THE TRANSITION – CONFIRMED BY THE CBDT FAQ
Form 26 replaces Form 3CA/3CB/3CD – what changes for tax audit, and when.
AY 2026-27 is the LAST season on the familiar 3CD. From tax year 2026-27 under the Income-tax Act 2025, the audit report moves to a single consolidated Form 26 under section 63 and Rule 47 of the Income-tax Rules 2026 – filed for the first time in 2027. Here is the clean picture, straight from the official FAQ.
The timeline – nothing changes this season
| Period | Law | Audit report |
|---|---|---|
| FY 2025-26 (AY 2026-27) – reports due 30 Sep 2026 | Income-tax Act 1961 | Form 3CA/3CB + 3CD, as amended by Notification 23/2025 – the FINAL year of this format |
| Tax year 2026-27 onward – reports filed in 2027 | Income-tax Act 2025 (in force 1 Apr 2026) | Form 26 under section 63 + Rule 47, Income-tax Rules 2026 |
Do not let the new Act’s commencement confuse the season: audits you sign between now and the 30 September 2026 deadline are entirely 1961-Act audits on the current 3CD. Form 26 first applies to the year ENDING 31 March 2027.
Section mapping – old to new
| Income-tax Act 1961 | Income-tax Act 2025 |
|---|---|
| Section 44AB (tax audit) | Section 63 |
| Rule 6G + Forms 3CA / 3CB / 3CD | Rule 47 + Form 26 (Parts C and D broadly play the 3CA/3CB roles) |
| Sections 44AD / 44ADA / 44AE (presumptive) | Section 58 (merged into one table – same rates and limits) |
| Sections 44B / 44BB / 44BBA / 44BBB / 44BBC | Section 61 |
| Section 139(1) due date | Section 263(1) |
| Section 271B (audit penalty) | Section 446 |
| Section 288(2) – who can be the accountant | Section 515(3)(b) |
What Form 26 does differently
Per the official CBDT FAQ on Form 26, the new report consolidates the three forms into one, restructured around triggers:
| Feature | What it means for the audit file |
|---|---|
| Single form, 53 clauses, Yes/No triggers | Schedules open only where a trigger answers Yes – less repetition, but the trigger answers themselves become audit assertions. |
| Mandatory categorisation of qualifications | Every qualification must be classed (test-check basis, management representation, unable to verify) – vague caveats end. |
| Electronic books detail | IP address / server location of books, with the daily-India-backup requirement of Rule 46 in the background – cloud-accounting clients need this documented. |
| UDIN + FRN inside the form | Both become form fields rather than portal add-ons. |
| TDS/TCS unreported-transaction counts, trimmed quantitative details, simplified depreciation split | Cleaner data asks, but tighter reconciliation with returns. |
Sensible preparation this season: run the AY 2026-27 audit on the amended 3CD as usual, but keep workpapers – cash-ratio evidence, MSME supplier tests, e-books location – in a shape that transcribes cleanly into a trigger-based form next year.
This season still runs on Form 3CD
The clause-wise checklist Excel covers the amended 3CD end to end – with a version log noting the Form 26 transition so your file is ready for next year too.
Download the 3CD Checklist ExcelFrequently asked questions
When does Form 26 replace Form 3CD?
From tax year 2026-27 under the Income-tax Act 2025 – the first Form 26 reports will be filed in 2027 for the year ending 31 March 2027. Audits for AY 2026-27 (FY 2025-26) continue on Form 3CA/3CB + 3CD.
Which section replaces 44AB?
Section 63 of the Income-tax Act 2025, with the report format prescribed by Rule 47 of the Income-tax Rules 2026 as Form 26. The presumptive sections 44AD/44ADA/44AE merge into section 58 with the same rates and limits.
Does the new Act change this year’s audit?
No – AY 2026-27 is fully a 1961-Act year. The 2025 Act’s savings provisions preserve ongoing proceedings, and the CBDT FAQ confirms 3CA/3CB/3CD continue for assessment years up to 2026-27.
Is Form 26 the same as the TDS Form 26AS?
No – unfortunate naming aside, Form 26 here is the consolidated TAX AUDIT report under the Income-tax Act 2025, unrelated to the Form 26AS tax-credit statement.Statutory Audit Checklist Pack (Excel)