Stamp Duty Calculator

This stamp duty calculator estimates the property transaction tax due on a residential purchase in England, Northern Ireland, Scotland, or Wales. Select your buyer type, choose the relevant region, and enter the agreed purchase price to see the total tax due and a full band-by-band breakdown of how it is calculated.

The calculator covers three buyer types: standard buyers, first-time buyers who may qualify for a reduced nil-rate threshold, and buyers purchasing an additional property such as a second home or buy-to-let. Switching between them updates the results and the band table immediately, so you can compare the cost of each scenario side by side.

Stamp duty is one of the largest upfront costs in a property purchase and is often underestimated because buyers confuse the band rate with a flat rate. The band breakdown in this calculator shows exactly which portion of the price falls into each band and how much tax that portion generates — which is the most useful thing to understand before you make an offer.

Take a property priced at £350,000 in England. A standard buyer pays £0 on the first £125,000, £2,500 on the next £125,000 at 2%, and £5,000 on the remaining £100,000 at 5%. The total SDLT due is £7,500, giving an effective rate of 2.14%. Not 5% — because only the slice above £250,000 is taxed at that rate.

A first-time buyer purchasing the same £350,000 property pays nothing on the first £300,000 and £2,500 on the remaining £50,000 at 5%. The total is £2,500 — a saving of £5,000 compared to a standard buyer on an identical property. That difference goes directly toward solicitor fees, surveys, removals, and early mortgage payments.

The gap narrows as the price rises toward £500,000, above which first-time buyer relief disappears entirely and standard rates apply in full. At £500,001, a first-time buyer pays exactly the same as a standard buyer, which makes the £500,000 threshold one of the most significant price points in the UK housing market.

Stamp duty works like income tax — you pay the rate for each band only on the portion of the price that falls within it, not on the full purchase price. A property priced at £300,000 in England does not attract a 5% charge on the whole amount just because it sits in the 5% band. The first £125,000 is taxed at 0%, the next £125,000 at 2%, and only the final £50,000 at 5%. The total is £4,500, not £15,000.

This is why the effective rate shown in the results is almost always lower than the headline rate for your price range. The effective rate divides the total tax by the purchase price to give a true picture of what proportion of your money goes to HMRC. It is a more honest measure than the band rate, and it is the figure to use when comparing the tax cost between properties at different prices.

First-time buyer relief in England and Northern Ireland raises the nil-rate threshold from £125,000 to £300,000 and applies a 5% rate on the portion between £300,000 and £500,000. On a £280,000 first purchase, a buyer pays nothing at all. On a £450,000 first purchase, the bill is £7,500 rather than the £12,500 a standard buyer would pay — a difference of £5,000. The relief applies automatically as long as you have never owned a residential property anywhere in the world, including jointly.

If you are buying jointly, every purchaser named on the deed must be a first-time buyer for the relief to apply. If one party has previously owned a home — even decades ago and even if it was sold long since — the transaction is treated as a standard purchase and standard rates apply in full. There is no partial relief. It is worth confirming this early in the process, particularly for couples where one partner may have previously owned a property before the relationship.

When you already own a residential property and purchase another, a surcharge is added to every band. In England and Northern Ireland that surcharge is currently 5%, applied on top of the standard rate for each band. On the same £350,000 property used in the earlier example, an additional property buyer would pay £25,000 in SDLT compared to £7,500 for a standard buyer. The surcharge applies to the full purchase price and cannot be avoided by buying below any particular threshold.

The surcharge applies even if the additional property is abroad, even if it was inherited rather than bought, and even if the property is low value. There is a narrow exception if you are replacing your main residence: if you sell your existing main home on the same day you complete the new purchase, the surcharge typically does not apply. If the timing differs — for example, you buy first then sell — the surcharge is due at completion but can be reclaimed from HMRC within three years once the previous home is sold. A conveyancer or tax adviser should confirm whether this applies to your situation before you proceed.

Scotland replaced SDLT with Land and Buildings Transaction Tax (LBTT) in 2015, and Wales introduced Land Transaction Tax (LTT) in 2018. Both are administered by separate revenue authorities and use different band structures. Scotland's nil-rate band starts at £145,000 for standard buyers and £175,000 for first-time buyers, with narrower mid-range bands and a 12% top rate above £750,000. Wales has a more generous nil-rate band of £225,000 — so buyers below that threshold pay nothing — but the 6% band that follows is steeper than the equivalent in England.

Scotland levies an Additional Dwelling Supplement (ADS) on second homes and buy-to-let purchases. Unlike the banded surcharge used in England, Scotland's ADS is charged as a flat percentage of the full purchase price, which can produce a noticeably different result at the same property value. Use the region selector in the calculator to switch between countries and see how the same purchase price generates a different tax bill under each system.

Stamp duty is often treated like a flat rate on the full price, which overstates the bill. Banding means only the slice within each threshold is taxed at that rate — the band breakdown table shows where the total comes from.

Model standard buyer, first-time buyer, and additional property scenarios before you exchange. The same purchase price can produce very different tax under each buyer type or region.

If you are close to £300,000, £500,000, or £925,000 in England, small price changes can move part of the purchase into a higher band. Use the calculator to stress-test offers and negotiation headroom.

Confirm buyer type honestly — joint purchases fail first-time buyer relief if any purchaser has previously owned a residential property anywhere in the world.

Additional property surcharge rules include overseas homes and inherited property in many cases. Replacing a main residence on the same completion day may avoid the surcharge; buy-first-sell-later paths may require a reclaim within the allowed window.

Always confirm the final figure with your solicitor or conveyancer before exchange. Leasehold structures, mixed-use property, and non-standard reliefs are outside a simplified residential estimate.

Scotland's LBTT and Wales's LTT use different nil-rate bands and top rates than SDLT. Wales has no separate first-time buyer relief; Scotland applies Additional Dwelling Supplement differently from England's banded surcharge.

Switch region in the calculator when comparing the same price across countries — do not assume SDLT bands apply outside England and Northern Ireland.

Re-run after Budget or devolved rate announcements; property transaction taxes change more often than many buyers expect.