In short: Karnataka is a Category X state for GST return filing, so QRMP-scheme GSTR-3B is due on the 22nd. Its intra-state e-way bill threshold is the standard Rs 50,000 – not raised the way Tamil Nadu’s or Maharashtra’s is. GST registration in Karnataka can require a biometric Aadhaar authentication visit to a GST Suvidha Kendra, a step several other states still don’t apply. And Bengaluru now has two dedicated GST Appellate Tribunal State Benches hearing appeals, with a case-categorisation framework unique to this bench. CA Murli Chandak, FCA and IBBI-Registered Valuer, helps Bangalore businesses register correctly, file on time, protect input tax credit, and respond to notices – with direct access to him, not a rotating desk of articled trainees.
Contents
- GST Registration in Karnataka: Thresholds, Biometric Verification and What Trips Businesses Up
- Return Filing in Bangalore: Monthly Filing vs QRMP, and Karnataka’s Category X Due Dates
- Input Tax Credit: GSTR-2B, IMS and Where Bangalore Businesses Lose Credit
- GST 2.0 and the 2025-26 Changes at a Glance
- E-Way Bill Rules for Karnataka
- GST and Karnataka’s Economy: Why the Scale Raises the Compliance Bar
- GST Notices, Scrutiny and Departmental Audits
- Appeals and the GSTAT Bengaluru Benches
- Beyond Compliance: ESOP, Valuation and Trademark Support for Bangalore Businesses
- Why Bangalore Businesses Work With CA Murli Chandak
- How to Get Started
- Frequently Asked Questions
1. GST Registration in Karnataka: Thresholds, Biometric Verification and What Trips Businesses Up
Karnataka is a normal-category state under GST. A business dealing purely in goods must register once aggregate turnover crosses Rs 40 lakh in a financial year; a business supplying services, or a mixed supplier of goods and services, crosses the line at Rs 20 lakh. Both figures are computed on an all-India, same-PAN basis, and include exempt supplies, exports and inter-state supplies while excluding GST itself and reverse-charge inward supplies.
The exceptions matter more than the headline number. Inter-state supply of goods requires registration from the first rupee. E-commerce sellers must register regardless of turnover if they sell through a marketplace. A Bangalore consultant billing clients across states, or a small manufacturer sending even one inter-state consignment, can trigger the requirement well before Rs 20 lakh or Rs 40 lakh in local turnover.
Karnataka also runs something several states don’t: risk-based applicants can be routed to a mandatory biometric Aadhaar authentication and document verification appointment at a GST Suvidha Kendra (GSK), a process live in the state since 6 September 2024. Where this applies, the promoter or authorised signatory has to appear in person – it isn’t something a consultant can complete on the applicant’s behalf remotely. Knowing in advance whether an application is likely to be routed this way, and having the documents ready for the visit, avoids the registration stalling midway.
Separately, Rule 14A (effective 1 November 2025) lets low-risk applicants – broadly those whose monthly B2B output tax liability will not exceed Rs 2.5 lakh, who complete Aadhaar authentication and meet the promoter conditions – get an auto-approved GSTIN within three working days of the application reference number being generated, instead of the standard seven-to-thirty-day track.
2. Return Filing in Bangalore: Monthly Filing vs QRMP, and Karnataka’s Category X Due Dates
Regular taxpayers file GSTR-1 by the 11th of the following month and GSTR-3B by the 20th, every month. Businesses with aggregate turnover up to Rs 5 crore in the previous year can opt into the Quarterly Return Monthly Payment (QRMP) scheme instead – GSTR-1 (or the monthly Invoice Furnishing Facility) by the 13th after the quarter, and GSTR-3B by the 22nd or 24th of the month following the quarter, depending on the state category.
Karnataka is a Category X state, alongside Maharashtra, Gujarat and Tamil Nadu – so QRMP-scheme GSTR-3B in Bangalore is due on the 22nd, not the 24th used by Category Y states like Delhi and Uttar Pradesh. Tax for the first two months of each quarter is still deposited monthly through Form PMT-06 by the 25th, with the third month’s liability settled when the quarterly GSTR-3B is filed. Late fees are capped by turnover slab – Rs 2,000 up to Rs 1.5 crore turnover, Rs 5,000 up to Rs 5 crore, and Rs 10,000 above that – and nil returns attract Rs 20 per day, capped at Rs 500. None of this can be paid using input tax credit.
