SDLT Refunds for Non-Residents Becoming UK Residents: Spouse and Civil Partner Rules

SDLT non-resident surcharge: spouse or civil partner becoming treated as UK resident after filing

If a married couple or civil partners buy residential property jointly and pay the SDLT non-resident surcharge, a refund may still be possible if one of them later meets the post-completion UK residence test. Where the couple were living together on the effective date, and neither was acting as a trustee of a settlement, the other spouse or civil partner may also be treated as UK resident for that transaction, allowing the surcharge to be reclaimed by amending the SDLT return.

• The rule applies to certain residential purchases in England and Northern Ireland where the non-resident surcharge was paid at completion.
• If one buyer later spends 183 days in the UK in the relevant post-completion period, they may become UK resident for that transaction.
• For spouses and civil partners, special rules can treat the other joint buyer as UK resident too, even if they do not meet the day-count test themselves.
• This treatment usually depends on the couple being spouses or civil partners, living together at the effective date, and neither acting as a trustee of a settlement.
• The question is transaction-specific: a person may be treated as UK resident for SDLT on that purchase even if they would not usually be seen as UK resident.
• If both buyers are treated as UK resident under these rules, the SDLT return may be amended to claim back the non-resident surcharge.

Scroll down for the full analysis.

SDLT non-resident surcharge: what happens if one spouse becomes UK resident after the return is filed?

This page explains a narrow but important SDLT point. It deals with the higher SDLT rates for non-resident transactions and what happens if, after the SDLT return has already been submitted, one buyer later becomes UK resident under the special post-completion residence test. The key point is that the spouse or civil partner rules may mean both buyers are treated as UK resident for that transaction, even if only one of them actually meets the day-count test.

What this rule is about

For certain residential property purchases in England and Northern Ireland, a non-resident surcharge can apply. In some cases, a buyer who was non-UK resident at completion can later become UK resident for that transaction if they spend enough days in the UK during the relevant period after completion. If that happens, the SDLT return may be amended and the surcharge may be reclaimed.

This page looks at a specific situation: joint purchasers who are spouses or civil partners. The issue is whether a refund can still be claimed where only one of them later satisfies the residence test in their own right.

What the official source says

The official material says that if the individual residence test in paragraph 4(1) is met after the SDLT return is submitted, the purchaser or purchasers may be able to claim a refund of the non-resident surcharge by amending the return.

It then adds an important point about spouses and civil partners. If one individual meets that residence test, but their spouse or civil partner remains non-resident, the special rule in paragraph 12 continues to apply. That rule can treat the non-resident spouse or civil partner as UK resident for the purposes of the transaction.

In the example given by HMRC, a married couple buy a residential property jointly while both are non-UK resident. After completion, one spouse spends 183 days in the UK during the relevant period and therefore becomes UK resident in relation to the transaction. Because they were living together at the effective date of the transaction, and neither was acting as a trustee of a settlement, the other spouse is also treated as resident. On that basis, both purchasers are treated as UK resident and may amend the return to claim a refund of the surcharge.

What this means in practice

This rule matters where a jointly purchasing couple paid the non-resident surcharge at completion, but later one of them builds up enough UK presence to satisfy the statutory residence test used for these SDLT rules.

If the spouse or civil partner rule applies, you do not necessarily need both individuals to meet the day-count test separately. One spouse or civil partner becoming UK resident for the transaction may be enough for the other to be treated as resident too.

That can make the difference between:

• the surcharge remaining due because one buyer is still non-resident, and
• a refund becoming available because both are treated as UK resident for the transaction.

The practical consequence is that the analysis should not stop once you see that only one buyer has reached 183 days. If the buyers were spouses or civil partners and the paragraph 12 conditions are met, the second buyer may be treated as resident without meeting that test personally.

How to analyse it

A sensible way to approach this issue is to work through the following questions.

• Was the non-resident surcharge paid on the original SDLT return?
• Is the transaction one where the post-completion residence test can later be met, so that a refund may be claimed by amending the return?
• Has at least one individual purchaser met the relevant residence test after the return was delivered, by spending 183 days in the UK during the relevant period for that transaction?
• Are the joint purchasers spouses or civil partners?
• Were they living together at the effective date of the transaction?
• Was either of them acting as a trustee of a settlement in relation to the transaction? If so, the spouse and civil partner treatment may not apply in the same way.
• If the paragraph 12 rule applies, does it treat the other spouse or civil partner as UK resident for the purposes of that transaction?
• If both are then treated as UK resident, can the return be amended to reclaim the surcharge?

The source material does not set out the full amendment mechanics on this page, but it does make clear that where the residence test is met after the return is filed, a refund can be claimed by amending the return.

Example

Illustration based on the official example.

A married couple buy a residential property jointly in England. At completion, neither has spent any days in the UK during the relevant pre-completion period, so the non-resident surcharge is paid.

After completion, one spouse comes to the UK and remains long enough to spend 183 days here during the relevant post-completion period. The other spouse spends less time in the UK and would not qualify alone.

If they were living together at the effective date of the transaction, and neither was acting as a trustee of a settlement in relation to the purchase, the spouse rule may treat the second spouse as UK resident for that transaction as well. In that case, both purchasers are treated as UK resident and the surcharge may be reclaimed by amending the SDLT return.

Why this can be difficult in practice

The main difficulty is that this is not just a simple day-count exercise for each buyer separately. The spouse or civil partner rule can change the result.

There are several points that may need careful checking:

• whether the first buyer really has met the statutory 183-day test for the correct period
• whether the parties were spouses or civil partners at the relevant time
• whether they were living together on the effective date of the transaction
• whether either buyer was acting as a trustee of a settlement, because the official example expressly excludes that situation

Another possible source of confusion is the difference between being actually UK resident under the special SDLT test and being treated as UK resident because of the spouse or civil partner rule. The second spouse may still be non-resident in ordinary language, but treated as resident for this transaction because the legislation says so.

This is also transaction-specific. The question is not simply whether the person became UK resident generally. It is whether they became UK resident in relation to the transaction under the SDLT non-resident surcharge rules.

Key takeaways

• If one individual buyer becomes UK resident for the transaction after the SDLT return is filed, a refund of the non-resident surcharge may be available.
• Where joint buyers are spouses or civil partners, the other buyer may also be treated as UK resident under the special rule, even if they do not meet the day-count test personally.
• The facts matter, especially whether the couple were living together at the effective date and whether either was acting as a trustee of a settlement.

This page was last updated on 24 March 2026

Useful article? You may find it helpful to read the original guidance here: SDLT Refunds for Non-Residents Becoming UK Residents: Spouse and Civil Partner Rules

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