Stamp Duty Calculator (UK)

What should I know about Standard Residential Rates?

Stamp Duty Land Tax (SDLT) in England and Northern Ireland is charged in bands, much like income tax — each portion of the price is taxed at the rate for that band, not the whole price at a single rate. The current residential bands are: nothing on the portion up to £250,000; 5% on the portion from £250,001 to £925,000; 10% from £925,001 to £1.5 million; and 12% on anything above £1.5 million. A worked example makes the band system clear: on a £400,000 home you pay 0% on the first £250,000 (nothing) and 5% on the remaining £150,000 (£7,500), for a total of £7,500 — an effective rate of under 2%, not the headline 5%. This banded approach means the marginal rate (on the next pound) is higher than the effective rate (across the whole price). Scotland and Wales operate their own equivalents — Land and Buildings Transaction Tax (LBTT) in Scotland and Land Transaction Tax (LTT) in Wales — with different bands and thresholds, so this calculator's figures apply to England and Northern Ireland. Rates and thresholds are set by the government and change periodically in Budgets, sometimes at short notice, so always confirm the current bands before committing to a purchase.

What should I know about First-Time Buyer Relief?

First-time buyers get valuable relief that reduces or eliminates SDLT on lower-priced purchases. A first-time buyer pays no SDLT on the first £425,000 of the price, then 5% on the portion between £425,001 and £625,000. Crucially, the relief is all-or-nothing at the top: if the property costs more than £625,000, you get no first-time buyer relief at all and pay the standard rates on the whole purchase. To qualify, all buyers must be first-time buyers (never having owned a residential property anywhere in the world), and you must intend to live in the property as your main residence. A worked example: a first-time buyer purchasing at £500,000 pays nothing on the first £425,000 and 5% on the remaining £75,000 — £3,750, compared with £12,500 a non-first-time buyer would pay at standard rates, a saving of £8,750. The relief makes a meaningful difference on typical first homes, though in high-price areas the £625,000 cliff edge means some first-time buyers get nothing. Like all SDLT rules, first-time buyer thresholds are subject to change in government Budgets, so verify the current figures.

What should I know about Additional Property Surcharge?

If you buy an additional residential property — a second home, a holiday home, or a buy-to-let — while still owning another, you pay a surcharge on top of all the standard rates. This higher-rate surcharge applies to the entire price (within each band), not just the portion above a threshold, which makes it a substantial extra cost. A worked example: on a £350,000 additional property, you pay the standard SDLT plus the surcharge across every band, adding several thousand pounds to the bill compared with the same property bought as a sole main residence. The surcharge is designed to dampen demand from second-home buyers and landlords. Some important nuances: if you're replacing your main residence (selling your old home and buying a new one) you don't pay the surcharge, even if there's a brief overlap — and if you pay it because the sale hadn't completed in time, you can usually reclaim it if you sell the previous main home within a set period. Companies and certain purchases have their own rules. Because the surcharge rate and its rules change in Budgets and the situations can be complex (divorce, inherited shares, mixed-use property), confirm current rates and take advice for anything non-standard.

When to Seek Financial Advice?

Calculator results provide estimates based on stated inputs and should not replace professional financial advice for significant decisions. Free, regulated financial guidance is available through MoneyHelper (moneyhelper.org.uk, 0800 011 3797) for general money queries. Regulated independent financial advisers (IFAs) — find one at unbiased.co.uk — provide personalised advice on mortgages, pensions, investments, and insurance. Advice fees are typically £150-350 per hour or a percentage of assets under management, usually around 1-2% annually. For smaller, one-off decisions, free and impartial guidance is available from MoneyHelper (moneyhelper.org.uk), a government-backed service — a good first stop before paying for full advice.

How Shared Ownership and New Build Purchases Are Treated for Stamp Duty

Shared ownership purchasers have a choice not available to standard buyers: paying SDLT on the full market value of the home upfront, or electing to pay it only on the initial share being bought, with no further SDLT due as further shares are staircased up later, in most cases up to full ownership. For many buyers, particularly first-time buyers using shared ownership to get onto the property ladder, electing to pay on the share alone significantly reduces the upfront tax bill compared to paying on full value immediately, though the choice is generally made once at the outset and isn't easily reversed later. New build purchases don't receive any special SDLT treatment simply for being newly constructed, and are assessed on exactly the same bands and reliefs as an equivalent-priced resale property, a common misconception among first-time buyers assuming new build status itself carries a tax advantage. Where a new build purchase involves part-exchange of an existing home with the developer, SDLT is still calculated on the price paid for the new property, not on any net figure after the part-exchange value is deducted, which can catch buyers off guard if they assumed the trade-in value reduced the taxable purchase price.

Non-UK Resident Surcharge: An Extra Layer on Top of Other Rates

Buyers who aren't UK resident for SDLT purposes face an additional surcharge on top of whatever other rates and surcharges already apply, layered on top of the standard residential bands and, where relevant, the additional-property surcharge, meaning a non-resident buying a second home can face three separate elements stacked together. Residency for this specific surcharge is tested using its own rules, generally based on days spent in the UK in the twelve months before the purchase, which is a different test from general tax residency rules used elsewhere, so someone might be UK tax resident generally but still count as non-resident for this particular SDLT surcharge if they haven't spent enough time in the country in the relevant window. A refund of the surcharge can generally be claimed if the buyer, or in some cases their spouse, goes on to spend sufficient time in the UK within a set period after the purchase, effectively meeting the residency test retrospectively. This surcharge applies regardless of nationality, so a non-UK-resident British citizen buying a home while living abroad can be caught by it just as a foreign national would be, while a UK-resident foreign national who genuinely meets the UK day-count test is generally not subject to it.

Reference: SDLT Bands for a Standard Residential Purchase

Stamp Duty Land Tax is charged on a slice basis, like Income Tax, meaning each band's rate applies only to the portion of the price within it, not the whole purchase price. These thresholds and rates are set by the government and have changed more than once in recent years, including temporary reliefs introduced and later withdrawn, so always confirm the current bands for England and Northern Ireland before relying on an exact figure — Scotland and Wales use entirely separate land transaction taxes with their own bands.

Worked Example: SDLT on a £295,000 First-Time Buyer Purchase

A first-time buyer purchasing a home for £295,000, assuming a typical first-time buyer relief nil-rate band of roughly £300,000, would pay no SDLT at all, since the full price falls within that relief threshold. If the same buyer were not eligible for first-time buyer relief — for example, because they'd previously owned a property anywhere in the world — the calculation would instead use standard rates: 0% on the first £125,000, and 2% on the next £170,000 (£295,000 − £125,000), giving £170,000 × 0.02 = £3,400 due. This roughly £3,400 gap illustrates why confirming first-time buyer eligibility before completion is worth doing carefully, since the relief can represent a meaningful saving on a purchase in this price range.