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Case lawIncome-tax Rules 2026 › Rule 1
Rules 2026s.533

Rule 1 of the Income-tax Rules, 2026

Rule 1 — Short title and commencement. Made under s.533 of the Income-tax Act, 2025.

Where this rule sits

Rule 1 gives effect to Section 533 of the Income-tax Act, 2025. A rule cannot go beyond the section it serves: where the two seem to differ, the section governs.

Rule 2 →

What this rule does

The rule names the instrument and fixes the date it begins to operate. Sub-rule (1) provides that these rules may be called the Income-tax Rules, 2026. Sub-rule (2) provides that they shall come into force on the 1st April, 2026.

The opening words above the rule record where the power comes from and how the rules were made: the Central Board of Direct Taxes makes them in exercise of powers conferred by section 533 of the Income-tax Act, 2025 (30 of 2025), by notification G.S.R. 198(E), dated 20-3-2026.

Why it is there

Section 533 gives the Board power to make rules but does not say what a set of rules made under it is to be called, or from when it operates. Sub-rule (1) fixes the citation that every other rule, form and order in this body of law refers back to. Sub-rule (2) fixes one date from which the whole set takes effect, which is later than the date the notification was issued.

Who it applies to

The figures, and what each one turns on

Read the condition in the same row. A figure quoted without it is a wrong answer with a citation attached.
WhatFigureThe condition on itWhere
Date the rules come into force1st April, 2026Applies to the set of rules as a wholeRule 1(2)
Date of the notification making the rules20-3-2026G.S.R. 198(E), the notification by which the Board made the rules under section 533Opening words above rule 1

What this means in practice

The date of the notification and the date of commencement are not the same. G.S.R. 198(E) is dated 20-3-2026, but sub-rule (2) says the rules shall come into force on the 1st April, 2026, so nothing in this set operates in the eleven days between. Rule 1 is not a source of power either; the power is section 533 of the Act, and every rule in the set has to stand within it. Where a form or an order refers to a requirement "under the Income-tax Rules, 2026", sub-rule (1) is what makes that citation the right one.

An example

Illustrative only, and invented for this page. The figures are chosen to show the requirement biting, not taken from any real matter.

The rules are notified on 20-3-2026. An act done on 25 March 2026 is not governed by any rule in this set, because sub-rule (2) brings them into force only on the 1st April, 2026. The same act done on 2 April 2026 is.

Where you meet this rule

You meet it as the citation line, not as an obligation: any notice, form or order that requires something "under the Income-tax Rules, 2026" is using the name sub-rule (1) gives. It also settles any argument about whether a rule in this set could govern something done before the 1st April, 2026.

The words themselves

These rules may be called the Income-tax Rules, 2026.
Rule 1(1), Income-tax Rules, 2026.
They shall come into force on the 1st April, 2026.
Rule 1(2), Income-tax Rules, 2026.

What people get wrong

What this page does not tell you. It does not reproduce the rule. Everything above was written from the rule’s own text as the Income Tax Department publishes it — the text is here. A rule is subordinate legislation: it prescribes the method, the form or the period, and it cannot enlarge the charge the section imposes. Where a figure matters, read the sub-rule it comes from.