A practical guide covering critical Form 3CD audit clauses, including turnover applicability, Clause 44 GST expense breakdowns, Section 43B(h) MSME payment rules, and cash transaction thresholds.

Form 3CD Tax Audit Checklist

AY 2026-27 — Clauses That Trip Up Most Businesses

For FY 2025-26 (AY 2026-27), the audit is filed on Form 3CA/3CB, along with Form 3CD, under the Income-tax Act, 1961. The audit report is due on 30 September 2026, and the ITR is due on 31 October 2026.

•  For a business, the tax audit applies if turnover exceeds Rs. 1 crore, and this limit is raised to Rs. 10 crore where both cash receipts and cash payments are 5% or less of the total.

•  For a profession, the tax audit applies if gross receipts exceed Rs. 50 lakh, and this limit is raised to Rs. 75 lakh where cash transactions are within 5%.

•  Check for the presumptive-scheme trap: if you declared income under Section 44AD in an earlier year, opted out within the five-year lock-in period, and now show income below the presumptive rate while your total income exceeds the basic exemption limit, the audit will apply.

•  Confirm exact applicability using a Tax Audit Applicability Calculator before assuming that you are exempt.

•  Note the deadlines carefully: the audit report is due on 30 September 2026, and the return, in an audit case, is due on 31 October 2026.

•  Be aware that the late-filing penalty under Section 271B is the lower of 0.5% of turnover or Rs. 1,50,000, so do not plan around a possible extension of the deadline.

•  Confirm that the 'total expenditure' shown in column (A) includes all expenditure debited in the books, not just purchases; this means salaries, interest, depreciation and statutory dues must all be included.

•  Split the GST-relevant expenditure into four categories: exempt supply, composition dealers, other registered entities, and the total payment made to registered entities.

•  Route non-GST items, such as salaries, interest and most statutory payments, into the unregistered or non-GST residue, and do not force a GST classification onto them.

•  Classify the split by the supplier's registration status, not your own, which means you will need vendor-master data tagged for composition dealers and unregistered parties.

•  For expenditure under reverse charge, classify it by the actual supplier, and keep it consistent with what was reported in GSTR-3B.

•  Reconcile the purchase and expense ledgers against GSTR-2B for the year first, so that the registered-vendor figures already agree with the credit register.

•  Before sign-off, check that the registered and unregistered columns reconcile back to the total expenditure figure in column (A).

•  Confirm the underlying rule: any sum payable to a micro or small enterprise that is not paid within the time limit set out in Section 15 of the MSMED Act is deductible only in the year it is actually paid, not on accrual.

•  Note the time limit: it is 15 days where there is no written agreement, and up to 45 days where there is a written agreement.

•  Check coverage carefully: only micro and small enterprises are caught by this rule, and medium enterprises are outside the scope of Section 43B(h).

•  Confirm proof of status: only a valid Udyam Registration counts as proof, so a supplier that merely calls itself an MSME without being Udyam-registered does not attract Section 43B(h).

•  Apply the traders exception where relevant: wholesale and retail traders are Udyam-registered only for priority-sector lending purposes, so the Section 15 payment protection, and therefore Section 43B(h), does not extend to them; confirm the Udyam certificate's activity classification before excluding any such supplier.

•  Remember that the disallowance applies only to amounts that are still unpaid at year-end and are already beyond the 15- or 45-day limit as on 31 March; an amount still within its payment window on 31 March is not disallowed.

•  Note that interest under Section 16 of the MSMED Act on delayed payment is always disallowed under Section 23 of the MSMED Act, read with Section 43B, and must be reported in Clause 22(i) even if it was never actually paid.

•  Reconcile the creditors' ageing schedule against Udyam status before sign-off, not after.

•  Check the acceptance and repayment of loans and deposits under Sections 269SS and 269T.

•  Check cash receipts under Section 269ST.

•  Flag any loan or deposit that was accepted or repaid in cash of Rs. 20,000 or more.

•  Flag any cash receipt of Rs. 2,00,000 or more, as this falls under Section 269ST.

•  For every flagged item, list the party's name, PAN, the amount involved, and the mode of transaction.

•  As a best practice, route such transactions through the bank during the year itself, so that this clause reports 'nil' and the 100% penalty exposure is avoided altogether.

•  Clause 21 covers amounts disallowed under Section 40A(3), which applies to cash expenditure above Rs. 10,000 paid to one person in a day, or Rs. 35,000 in the case of goods-carriage transporters.

•  Clause 34 requires TDS and TCS reconciliation, covering every deduction, its applicable rate, and any short or late deduction; this should be cross-checked against Form 26AS and TRACES data.

•  Clause 26 covers statutory dues under Section 43B, such as GST, PF and ESI, that were paid after year-end but before the return filing date.

•  For FY 2025-26 (AY 2026-27), you still file Form 3CD; the consolidated Form 26 under the Income-tax Act, 2025 will apply only from FY 2026-27 (AY 2027-28) onward.

•  Clause 44 must reconcile all expenditure to the profit and loss account, split by supplier GST status, and this should be built off the GSTR-2B reconciliation rather than from memory.

•  Under Section 43B(h) (Clause 22), amounts owed to Udyam-registered micro and small suppliers that remain unpaid beyond 15 or 45 days as on 31 March are disallowed, while medium enterprises and traders remain outside its scope.

•  Interest on delayed MSME payments is disallowed under Section 43B whether or not it is actually paid, and must still be reported in Clause 22(i).

•  Keep cash loans and repayments below Rs. 20,000, and cash receipts below Rs. 2,00,000, so that Clause 31 reports 'nil' and penalties under Sections 269SS, 269T and 269ST never arise.

•  The audit report is due on 30 September 2026; missing this deadline costs the lower of 0.5% of turnover or Rs. 1,50,000 under Section 271B.