How a Small Property Share Can Cost You £29,000 in SDLT

First-time buyer relief from Stamp Duty Land Tax (SDLT) is one of the most sought-after reliefs in residential property transactions. For purchases up to £500,000, it can save a buyer thousands of pounds. But the relief is easily lost — and one of the most common reasons it is denied is the existence of a prior beneficial interest in another property.

What Is First-Time Buyer Relief?

First-time buyer relief reduces the SDLT payable on the purchase of a main residence where the buyer (and any joint buyers) have never previously owned a residential property. It applies to purchases up to £500,000 and eliminates SDLT on the first £425,000 of the purchase price.

To qualify, a buyer must not have previously owned — or had a beneficial interest in — any residential property anywhere in the world. It is this requirement that catches many buyers off guard.

The Beneficial Interest Problem

A beneficial interest does not require legal ownership. It arises wherever a person has an equitable right to the benefit of a property — for example, under a declaration of trust, a cohabitation agreement, or as a beneficiary of a discretionary trust that holds residential property.

Consider a common scenario: a family member acquires a property investment over time and, through a declaration of trust, grants a small beneficial interest — say, 23.56% — to a relative. The relative has never lived at the property and may not even have contributed financially to its purchase. Nevertheless, from an SDLT perspective, they are treated as having owned a residential property.

When that relative later comes to purchase their own home, they will not qualify for first-time buyer relief. This applies regardless of:

• The size of the beneficial interest held
• Whether the individual has ever lived at the property
• How the interest was acquired (gift, trust, inheritance)
• Whether the interest was acquired gradually over a number of years

The rules are clear and unforgiving on this point.

The Additional Dwelling Surcharge

The position can be worse still. Where a buyer already holds a beneficial interest in a residential property at the time of their purchase, the acquisition may be treated as the purchase of an additional dwelling — triggering the 5% higher rates surcharge on top of the standard SDLT rates.

The surcharge applies where:

1. The buyer owns (or has a beneficial interest in) another residential property at completion; and
2. The buyer is not replacing a main residence.

In the scenario described above, if the 23.56% beneficial interest is worth £40,000 or more at the time of purchase, the purchase is likely to be treated as an additional dwelling. Since the buyer has no existing main residence to replace, the higher rates surcharge would apply in full.

This means that rather than paying reduced first-time buyer rates, the buyer faces the full standard rates plus the 5% surcharge — a significantly higher SDLT liability.

Practical Implications

The practical effect can be substantial. On a £450,000 purchase, for example:

• First-time buyer relief (if available): approximately £5,000 SDLT
• Standard rates (no relief): approximately £12,500 SDLT
• Higher rates with surcharge: approximately £34,000 SDLT

The difference between qualifying for first-time buyer relief and being subject to the higher rates surcharge can therefore be in the region of £29,000 on a single transaction.

What Should You Do?

If you hold any interest in a residential property — however acquired, however small — you should take specialist SDLT advice before exchanging contracts on a purchase. The consequences of getting this wrong can be significant, and SDLT is due within 14 days of completion.

If you are already subject to the higher rates surcharge and are unsure whether it has been correctly applied, there may be grounds to review the position — particularly where the nature or value of the prior interest is arguable.

---

This article is for general information purposes only and does not constitute tax advice. If you have a specific SDLT query, please contact us for a confidential discussion.