Understanding stamp duty in England and Northern Ireland

01

Choose the right tax system first

The property’s location selects the tax system. England and Northern Ireland use SDLT. Wales uses LTT and Scotland uses LBTT, each with its own rates and reliefs. A UK-wide search for “stamp duty” can therefore lead to the wrong calculation if you skip this step.

Write the jurisdiction at the top of your buying budget. If you are comparing homes on different sides of a national border, calculate each separately. Do not carry a relief or surcharge assumption from one system into another.

Select the jurisdiction in the stamp duty calculator

02

Read the standard residential bands

At the source check on 21 October 2026, the standard residential bands were: 0% up to £125,000; 2% on the next £125,000; 5% from £250,001 to £925,000; 10% from £925,001 to £1.5 million; and 12% above £1.5 million. These are marginal bands, charged on the portion within each band.

For an illustrative £350,000 standard-rate purchase, the calculation is £0 on the first £125,000, £2,500 on the next £125,000 and £5,000 on the remaining £100,000: £7,500 altogether. This example assumes no relief, surcharge or special transaction treatment. It is not an estimate of local house prices.

03

Check relief and additions before relying on the total

First-time buyer relief currently provides no SDLT up to £300,000 and 5% on the portion up to £500,000 for qualifying purchases. Above £500,000 the relief is unavailable. Eligibility must be checked for every buyer.

Additional-property transactions usually add five percentage points to the residential rates. The non-UK resident surcharge is usually two percentage points. These rules can interact; replacing a main home, residence tests and refund conditions need individual checking.

Read the overseas-buyer stamp duty guide

04

Allow for tax in completion cash

Keep the tax allowance separate from your deposit and from the solicitor’s own fee. A plan that spends every available pound on the deposit can leave a shortfall when tax and other purchase costs become due.

HMRC normally requires the return and payment within 14 days of the effective date of the transaction, usually completion. Your solicitor or conveyancer often handles the submission, but agree who is doing it and check the paperwork. A transaction may require a return even where no tax is payable.

Include tax in the full purchase-cost plan

05

Recognise cases that need a different calculation

The residential calculator is useful for the buyer positions it offers. It does not establish the correct legal treatment of a company purchase, mixed-use property, linked transactions, shared ownership or unusual lease arrangements.

Before making an offer in a complex case, give the adviser the full facts: ownership interests elsewhere, the parties buying, intended use and relevant dates. A precise answer starts with correct classification rather than a more precise-looking calculator total.

• Record the calculation date and the assumptions used.
• Check each buyer’s status rather than only the lead applicant’s.
• Recalculate if the price or ownership structure changes.