Engagement
GST registration and returns for companies, LLPs and startups
Last reviewed 31 October 2026
GST registration, monthly and quarterly returns, annual return, amendments and cancellation for companies, LLPs and startups in Bengaluru.
In short
We register businesses for GST and file their returns every month or quarter, with input tax credit checked against what suppliers have reported before each filing.
When GST registration is needed
| Situation | Registration | Basis |
|---|---|---|
| Supplier of services in Karnataka | Registration: When aggregate turnover crosses ₹20 lakh in a financial year | Basis: Section 22(1), CGST Act |
| Supplier of goods only in Karnataka | Registration: When aggregate turnover crosses ₹40 lakh (not for ice cream, pan masala or tobacco) | Basis: Karnataka Notification 05/2019, from 1 April 2019 |
| Inter-State supply of goods, e-commerce sellers, casual taxable persons, reverse-charge recipients | Registration: Compulsory, whatever the turnover (some e-commerce and inter-State service suppliers are exempted by notification) | Basis: Section 24 |
| Below the limit but clients want a GSTIN | Registration: Voluntary registration | Basis: Section 25(3) |
What we file
| Return | What it reports | When |
|---|---|---|
| GSTR-1 | What it reports: Sales (outward supplies) | When: Monthly by the 11th; quarterly under QRMP by the 13th after the quarter |
| GSTR-3B | What it reports: Summary return and tax payment | When: Monthly by the 20th; quarterly under QRMP by the 22nd for Karnataka, with monthly tax payment |
| GSTR-9 | What it reports: Annual return | When: By 31 December after the year, where applicable |
| GSTR-9C | What it reports: Reconciliation statement | When: Where aggregate turnover exceeds ₹5 crore |
QRMP is open to taxpayers with aggregate turnover up to ₹5 crore.
Other GST work: amendment of registration, cancellation, Letter of Undertaking for exports each financial year, and catch-up of pending returns.
Returns cannot be filed once three years have passed from their due date (sections 37(5), 39(11) and 44(2), inserted by the Finance Act, 2023; enforced on the GST portal from July 2025). If returns are pending, file the oldest first.
How it works
- 1.Registration: send PAN, certificate of incorporation, proof of the principal place of business (rent agreement or NOC, plus a recent utility bill), bank details and the authorised signatory's details. We file GST REG-01 and you complete Aadhaar authentication when the link arrives.
- 2.Each month: share sales and purchase invoices by the agreed date.
- 3.We match purchases with what suppliers have reported, prepare the returns and send you the tax payable before filing.
- 4.After payment we file and send the acknowledgement.
Documents & E-Forms
When to Engage
Typical turnaround: Scoped in the engagement letter.
Frequently Asked
About this engagement