CORAA
Updated October 2026

Audit automation — Page 14 insights.

Practical guides, procedure frameworks, and tool comparisons for CA firms navigating AI-powered audit in India.

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AI in Audit
How to Use ChatGPT and Claude to Calculate Deferred Tax: A Step-by-Step Guide for CAs
Step-by-step prompts for using ChatGPT, Claude or Gemini to build a deferred tax working (DTA / DTL) under AS 22 or Ind AS 12, with a fully worked example, disclosure table and checks for where AI goes wrong.
26 Sept 2026
10 min read
AI in Audit
How to Use ChatGPT and Claude to Calculate GST Interest: A Step-by-Step Guide for CAs
A safe, repeatable way to use a general AI assistant to work out GST interest under Section 50 - late payment at 18%, wrongly availed and utilised ITC at 24% - with copy-paste prompts, a hand-checked example, and the mistakes to catch.
26 Sept 2026
9 min read
AI in Audit
How to Use ChatGPT and Claude to Draft a Utilization Certificate: A Step-by-Step Guide for CAs
A safe, step-by-step method for using ChatGPT, Claude or Gemini to draft and check a utilization certificate, with copy-paste prompts, a worked case and the errors to catch.
26 Sept 2026
8 min read
Audit Standards
ISO/IEC 27001:2022 Internal Audit Guide and Annex A Controls
How to run an ISO/IEC 27001:2022 internal audit: ISMS clauses, the Statement of Applicability and the four Annex A control themes, with evidence to ask for.
26 Sept 2026
7 min read
Audit Standards
ISO 31000 vs ISO 9001 Risk-Based Thinking: What Differs for Auditors
ISO 9001 asks for risk-based thinking inside a quality system; ISO 31000 is a general risk management guideline. How they differ and what to audit.
26 Sept 2026
5 min read
Audit Standards
ISO 9001 Internal Audit Checklist: Clause by Clause, Clauses 4 to 10
An ISO 9001:2015 internal audit checklist for clauses 4 to 10: what to ask, what evidence to look at, and the mistakes that cause findings.
26 Sept 2026
7 min read
Audit Standards
ISO Certification Audits Explained: Stage 1, Stage 2, Surveillance and Recertification
How an ISO certification audit works: Stage 1, Stage 2, the certification decision, yearly surveillance audits and recertification, in plain English.
26 Sept 2026
6 min read
Audit Procedures
Is Your Journal Entry File Complete? Reconciling a Tally or SAP Export to the Trial Balance
Before testing journal entries under SA 240, prove the file is complete. How to reconcile a Tally or SAP export to the trial balance, step by step.
26 Sept 2026
6 min read
Industry Guides
NPA Classification for Agricultural and Allied Loans: RBI Master Circular 2025 and the Nov 2025 Directions
When an agricultural loan becomes an NPA under the RBI IRAC norms: crop-season test, Annex-2 scope, why allied activities follow the 90-day test, and provisioning with a worked example.
26 Sept 2026
8 min read
Internal Audit
Operational Audit Guide: Scope, Approach and Worked Examples
How to run an operational audit: set the scope, map the process, test controls and efficiency, and report. Includes two worked examples and a checklist.
26 Sept 2026
6 min read
Audit Standards
PCAOB vs AICPA Audit Standards: The Basics for Indian CA Firms
Which US audit standards apply to which client, who writes them, and how they compare with India's SAs. A plain primer for CA firms looking at US work.
26 Sept 2026
5 min read
Audit Standards
SA 200: Overall Objectives of the Independent Auditor, Explained
What SA 200 asks of an auditor: reasonable assurance, a report, ethics, scepticism and judgement, and why it sits under every other standard.
26 Sept 2026
6 min read
Internal Audit
SOX 302 vs SOX 404: Certifications and What Each Requires
SOX 302 is a quarterly CEO and CFO certification; SOX 404 is an annual assessment of internal control. A plain comparison of timing, signers and evidence.
26 Sept 2026
6 min read
Internal Audit
SOX 404: Management Assessment vs Auditor Attestation Explained
SOX 404 has two parts: management assesses internal control over financial reporting, and the auditor may attest to it. Who does what, and what each says.
26 Sept 2026
6 min read
Compliance
Structural Audit: What It Is and When It Is Done
