You’ve found a place. The mortgage is roughly sorted. And then someone mentions stamp duty, and suddenly there’s a figure in the thousands you hadn’t fully budgeted for. If that’s where you are right now, you’re not alone — stamp duty catches a huge number of first-time buyers off guard, partly because the rules keep changing and partly because nobody explains them in plain English.
This guide covers exactly what stamp duty is, what first-time buyers actually pay in 2026, where the thresholds sit, and the mistakes that cost people money. No jargon left unexplained, no guessing.
What stamp duty actually is
Stamp Duty Land Tax (SDLT) is a tax you pay when you buy a property or land in England or Northern Ireland above a certain price. It’s paid by the buyer, not the seller, and it’s due within 14 days of completion — the day you legally own the property. Your solicitor or conveyancer usually handles the payment and paperwork for you, but you’re the one footing the bill, so you need to budget for it separately from your deposit and mortgage.
Scotland and Wales have their own versions — Land and Buildings Transaction Tax (LBTT) in Scotland and Land Transaction Tax (LTT) in Wales — with different thresholds and rules. This guide focuses on SDLT in England and Northern Ireland, since that’s what “stamp duty” usually means. If you’re buying in Scotland or Wales, don’t assume the English figures apply to you.
The first-time buyer thresholds for 2026
As of 2026, if you qualify as a first-time buyer, you pay no stamp duty on the first £300,000 of the property price. Above that, you pay 5% on the portion between £300,000 and £500,000.
If the property costs more than £500,000, the first-time buyer relief disappears entirely — not partially. You fall back to the standard rates that everyone else pays, calculated on the full purchase price.
Here’s what that looks like in practice:
| Property price | First-time buyer stamp duty |
|---|---|
| £250,000 | £0 |
| £300,000 | £0 |
| £350,000 | £2,500 (5% of the £50,000 above £300,000) |
| £450,000 | £7,500 (5% of the £150,000 above £300,000) |
| £500,000 | £10,000 (5% of the full £200,000 above £300,000) |
| £550,000 | Standard rates apply — no relief at all |
That last row is the one that trips people up. Go even £1 over £500,000 and you lose the entire relief, not just the bit above the threshold. On a £550,000 property, you’re not just paying a bit more — you’re paying standard SDLT rates on the whole amount, which can mean several thousand pounds more than you’d expect.
Who actually counts as a “first-time buyer”
This is where a lot of confusion happens. To qualify for the relief, HMRC’s definition is strict:
- You must never have owned a residential property anywhere in the world before — not just the UK.
- This applies even if you didn’t buy it yourself. Inherited a share of a property? Co-owned a flat with an ex years ago? That counts too.
- If you’re buying with someone else, every single buyer on the mortgage must be a first-time buyer. If your partner owned a flat in their twenties and you didn’t, neither of you gets the relief on a joint purchase.
That second point catches people out constantly. People assume “first-time buyer” means “first time buying with this mortgage” or “first time buying in this country.” It doesn’t. It means first time ever owning any residential property, full stop.
The misconception: “I’ll just pay it later”
Some buyers assume stamp duty is something you can delay or roll into the mortgage. It isn’t. It’s due within 14 days of completion, and it’s a separate, upfront cash cost — not something a lender will finance as part of your mortgage borrowing. Turn up on completion day without the cash to cover it, and your purchase can genuinely stall.
Budget for stamp duty the same way you budget for your deposit: as cash you need to have ready, sitting separately from what you’re putting toward the house itself. Your conveyancer will confirm the exact figure once the price is agreed, but you can calculate an estimate yourself well before then using the table above, or check the official calculator on gov.uk.
What happens if you’re buying with someone who’s owned before
If you’re a genuine first-time buyer but your partner, friend, or family member co-buying with you has owned property before, you don’t get a partial discount. HMRC treats it as all-or-nothing: every named buyer must qualify, or the whole purchase pays standard rates with no relief at all.
This matters a lot for couples where one person has already been on a mortgage or inherited a share of a home. It’s worth working this out before you make an offer, not after, because it changes your real budget by thousands of pounds.
Standard stamp duty rates (if you don’t qualify for relief)
If you don’t meet the first-time buyer criteria — or your property is priced above £500,000 — you pay stamp duty at the standard residential rates:
| Portion of property price | Rate |
|---|---|
| Up to £125,000 | 0% |
| £125,001 to £250,000 | 2% |
| £250,001 to £925,000 | 5% |
| £925,001 to £1.5 million | 10% |
| Above £1.5 million | 12% |
These rates are banded, like income tax — you only pay the higher rate on the portion of the price that falls into that band, not the whole amount. An extra 3% surcharge usually applies if you’re buying a second home or buy-to-let property, but that’s a separate situation from first-time buying.
How to work out your own figure
You don’t need to do the maths by hand. HMRC provides a free stamp duty calculator on gov.uk where you enter the purchase price and confirm whether you’re a first-time buyer — it gives you the exact figure instantly. Use it as soon as you have a realistic price range in mind, not after you’ve made an offer, so there are no surprises.
If you’re unsure whether you count as a first-time buyer — because of a past inheritance, a previous joint ownership, or owning property abroad — it’s worth clarifying this with your solicitor early. It’s far better to find out before you’ve had an offer accepted than during the legal process, when it can cause delays or force you to find extra cash at short notice.
The bottom line
- Check the £500,000 cliff edge carefully. If your budget is hovering near that figure, understand that crossing it removes your entire first-time buyer relief, not just the amount above the threshold.
- Confirm everyone’s buyer status before you offer. If you’re buying jointly, both of you need to have never owned residential property anywhere, or you lose the relief entirely.
- Budget stamp duty as separate cash, not mortgage money. It’s due within 14 days of completion and lenders won’t finance it as part of your borrowing.
- Run the numbers early using HMRC’s official calculator on gov.uk, as soon as you have a price range — not after an offer is accepted.
- If you’re buying in Scotland or Wales, don’t use these figures. Check LBTT or LTT rates separately, since the thresholds and reliefs are different.
Next read: none