These are three taxes, not three rates of one
England and Northern Ireland charge Stamp Duty Land Tax. Wales charges Land Transaction Tax. Scotland charges Land and Buildings Transaction Tax. Different bands, different starting thresholds, different reliefs, and three different mechanisms for a second home.
They do not even start charging at the same price: £125,000 in England, £145,000 in Scotland, £225,000 in Wales. A calculator built for one nation is simply wrong in the other two.
The second-home surcharge is only a percentage in two of the three
Everybody quotes it as one idea with three numbers: 5% in England, 5% in Wales, 8% in Scotland. Two of those are genuinely percentages of the price. The Welsh one is not.
- England raises every band by exactly 5 points and keeps identical boundaries, so 0/2/5/10/12 becomes 5/7/10/15/17. That really is 5% of the whole price, at every price.
- Scotland leaves the LBTT bands completely alone and bolts an Additional Dwelling Supplement of 8% of the entire consideration on top.
- Wales does neither. It discards the main table and substitutes a wholly separate one with different boundaries: £180,000, £250,000 and £400,000 against the main table's £225,000 and £400,000.
So the Welsh uplift is neither 5% nor constant. It runs from 4.86% at £400,000 to 5.70% at £225,000, and it is exactly 5.00% only at or below £180,000.
And the peak lands in the worst possible place
The 5.70% maximum sits at exactly £225,000, which is the price at which an ordinary Welsh buyer still pays nothing at all. A mover pays £0 and a second-home buyer pays £12,825 on the identical purchase.
That is the widest gap in the whole Welsh schedule, and it is exactly where a calculator assuming a flat 5% misleads by the largest margin. £225,000 is also, not coincidentally, an extremely common asking price in Wales.
First-time buyer relief is three different things
- England: nothing to £300,000, then 5% to £500,000. Above £500,000 the relief disappears entirely rather than tapering. It is a cliff, so find out exactly where it sits before negotiating a price near it.
- Scotland: the nil band rises to £175,000, worth at most £600. Much smaller, but there is no price ceiling, so unlike England it never vanishes.
- Wales: none at all. Not a smaller relief, not a lower ceiling. It does not exist.
The Welsh trade-off is that the ordinary nil band is £225,000 to begin with, well above England's £125,000, so a first-time buyer at a typical Welsh price may pay nothing anyway.
The non-resident surcharge, England only
England and Northern Ireland add 2 percentage points to every rate, including the zero band, so a non-resident pays 2% on the slice a UK buyer pays nothing on. Neither Wales nor Scotland has an equivalent.
The test is presence in the UK for at least 183 days in the 12 months before the purchase. It turns on days rather than nationality or domicile, so a British citizen working abroad can be caught by it and a foreign national living here will not be.
Leasehold, mixed use and multiple dwellings are out
Residential freehold purchases. Leasehold with a substantial rent, mixed-use property, multiple dwellings relief, companies buying residential property above £500,000, and non-residential land all have their own rules and produce different figures. Those are worth professional advice rather than a calculator, because the amounts involved are large and the rules are genuinely intricate.
Common questions
Is the second-home surcharge 5% everywhere?
No, and Wales is the odd one out in a way almost nobody models. England raises every band by exactly 5 points while keeping identical boundaries, which is arithmetically 5% of the whole price. Scotland leaves its bands alone and adds 8% of the entire consideration. Wales discards the main table and substitutes a separate one with different boundaries, so the effective uplift varies with the price: 5.70% at £225,000, 4.86% at £400,000, and exactly 5.00% only at or below £180,000.
Why is the Welsh surcharge worst at £225,000?
Because that is the top of the zero band on the main Welsh table. An ordinary buyer at £225,000 pays nothing at all, while a second-home buyer at the same price pays £12,825. That is the widest gap anywhere in the Welsh schedule between a mover and a second-home buyer, and it is precisely the price point where a calculator assuming a flat 5% is most wrong.
Do all three nations have first-time buyer relief?
No. England gives relief up to £300,000 and then 5% to £500,000, with a hard cliff: one pound over £500,000 and the whole relief disappears rather than tapering. Scotland raises the nil band to £175,000, which is worth at most £600, but there is no price ceiling at all. Wales has no first-time buyer relief whatsoever, which surprises buyers who have read English guidance.
What is the non-resident surcharge?
Two percentage points on top of every other residential rate, and it exists only in England and Northern Ireland. It applies even to the zero band, so a non-resident pays 2% on the slice a UK buyer pays nothing on. The test is presence in the UK for at least 183 days in the 12 months before the purchase, so it turns on days rather than on nationality or domicile. Wales and Scotland have no equivalent.
When does the higher rate apply?
From a purchase price of £40,000 in all three nations, and where it applies it applies to the whole price rather than only the amount above the threshold. If you are replacing your only or main residence you may be outside it entirely, and if you buy before selling you can usually pay it and reclaim it later, which makes it a cashflow problem rather than a permanent cost.
Is stamp duty charged on the whole price or in slices?
In slices, in all three nations. Each band applies only to the portion of the price falling within it, so passing a threshold does not retax everything below it. The exceptions are the surcharges: Scotland’s Additional Dwelling Supplement is 8% of the whole consideration, and the £40,000 entry threshold works as a cliff rather than a band.