Buying or Selling Property Below Circle Rate: Section 50C, Section 56(2)(x) and the 110% Safe Harbour

A property deal is the one transaction where the Income Tax Department refuses to accept your sale price at face value.

If you sell a flat for Rs 80 lakh but the state government's circle rate says it is worth Rs 95 lakh, the department taxes the seller as if Rs 95 lakh was received. Worse, it taxes the buyer separately on the Rs 15 lakh gap as income from other sources. The same rupee difference gets taxed twice, in two different hands, under two different sections.

This is not a rare edge case. Circle rates in many cities were fixed when the market was hot and were never revised downward. Genuine, fully white, bank-financed transactions routinely close below the circle rate, and both parties get a notice a year later.

Here is exactly how Section 50C and Section 56(2)(x) work for AY 2026-27, and the one threshold that protects most honest deals.

What Stamp Duty Value Actually Means

The law never uses the phrase "circle rate". It uses stamp duty value, defined as the value adopted, assessed, or assessable by any authority of a state government for the purpose of paying stamp duty on the transfer.

In practice this is the same number your registrar uses, whatever your state calls it:

The word assessable matters. Even if the deal is never registered, the value that would have been assessed still applies. You cannot escape the section by skipping registration.

Section 50C: The Seller's Problem

Section 50C applies when you transfer a capital asset that is land, a building, or both.

If the consideration you actually received is less than the stamp duty value, the stamp duty value is deemed to be the full value of consideration for computing capital gains under Section 48.

Note the scope carefully. Section 50C covers immovable property held as a capital asset. If you are a builder or a dealer holding property as stock in trade, the mirror provision is Section 43CA, which works identically. Neither section applies to tenancy rights, plant and machinery, or shares in a housing society where the underlying asset is not directly transferred.

The 110% Safe Harbour

The third proviso to Section 50C(1) gives you a tolerance band.

If the stamp duty value does not exceed 110% of the actual consideration, the actual consideration is accepted as it is.

This limit was raised from 105% to 110% by the Finance Act 2020 and continues unchanged for FY 2025-26. The safe harbour is all or nothing. Cross 110% by even one rupee and the entire stamp duty value replaces your sale price, not just the excess above 110%.

An example makes the cliff obvious.

Between B and C the stamp duty value rises by Rs 50,000, but the seller's taxable consideration jumps by Rs 8.5 lakh. At the 12.5% long term rate that is roughly Rs 1.06 lakh of extra tax created by a Rs 50,000 difference in the government's own rate table.

If you are anywhere near the boundary, it is worth restructuring the price rather than arguing later.

Section 56(2)(x): The Buyer's Problem

Most buyers have never heard of this one until the notice arrives.

Under Section 56(2)(x)(b), if you receive immovable property for a consideration that is less than the stamp duty value, the shortfall is taxed in your hands as income from other sources, but only if that shortfall exceeds the higher of Rs 50,000 and 10% of the consideration.

So the buyer's tolerance band mirrors the seller's, with an extra absolute floor of Rs 50,000 for small transactions.

Take the same flat. Sale price Rs 80 lakh, stamp duty value Rs 92 lakh.

• Shortfall: Rs 12,00,000
• Threshold: higher of Rs 50,000 and 10% of Rs 80,00,000, which is Rs 8,00,000
• Shortfall exceeds the threshold, so the entire Rs 12,00,000 is taxable, not just the excess over Rs 8 lakh

For a buyer already in the 30% bracket, that is about Rs 3.74 lakh of tax including cess, on a purchase where no income was earned at all. It is taxed at slab rates under both the old and the new regime, and no deduction, no set off against a loss under any other head, and no reinvestment exemption is available against it.

The same seller is separately paying capital gains tax on the uplift to Rs 92 lakh. The tax system genuinely taxes the same Rs 12 lakh twice.

When Section 56(2)(x) Does Not Apply

The section carves out receipts from:

• A relative as defined in the section, which includes spouse, siblings, siblings of the spouse, siblings of either parent, lineal ascendants and descendants, and their spouses
• Property received on the occasion of the marriage of the individual
• Property received under a will or by inheritance, or in contemplation of death of the payer
• Property received from a local authority, a registered charitable trust or institution, or under specified restructuring schemes

A flat gifted by your father is fully outside Section 56(2)(x), whatever its circle rate. A flat sold to you cheaply by a friend or a former employer is squarely inside it. Our complete guide to gift taxation rules in India covers the relative definition in detail.

