Tax Audit & Penalties for AY 2023-24

Tax Audit & Penalties for AY 2023-24

AY 2023-24 closed its regular filing window in October 2023, but the compliance fallout is very much alive in FY 2026-27. If you missed the Section 44AB audit, under-reported income, or have an unresolved AIS mismatch from FY 2022-23, the Income Tax Department has not forgotten — and neither should you. Reassessment notices under Section 148, penalty proceedings under Section 271B, and undisclosed-income penalties under Section 270A are landing in taxpayers' inboxes right now. This article tells you exactly what the rules were, what the penalties look like in rupee terms, and what your options are today.

Who Was Required to Get a Tax Audit for AY 2023-24

Section 44AB of the Income-tax Act 1961 requires certain taxpayers to have their accounts audited by a Chartered Accountant and to furnish the audit report to the Income Tax Department. For AY 2023-24 (i.e., FY 2022-23), the following persons were mandatorily covered:

Businesses:

• Gross turnover or receipts exceeded Rs. 1 crore during FY 2022-23 — the standard threshold.
• Gross turnover exceeded Rs. 10 crore, but only where cash receipts did not exceed 5% of total receipts and cash payments did not exceed 5% of total payments. If either cash test was breached on either side, the Rs. 1 crore limit applied.

Professionals:

• Gross receipts from a specified profession (as listed under Section 44AA) exceeded Rs. 50 lakh in FY 2022-23.

Presumptive scheme opt-outs and declared shortfalls:

• A person who claimed presumptive taxation under Section 44AD but declared profits below the prescribed rate (6% for digital receipts, 8% for cash) and whose total income exceeded the basic exemption limit.
• A person who had opted for Section 44AD in any one of the five immediately preceding assessment years and then opted out — they were locked into maintaining books of account and getting them audited for the following five years.
• A professional under Section 44ADA who declared income below 50% of gross receipts, with total income above the basic exemption.

The digital-turnover carve-out — the Rs. 10 crore threshold — is one of the most frequently misapplied reliefs in practice. You qualify only if both the receipts side and the payments side clear the 95% digital test independently. A single large cash receipt during the year pulls you back to the standard Rs. 1 crore limit, regardless of how digital your payments were.

Forms and Filing Deadlines

The audit report for AY 2023-24 was filed in:

• Form 3CA + Form 3CD: where the taxpayer was already required to get accounts audited under any other law — for example, a company under the Companies Act 2013 or a firm under a partnership deed requiring compulsory audit.
• Form 3CB + Form 3CD: where accounts were audited solely under Section 44AB. This covers most sole proprietors, partnership firms, and LLPs that cross the turnover threshold but are not separately required to audit under any other statute.

Key deadlines for AY 2023-24 — no general extension was notified:

Taxpayers who filed the audit report after 30 September 2023 — even by a single day, even in October 2023 — are technically in default unless they can establish a reasonable cause. The CBDT did not grant a blanket extension for AY 2023-24.

Section 271B: The Audit Penalty in Rupee Terms

Section 271B imposes a penalty on any taxpayer who fails to either (a) get accounts audited as required, or (b) furnish the audit report by the prescribed due date. The penalty is the lower of:

• 0.5% of total sales, turnover, or gross receipts, or
• Rs. 1,50,000

The cap means that once turnover crosses Rs. 3 crore, the penalty is flat at Rs. 1,50,000. Smaller businesses pay a proportional amount.

Worked Examples

Example A — Consultancy firm: A firm with professional receipts of Rs. 75 lakh missed the 30 September 2023 deadline. Penalty = 0.5% × Rs. 75,00,000 = Rs. 37,500. Well below the cap.

Example B — Trading business: A trader with turnover of Rs. 6 crore failed to upload Form 3CB-3CD before the deadline. Penalty = 0.5% × Rs. 6,00,00,000 = Rs. 3,00,000 — capped at Rs. 1,50,000.

Example C — Double default: The AO can levy Section 271B simultaneously with Section 271A (failure to maintain books of account). A proprietor who neither kept proper books nor got them audited faces both penalties, plus a potential Section 270A penalty if the absence of books is used to justify an income addition.

