Section 21 of the Income-tax Act, 2025 — Annual Value of House Property: How It Is Determined

In plain language

What Section 21 says in plain English

Section 21 of the Income-tax Act, 2025 lays down the single most important starting figure for taxing a house — the "annual value". Every calculation of "Income from House Property" (Chapter under Sections 20–25) begins here. Section 21 replaces the old Section 23 of the Income-tax Act, 1961, and carries forward almost all of the earlier logic with clearer drafting.

• The basic rule (sub-section 1): The annual value is the higher of (a) the sum for which the property might reasonably be expected to let from year to year (called the "expected rent" or fair rent), or (b) the actual rent received or receivable, if the property is let.
• Municipal taxes (sub-section 3): From this Gross Annual Value you subtract municipal/local-authority taxes actually paid by the owner during the year (property tax, sewerage/water tax, etc.). This gives the Net Annual Value (NAV).
• Self-occupied nil value (sub-sections 6 & 7): Where the owner occupies the house for his own residence — or cannot occupy it for a genuine reason (e.g. job in another city) — the annual value is taken as NIL, but only for up to two houses chosen by the taxpayer.

Who it applies to

• Every owner of house property — resident or non-resident individuals, HUFs, firms and companies — whose income is charged under the house-property head.
• Landlords earning rent, and homeowners living in their own flat (even when no rent is earned).
• Builders/developers holding flats as stock-in-trade get special relief (see below).

Key conditions and limits

• Two self-occupied houses: You may treat any two houses as self-occupied with NIL value. Any additional house you own but do not let is "deemed to be let" and taxed on its expected rent.
• Municipal tax must be actually paid: Only taxes paid during the year are deductible — an unpaid but due tax gets no deduction. Taxes paid by the tenant are not deductible by the owner.
• Vacancy allowance (sub-section 2): If a let-out property stayed vacant for part of the year and the actual rent fell below the expected rent, the annual value is taken as the actual rent received.
• Unrealised rent (sub-section 4): Rent that genuinely could not be recovered from a defaulting tenant is excluded from actual rent, subject to prescribed conditions.
• Stock-in-trade (sub-section 5): Unsold flats held as stock by a builder have NIL annual value for two years from the end of the financial year in which the completion certificate is obtained.

How Section 21 interacts with related sections

• Section 20 charges "income from house property" — Section 21 supplies the annual value that Section 20 taxes.
• Section 22 then allows deductions from the annual value: a flat 30% standard deduction on NAV plus interest on borrowed capital (home loan). For a self-occupied house the interest deduction is capped at ₹2,00,000.
• Because a self-occupied house has NIL annual value, its NAV is nil and the 30% standard deduction is also nil — you still get the home-loan interest benefit up to ₹2 lakh, which can create a loss under this head.

Practical implications

• If you own three or more houses, plan which two to declare self-occupied — pick the two with the highest expected rent to reduce the deemed rent on the rest.
• Pay municipal tax before 31 March to claim it in the same year — paying after year-end pushes the deduction to the next year.
• Keep the completion certificate safe — it starts the two-year clock for builders' unsold stock.