The Agreement Date Rule That Saves Under Construction Buyers

This is the most useful provision in both sections and the most commonly missed.

If the date of the agreement fixing the consideration is different from the date of registration, you may use the stamp duty value as on the agreement date instead of the registration date.

This matters enormously for under construction property, where you book in 2021 and register in 2025 after circle rates have risen 40%.

The relief is conditional. At least part of the consideration must have been paid on or before the agreement date, by account payee cheque, account payee bank draft, ECS through a bank account, or another prescribed electronic mode such as NEFT, RTGS, UPI, IMPS, or a credit or debit card.

A cash booking amount destroys the benefit entirely. So does a payment made after the agreement was signed. Keep the bank statement line showing the token or booking amount clearing on or before the agreement date, because that single entry is what the assessing officer will ask for.

If You Think the Circle Rate Is Simply Wrong

You are not stuck with an inflated government rate.

Under Section 50C(2), if you claim that the stamp duty value exceeds the fair market value of the property, and you have not disputed that value in any appeal or revision before the stamp authority, the assessing officer may refer the valuation to a Departmental Valuation Officer. Section 56(2)(x) imports the same mechanism for buyers.

Two rules govern the outcome:

1. If the DVO's value is lower than the stamp duty value, the DVO's value is used
2. If the DVO's value is higher than the stamp duty value, the stamp duty value is retained, so the reference can never make you worse off

Grounds that actually work include a disputed title, an occupied or tenanted property, a lower floor or an unfavourable position, structural distress, litigation attached to the property, or a distress sale forced by a bank. Bring a registered valuer's report and comparable registered sale deeds from the same building. Simply saying the market was slow will not survive.

The Buyer's One Consolation: Section 49(4)

If you are taxed under Section 56(2)(x) on the purchase, that pain is not permanent.

Section 49(4) provides that your cost of acquisition for a future sale becomes the value that was taken into account for Section 56(2)(x), that is the full stamp duty value, not the price you actually paid.

In the example above, the buyer taxed on the Rs 12 lakh gap gets a cost of acquisition of Rs 92 lakh rather than Rs 80 lakh. When the flat is eventually sold, Rs 12 lakh less shows up as capital gain. Keep the assessment order or the ITR showing that Section 56(2)(x) inclusion, because you will need to prove that stepped up cost many years later.

How the Department Finds Out

There is no guesswork involved on their side.

Every sub registrar reports property transactions of Rs 30 lakh or more under the Statement of Financial Transactions, and the entry lands in the buyer's and the seller's Annual Information Statement with both the consideration and the stamp duty value on the same line. A mismatch between those two fields and your ITR is a fully automated flag.

This is why the notice usually arrives after the return is processed, not at registration. Our guide on correcting mismatches through AIS feedback explains how to respond when the reported figure itself is wrong.

Separately, remember that TDS under Section 194-IA is deducted at 1% on the higher of the consideration and the stamp duty value once either crosses Rs 50 lakh, a change that has applied since 1 April 2022. That is covered in our Section 194-IA and Form 26QB guide.

Reporting It Correctly in Your ITR

Sellers report the transaction in the capital gains schedule of ITR-2, where the form asks separately for the sale consideration received and the stamp duty value. If the stamp duty value is higher and outside the 110% band, the deemed figure flows into the computation automatically. Do not enter the lower figure in both boxes hoping nobody checks, because the registrar has already reported both numbers.

Buyers report the taxable difference under income from other sources.

When you upload your documents, 49Tax reads the sale deed and the AIS property entries together and flags the case where the stamp duty value breaches the tolerance band, so the deemed consideration is applied before filing rather than discovered in a notice.

For the underlying capital gains mechanics, holding period, and reinvestment options, see our guide to capital gains tax on property sale.

The Takeaway

Before you sign anything, pull the circle rate for that exact locality, floor, and property type, and divide the stamp duty value by your agreed price.

If the ratio is 1.10 or lower, both sides are safe and no deeming applies. If it is above 1.10, you have three real options: raise the documented consideration to bring the ratio inside the band, get the price justified through a Departmental Valuation Officer reference with a registered valuer's report ready, or price the extra tax into the deal and split it between buyer and seller with open eyes.

What you must not do is sign at the lower figure and assume the difference disappears because the payment was fully by cheque. Section 50C and Section 56(2)(x) are not anti black money provisions that spare honest deals. They apply to a completely clean bank transfer exactly as they apply to a cash deal.