CORAA
Tax season desk · 2026

Make tax season ready.

A working desk for Indian CA firms: the calculators, reconciliations, templates and AI workflows that reduce the first-pass work without removing professional judgement.

Start with TDS transitionOpen tax-audit workpapers

Use the tool that matches today’s file.

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Tax audit workflow tools

Generate the client PBC request, maintain the exception register and prepare the partner review pack.

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TDS old → new Act converter

Translate 192 / 194-series / 195 / 206C into Sec 392–394, Forms 138–144 and certificates 130–131.

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Income Tax Act 2025 section mapper

A verified shortlist for tax audit, presumptive income, deductions, TDS, TCS and form renumbering.

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Advance tax calculator

Model instalment shortfalls and 234B/234C exposure before the next payment date.

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TDS rate finder

Search the payment head, rate and threshold used in the FY 2026-27 working file.

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GST reconciliation tools

Move from GSTR-2B to books, GSTR-3B and GSTR-9 with exception notes.

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Form 3CD Clause 20(b) calculator

Test month-wise employee PF/ESI contribution dates and the Section 36(1)(va) disallowance.

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Section 40(a) TDS disallowance calculator

Estimate gross Clause 21(b) exposure for resident and non-resident TDS defaults before completing the payment-wise working paper.

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Tax audit cap calculator

Check the ICAI per-partner ceiling before accepting another tax-audit assignment.

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Tax audit readiness scorecard

Score evidence gates and release blockers before the partner review.

Templates that leave an audit trail.

Generate a working paper, keep the old and new references together, and give the reviewer a clear place to sign off exceptions.

Tax audit client data requestTax audit exception registerTax audit partner review memoTax audit weekly status updateTDS quarter-close checklistForm 3CD clause indexSection 40(a) TDS disallowanceTDS transition working paperIncome Tax Act 2025 firm checklistForm 3CD tax audit reportTDS reconciliation working paperClause 44 GST reconciliationSection 40(a) TDS disallowance

Read before you automate.

Practical articles for tax audit, GST reconciliation, TDS and choosing the right AI assistant for the task.

Tax audit with AI: a review-safe workflowTax audit AI do’s and don’tsGST reconciliation using AITDS, Form 26AS and the new Form 140TDS reconciliation with AI: do’s and don’tsTDS reconciliation using AI: books, 26Q and 26AS26AS vs AIS vs TDS certificatesForm 3CD Clause 34 evidence mapGST reconciliation do’s and don’tsTax-audit exceptions AI finds earlyGSTR-1, GSTR-1A and GSTR-3B workflowForm 26Q to Form 140 checklistForm 26Q using AI: quarter-end checklistTax audit client documents checklistForm 3CD Clause 44 GST breakupForm 3CD Clause 20(b) PF/ESIForm 3CD upload and taxpayer acceptanceICAI tax audit guidance note updateClaude, ChatGPT, Grok and audit workCan you upload client ledgers to AI tools?AI-assisted audit use and source registerTax audit workpapers

The AI rule for this season.

Use Claude for long standards and working-paper context, ChatGPT for structured drafting and spreadsheet logic, Grok for fast current-topic discovery, and CORAA for the firm’s repeatable evidence trail. Whatever the assistant, anonymise client data, cite the source and have a professional sign off the result.