Chapter IV - Computation of Total Income
Section 78
Section 78: special provision for full value of consideration in certain cases
Section 78 addresses under-valued property sales for capital gains purposes - when land or a building is sold for less than its stamp duty valuation, the stamp duty value is generally used as the deemed sale consideration instead of the actual price. It is the successor to Section 50C of the old Act, and it includes a safe-harbour tolerance band and a dispute-resolution route through a Valuation Officer.
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This article is for general information. Refer to the Income-tax Act, 2025 as amended by the Finance Act, 2026 and the Taxation and Other Laws (Amendment) Act, 2026 for the official provisions. If you need professional advice for your situation, contact Bizeneed.
Statutory text
Bare law
(1) If the consideration received or accruing from the transfer of a capital asset, being land or building or both, is less than the stamp duty value, then, for the purposes of section 72, the stamp duty value shall be deemed to be the full value of the consideration received or accruing as a result of such transfer, subject to the following:— (a) the stamp duty value on the date of agreement may be taken as the full value of consideration, if— (i) the date of the agreement fixing the consideration and the date of registration for the transfer of the capital asset are not the same; and (ii) part or full consideration is received on or before the date of the agreement in “specified banking or online mode” as defined in section 66(32); (b) if the stamp duty value does not exceed 110% of the consideration received or accruing from such transfer, such consideration shall be deemed to be the full value of the consideration for section 72.
(2) Without prejudice to the provisions of sub-section (1), the Assessing Officer may refer the valuation of the capital asset to a Valuation Officer, and the provisions of section 269(3) to (8), shall, with necessary modifications, apply in relation to such reference, where— (a) the assessee claims that the stamp duty value exceeds the fair market value of the property as on the date of transfer; and (b) the stamp duty value has not been disputed in any appeal or revision or no reference has been made before any other authority, court or the High Court.
(3) If the value determined by the Valuation Officer on a reference made under sub-section (2) exceeds the stamp duty value, such stamp duty value shall be taken as the full value of consideration.
Introduction
Capital gains on land or building can use stamp value in place of a lower contract price. Before substituting, test the 110% tolerance, agreement-date option and valuation challenge route.
Key takeaways
Land or building below stamp value
If consideration for a transferred capital asset consisting of land or building is below stamp duty value, that value can be deemed the full consideration for the Section 72 computation, subject to statutory safeguards.
Agreement-date value
The stamp value on the agreement date may be used when agreement and registration dates differ and the specified payment condition is met by the agreement date.
Value dispute
Where the statutory conditions for a dispute are met, a valuation reference can be made instead of simply accepting the stamp authority's value.
The core rule
Section 78(1) provides that if the consideration received or accruing from transfer of land or building (or both) is less than the stamp duty value, the stamp duty value is deemed to be the full value of consideration for purposes of Section 72, subject to two qualifications:
- If the date of the agreement fixing the consideration is different from the date of registration of the transfer, and part or full consideration was received on or before the agreement date through a "specified banking or online mode" (as defined in Section 66(32)), the stamp duty value as on the agreement date may be used instead of the value on the registration date.
- If the stamp duty value does not exceed 110% of the actual consideration received, the actual consideration is treated as the full value of consideration (i.e. the deeming rule does not kick in within this 10% tolerance band).
Disputing the stamp duty value
Section 78(2) allows the Assessing Officer to refer the valuation to a Valuation Officer (applying Section 269(3) to (8) with necessary modifications), where the assessee claims the stamp duty value exceeds the property's fair market value as on the transfer date, and that stamp duty value has not been disputed in any appeal, revision or other proceeding.
Section 78(3) provides that if the Valuation Officer's determined value exceeds the stamp duty value, the stamp duty value (not the higher valuation) is taken as the full value of consideration.
Document each valuation date
Compare stated consideration and registration-date stamp value, then test the safe harbour.
Where an earlier agreement fixed the price, preserve the specified banking or online receipt on or before that date before using the agreement-date stamp value.
Step-by-step flow for applying Section 78
- 1
Is the capital asset land, building or both?
- No: Section 78 does not apply; see Section 79 or 80 where relevant.
- Yes: Go to the next step.
- 2
Is the consideration less than the stamp duty value?
- No: Use the actual consideration.
- Yes: Go to the next step.
- 3
Were the agreement and registration on different dates, with some consideration paid on or before the agreement through specified banking or online mode?
- Yes: The stamp duty value on the date of agreement may be used.
- No: Use the stamp duty value on the date of transfer.
- 4
Does the stamp duty value exceed 110% of the consideration?
- No: The actual consideration is accepted (Section 78(1)(b)).
- Yes: Stamp duty value is deemed to be the full value of consideration.
- 5
Do you claim the stamp duty value exceeds fair market value?
If the value has not been disputed elsewhere, the Assessing Officer may refer it to a Valuation Officer. If the Valuation Officer's value is higher than the stamp duty value, the stamp duty value is used (Section 78(3)).
Practical checklist
Do
- Retain agreement, registration, bank-payment and stamp valuation evidence.
- Where the stamp value exceeds fair market value, document the valuation dispute and test the statutory reference conditions.
Avoid
- Do not automatically substitute stamp value when it lies within the 110% tolerance.
- Do not use the agreement-date valuation without the specified payment condition.
Illustrative example
Worked example: sale below circle rate
Hypothetical facts (illustration only, not a real taxpayer): A shop is sold for ₹90 lakh. The agreement was signed on 1 May, when ₹10 lakh was paid by bank transfer, and the sale deed was registered on 1 September. Stamp duty value was ₹97 lakh on 1 May and ₹1.05 crore on 1 September.
Which date
Dates differ and part payment was made through specified banking mode on or before the agreement, so the 1 May value (₹97 lakh) may be used.
110% test
110% of ₹90 lakh is ₹99 lakh. ₹97 lakh does not exceed it.
Result
Section 78(1)(b) applies, so the actual consideration of ₹90 lakh is taken as the full value.
Outcome
- Capital gain is computed on ₹90 lakh.
- Had the 1 September value been used (₹1.05 crore, above ₹99 lakh), the stamp duty value would have been substituted.
Glossary
- Stamp duty value
- Value adopted, assessed or assessable by the stamp valuation authority for the property.
- Valuation Officer
- Officer to whom disputed valuation can be referred under the section's conditions.
Frequently asked questions
What happens if I sell property for less than its stamp duty value?
The stamp duty value is generally treated as the sale consideration for capital gains purposes under Section 78(1), unless it does not exceed 110% of the actual consideration received, in which case the actual consideration is used.
Can I use the stamp duty value as of the agreement date instead of the registration date?
Yes, if the agreement date and registration date differ and at least part of the consideration was received on or before the agreement date through a specified banking or online mode, per Section 78(1)(a).
What if I believe the stamp duty value is higher than the actual fair market value?
You can ask the Assessing Officer to refer the valuation to a Valuation Officer under Section 78(2), and if the Valuation Officer's figure exceeds the stamp duty value, the stamp duty value (the lower figure) is still used, per Section 78(3).
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Get expert help on property sale capital gainsLast updated 9 October 2026