme, penalties, and cancellation — written and reviewed by practicing CAs.
Get Your GSTIN with Shunya →How to register for GST online in India: step-by-step process
Complete walkthrough of GST registration on the GST portal — Form REG-01, Aadhaar authentication, document upload, and how long it takes to get your GSTIN.
Read →GST registration documents required — checklist for proprietorship, partnership, and company
The exact document checklist for GST registration differs by business structure. Complete list for proprietorships, partnerships, LLPs, and Private Limited Companies.
Read →GST registration turnover limit — when is it mandatory?
GST registration is mandatory once turnover crosses Rs 40 lakh (goods) or Rs 20 lakh (services) — and mandatory regardless of turnover for e-commerce sellers and interstate suppliers.
Read →Voluntary GST registration — pros and cons for small businesses
Registering for GST before you're required to can unlock input tax credit and bigger clients, but it also means monthly compliance. Weigh the trade-offs before you apply.
Read →GST registration for e-commerce sellers — special rules
Selling on Amazon, Flipkart, or your own website triggers different GST rules than a typical offline business — mandatory registration regardless of turnover, TCS deductions, and more.
Read →How long does GST registration take, and what causes delays?
A clean GST application is typically approved in 7 working days. Aadhaar authentication failures, document mismatches, and officer queries can stretch this to 30 days or more.
Read →GSTIN application rejected — common reasons and how to reapply
Most GST registration rejections come down to a handful of recurring, avoidable mistakes. Know the common triggers and the correct way to reapply.
Read →Composition scheme vs regular GST registration — which should you choose?
The composition scheme trades input tax credit and interstate sales for a lower, flat tax rate and quarterly-only compliance. Know which model fits your business.
Read →GST registration for freelancers and service providers
Freelancers and consultants cross the GST threshold faster than they expect once export earnings, platform fees, and multiple clients are added up.
Read →Difference between GSTR-1, GSTR-3B, and GSTR-9 — which return to file when
Three different GST returns, three different purposes: GSTR-1 reports your sales, GSTR-3B is your monthly tax payment summary, and GSTR-9 is the annual reconciliation.
Read →GST return filing due dates — monthly, quarterly, and annual calendar
A quick-reference calendar for GSTR-1, GSTR-3B, GSTR-9, and CMP-08 due dates, and how the QRMP scheme changes the monthly cadence to quarterly.
Read →Penalty and late fees for missing a GST return deadline
Late GST returns attract a daily late fee plus 18% annual interest on unpaid tax — and the fee accrues even for a nil return with zero tax liability.
Read →How to file GSTR-3B online — step-by-step
GSTR-3B is the return that actually settles your GST payment. Here's the exact filing sequence, from auto-populated ITC to final submission.
Read →Nil GST return filing — do you still need to file with no sales?
A month with zero sales still requires a GST return. Skipping it doesn't avoid compliance — it just accrues a late fee for no reason.
Read →GST registration cancellation — how and when to cancel your GSTIN
Closing a business, or dropping below the mandatory threshold, means formally cancelling GST registration — not simply stopping filing returns.
Read →Get compliant, the easy way
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