GST Return Filing in Mumbai
Mumbai contributes over 20% of India's GST — the highest of any city. BFSI, media, D2C, real estate and export houses across BKC, Andheri and Powai file the largest per-taxpayer 3B liabilities in the country, making reconciliation and notice defence non-negotiable.
- Monthly filers in Mumbai: GSTR-1 by the 10th, GSTR-3B by the 20th, GSTR-9 & 9C by 31 December.
- Late filing invites ₹50/day late fee (₹20/day for nil returns) plus 18% p.a. interest on tax due.
- ITC is locked to GSTR-2B — a missed vendor invoice from Mumbai means ITC is lost until the next month's 2B.
- E-invoicing is mandatory for Mumbai taxpayers with turnover above ₹5 crore.
- Taxpex files every return 3 days early, CA-signs the acknowledgement and defends notices on filed periods for free.
Definition
GSTR-1
Definition
GSTR-3B
Definition
GSTR-2B
Definition
CMP-08
GST return filing volume in Mumbai
Mumbai CGST Zone spans 5 commissionerates and clears over 90 lakh GSTR-3B filings annually.
Returns filed monthly for Mumbai taxpayers
| Return / form | Frequency | Local nuance |
|---|---|---|
| GSTR-1 | Monthly / Quarterly (QRMP) | Mumbai B2B-heavy taxpayers should file monthly for uninterrupted buyer ITC. |
| GSTR-3B | Monthly / Quarterly | Due 20th (monthly). QRMP filers under 27 follow the 22nd/24th slab. |
| GSTR-9 / 9C | Annually (31 Dec) | Mumbai taxpayers above ₹2Cr turnover file GSTR-9; 9C reconciliation kicks in above ₹5Cr. |
| CMP-08 / GSTR-4 | Quarterly / Annually | Composition dealers across Maharashtra file CMP-08 (18th) and GSTR-4 (30 June). |
| ITC-04 / RFD-01 | As applicable | Job-work and export-refund filings — critical for Mumbai manufacturers and exporters. |
5 filing rules every Mumbai business must know
- Maharashtra threshold: ₹40L goods / ₹20L services. Mumbai retail-heavy businesses cross this early.
- BKC and Nariman Point financial-services firms file monthly (never QRMP) to keep buyers on ITC schedule.
- Bhiwandi warehouse operators need separate additional-place entries under the Mumbai GSTIN.
- Andheri media/agency invoices should split creative (SAC 998361) and production (SAC 998385) for correct rate.
- Mumbai commissionerates are strict on RCM on import of services — declare in 3B Table 3.1(d).
Most common GST notices in Mumbai
| Notice | Typical trigger |
|---|---|
| ASMT-10 | E-invoice IRN vs GSTR-1 mismatch — very common in Mumbai |
| DRC-01A | ITC on ineligible expenses (staff welfare, motor vehicles) claimed in 3B |
| GSTR-3A | Non-filing beyond due date — auto-issued by Mumbai commissionerates |
Start monthly GST filing for your Mumbai business
From ₹499/month. CA-led. Filed 3 days before due date. Free notice defence.
How Taxpex files your monthly GST returns in Mumbai
Share invoices, purchase register and bank statement via WhatsApp. Our team maps Mumbai vendor GSTINs to your books.
We download 2B, match against your purchase register, flag mismatches and follow up with vendors before your 3B filing.
Outward supply return filed by the 10th (monthly) or IFF uploaded (QRMP). Buyers in Mumbai and outside get their ITC on time.
Summary return with reconciled ITC, tax paid via challan, filing acknowledgement shared on WhatsApp. Every filing signed off by a Chartered Accountant.
Services Mumbai pair with monthly GST filing
Everything CA-led, priced flat, and tied back to your GSTIN so nothing falls through the cracks.
Monthly GST Returns for Mumbai
GSTR-1, GSTR-3B, IFF, GSTR-9 filed 3 days early with full 2B reconciliation.
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ITR-3 / ITR-4 / ITR-5 with capital gains, presumptive scheme and foreign income handled.
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Cloud books tied to GST returns — invoices, purchases, ITC and P&L reconciled every month.
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ASMT-10, DRC-01A and REG-17 replies drafted by CAs with representation.
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AOC-4, MGT-7 and DIR-3 KYC filed alongside GST — one team, one deadline.
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All industries we serve
GST Return Filing in Mumbai — FAQs
Search or filter by category. Still unsure? A senior CA replies on WhatsApp within minutes.
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People also ask
When do I need reverse GST?+
When a supplier gives you a GST-inclusive price and you need to break it into base + GST for invoicing or ITC reconciliation.
via Reverse GST CalculatorHow is CAGR different from absolute return?+
Absolute return ignores time; CAGR normalises the return to a per-year compounded rate — the standard measure for comparing multi-year returns.
via CAGR CalculatorDo I need GST to register?+
GST is mandatory only if your turnover exceeds the GST threshold. Otherwise PAN is enough.
via MSME / Udyam RegistrationDoes this include processing fees or GST?+
No. Processing fees, insurance, GST on fees and stamp duty are excluded and vary per lender. Add them separately to arrive at the true cost of the loan.
via EMI Calculator