Buy a house with a UK visa, how is the overseas additional tax calculated?

I think that, when buying a property in the UK, overseas property ownership situations and two additional taxes should be clarified in writing before exchanging contracts, and the tax payments should also be set aside separately.

Only estimate the budget by adding an "overseas buyer tax" to the property price. For families that still have a house abroad, this may result in leaving a large amount of cash behind. To determine the payment amount, the property location, existing ownership, and non-resident determination should be calculated separately. This article refers to the current rules as of October 8, 2026, focusing on the Stamp Duty Land Tax (SDLT) for individuals purchasing residential properties in England and Northern Ireland; Scotland and Wales have different tax systems. The following process is based on a typical residential property transaction in England.

2% and 5% may be calculated together

2% non-resident surcharge and 5% additional residential surcharge can be applied simultaneously.

HMRC's guidance on SDLT rates for non-UK residents states that a 2% surcharge is added to other applicable residential rates; the 5% additional rate for extra homes requires checking global property ownership, including overseas properties. Even if intending to live in it, verification is still required. Exceptions exist for situations such as selling and replacing a main residence, and conclusions cannot be drawn solely based on the number of houses. When both apply, it is an additional 7 percentage points on the standard marginal rates, not multiplying the tax payable by 7%.

The following is calculated according to the current tax rate: house price £500,000, no first-time buyer or other exemptions, purchasing a standard freehold residential property.

This example omits the additional residence item, so the tax will be short by £25,000.

继承的半套房，要核两种资格

有境外房产时，只填“英国首次买房”，与把全部产权交给律师核对，算出的税款可能不同。HMRC手册SDLTM09795有一个实用例外：因继承成为住宅共有人，购房交易生效日在继承后三年内，且本人和配偶或民事伴侣的合计份额在相关期间未超过50%，这份继承权益可在判断额外住宅高税率时忽略。这里要求的是继承取得的共有权益；生前赠与不能直接套用。准备材料时，需要一并提供继承文件、取得权益的日期和份额变化，不能只报现在占多少。

这项例外只处理额外住宅高税率，首购减免还要另审。

另一页SDLTM29845写明，首购资格看全球范围内是否曾取得符合定义的住宅产权，继承、赠与及部分份额都在核查范围，金额小也不自动排除。因此，符合上述继承例外的人，可能无需加5%，却仍不具备首购减免资格。已卖掉那份权益，也不会清除“曾经拥有”的记录。

Align the documents and invoices before exchanging the contract.

My choice is to complete the accounting first and then exchange the contract, and any doubts about the tax amount should be resolved before the exchange.

In normal transactions in England, after the offer is accepted, the formal loan application, lawyer's search and independent house inspection can be proceeded simultaneously. Those applying for a loan with a UK visa should confirm the identity document requirements with the lender and prepare their passport, residence permit, income documents and source of down payment. Another list to be handed over to the conveyancing lawyer specifies each buyer's global residential interests, method of acquisition, share held, intended use of the property and residence records. According to the UK government's "How to buy a home" process, before exchanging contracts, the loan, necessary checks and available funds should be secured; then the tax details should be verified, and the tax, legal fees and other expenses should be separately allocated from the down payment.

Subsequent expenditures on leased property should also be clarified before the exchange.

If the property is leasehold, the lawyer's report should specify the remaining lease term, service charges and ground rent, as well as any known major repair plans. The UK government's home buying guide also reminds that a mortgage valuation is not equivalent to an independent survey; whether to hire a surveyor should be assessed based on the condition of the house, and this cost should be included in the budget.

After Exchange (Exchange Contract), the transaction is usually legally binding, and exiting may involve compensation.

Completion (settlement) involves the final payment and obtaining the keys. SDLT filing and tax payment usually need to be completed within 14 days from the effective date of the transaction, which is generally the settlement date; early substantive performance of the contract may change the starting date. Even if the buyer entrusts a lawyer to handle it, the buyer should still request confirmation of the filing and payment.

This document is for reference only. For specific issues, please consult a licensed attorney.

[Data Source] HMRC Residential Rates and Non-Resident Surcharge Guidance; HMRC Stamp Duty Land Tax Manual SDLTM09795, SDLTM29845, SDLTM00060; UK Government Home Buying Guide "How to Buy a Home".

HMRC manual SDLTM00060 original text:
"The purchaser is responsible for making a land transaction return and paying the SDLT within 14 days of the effective date of the transaction."

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