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India • Karnataka

GST software in Karnataka

For Bangalore, Mysuru, Hubballi-Dharwad and Mangaluru — IT services billing, multi-GSTIN on Pro and above, e-invoice, KPT, and CTD Karnataka filings on one screen.

IndiaLast updated: 2026-05-24
The short answer

Karnataka's GST landscape is shaped by two facts: Bangalore is the largest IT-services exporter in India (so most B2B billing leaves the state with IGST and a LUT instead of a tax invoice), and the Commercial Taxes Department Karnataka was one of the first states to digitise — so audit trails, notices and refund claims all flow through the CTD's e-Sahyog and GST portal directly. HelloBooks files GSTR-1, GSTR-3B, GSTR-6 and GSTR-8, handles LUT-based export billing for IT/ITES service providers, and reconciles SEZ and STPI invoices separately because they sit under different ITC rules.

Karnataka GST: IT services, SEZ billing, and the Bangalore commissionerates

Bangalore alone has three CGST commissionerates — Bangalore North, Bangalore South and Bangalore East — and the Karnataka State GST department runs parallel zones for SGST. Multi-office IT firms commonly hold one or two GSTINs in Karnataka (HSR, Whitefield or Electronic City) plus additional GSTINs in Hyderabad and Pune. On Pro and above, HelloBooks covers every GSTIN under one legal entity, so the Bangalore registration files GSTR-1 with Karnataka POS for domestic sales, and zero-rated export invoices to the US or UK roll into the IGST table under LUT — the Letter of Undertaking is tracked with its expiry date so the annual renewal doesn't slip past the FY end.

SEZ billing is its own subsystem in Karnataka because Bangalore has three operating SEZs (Whitefield, Devanahalli and KSEZ in Devanahalli) and supplies to SEZ units are zero-rated under Section 16 of the IGST Act. HelloBooks tags SEZ customers separately, raises invoices with the SEZ flag in the GSTR-1 schema, and keeps the bond/LUT trail per shipment so refund-of-input-tax claims under Rule 89 are populated automatically when the quarterly refund window opens.

Karnataka Profession Tax, payroll and the CTD e-Sahyog portal

Karnataka Profession Tax (KPT) is levied under the Karnataka Tax on Professions, Trades, Callings and Employments Act, 1976. Employers register, deduct PT at the Karnataka slab (zero up to ₹15,000/month gross, ₹200/month above ₹15,000), and pay monthly by the 20th. HelloTime, the suite's HR & payroll app, runs KPT inside India payroll alongside PF (12% employer + 12% employee, ₹15,000 wage ceiling), ESIC (3.25% employer + 0.75% employee, ₹21,000 wage ceiling), gratuity accrual under the Payment of Gratuity Act, and FBP buckets that the employee chooses themselves through a self-service portal. Form 16 (annual) and Form 24Q (quarterly) generate from the same payroll engine.

The CTD Karnataka runs an e-Sahyog portal for taxpayer services — notice tracking, refund status, registration amendments — that sits alongside the central GST portal. HelloBooks doesn't try to scrape e-Sahyog (the CTD doesn't publish an API), but it does keep a unified compliance calendar so Karnataka-specific milestones (KPT monthly, PT annual return Form 4, KPTA amendment filings) sit next to central GST due dates in a single view.

Built for Karnataka startups, manufacturers, and traders

Bangalore startups care most about three things at the books level: ESOP accounting (Section 17(2)(vi) perquisite tax at exercise, deferred to sale for eligible startups under Section 80-IAC), capitalised software development under AS 26 / Ind AS 38, and clean revenue recognition under Ind AS 115. HelloBooks ships a chart of accounts pre-mapped to a SaaS template, runs revenue spreads on annual contracts, and keeps a cap-table view alongside the books for ESOP grant tracking. Manufacturers in Hubballi or Mysuru get the same BOM, work-order, job-work (Section 143) and capital-goods ITC flows used in Maharashtra. Mangaluru-Udupi traders get multi-warehouse with inter-state stock transfer on delivery challan + e-way bill — handy for moving goods between Karnataka and Kerala on NH-66.

