SDLT: what buying property really costs in tax

Stamp Duty Land Tax (SDLT) is a one-time tax you pay when you buy property or land in England and Northern Ireland. It is a major cost to factor into your purchase budget and works differently depending on whether you are a first-time buyer, buying a second home, or relocating from abroad.

Where SDLT applies: England, Northern Ireland, and the devolved alternatives

SDLT only applies to property purchases in England and Northern Ireland. If you are buying in Scotland or Wales, you will pay a different tax instead. Knowing which tax applies is essential for your budget and timeline.

Scotland: Land and Buildings Transaction Tax (LBTT)

In Scotland, the equivalent tax is the Land and Buildings Transaction Tax, administered by Revenue Scotland. The LBTT threshold and rates differ from SDLT, and first-time buyers in Scotland have different relief thresholds. The system is banded like SDLT but with its own rate structure.

Wales: Land Transaction Tax (LTT)

Wales introduced its own Land Transaction Tax in April 2018, administered by the Welsh Revenue Authority. Like SDLT, LTT is banded by purchase price, but Wales does not offer first-time buyer relief. A higher surcharge applies to second homes and buy-to-let purchases in Wales, similar to English rules.

How SDLT rates work: the banded system

SDLT is charged in bands based on the purchase price. This means you pay a different rate only on the portion of the price that falls within each band, not on the entire amount. Understanding the bands helps you estimate your bill accurately.

For a standard residential property purchase in England and Northern Ireland from 1 April 2025, the main bands are: nothing on the first £125,000; 2 per cent on £125,001 to £250,000; 5 per cent on £250,001 to £925,000; and 10 per cent on amounts over £925,000. These rates apply to buyers who are not first-time buyers and who are not buying an additional property.

First-time buyer relief: how much you can save

If you have never owned a residential property anywhere in the world, you may qualify for first-time buyer relief. This is one of the most valuable SDLT reliefs and can save thousands of pounds. To qualify, your property must be your main residence and the purchase price must not exceed £500,000.

Under the current rules (from 1 April 2025), as a first-time buyer you pay no SDLT on the first £300,000 of a property costing up to £500,000. On the portion above £300,000 (but not exceeding £500,000), you pay 5 per cent. If the property costs more than £500,000, you lose all first-time buyer relief and pay standard rates on the entire price.

Second homes and additional properties: the 5% surcharge

If you already own a residential property and are buying another one (such as a second home, holiday home, or buy-to-let investment), you pay higher SDLT rates. From 31 October 2024, the surcharge on additional residential dwellings increased from 3 per cent to 5 per cent.

This 5 per cent higher rate surcharge is added on top of the standard SDLT rates for every band. So on a second home purchase of £300,000, you would pay the standard rates plus an additional 5 per cent on the entire amount. This significantly increases your SDLT bill and is an important factor when budgeting for a second property purchase.

Non-resident surcharge: 2% if you are not UK-based

If you are not a UK resident, you face an additional 2 per cent SDLT surcharge on top of all other applicable rates. The non-resident surcharge applies to individuals, companies, partnerships, and trusts where one or more of the owners or controllers is non-UK resident.

For SDLT purposes, you are considered UK resident if you have been physically present in the UK for at least 183 days during the 12-month period ending on the completion date. This test is based purely on physical presence in the UK, not on immigration status, citizenship, or visa type. Many expats, students, and overseas workers may meet this threshold without realising it.

The non-resident surcharge is charged on top of standard rates and the higher rates for additional dwellings. So if you are a non-resident buying a second home in England, you would pay standard SDLT, plus the 5 per cent additional dwellings surcharge, plus the 2 per cent non-resident surcharge.

Calculating your SDLT bill: worked example

Let's say you are a first-time buyer purchasing a property for £350,000 in England. You would pay: £0 on the first £300,000; and 5 per cent on £50,000 (the portion above £300,000), which equals £2,500. Your total SDLT is £2,500.

Now suppose you are already a UK homeowner and you are buying a second home for £350,000 in England. You would pay standard rates plus the 5 per cent additional dwellings surcharge. The bill would be substantially higher. If you are also a non-resident, the 2 per cent non-resident surcharge would be added on top, making the total even larger.

Filing and paying SDLT: the 14-day deadline

SDLT must be paid and a return filed with HMRC (Her Majesty's Revenue and Customs) within 14 days of the effective date of the transaction. The effective date is usually the completion date, when the money is transferred and you take ownership of the property. The 14-day period includes weekends and bank holidays, so plan accordingly.

In practice, your solicitor will arrange payment on your behalf as part of the conveyancing process. You provide the funds before completion, and your solicitor files the return and pays HMRC electronically (usually by bank transfer or CHAPS, a fast payment system). Your solicitor receives an SDLT5 certificate from HMRC, which is essential for registering the property at HM Land Registry in your name.

Your role in the process

Although your solicitor handles most of the filing and payment mechanics, you bear the legal responsibility for ensuring SDLT is paid correctly and on time. Before completion, check the SDLT figure shown on your completion statement and confirm with your solicitor that the calculation is correct. Verify that all reliefs and surcharges have been properly applied.

Ensure you provide your solicitor with all the information they need: your residential status (whether you have been in the UK for 183 days in the past 12 months), details of any other properties you own, and confirmation that you are a first-time buyer if that applies. Any errors or incomplete information can delay the filing and risk penalties.

Key takeaways for expats and overseas buyers

• SDLT applies only in England and Northern Ireland; Scotland and Wales have their own land transaction taxes with different rates.
• The tax is banded, so you pay different rates on different portions of the purchase price.
• First-time buyers benefit from significantly lower rates if the property costs £500,000 or less and you have never owned property anywhere in the world.
• Second homes attract an additional 5 per cent surcharge on top of standard rates.
• Non-residents pay an extra 2 per cent surcharge unless they have been in the UK for at least 183 days in the past 12 months.
• SDLT and a return must be filed within 14 days of completion; your solicitor usually handles this, but you are legally responsible.
• Late payment triggers automatic penalties and interest, and late filing may prevent registration of the property at Land Registry.