The Reasonable Cause Defence

Section 273B provides a complete defence to a Section 271B penalty if the taxpayer proves reasonable cause for the default. Courts have accepted causes such as the death or serious illness of the principal, natural calamity, or a genuine dispute about whether the turnover threshold was crossed. Generic pleas — "my CA was unavailable", "I was out of the country" — are almost always rejected. Your defence must be documented, filed in writing during penalty proceedings, and corroborated by evidence. An afterthought explanation uploaded during appeal carries far less weight.

Section 148 Reassessment: Still Active in FY 2026-27

The Finance Act 2021 rewrote the reassessment framework. Under the new Section 147, the AO must have specific "information" suggesting income has escaped assessment before issuing a Section 148 notice. The time limits under revised Section 149 are:

• 3 years from the end of the relevant assessment year — for escaped income estimated below Rs. 50 lakh.
• 10 years from the end of the relevant assessment year — only where the AO has "information" from a specified source (search, survey, statement of a third party, etc.) and the escaped income is Rs. 50 lakh or more.

For AY 2023-24 (end of assessment year = 31 March 2024):

• 3-year window closes: 31 March 2027 — still open as of the date of this article.
• 10-year window closes: 31 March 2034 — applicable to high-value evasion cases.

This means if you have any unresolved AIS discrepancy, missed income, or unexplained transaction from FY 2022-23, the AO can knock on your door at any point before 31 March 2027 for routine cases. You are not in the clear yet.

The 148A Pre-Show-Cause Safeguard

The Finance Act 2021 also inserted Section 148A, which requires the AO to follow a two-stage procedure before issuing a Section 148 notice:

1. Section 148A(b) notice: the AO must first serve a show-cause notice giving the taxpayer an opportunity to explain why reassessment should not be initiated. You have a minimum of seven days (extendable to 30 days) to respond.
2. Section 148A(d) order: the AO must consider your reply and pass a reasoned order before proceeding to issue the Section 148 notice.

This pre-notice stage is your single most valuable intervention point. A well-drafted response at the 148A(b) stage — backed by a line-by-line AIS reconciliation and documentary evidence — can terminate the proceedings entirely. Overturning an adverse Section 148A(d) order later, at the CIT(A) or ITAT, is harder and costlier.

AIS-Driven Notices: What the System Is Catching

The Annual Information Statement (AIS) — available on the income tax portal at incometax.gov.in under the "Services" tab — aggregates data from over 40 reporting sources: banks, mutual fund registrars, stock exchanges, sub-registrars of property, GST filings, and overseas remittance records reported in Form 15CA. The companion Taxpayer Information Summary (TIS) shows the deduplicated, category-wise position.

The most common AIS mismatches triggering Section 148 notices for AY 2023-24 are:

• Equity and mutual fund redemption proceeds reported by CDSL/NSDL or BSE/NSE not matching the capital gains or business income declared in the ITR.
• Fixed deposit interest spread across multiple banks — especially secondary accounts, co-operative banks, or joint-holder FDs — where only partial interest was declared.
• Property sale consideration as reported by the sub-registrar vs the amount shown in Schedule CG of the ITR, with the AIS value often being the stamp duty value rather than the actual sale price.
• GST turnover fed from GSTN into the AIS showing materially higher receipts than income declared under "Business or profession" in the ITR.
• LRS remittances under the Liberalised Remittance Scheme reported by authorised dealers but not matched to source-of-funds disclosures.
• Virtual Digital Asset (VDA) transactions reported by exchanges from FY 2022-23 onwards under the new Section 194S TDS regime.

The practical first step before responding to any notice: download your AIS and TIS for FY 2022-23, map every entry against your original ITR, and prepare a written reconciliation. This document is the backbone of every response you file — whether it is a 148A(b) reply, a 143(3) submission, or an appeal memo.

