Circular 561 explained: this guide covers what it means, who it applies to, the step-by-step process, documents required, fees, due dates and penalties in India — so you can stay compliant with confidence and avoid costly mistakes.
Circular 561 settles that a company keeping a calendar-year or other non-financial-year accounting period is still audited under section 44AB for the financial year, and reports in Form 3CB.
From the ICAI Guidance Note on Tax Audit (Revised 2026), Appendix XIV, referred to at paragraph 15.11. The circular is a 1961-Act instrument; under the Income-tax Act, 2025 the same structural question must be tested against that Act's own definition of the tax year and the corresponding report forms — Form No. 26 under rule 47 of the Income-tax Rules, 2026.
The representation that produced Circular 561
Paragraph 1: the Board received representations regarding difficulties faced in complying with section 44AB in the case of companies which follow an accounting period other than the financial year.
Paragraph 2 sets out why the conflict exists at all: section 3 of the Income-tax Act provides that with effect from 1 April 1989, "previous year" means the financial year immediately preceding the assessment year. But in spite of the introduction of a uniform previous year for income-tax purposes, some companies may adopt an accounting period other than the financial year — say the calendar year — under the Companies Act for other purposes.
Paragraph 3 frames the question precisely: whether the tax auditor can audit and certify the accounts for the period for which accounts have been maintained under the Companies Act — in that example, the calendar year — or whether he must certify the accounts for the relevant financial year, which is the uniform accounting year for tax purposes.
The Board's answer
"The Board have considered the matter and are of opinion that as the income of the previous year is chargeable to tax and, for the purposes of Income-tax Act, the previous year is the financial year, the tax auditor would have to carry out the audit under section 44AB in respect of the period covered by the previous year, i.e., the relevant financial year."
The reasoning in Circular 561 is a single step. Charge follows the previous year; the previous year is the financial year; therefore the audit follows the financial year. The company's own accounting period is irrelevant to section 44AB, however lawfully it is maintained under the Companies Act.
Why the proviso falls away
The second half of the paragraph is the operative part for the auditor:
"The proviso to the aforesaid section 44AB, therefore, covers only the cases where the accounts are audited under any other law in respect of the financial year. Where the accounting year is different from the financial year, the proviso to section 44AB will not apply. Consequently, the tax auditors would have to carry out the tax audit in respect of the period covered by the relevant financial year and submit his report in Form 3CB as required in rule 6G(1)(b) of the Income-tax Rules."
The proviso to section 44AB is what lets a company whose accounts are already audited under the Companies Act rely on that audit and report in Form 3CA. Circular 561 removes that route where the statutory audit covers the calendar year and the tax audit must cover the financial year: the two periods are not the same, so there is no audit "under any other law in respect of the financial year" to attach to. The auditor must audit the financial year himself and report in Form 3CB under rule 6G(1)(b).
What Circular 561 means in practice
| Consequence | Detail |
|---|---|
| Accounts have to be drawn for the financial year | The company must produce a profit and loss account and balance sheet for 1 April to 31 March, in addition to its Companies Act accounts |
| The auditor audits those accounts himself | He cannot rely on the statutory audit of a different period |
| Form 3CB is used | Including its Para 3 true-and-fair opinion and Para 5 observations, which Form 3CA does not carry in the same way |
| Every Form 3CD particular is measured on the financial year | Clause 40's preceding-year comparatives, clause 41's "issued during the previous year" test, clause 35's quantitative movement — all follow 1 April to 31 March |
| Clause 11 books of account | Still reported for the books actually maintained, from which the financial-year accounts are drawn |
Worked example
| Facts | Position |
|---|---|
| Indian subsidiary of a foreign parent, keeping a calendar year under the Companies Act for group reporting | Statutory audit covers January to December |
| Tax audit for A.Y. 2026–27 | Covers 1 April 2025 to 31 March 2026 |
| Report form | Form 3CB under rule 6G(1)(b) — not Form 3CA |
| Accounts to be audited | A financial-year profit and loss account and balance sheet prepared for the purpose |
| Turnover for the section 44AB threshold | Measured on the financial year, not the calendar year |
| Clause 40 preceding previous year | The preceding financial year, restated if necessary and disclosed |
Audit checklist
- Establish the accounting period under the Companies Act and compare it with the financial year.
- Where they differ, apply Circular 561 and audit the financial year, not the accounting year.
- Record in the working papers that Circular 561 was applied and why the proviso was held inapplicable.
- Obtain financial-year accounts from the assessee; do not certify the Companies Act period.
- Report in Form 3CB under rule 6G(1)(b).
- Measure the section 44AB threshold on the financial year.
- Draw every Form 3CD particular from the financial-year figures.
- Where a reconciliation between the two periods exists, retain it in the working papers.
Common mistakes
- Filing Form 3CA on the strength of a statutory audit covering a different period.
- Certifying the calendar-year accounts as the tax audit accounts.
- Testing the turnover threshold on the accounting year.
- Carrying comparatives from the Companies Act period into clause 40.
- Assuming the proviso applies because a statutory audit exists.