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Case lawIncome-tax Act 2025Chapter IV › Section 21
Chapter IVwas s.23, s.27

Section 21 of the Income-tax Act, 2025

Section 21 — Determination of annual value. Successor to s.23, s.27 of the 1961 Act.

Where this section sits

Section 21 is in Chapter IV — Computation of Total Income, which runs from section 13 to section 95.

← Section 20  ·  Section 22 →

What this section does

Sub-section (1) sets the annual value for section 20 as the higher of the sum for which the property might reasonably be expected to let from year to year and the actual rent received or receivable if the property or any part of it is let. Sub-section (2) cuts that down where a let property or part of it was vacant for the whole or part of the year and, owing to that vacancy, the actual rent is less than the reasonable letting sum: the annual value is then the amount actually received or receivable.

Sub-section (3) reduces the annual value by taxes, including service taxes, levied by a local authority and actually paid during the tax year by the owner, irrespective of when they became payable. Sub-section (4) keeps rent which cannot be realised out of the actual rent, subject to the rules made in that behalf.

Sub-section (5) gives property held as stock-in-trade and not let wholly or partly at any time during the tax year a nil annual value up to two years from the end of the financial year in which the completion certificate is obtained from the competent authority; "nil up to" was substituted for "nil for" by Act No. 4 of 2026 with effect from 1 April 2026. Sub-section (6) makes the annual value nil where the owner occupies the house for his own residence or cannot actually occupy it for any reason, and sub-section (7) confines that to two houses specified by the assessee and withdraws it if the house or any part of it is actually let at any time in the year or the owner derives any other benefit from it.

Why it is there

House property is taxed on a notional letting value, so the Act must say what that value is and when the notional figure gives way to the real one. Sub-sections (2) to (4) keep the owner from being taxed on rent he never got. Sub-sections (5) to (7) are concessions with hard edges, and the section states exactly how long and how many.

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
Nil annual value for completed stock-in-tradeUp to two yearsProperty held as stock-in-trade and not let wholly or partly at any time during the tax year; counted from the end of the financial year in which the completion certificate is obtained from the competent authoritySub-section (5)
Number of houses that may be taken at nil annual valueTwo housesOnly those specified by the assessee, and only where sub-section (6) applies — owner-occupied or incapable of actual occupationSub-section (7)(a)

What this means in practice

Start with the higher of expected letting value and actual rent, then apply the reducers. The vacancy rule operates only where the property was let and fell vacant. The municipal tax deduction turns on payment, not liability — taxes actually paid during the year are allowed whichever year they related to, and outstanding taxes are not. The two-house nil value is a choice the assessee specifies, lost for any house actually let for part of the year or from which he derives any other benefit.

An example

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

An individual owns three houses. Two are specified as self-occupied and taken at nil annual value. The third could reasonably be expected to let for Rs. 6,00,000 a year but was actually let for Rs. 4,50,000 because it lay vacant for three months; the shortfall being owing to the vacancy, sub-section (2) makes the annual value Rs. 4,50,000, less municipal taxes of Rs. 30,000 actually paid during the year.

Where you meet this section

You meet this section every time house property income is computed in the return — nominating which two houses are shown at nil annual value, claiming the municipal tax deduction, or deciding whether a developer's unsold flats still carry nil value.

The words themselves

shall apply only in respect of two of such houses as specified by the assessee in this behalf
Section 21(7)(a), Income-tax Act, 2025.
reduced by the taxes (including service taxes) levied by a local authority in respect of such property, actually paid during the tax year by the owner, irrespective of when such taxes became payable
Section 21(3), Income-tax Act, 2025.

What people get wrong

What this replaced

The correspondence is the Income Tax Department’s own, from its comparison utility for the 1961 and 2025 Acts. A renumbering is the easy half; whether the words changed is the half that decides cases.

See the full 1961 to 2025 concordance.

Rules that serve this section

Rules of the Income-tax Rules, 2026 that work section 21. Where the rule’s own heading names the section we say so; the rest are marked on reading the rule, which is our derivation and not the department’s. A rule that serves the section silently and that we have missed will not appear here.

All of them are in the Rules 2026 index.

Circulars of the Board on this section

A circular binds the department, not you and not a court. Every one below was written under the 1961 Act; it reaches this section because the department’s own concordance carries the provision it names to this one.

See the circulars index.

Notifications that reach this section

A notification is made under a power the Act gives and, within that power, is law. These too were made under the 1961 Act and are placed here by the department’s concordance.

See the notifications index.

Case law carried across

Read this before you rely on it. Every decision below was decided under the Income-tax Act, 1961. It appears here because it is tagged to a 1961 provision that the department’s own mapping carries to section 21. That is an inference we have drawn, not a holding on the new section: where the words changed in the move, the reasoning may not survive. Treat this as the place to start looking, not as authority on the 2025 Act.

Explainers

Read with

What this page does not tell you. It does not reproduce the section. Everything above was written from the section’s own text as the Income Tax Department publishes it — the text is here, and nothing here is advice on your facts. Where a figure matters, read the sub-section it comes from.