Income 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.
The Income-tax Rules, 2026 were notified by Notification No. GSR 198(E) dated 20 March 2026 and come into force on 1 April 2026. Made under section 533 of the Income-tax Act, 2025, they contain 333 rules and replace the Income-tax Rules, 1962 in full.
What actually happened on 20 March 2026
The Income-tax Act, 2025 was passed in 2025 but it could not operate on its own. An Act sets out charge, computation and machinery in principle; the working detail — the thresholds, the forms, the procedures, the valuation methods — sits in rules. Until those rules existed, the new Act was a framework without a floor.
That floor arrived on 20 March 2026, when the Central Board of Direct Taxes notified the Income-tax Rules, 2026 through Notification No. GSR 198(E), with effect from 1 April 2026. Rule 1 is as short as such rules always are:
"(1) These rules may be called the Income-tax Rules, 2026. (2) They shall come into force on the 1st April, 2026."
A corrigenda notification dated 16 April 2026 followed, correcting drafting slips in the notified text. Anyone working from a copy downloaded between 20 March and 16 April 2026 is working from a superseded version.
The Income-tax Rules, 2026 apply from tax year 2026-27 onwards, alongside the Income-tax Act, 2025. Every year up to 31 March 2026 stays with the Income-tax Act, 1961 and the Income-tax Rules, 1962 — including assessments, appeals, penalties and reassessments for those years. Both rulebooks will be in live use side by side for several years, and quoting the wrong one is the single most common error in the transition.
The scale of the change
| Feature | Income-tax Rules, 1962 | Income-tax Rules, 2026 |
|---|---|---|
| Made under | Section 295, Income-tax Act, 1961 | Section 533, Income-tax Act, 2025 |
| Notified | 26 March 1962 | GSR 198(E), 20 March 2026 |
| Effective | 1 April 1962 | 1 April 2026 |
| Rule numbering | Rules 1 to 130-odd, with heavy lettered insertions (11UA, 11UAC, 114AAB, 10TA...) | A single clean run, rule 1 to rule 333 |
| Forms | Appendix II | Appendix III |
| Depreciation tables | Appendix I and IA | Appendix I and Appendix II |
| Core unit of time | Previous year / assessment year | Tax year |
The renumbering is the headline. The 1962 Rules had grown for sixty-four years by inserting letters — 11U, then 11UA, then 11UAA, 11UAC, 11UACA, 11UAD, 11UAE. The 2026 Rules discard that entirely and renumber straight through. Rule 11UA of the old book, for example, is now simply rule 57.
How the Rules are organised
The 2026 Rules follow the order of the Act rather than the order of the old rules, so the sequence is broadly: definitions, then income computation head by head, then business and profession, capital gains, deductions, special regimes, transfer pricing and international taxation, assessment machinery, PAN and returns, appeals and dispute resolution, TDS and TCS, recovery, reporting obligations, registered valuers and authorised representatives.
Some anchors worth memorising early:
| Subject | Rule (2026) | Old rule (1962) |
|---|---|---|
| Definitions | 2 | 2 |
| Period of holding of capital assets | 6 | 8AA |
| Valuation of perquisites | 15 | 3 |
| Depreciation | 25 | 5 |
| Cash payment exceptions | 26 | 6DD |
| Maintenance of books of account | 46 | 6F |
| Audit report of accounts | 47 | 6G |
| Other electronic modes of payment | 48 | 6ABBA |
| Determination of fair market value | 57 | 11UA and 11UAA |
| Application for allotment of PAN | 158 | 114 |
| Transactions where PAN must be quoted | 159 | 114B and 114BA |
| Return of income — forms and verification | 164 | 12 |
| Updated return | 165 | 12AC |
| Faceless assessment procedure | 176 | Section 144B of the 1961 Act |
| Credit for TDS and TCS | 203 | 37BA and 37-I |
| Payment of TDS to Government account | 218 | 30 and 37CA |
| TDS and TCS statements | 219 | 31A and 31AA |
| Statement of financial transaction | 237 | 114E |
| Registered valuers | 246 to 249 | Part of the Wealth-tax framework |
Rule 2 — the four definitions everything else rests on
Rule 2(1) defines only four expressions, and each one matters:
- "Act" means the Income-tax Act, 2025 (30 of 2025). Every unqualified reference to "the Act" anywhere in the 2026 Rules is to the new Act, never the 1961 Act. Where the Rules do mean the old Act, they say so expressly.
- "authorised bank" means a bank appointed by the Reserve Bank of India as its agent under section 45(1) of the Reserve Bank of India Act, 1934.
- "Form" means a Form in Appendix III appended to the Rules.
- "section" means a section of the Act.
Rule 2(2) then does the heavy lifting: words used in the Rules but not defined there take the meaning given to them in the Act. So the Rules are deliberately thin on definitions — the Act carries them.
The form numbers changed too
This is where most of the day-to-day friction will sit. The familiar form numbers are gone. A tax audit report is no longer Form 3CA/3CB with Form 3CD annexed — under rule 47 it is Form No. 26, with Part A, Part B, Part C and Part D doing the work the old forms did. Similar renumbering runs through the whole of Appendix III.
Practically, that means three things for the 2026-27 cycle:
- Every internal checklist, engagement letter and client communication that names a form number needs revision.
- Software and utilities have to be re-mapped; a template that emits "Form 3CD" is emitting a form that no longer exists for the year.
- Where a rule prescribes a form, the rule now tells you which Part of the form as well — the Parts are not interchangeable.
What the Rules did not change
It is worth being clear about this, because the renumbering can create the impression that everything is new. In large stretches, the substance was carried across intact. The cash payment threshold in rule 26 is still ten thousand rupees a day per person. The exceptions list in rule 26 reads almost exactly as old rule 6DD did. The accommodation perquisite percentages in rule 15 remain 10%, 7.5% and 5% by city population. Depreciation remains a written-down-value block system.
The genuine substantive changes are narrower and easier to miss precisely because they sit inside familiar text — the bill and voucher threshold in rule 46 moving to two hundred and fifty rupees, the retention period moving to seven tax years, the requirement that electronic books stay accessible in India with a daily backup on servers located in India, and the addition of CBDC wallets to the list of approved electronic payment modes in rule 48.
A practical reading order
For a general practice, the rules worth reading first are, in order: 46 and 47 (books and audit), 26 and 48 (cash and electronic payment), 164 and 165 (returns and updated returns), 158 and 159 (PAN), 203, 218 and 219 (TDS credit, payment and statements), 15 (perquisites, if you run payroll), 25 (depreciation) and 176 (faceless assessment).
For a non-profit practice, add 181 to 190. For international tax, 86 to 102 (safe harbour), 121 and 122 (advance pricing agreements) and 220 (payments to non-residents).
Common mistakes to avoid in the first year
- Quoting a 2026 rule for a pre-2026 year. A rectification for tax year 2024-25 is governed by the 1962 Rules, whatever your current bookmark says.
- Assuming the old rule number simply gained a new number. Several old rules were split across two or three new rules, and a few were merged. Always confirm through the mapping table rather than by memory.
- Using a pre-16 April 2026 copy of the Rules. The corrigenda changed the notified text.
- Treating Appendix III as optional. Where a rule says the particulars "shall be in Part C and Part D" of a form, filing the right form with the wrong Part completed is a defective filing.