Section 270A and the Cascade of Associated Penalties

Section 270A replaced the old Section 271(1)(c) with effect from AY 2017-18. It draws a sharp distinction between two categories of default:

Under-reporting (Section 270A(1) to (6)): Penalty = 50% of tax payable on the under-reported income. This applies to income that was simply not declared — interest not shown, capital gain understated, or a receipt omitted.

Misreporting (Section 270A(8) and (9)): Penalty = 200% of tax on the misreported income. This applies to deliberate acts: false entries in books, suppression of evidence, claiming deductions that do not exist, or fraudulent set-off of losses.

Worked Example — The Full Cost of an AIS Mismatch

Suppose a reassessment for AY 2023-24 uncovers Rs. 6 lakh of FD interest that the taxpayer did not declare in the original ITR (declared total income: Rs. 12 lakh; actual income: Rs. 18 lakh):

Had the same taxpayer filed an ITR-U under Section 139(8A) before the window closed, the additional surcharge would have been 50% of Rs. 1,80,000 = Rs. 90,000 — with no Section 270A penalty on top. The voluntary disclosure route was materially cheaper, which is precisely why it existed.

Other penalties and interest charges still running from AY 2023-24:

Section 139(8A) Updated Returns: What Was Available — and What Is Not

The Finance Act 2022 introduced Section 139(8A), allowing taxpayers to file an Updated Return (ITR-U) to declare additional income missed or suppressed in the original return. The mechanism:

• Original time limit: 2 years from the end of the relevant assessment year.
• For AY 2023-24: End of AY = 31 March 2024. Two years from that date = 31 March 2026.
• As of the date of this article (May 2026), the ITR-U window for AY 2023-24 has closed.

The Finance Act 2025 extended the updated return window to 4 years from the end of the relevant assessment year — but this extension applies to AY 2025-26 and subsequent assessment years only. It does not revive the closed window for AY 2023-24.

What this means for you now:

• If you had under-reported income for AY 2023-24 and did not file an ITR-U by 31 March 2026, voluntary self-correction through an updated return is no longer available for that year.
• If a Section 148 notice arrives, your options are: contest the notice at the 148A(b) stage, respond fully and accurately during reassessment, and — if an addition is confirmed — appeal to CIT(A) or ITAT on the merits.
• For AY 2024-25 (end of AY = 31 March 2025), the ITR-U window runs until at least 31 March 2027 under the original 2-year rule, and potentially to 31 March 2029 under the 4-year amendment. Do not miss this window if you have undisclosed income from FY 2023-24.

Additional tax surcharge under Section 139(8A) — for reference:

• ITR-U filed within 12 months from end of AY: 25% of additional tax due.
• ITR-U filed between 12 and 24 months from end of AY: 50% of additional tax due.
• (For AY 2025-26 and later, additional tiers up to 4 years at rates as notified.)

Defending a Scrutiny or Reassessment Notice: Step-by-Step

Whether you receive a Section 148A(b) show-cause notice or a faceless scrutiny notice under Section 143(2), the handling is the same — methodical, documented, and prompt.

1. Read the notice within 24 hours. Identify the section cited, the assessment year, the deadline for response, and the specific transaction or income item in question. A Section 148A(b) and a Section 143(2) notice require different analytical approaches.
2. Log in to the e-filing portal → "Pending Actions" → "e-Proceedings". Confirm the notice is active, download all attachments, and check the response deadline displayed on the portal (it may differ from the date on the notice letter).
3. Download your AIS and TIS for FY 2022-23 from the portal. Build a line-by-line reconciliation spreadsheet mapping each AIS entry to your ITR: Schedule HP, Schedule CG, Schedule OS, Schedule BP, and the income tax computation.
4. Collect supporting documents: bank statements, Form 16/16A TDS certificates, broker contract notes, property sale agreement plus registration receipt, loan sanction letters, and balance sheets or profit-and-loss accounts if business income is under query.
5. Draft a structured written response. For a 148A(b) notice, argue specifically why the information relied upon by the AO does not establish escaped income — address each point raised, do not give a general reply. For a 143(2)/143(3) query, explain each item with page-numbered annexures.
6. Upload within the deadline via the "e-Proceedings" module. Do not habitually seek time extensions; repeated adjournment requests signal disorganisation and can invite greater scrutiny.
7. Save the portal acknowledgement of every document you upload. Screenshot the submission confirmation.
8. If the AO passes an adverse Section 148A(d) order and issues the formal Section 148 notice, you have 30 days to file a return in response (or to confirm that your original ITR stands). For cases where the potential addition exceeds Rs. 5 lakh or involves complex legal issues — unexplained investments, alleged bogus purchases, foreign income — engage a tax advocate experienced in faceless proceedings before submitting the return.

