Bagging a home for less than its market price can feel like a win. Maybe it’s a family deal, a
motivated seller, or a rare bargain. However, discounted property purchases can raise
eyebrows, not just with HMRC.
Legal, financial, and even future ownership risks can surface if you’re not careful. Read on to understand what could go wrong before you jump at that price tag.
Stamp duty based on market value, not sale price
When you buy below market value, Stamp Duty Land Tax (SDLT) may still be calculated on
the full market value, especially in family transactions or gifted arrangements. HMRC looks at what the property is worth, not just what you paid to determine tax liability.
Underpaying SDLT can lead to fines or legal trouble.
Gifted equity must be disclosed
If a seller, usually a relative, gifts part of the home’s value, that gifted equity must be declared. Your solicitor will need to inform your lender and HMRC. Undisclosed gifted contributions can delay your mortgage or trigger fraud checks.
Survey insight is still crucial
Even if the deal feels like a steal, you still need to know what you’re buying into. A HomeBuyer Report, which covers major visible issues like damp, roof damage, or Japanese Knotweed, can highlight any deal-breaking flaws early.
Booking a property survey in London, for example, may help you catch structural issues or unexpected repairs that wipe out any upfront savings.
Mortgage lenders may raise concerns
Not all lenders are keen on below-market-value purchases. They’ll want assurance that the
price isn’t hiding underlying issues or risky relationships. You might need a Red Book valuation to justify the price and prove the deal isn’t skewed. If your lender isn’t convinced, the mortgage could be rejected.
Insolvency law could affect ownership
If the seller goes bankrupt within five years of the sale, the transaction might be investigated. This is especially risky if the property was sold far under value. Creditors could claim the sale was done to avoid debts, and in some cases, the transaction could be reversed by the courts.
Inheritance Tax risks for family deals
If you bought the property at a discount from a relative who dies within seven years, HMRC may treat that discount as a Potentially Exempt Transfer. Depending on the estate value,
Inheritance Tax (IHT) might apply. This could add unexpected costs to your purchase later.
Anti-money laundering checks are tighter
Solicitors are legally required to investigate unusual transactions. That includes sales below
market value. Be prepared to explain your relationship with the seller, where your funds come from, and provide extra paperwork to comply with money laundering regulations.
Capital gains tax still applies to the seller
Selling at a loss doesn’t let the seller off the hook. If it’s not their main residence, they may still face Capital Gains Tax on the market value, not the price you paid. This can cause tension or delays if it isn’t anticipated early on.
Final word
Buying property below market value isn’t illegal but it’s full of potential traps. From tax
obligations to legal ownership risks, each discount carries responsibilities you can’t afford to
overlook. Always consult with a solicitor and make sure you’ve had a proper survey. It could be the best money you spend before saving thousands.
