Every property sale in India carries two prices: the price the parties actually agree to, and the state government’s stamp-duty circle rate for that property. When the agreed price falls more than 10% below the circle rate, the tax law doesn’t treat the gap as a private matter between buyer and seller - it taxes it twice, on two different people.
- The seller, under Section 50C, is deemed to have received the circle rate as the sale consideration for capital gains purposes, regardless of what was actually paid - the gain is computed as if the higher, notional price was the real one.
- The buyer, under Section 56(2)(x), is separately taxed on the shortfall itself - the difference between circle rate and actual price - as income from other sources, in the year of purchase.
One Gap, Two Taxpayers, Assessed Independently
The identical rupee gap is the tax base for both provisions, assessed independently on two different taxpayers in the same transaction. A 10% tolerance band exists on both sides - if the agreed price is within 10% of the circle rate, neither provision is triggered - but once the gap exceeds that band, both sides face tax on it, not just the one who might seem to have benefited.
Genuine Below-Market Sales Are the Exposed Case
This matters most for transactions that are genuinely priced below circle rate for real reasons - a distressed sale, a below-market family transfer, a property with a title issue depressing its market value - rather than any attempt to under-declare the price. In all of those cases, the buyer ends up with a tax bill on a benefit they may not feel they received, and the seller is taxed on a gain larger than what they actually collected, from the identical, single gap between two numbers on the sale deed.
Check the circle rate against the agreed price before signing, and keep the gap inside the 10% band where the facts allow. A distressed sale or a family transfer priced honestly below market still triggers both provisions - the buyer on a benefit they may not feel they received, the seller on a gain never collected.
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