Industry Playbook · CA Firms

    GST Registration for CA Firms

    CA / CS / CMA firms cross ₹20L services threshold in year one for most metro practices. GSTIN unlocks B2B retainer invoicing, ITC on office and tools, and credibility with corporate clients.

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    3–7 days
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    Why CA Firms need GST registration

    • Enterprise and B2B clients require a valid GSTIN before onboarding — ca firms without GST lose deals.
    • Input Tax Credit (ITC) on office rent, software, equipment and marketing spend directly reduces tax outflow.
    • Voluntary registration below the ₹20L / ₹40L threshold is common when serving inter-state or international clients.
    • Payment aggregators (Razorpay, Stripe) and marketplaces auto-collect TCS — GSTIN is needed for reconciliation.
    • Compliance readiness for investor due diligence, bank loans and government tenders.

    Scheme choice for CA Firms

    Regular scheme.

    HSN / SAC codes typically used

    CodeDescriptionGST rate
    998231Tax consultancy18%
    998232Accounting / auditing18%
    998221Legal / secretarial18%
    998311Management consulting18%
    998399Other professional services18%

    Top 5 pain points CA Firms face

    • 1Firm's GSTIN uses firm PAN — not partner's personal PAN.
    • 2Ex gratia / referral fees between firms need clean invoicing with SAC.
    • 3Reimbursement of ROC / income-tax filing fees needs pure-agent structuring.
    • 4Retainer invoices across FYs need proper revenue recognition.
    • 5Sub-contracting audit / tax work to another CA needs vendor GSTIN for ITC.

    ITC strategy for CA Firms

    • Claim ITC on office rent, software (Winman, Tally, ClearTax, TAS), library, subscriptions, coworking.
    • Pure-agent structure for ROC / IT / GSTN fees paid on client's behalf.
    • Regular scheme mandatory for inter-city / inter-state clientele.

    Compliance calendar

    Return / formDue dateNotes
    GSTR-111th of next monthOutward supply — invoice-wise details.
    GSTR-3B20th of next monthSummary return + tax payment.
    GSTR-931 December (next FY)Annual return (turnover > ₹2Cr).
    LUT (if exports)Annually in AprilZero-rated export enabler.

    Start GST registration for your ca firms business

    Flat ₹999. CA-led. GSTIN in 3–7 days. First return filed free.

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    Where CA Firms register GST most

    City-specific GST Registration guides for ca firms — jurisdiction, address-proof nuance and on-ground pickup, priced flat ₹999.

    GST Registration for CA Firms — FAQs

    FAQs

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    Last Updated
    15 September 2026

    Content refreshed against the latest CBIC / CBDT / MCA notifications and portal changes.

    Reviewed by Chartered Accountant
    CA Ravi Sharma

    Chartered Accountant · ICAI Member · 12+ years in Indian tax & compliance

    Update History
    1. 15 September 2026
      Reviewed rates, forms and portal workflow for GST Registration by Industry. Verified against latest CBIC/CBDT notifications.
    2. 10 January 2026
      Refreshed FAQ set, added new penalty examples and jurisdiction notes.
    3. 05 October 2025
      Structural rewrite for EEAT — added expert commentary, playbooks and process timeline.