Since 1 December 2025, returns unfiled for three years past their due date have become permanently barred from filing, on a phased rollout. A GSTR-1, GSTR-3B or GSTR-9 that crosses that line cannot be filed at all, ever. Bangalore businesses with an old dormant GSTIN, a branch registration, or a stretch of unfiled periods should get those regularised before the window closes.
Not sure whether your input tax credit is fully protected under the new IMS rules?
CA Murli Chandak reviews your GSTR-2B reconciliation, flags at-risk credit, and clears the backlog before it turns into a notice.
3. Input Tax Credit: GSTR-2B, IMS and Where Bangalore Businesses Lose Credit
Input tax credit is claimed against GSTR-2B, the auto-drafted statement generated from what your suppliers report – not your purchase register, and not what you believe you’re owed. If a vendor files late, files incorrectly, or doesn’t file, the credit simply doesn’t appear in your 2B.
The Invoice Management System (IMS), with its credit-note handling rules tightened from October 2025 under GSTN Advisory 628, adds a layer that has to be actively managed. Credit notes issued by suppliers sit in the IMS for the recipient to accept, reject or keep pending, and inaction affects how much ITC eventually flows through to GSTR-3B. For a fast-growing Bangalore services or SaaS business running dozens of vendor relationships, treating IMS as a routine weekly task rather than a quarterly afterthought is what keeps legitimate credit from being reversed or missed.
The other recurring leak is blocked credit under Section 17(5) – motor vehicles, employee catering, club memberships and similar categories – claimed anyway because purchases are coded by expense head rather than by GST eligibility. It’s a basic control, and it’s the one that shows up most often in the notices we see.
4. GST 2.0 and the 2025-26 Changes at a Glance
The last twelve months have brought more structural change to GST than any period since its 2017 launch. The table below is the set that matters most to a Bangalore business right now.
| Change | Effective | What It Means for You |
|---|---|---|
| GST 2.0 rate rationalisation – four slabs collapsed to 5%, 18% and a 40% de-merit rate | 22 Sept 2025 | Re-check output rates on every product/service line and update pricing, contracts and invoicing masters |
| Rule 14A risk-based registration | 1 Nov 2025 | Low-risk applicants (monthly B2B liability up to Rs 2.5 lakh) can get a GSTIN in 3 working days |
| IMS credit-note acceptance rules tightened (Advisory 628) | Oct 2025 | Act on supplier credit notes in the Invoice Management System promptly, or risk an ITC reversal |
| Three-year time bar on filing GSTR-1, 3B, 9 and other returns | Phased from 1 Dec 2025 | Returns unfiled three years past due date become permanently unfileable – clear old backlogs now |
| E-invoicing: 30-day IRP reporting window | Turnover above Rs 10 crore | E-invoices must be reported to the Invoice Registration Portal within 30 days of issue |
| Permanent GSTR-9 exemption below Rs 2 crore turnover | Ongoing | Smaller Bangalore businesses are permanently spared the annual return, not just for one year |
| Second proviso, Section 13(8)(b), IGST Act omitted (Finance Act 2026, s.157) | 30 Mar 2026 | Place-of-supply rule for intermediary services changes; payments to foreign intermediaries may flip toward forward charge |
| GSTAT Bengaluru Benches operational, special 3-category case framework | 1 Aug 2026 (revised roster) | Karnataka GST appeals can be heard locally, with a case allocation structure unique to Bengaluru |
Always confirm the current due date and notification text on the GST portal before filing or paying – CBIC extensions do happen, and this table reflects the position as of the date of this article.
5. E-Way Bill Rules for Karnataka
The national default e-way bill threshold is Rs 50,000, for both inter-state and intra-state movement of goods. Unlike Tamil Nadu, Maharashtra or Delhi – which have all raised their intra-state threshold to Rs 1 lakh – Karnataka keeps the standard Rs 50,000 limit for movement within the state. A Bangalore business used to a supplier or customer relationship in one of those higher-threshold states needs to remember that the moment goods move within Karnataka, the lower Rs 50,000 trigger applies, not the Rs 1 lakh figure it might be used to elsewhere.