Common Mistakes That Invite Scrutiny

These are the patterns practitioners encounter most frequently in AY 2023-24 cases that are now before the AO or in reassessment:

• Not reconciling GST turnover with income tax turnover. GSTN data flows into the AIS. If your GSTR-1 shows Rs. 45 lakh of outward supplies and your ITR shows Rs. 38 lakh of business income, the gap will trigger a query — even if the difference is fully explained by exports or exempt supplies. Prepare the reconciliation before filing, not after receiving a notice.
• Treating the Rs. 10 crore threshold as unconditional. Many proprietors assume that if turnover is under Rs. 10 crore, there is no audit obligation. The Rs. 10 crore limit applies only if cash transactions on both the receipt and payment sides are each below 5%. Verify both ratios before claiming exemption.
• Partial FD interest declarations. Most taxpayers track interest on their primary savings bank account. FDs at secondary banks, recurring deposits, corporate FDs, and FDs held as a first-named joint holder are routinely missed. The AIS captures them all.
• Overlooking the presumptive scheme lock-in. A proprietor who declared income under Section 44AD for AY 2021-22 and then opted out for AY 2022-23 was locked into books-and-audit for five years (AY 2022-23 through AY 2026-27). A missed audit for AY 2023-24 within this lock-in exposes the taxpayer to both Section 271A (books penalty: as notified) and Section 271B (audit penalty: up to Rs. 1,50,000) simultaneously.
• Filing portal responses without indexed annexures. In the faceless framework, the AO reviews your upload without meeting you. An unindexed or unlabelled bundle of scanned documents is effectively an incomplete submission. Number every page, label each annexure clearly, and reference page numbers in the body of your response letter.
• Ignoring a demand notice. Demand notices under Section 156 must be responded to or paid within 30 days. From the 31st day, interest under Section 220(2) accrues at 1% per month (simple) on the outstanding demand. Ignoring a demand while "deciding what to do" is one of the most expensive mistakes possible — the interest compounds silently while you wait.

Key Takeaways

• The Section 271B audit penalty is capped at Rs. 1,50,000, but missing the audit exposes you to downstream additions, Section 270A penalties, and reassessment — costs that can be ten times the audit penalty itself.
• Section 148 reassessment for AY 2023-24 is live until 31 March 2027 for cases where escaped income is below Rs. 50 lakh, and until 31 March 2034 for larger amounts. Your case file is not closed.
• AIS reconciliation is non-negotiable. Every discrepancy between your AIS entries and your ITR is a potential notice trigger. Reconcile it on paper before a notice arrives — not scrambling to explain it after.
• The ITR-U window for AY 2023-24 expired on 31 March 2026. Voluntary disclosure through Section 139(8A) is no longer available for that year. For AY 2024-25, the updated return window is still open — use it if needed.
• The 148A(b) stage is your best defence opportunity. A well-argued, document-supported response here can end proceedings before a full reassessment is initiated. Treat it seriously, not as a formality.
• The Rs. 10 crore cash-transaction exemption is conditional on both sides of the ledger. Confirm your cash receipts AND cash payments are each below 5% before relying on this threshold.
• Apply these lessons to AY 2026-27 filings now. Reconcile AIS before filing, complete the tax audit well before 30 September 2026, maintain contemporaneous documentation, and respond to every portal communication within the stipulated timeline. The faceless framework rewards organised submissions and has no mercy for casual ones.