SDLT Higher Rates: Rules for Spouses and Civil Partners Explained

SDLT higher rates when buying without your spouse or civil partner

If you are married or in a civil partnership, SDLT may look at both partners’ property ownership when deciding whether the higher rates for additional dwellings apply, even if only one person is buying. This means you usually cannot avoid the higher rates simply by buying in one name, unless you are separated in a way recognised by the law. There is also a limited rule from 22 November 2017 that ignores some transfers made only between spouses or civil partners who are still treated as living together.

• SDLT can treat a non-buying spouse or civil partner as if they were also the buyer when checking the higher-rates rules.
• The rule applies whether or not the spouse or civil partner is named on the transfer, mortgage or purchase documents.
• The spouse rule does not apply if the couple are legally separated by court order, under a formal deed of separation, or permanently separated in fact.
• From 22 November 2017, a transfer only between spouses or civil partners living together is generally ignored for higher-rates purposes.
• That 2017 disregard is narrow and does not apply if any third party has an interest in the property before or after the transaction.
• In practice, the key questions are whether the couple are treated as living together and what property interests each partner already owns.

Scroll down for the full analysis.

SDLT higher rates when you buy without your spouse or civil partner

This page explains an important SDLT rule for married couples and civil partners. If one person buys a dwelling on their own, SDLT does not look only at that buyer. It may also treat the buyer’s spouse or civil partner as if they were also the buyer when deciding whether the higher rates for additional dwellings apply. That can make a purchase subject to the higher rates even where the non-buying spouse is not named on the purchase at all.

What this rule is about

The higher rates for additional dwellings are applied by testing certain statutory conditions. In broad terms, those conditions ask whether the transaction involves a major interest in a dwelling, whether the consideration meets the minimum threshold, whether the purchaser owns another dwelling, and whether the new purchase is replacing the purchaser’s only or main residence.

For married couples and civil partners, the legislation modifies that test. If the buyer is married or in a civil partnership, SDLT may require you to look at the position of both people, not just the named purchaser. The purpose is to stop the higher rates being avoided simply by having only one spouse or civil partner buy the property.

There is also a separate rule, introduced from 22 November 2017, for transfers of interests between spouses or civil partners. Those transfers may be ignored for higher-rates purposes, but only in a narrow set of circumstances.

What the official source says

HMRC’s manual says that where an individual buys an interest in a dwelling and their spouse or civil partner is not a joint purchaser, the higher-rates test must still be applied to that spouse or civil partner as if they were the purchaser. In practice, if either member of the couple meets the relevant conditions, the transaction can be a higher-rates transaction.

This applies whether the spouse or civil partner is a joint purchaser or not. So the fact that only one name appears on the transfer or mortgage does not by itself prevent the higher rates from applying.

The rule does not apply if the couple are:

• legally separated by court order,
• separated by a formal deed of separation, or
• in fact separated in circumstances likely to be permanent.

HMRC links this to the meaning of “living together” in section 1011 of the Income Tax Act 2007.

The manual also explains a change from 22 November 2017. Before that date, transfers of interests between spouses or civil partners were tested in the same way as other transfers when considering the higher rates. From that date, a transaction is disregarded for higher-rates purposes if it solely involves the transfer of interests between spouses or civil partners who are treated as living together on the purchase date.

That disregard is limited. If anyone other than the spouses or civil partners has an interest in the property before or after the transaction, the transaction is not ignored under this rule.

What this means in practice

The practical effect is that a person cannot usually avoid the higher rates by buying in one spouse’s sole name where the other spouse already owns another dwelling. SDLT looks across the couple, unless they are separated in one of the ways recognised by the legislation.

For example, if a husband buys a flat in his sole name and owns no other dwelling, that does not end the analysis. If his wife owns another dwelling and they are still treated as living together, her property position may cause the purchase to fall within the higher rates.

The 22 November 2017 change matters in a different situation: transfers between spouses or civil partners. A transfer of a share in a dwelling from one spouse to the other may involve chargeable consideration, for example cash or assumption of mortgage debt. Before 22 November 2017, that kind of transfer could trigger the higher rates by applying the normal spouse rule. From that date, the higher rates are disregarded if the transaction is solely between spouses or civil partners who are living together for these purposes.

But the disregard is not a general exemption for all family rearrangements. If a third party has an interest in the property, the transaction is not ignored. HMRC’s example is a transfer involving a wife and her unrelated business partner to the wife’s husband. Because someone other than the spouses has an interest, the disregard does not apply.

How to analyse it

A sensible way to approach the issue is as follows.

• First, identify the actual purchaser or transferee and confirm that the transaction is for an interest in a dwelling.
• Second, ask whether the purchaser is married or in a civil partnership at the effective date of the transaction.
• Third, ask whether the couple are treated as living together. If they are separated by court order, deed of separation, or in fact permanently separated, the spouse rule does not apply.
• Fourth, if they are still treated as living together, test the higher-rates conditions by looking at both the purchaser and the spouse or civil partner as if each were the purchaser.
• Fifth, if the transaction is a transfer between spouses or civil partners, check the date. The special disregard only applies for transactions with an effective date on or after 22 November 2017.
• Sixth, if relying on that disregard, check carefully whether the transaction solely involves the spouses or civil partners. If any third party has an interest in the property before or after the transaction, the disregard will not apply.

The key question is not simply “who is buying?” but also “what is the property position of their spouse or civil partner, and are they treated as living together?”

Example

Illustration: A husband owns a buy-to-let property. He transfers a 50% share to his wife. She pays him some cash and takes on liability for half of the mortgage. She does not own any other residential property, but he owns several buy-to-let properties.

If the transaction’s effective date is before 22 November 2017, HMRC’s view is that the higher rates apply. Although the wife is acquiring the share, the husband’s ownership of other dwellings is taken into account because they are married.

If the effective date is on or after 22 November 2017, the higher rates do not apply, provided this is solely a transfer between spouses who are treated as living together. That is because this type of inter-spouse transfer is disregarded for higher-rates purposes from that date.

Why this can be difficult in practice

The main difficulty is that people often focus only on the named buyer. That is not enough for the higher-rates rules where spouses and civil partners are involved.

Another difficulty is the concept of separation. The legislation does not require every separated couple to have a court order or deed, because actual separation in circumstances likely to be permanent can also be enough. But that is fact-sensitive. Temporary living apart, relationship difficulty, or informal arrangements may not be enough. The outcome depends on whether the facts show a separation likely to be permanent.

A further point is that the 22 November 2017 disregard is narrow. It does not mean all transfers connected with spouses are ignored. The transaction must solely involve the spouses or civil partners, and they must be treated as living together on the effective date. If a third party has an interest in the property, that can prevent the disregard from applying.

It is also important to distinguish between two separate ideas:

• the general spouse rule, which makes SDLT test the non-buying spouse’s position as well, and
• the later disregard for certain transfers solely between spouses or civil partners.

They are related, but they do different jobs.

Key takeaways

• If you are married or in a civil partnership, SDLT may look at your spouse or civil partner’s property position even if they are not buying with you.
• This spouse rule does not apply if you are separated in one of the ways recognised by the legislation.
• From 22 November 2017, a transfer solely between spouses or civil partners who are treated as living together is disregarded for higher-rates purposes, but not if a third party has an interest in the property.

This page was last updated on 24 March 2026

Useful article? You may find it helpful to read the original guidance here: SDLT Higher Rates: Rules for Spouses and Civil Partners Explained

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