Compliance here is largely operational: the invoice or e-invoice, transporter and vehicle details, and the e-way bill need to tie together, and validity periods need to be respected, because errors surface at the worst possible moment – a vehicle held at a check point.
6. GST and Karnataka’s Economy: Why the Scale Raises the Compliance Bar
Karnataka’s projected Gross State Domestic Product for 2026-27 is around Rs 33.06 lakh crore, with services accounting for roughly two-thirds of that output – a reflection of Bangalore’s IT, ITES and startup base. State GST is Karnataka’s single largest source of own tax revenue, budgeted at Rs 91,000 crore for 2026-27, ahead of stamp duty, excise and motor vehicle tax combined. On monthly collections specifically, Karnataka has consistently ranked among the top two or three states nationally through 2025-26, second only to Maharashtra in several months, with double-digit year-on-year growth in some periods driven by its IT, services and manufacturing base.
That scale cuts both ways for a Bangalore business. It means a deep, liquid market of GST-registered counterparties. It also means the state and central GST administrations run data-matching and scrutiny at a scale smaller states don’t see – mismatches between GSTR-1, GSTR-3B and e-way bill data get flagged systematically. Treating GST compliance as a background task rather than an active monthly discipline is a materially bigger risk in a state this closely watched than it is elsewhere.
7. GST Notices, Scrutiny and Departmental Audits
Most GST notices in Bangalore trace back to a mismatch: GSTR-1 versus GSTR-3B, ITC claimed that doesn’t tie back to GSTR-2B, e-way bill values against reported supplies, or a refund claim that looks large relative to turnover. In July 2025, Karnataka’s Commercial Taxes Department drew wide attention by issuing notices to a large number of small traders based on UPI receipt data for FY 2021-22 to FY 2024-25, flagging receipts crossing Rs 40 lakh that had no matching GST registration. The episode was controversial and several notices tied to exempt goods or already-time-barred years were subsequently dropped or clarified – but the underlying method, cross-verifying digital payment data against registration and turnover records, is not going away. It is a preview of how routinely available data will keep being used for detection.
Section 61 scrutiny of returns is the most common formal step; Section 65 departmental audit (with 15 working days’ prior notice) and Section 66 special audit go deeper for a smaller number of taxpayers. Where a genuine shortfall is found, the department proceeds under Section 73 (no fraud alleged) or the considerably harsher Section 74 (fraud, wilful misstatement or suppression), which carries steeper penalties and a longer limitation period. Every notice carries a fixed response window; missing it converts a defensible position into an ex-parte order.
8. Appeals and the GSTAT Bengaluru Benches
The first stop for disputing a GST order remains the first appellate authority – the Commissioner (Appeals) – under Section 107, with a three-month filing window plus a further month condonable for sufficient cause. Karnataka has been allotted two GST Appellate Tribunal State Benches, both at Bengaluru, hearing second appeals (Form APL-05) against both CGST and KGST orders in a single filing. From 1 August 2026, the Bengaluru Benches moved to a case-categorisation structure unique among GSTAT benches nationally – a three-category system rather than the two-category split used elsewhere, splitting classification/ITC/refund matters, recovery/assessment/penalty matters, and a third residual category across dedicated member panels sitting on all working days.
Before this, the only route beyond the first appeal was a writ petition to the Karnataka High Court. For a Bangalore business sitting on an adverse appellate order, GSTAT is now the intended, faster route – appeals are filed electronically through the GSTAT e-filing portal, with physical hearings at the Bengaluru bench itself.
9. Beyond Compliance: ESOP, Valuation and Trademark Support for Bangalore Businesses
GST compliance rarely sits in isolation for a Bangalore business, particularly in a city built around startups, GCCs and equity-funded companies. CA Murli Chandak also works with Bangalore businesses on ESOP design, valuation and tax compliance for companies building out equity-based compensation, share and pre-IPO valuation as an IBBI-Registered Valuer, and trademark protection for businesses building a brand alongside their compliance. Businesses that start with GST often find these adjacent needs – an unvalued option pool, an unregistered brand name – surface naturally in the same conversation.