A structural audit checks whether a building is safe to use. What it covers, when local rules ask for one, who signs it and what a finance auditor can check.
26 Sept 2026
5 min read
Internal Audit
Types of Internal Audit: Operational, Compliance, Financial, IT and More, Explained
The main types of internal audit in plain English: operational, compliance, financial, IT, performance, forensic and more. What each tests and how to choose.
26 Sept 2026
6 min read
Certifications
Utilization Certificate: Format, Who Signs and a CA Checklist
What a utilization certificate must contain, who signs it under GFR 12-A, what to verify before signing, and how it differs from a turnover or net-worth certificate.
26 Sept 2026
8 min read
Compliance
XBRL Applicability Under the Companies Act: Who Must File AOC-4 XBRL?
Rule 3 of the MCA XBRL Rules 2015 requires listed companies, their Indian subsidiaries, and companies with paid-up capital of ₹5 crore, turnover of ₹100 crore or Ind AS financial statements to file AOC-4 XBRL. Thresholds, exemptions, worked example and common mistakes.
26 Sept 2026
8 min read
AI in Audit
Can You Upload Client Ledgers to ChatGPT, Claude or Grok? A CA Firm Decision Guide
A practical data-confidentiality decision guide for CA firms deciding whether client ledgers, tax records, bank files or working papers may be used with an AI assistant.
15 Sept 2026
7 min
AI in Audit
Claude, ChatGPT or Grok for CA Firms? Match the Model to the Task
A practical, review-safe comparison of Claude, ChatGPT and Grok for Indian CA firms: long documents, structured drafting, current-topic discovery and evidence controls.
15 Sept 2026
6 min
Tax Compliance
26AS vs AIS vs TDS Certificates: What Each Source Can and Cannot Prove
A practical comparison for tax-audit teams reconciling TDS credit, deductor filings, certificates, Form 26AS and AIS without treating every source as interchangeable.
15 Sept 2026
6 min
Tax Compliance
Form 26Q to Form 140: Tax Year 2026-27 Transition Checklist
A practical Form 26Q to Form 140 checklist for deductors and CA firms: year boundary, Sec 393 mapping, payment codes, certificates, corrections and review evidence.
15 Sept 2026
7 min
Tax Compliance
Form 26Q Using AI: A Quarter-End Checklist for Deductors and CA Firms
A quarter-end Form 26Q review workflow using books, challans, deductee masters, correction files, certificates and 26AS/AIS—with safe AI assistance and clear human sign-off.
15 Sept 2026
7 min
Tax Audit
Form 3CD Clause 34 with AI: Build the TDS Evidence Map from Source Data
A review-safe workflow for building Form 3CD Clause 34(a), 34(b) and 34(c) support from ledgers, challans, returns, certificates and 26AS/AIS.
15 Sept 2026
7 min
GST Compliance
GST Reconciliation Do’s and Don’ts: Why a Green Match Rate Is Not Enough
A practical GST reconciliation checklist for CA firms covering GSTR-2B, books, GSTR-3B, timing, eligibility, duplicates and evidence retention.
15 Sept 2026
6 min
GST Compliance
GST Reconciliation Using AI: A Practical Playbook for 2B, Books and GSTR-3B
How CA firms can use AI to triage GST reconciliation exceptions across books, GSTR-2B and GSTR-3B—with a review-safe workflow and do's and don'ts.
15 Sept 2026
8 min
GST Compliance
GSTR-1, GSTR-1A and GSTR-3B: A Reconciliation Workflow for CA Firms
A practical workflow for reconciling outward supplies across books, GSTR-1, GSTR-1A and GSTR-3B, with amendment, credit-note, timing and review controls.
15 Sept 2026
7 min
AI in Audit
Tax Audit with AI: Do’s and Don’ts for a Review-Safe CA Firm Workflow
A practical checklist for using AI in tax audit fieldwork across Form 3CD, GST, TDS and client data—without delegating professional judgement or losing the evidence trail.
15 Sept 2026
7 min
AI in Audit
Tax Audit Exceptions AI Finds Early: A Review Queue for CA Firms
The tax-audit exception patterns AI can surface early—round amounts, year-end entries, missing TDS, related parties and GST mismatches—with the human procedures that follow.
15 Sept 2026
8 min
AI in Audit
Tax Audit with AI: A Review-Safe Workflow for Indian CA Firms
A practical tax-audit workflow using AI for Form 3CD evidence, TDS, GST and exception drafting without outsourcing professional judgement.
15 Sept 2026
8 min
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