UK stamp duty for non-resident buyers: SDLT surcharges, company ownership and capital gains tax on sale

The UK does not ask a foreigner for permission to buy — it charges a surcharge instead. The gap between the total cost for a local first-time buyer and for a non-resident buying a second property is measured not in percentage points but in multiples of the tax bill.

Stamp duty and three layers of surcharges

The main transaction tax is Stamp Duty Land Tax (SDLT in England and Northern Ireland; Scotland and Wales have their own equivalents with their own bands). It is charged on a progressive scale based on the price, and surcharges can be stacked on top of the standard bands.

• The non-resident surcharge. A buyer who does not spend enough days in the UK pays additional percentage points on top of the standard rate.
• The additional-dwelling surcharge. If the property is not your only home anywhere in the world, a second surcharge applies; its rate has been raised in recent years.
• Buying through a company. Residential property above a set threshold bought by a legal entity attracts a single higher flat rate — buying "through a structure" here makes the deal more expensive, not cheaper.

The surcharges add up, so the total is calculated not from one rate in a table but from the whole combination. Non-resident status is tested by the number of days spent in the country around the date of the transaction; if your status later changes, the surcharge may be refunded, and that is a separate procedure with its own deadline.

An annual tax for companies

Residential property above a threshold value held by a company is subject to an annual tax on enveloped dwellings. Reliefs exist — for instance, for properties let to unconnected third parties on commercial terms — but a return still has to be filed, and failing to file carries a penalty in itself.

Owning and letting

• Council tax — a local charge that depends on the property's band and the area; many councils charge more for homes left empty long term.
• A non-resident's rental income is subject to UK tax. By default the letting agent or tenant withholds tax at source; the owner can obtain approval to receive rent gross and report it themselves.
• Mortgage interest relief for individual landlords is restricted — a reform that has noticeably changed the economics of private letting in the country.

Selling: capital gains tax and 60 days

Non-residents pay capital gains tax on the sale of UK property — the regime now covers all property, not just residential. The key practical detail: the disposal must be reported and the tax paid within a short window after completion — around two months — and this is a separate obligation that the annual return does not replace. Missing the deadline is penalised.

The practical takeaway

• Cost the deal as a whole. The standard bands plus two surcharges add up to a substantial share of the price, and it is payable upfront.
• Do not buy through a company out of habit. In the UK, corporate ownership of a home costs more than personal ownership, both at purchase and every year.
• Plan for the 60 days on exit. The post-sale report and payment are a hard deadline, and people remember it later than they should.

Based on UK legislation on stamp duty land tax, the annual tax on enveloped dwellings and capital gains tax for non-residents.