10. Why Bangalore Businesses Work With CA Murli Chandak
CA Murli Chandak is a Fellow Chartered Accountant (FCA) with over 8 years of practice, and an IBBI-Registered Valuer for Securities or Financial Assets (IBBI/RV/07/2021/14408). Engagements are handled directly by him, not routed through a rotating bench of articled trainees – when you call with a notice or a filing question, you’re speaking to the person who will actually work on it. The practice is built for remote delivery: documents, filings and consultations are handled digitally and over calls, honestly framed as such rather than dressed up with an office address that adds nothing to the quality of the work – and where a Karnataka registration requires an in-person biometric step, that requirement is explained upfront rather than glossed over. Fees are quoted in writing after understanding the scope of what you need; there are no standard published rates, because a single-GSTIN trader and a multi-state services company need genuinely different amounts of work. A fuller professional background is set out separately.
11. How to Get Started
A first conversation is free and typically 30 minutes – enough to understand whether you need registration support, a return-filing cleanup, an ITC health check, or help responding to a notice that has already landed. From there, you get a written scope and quotation before any engagement begins, so there are no surprises once work starts.
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12. Frequently Asked Questions
1. What is the GST registration threshold in Karnataka?
Rs 40 lakh aggregate turnover for businesses supplying only goods, and Rs 20 lakh for service providers and mixed suppliers of goods and services, computed on an all-India basis under the same PAN.
2. Is Karnataka a Category X or Category Y state for QRMP?
Category X. Businesses on the QRMP scheme file their quarterly GSTR-3B by the 22nd of the month following the quarter, not the 24th used by Category Y states.
3. What is the e-way bill limit for movement within Karnataka?
Rs 50,000, the national standard threshold. Karnataka has not raised its intra-state limit the way Tamil Nadu, Maharashtra and Delhi have.
4. Does GST registration in Karnataka require biometric verification?
It can. Risk-based applicants may be routed to a mandatory biometric Aadhaar authentication and document verification appointment at a GST Suvidha Kendra, a process live in Karnataka since September 2024. Where this applies, the promoter or authorised signatory must appear in person.
5. When is GSTR-9 and GSTR-9C due for FY 2025-26?
31 December 2026, subject to any notified extension. Businesses under Rs 2 crore turnover are permanently exempt from GSTR-9; GSTR-9C applies above Rs 5 crore turnover.
6. What happens if I miss a GST return filing for too long?
Since December 2025, returns unfiled for three years past their due date become permanently barred from filing on the GST portal – not just late, but unfileable.
7. How has GST 2.0 changed rates from September 2025?
The GST Council collapsed the earlier four-slab structure into two main slabs – 5% and 18% – with a 40% de-merit rate for select luxury and sin goods, effective 22 September 2025. Most goods previously at 12% moved to 5%, and most goods previously at 28% moved to 18%.
8. What is the Invoice Management System (IMS) and how does it affect my ITC?
IMS is the portal workflow where you accept, reject or hold pending each inward invoice and credit note reported by your suppliers before it flows into your GSTR-2B and, from there, your ITC claim. Credit-note handling was tightened from October 2025.
9. Where do I appeal a Karnataka GST order now that GSTAT is operational?
After the first appeal to the Commissioner (Appeals) under Section 107, the next stop is one of the two GSTAT Bengaluru State Benches, rather than a Karnataka High Court writ petition.
10. Does CA Murli Chandak work with businesses outside Bangalore city?
Yes. Engagements are delivered remotely, so businesses anywhere in Karnataka – and outside the state – are served the same way as those based in Bangalore, aside from any in-person biometric registration step that the GST portal itself requires.
CA Murli Chandak – FCA | IBBI-Registered Valuer (Securities or Financial Assets) | IBBI/RV/07/2021/14408
Website: murlichandak.com
Phone: +91 99985 39902
Email: murlichandak@murlichandak.com
LinkedIn: CA Murli Chandak
Related reading: ESOP Consultant in Bengaluru | Registered Valuer in Bangalore | Trademark Consultant in Bangalore | About CA Murli Chandak
Disclaimer: This article is for general information only and does not constitute professional advice. GST rates, thresholds, due dates and procedures are subject to change by notification; always verify the current position on the GST portal or with a qualified professional before acting. Accurate as of 3 September 2026.