Cash flow forecasting for Karnataka businesses

Bangalore SaaS founders invoicing in USD/EUR and Hyderabad export-IT firms running 90-day client cycles share a cash-flow profile that traditional accounting tools do not draw — revenue is dollar-denominated, but GST, TDS, ESOP-exercise cash and Karnataka profession-tax (KPT) settle in INR on fixed monthly calendars. The FX risk is real (a 2% swing on a ₹30 lakh inward remittance is ₹60,000), and the GST refund cycle for service exports under LUT can stretch 90-120 days when the CTD Karnataka commissionerate is backed up. HelloBooks cash flow forecasting reads outstanding invoices in original currency and INR, recurring subscription revenue, vendor bills and statutory outflow schedules, then projects 13-week and 12-month cash positions with FX sensitivity built in. Driver-based scenarios let a Koramangala SaaS team model an MRR-growth slowdown plus a single debtor delay together — the kind of question that decides whether to raise the next round now or push it three quarters out.

Coverage

Key features for Karnataka businesses

LUT-based export billing for IT/ITES

Zero-rated export invoices under LUT generate the right GSTR-1 schema, track LUT expiry, and roll into refund-of-ITC claims under Rule 89 automatically.

SEZ supply flagging (Whitefield, KSEZ, Devanahalli)

SEZ customers tagged separately, invoices issued with the SEZ marker, bond/LUT trail per shipment — supports refund claims for input tax used on zero-rated supplies.

KPT, PF, ESIC, gratuity inside payroll

Karnataka Profession Tax computed at the right slab, KPT monthly challan due by the 20th, plus PF/ESIC/gratuity and Form 24Q quarterly — all from one payroll run.

Multi-GSTIN on Pro and above, with consolidated reporting

Karnataka HO + branches in Hyderabad or Pune get separate GSTR-1/3B per GSTIN but a single consolidated P&L, balance sheet and cash-flow for management.

See the full capability list:All HelloBooks features
Frequently asked

GST software questions Karnataka businesses ask

Yes. Service exports under Letter of Undertaking are issued as zero-rated invoices in the GSTR-1 Table 6A, the LUT number and validity are stored against the entity, and the system flags LUT renewal 30 days before expiry so a missed renewal doesn’t convert a quarter of exports into taxable supplies.

SEZ customers are flagged at the master level; invoices to them are raised as zero-rated supplies with the SEZ marker so they appear in the correct GSTR-1 section. The bond/LUT and shipping-bill numbers are stored against the invoice for refund-of-ITC claims under Rule 89 of the CGST Rules.

Yes — KPT is deducted at ₹200/month for employees earning above ₹15,000/month gross, the monthly challan generates automatically by the 20th of the following month, and Form 4 annual return is tracked against the Karnataka CTD calendar. KPT employer enrolment for the business itself is captured separately.

The cap-table view tracks ESOP grants, vesting schedules and exercise events. For DPIIT-recognised startups eligible under Section 80-IAC, the deferral of perquisite tax under Section 17(2)(vi) Proviso (introduced by Finance Act 2020) is supported — perquisite tax is computed at exercise but the cash collection point moves to sale or 48 months, whichever is earlier.

GST filings are by GSTIN, not by commissionerate — but jurisdiction (Bangalore North/South/East) is captured against the GSTIN so notice tracking and registration amendments route to the right office. HelloBooks does not scrape the e-Sahyog portal but does keep a unified compliance calendar that mirrors CTD due dates.

Place-of-supply is derived from the buyer’s GSTIN: a Bangalore vendor billing a Hyderabad customer raises IGST at the applicable rate (typically 18% for services), and the e-way bill is generated for any goods shipment above ₹50,000. The validity is set automatically based on the road distance — Bangalore-Hyderabad at ~570 km is a six-day EWB.

Yes — driver-based cash flow forecasting is included on every paid tier (see /cashflow-forecasting). It pulls live AR ageing in original currency and INR, recurring SaaS revenue, vendor bills, FIRC/BRC-tracked export-of-service receipts, and statutory outflows (GST, TDS, KPT). Bangalore SaaS founders use it to time GST refund follow-ups, plan ESOP cash, and avoid the month-end TDS-deposit squeeze.
Related

Keep exploring HelloBooks

HelloBooks files GST and e-invoices integration, keeps a full audit trail per Companies Act requirements, and is SOC 2 Type II attested. API ingestion is rate-limited per GSTN guidelines so heavy-volume CTD Karnataka filings remain stable through the month-end rush.

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