SDLT 3% (Now 5%) Surcharge When Replacing Main Residence
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Do you pay the SDLT higher rates when selling your main home and buying another one if you already own other properties?
Introduction
A common question is whether the higher rates of Stamp Duty Land Tax (SDLT) apply when a couple sell their current main home and buy a new one, even though each of them already owns another property. This often arises where one person owns a holiday home and the other owns a buy-to-let property.
The key issue is whether the new purchase counts as a replacement of the buyer’s only or main residence. If it does, the higher rates for additional dwellings may not apply, despite ownership of other properties.
The Question
A couple plan to sell the home they live in and then buy another property to live in as their new main home. The sale and purchase are intended to be consecutive transactions. In addition to their shared main residence, one of them owns a holiday property and the other owns a separately let residential property.
The question is whether the purchase of the new main home will be charged at the standard residential SDLT rates, or whether the higher rates for additional dwellings will apply because they each still own another residential property.
Nick’s Explanation
Nick’s view was that, on the facts given, the standard residential SDLT rates should apply rather than the higher rates, provided the couple are genuinely replacing their only or main residence.
In summary, his explanation was that where purchasers dispose of a previous only or main residence and buy a new dwelling intended to be their new only or main residence, the replacement of main residence exception in Schedule 4ZA Finance Act 2003 can prevent the 5% higher rates from applying.
Put simply, keeping a holiday home or rental property does not automatically trigger the higher rates if the transaction falls within the replacement rules.
The Law
The higher rates of SDLT for additional dwellings are contained in Schedule 4ZA to the Finance Act 2003.
The starting point is that the higher rates can apply where, at the effective date of the transaction, a purchaser buys a major interest in a dwelling and will own more than one dwelling, unless an exception applies.
The most important exception in this scenario is the replacement of only or main residence rule in paragraph 3 of Schedule 4ZA.
Paragraph 3(1) provides that a chargeable transaction is exempt from the higher rates if:
- the purchased dwelling is intended to be the purchaser’s only or main residence, and
- the purchaser, or the purchaser’s spouse or civil partner, has disposed of a previous only or main residence within the period of three years ending with the effective date of the purchase.
Where there are joint purchasers, the Schedule must be considered carefully because the higher rates test applies to the transaction as a whole and the position of each purchaser matters. In broad terms, however, if the joint purchase is a genuine replacement of the buyers’ main residence, the exception can apply even though one or both buyers retain other dwellings.
Analysis
The analysis usually works in four stages.
First, ask whether the property being bought is a dwelling and whether, after completion, the buyers will own more than one dwelling. In this scenario, the answer is yes. Each buyer already owns another residential property, so without an exception the higher rates would potentially be in point.
Second, ask whether the property being sold is the buyers’ only or main residence. If the home being sold is the property they actually live in as their main home, this condition is likely to be met.
Third, ask whether the new property is intended to be the buyers’ new only or main residence. If they are buying it to move into and live in as their home, this points strongly toward the replacement exception applying.
Fourth, check timing. Nick referred to consecutive transactions. If the previous main residence is sold before or at the time of the new purchase, the position is usually straightforward. Even if the sale happens after the purchase, the legislation may still allow relief by refund route if the old main residence is disposed of within the relevant time limit, but that is not the fact pattern raised here.
On those facts, ownership of the holiday property and the let property should not by itself cause the higher rates to apply. The reason is that the purchase is not being treated as an additional dwelling purchase in the ordinary sense. Instead, it is treated as a replacement of the buyers’ only or main residence.
It is important, however, that the property being sold really is the only or main residence and that the new property really is intended to become the new only or main residence. SDLT looks at the reality of occupation and intention, not just labels used by the parties.
Where readers are considering whether a property was not suitable for use as a dwelling at the time of purchase, they should note that the threshold is now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799. That issue is separate from the replacement of main residence rules, but it is sometimes raised in SDLT planning discussions and should be approached with care.
Outcome
If a couple sell their current main home and buy another property to live in as their new main home, the purchase will generally be charged at the standard residential SDLT rates rather than the higher rates, even if one owns a holiday home and the other owns a rental property.
On the facts described, the practical conclusion is that the 5% higher rates for additional dwellings should not apply, because the purchase is a replacement of the buyers’ only or main residence.
Practical Steps
To assess your own position, work through the following points:
- Confirm that the property being sold is genuinely your current only or main residence.
- Confirm that the new property is intended to be your new only or main residence.
- Check the timing of sale and purchase, especially if they do not complete on the same day.
- Consider the ownership position of each buyer, because SDLT on joint purchases depends on the circumstances of all purchasers.
- Keep evidence of occupation and intention, such as correspondence, moving arrangements and utility setup, in case HMRC ever asks for support.
- Make sure the SDLT return is completed on the correct basis at completion.
Conclusion
Owning other residential properties does not automatically mean the SDLT higher rates apply. If you are selling your old main home and buying a new one to live in as your replacement main residence, the standard residential rates will usually apply instead.
Legal References Used
- Finance Act 2003, Schedule 4ZA
- Finance Act 2003, Schedule 4ZA, paragraph 3(1)
- Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799
This page was last updated on 22 March 2026.
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