Stamp Duty Land Tax: Complete UK Guide for 2025/26
Everything UK property buyers need to know about Stamp Duty Land Tax. Rates, first-time buyer relief, additional property surcharge, and how to calculate SDLT before making an offer.
- SDLT is calculated on each portion (band) of the purchase price, not on the total at a flat rate
- From April 2025, the nil-rate band dropped back to £125,000 for standard buyers. First-time buyers keep a £300,000 nil-rate band on properties up to £500,000
- The additional property surcharge rose to 5% in October 2024, adding significant cost to second homes and buy-to-let purchases
- You have just 14 days after completion to file and pay SDLT, so run the numbers before you make an offer
Stamp Duty Land Tax: Complete UK Guide for 2025/26
Stamp Duty Land Tax is one of the largest upfront costs of buying a property in England or Northern Ireland. On a typical house purchase it can add thousands to the cash you need on completion day. Yet most buyers only think about it late in the process, after they have agreed a price and started legal work.
That is a mistake. SDLT should be one of the first things you calculate when deciding what you can afford. A few thousand pounds either side of a band threshold can swing your total costs significantly, and knowing your SDLT liability before you make an offer puts you in a stronger negotiating position.
This guide covers everything you need to know about Stamp Duty Land Tax for the 2025/26 tax year: how it works, what you will pay, who qualifies for relief, and the common traps that catch buyers out.
- Stamp Duty Land Tax (SDLT)
- A tax charged on property and land purchases in England and Northern Ireland. It is calculated on a tiered basis, where each portion of the purchase price falling within a specific band is taxed at the rate for that band. The buyer pays SDLT, not the seller, and it must be filed and paid within 14 days of completion.
What Is Stamp Duty Land Tax?
Stamp Duty Land Tax is a transaction tax. You pay it when you buy residential property or land in England or Northern Ireland above a certain price threshold. The tax is paid by the buyer, and your solicitor or conveyancer normally handles the filing and payment on your behalf.
The name "stamp duty" dates back centuries to when physical stamps were placed on legal documents to show that tax had been paid. Today there are no physical stamps involved. SDLT is filed electronically with HMRC and paid as part of your completion process.
A few key points to understand from the outset:
- SDLT is a one-off cost. You pay it once when you buy the property, not annually.
- It applies in England and Northern Ireland only. Scotland has Land and Buildings Transaction Tax (LBTT), and Wales has Land Transaction Tax (LTT). Both use different rates and thresholds.
- It is calculated on bands, not the whole price. This is the most misunderstood aspect of SDLT. Each slice of the purchase price is taxed at the rate for that band. A £400,000 house is not taxed entirely at 5%.
- Different buyer types pay different rates. First-time buyers, standard buyers, and additional property buyers each face different SDLT schedules.
Run the numbers for your specific situation with our Stamp Duty Calculator before making any offer.
Current SDLT Rates and Bands for 2025/26
From 1 April 2025, the temporary higher thresholds introduced in September 2022 expired. The nil-rate band for standard buyers dropped from £250,000 back to £125,000. First-time buyer relief thresholds also reduced, and the additional property surcharge (which rose from 3% to 5% in October 2024) remains at the higher level.
Here are the current rates for all three buyer types:
Standard Residential Rates
These rates apply if you are buying a residential property and you are not a first-time buyer and do not already own another property.
| Property price band | SDLT rate |
|---|---|
| Up to £125,000 | 0% |
| £125,001 to £250,000 | 2% |
| £250,001 to £925,000 | 5% |
| £925,001 to £1,500,000 | 10% |
| Above £1,500,000 | 12% |
First-Time Buyer Rates
First-time buyers benefit from a more generous nil-rate band, but only if the property price does not exceed £500,000.
| Property price band | SDLT rate |
|---|---|
| Up to £300,000 | 0% |
| £300,001 to £500,000 | 5% |
| Above £500,000 | Standard rates apply (no relief) |
If your property costs more than £500,000, first-time buyer relief is completely unavailable. You pay standard rates on the entire purchase price as though the relief did not exist. This cliff edge catches many London and South East buyers.
Additional Property Rates (Second Homes and Buy-to-Let)
If you are buying a second home, holiday let, buy-to-let, or any additional residential property while already owning one, a 5% surcharge applies on top of the standard rates from the very first pound. The surcharge applies regardless of whether your existing property is in the UK or abroad.
| Property price band | Standard rate | Additional property rate |
|---|---|---|
| Up to £125,000 | 0% | 5% |
| £125,001 to £250,000 | 2% | 7% |
| £250,001 to £925,000 | 5% | 10% |
| £925,001 to £1,500,000 | 10% | 15% |
| Above £1,500,000 | 12% | 17% |
The surcharge does not apply to properties purchased for less than £40,000.
First-time buyers purchasing a property for more than £500,000 will not be entitled to any relief and will pay SDLT at the normal rates on the total purchase price.
How SDLT Is Calculated: The Banding System
This is the single most important thing to understand about stamp duty: it works like income tax bands, not like a flat rate.
Each portion of the purchase price is taxed at the rate for the band it falls within. Only the amount above each threshold is taxed at the higher rate. This means the effective rate you pay on the total price is always lower than the highest band rate that applies.
Step-by-step calculation
Take a property costing £350,000, purchased by a standard buyer (not first-time, no additional properties):
- First £125,000 at 0% = £0
- Next £125,000 (£125,001 to £250,000) at 2% = £2,500
- Next £100,000 (£250,001 to £350,000) at 5% = £5,000
Total SDLT = £7,500
The effective rate on the full purchase price is 2.14% (£7,500 / £350,000), not 5%.
This banding system is crucial because it means small increases in purchase price near band thresholds do not trigger disproportionate tax jumps. A property at £260,000 pays only slightly more SDLT than one at £250,000, not dramatically more.
Worked Examples: Three Buyers, Same Property
To illustrate how dramatically buyer type affects your SDLT liability, here is what each type of buyer would pay on a £350,000 property.
Standard buyer purchasing at £350,000
| Band | Taxable amount | Rate | SDLT |
|---|---|---|---|
| £0 to £125,000 | £125,000 | 0% | £0 |
| £125,001 to £250,000 | £125,000 | 2% | £2,500 |
| £250,001 to £350,000 | £100,000 | 5% | £5,000 |
| Total | £7,500 |
First-time buyer purchasing at £350,000
| Band | Taxable amount | Rate | SDLT |
|---|---|---|---|
| £0 to £300,000 | £300,000 | 0% | £0 |
| £300,001 to £350,000 | £50,000 | 5% | £2,500 |
| Total | £2,500 |
The first-time buyer saves £5,000 compared to the standard buyer.
Additional property buyer purchasing at £350,000
| Band | Taxable amount | Rate | SDLT |
|---|---|---|---|
| £0 to £125,000 | £125,000 | 5% | £6,250 |
| £125,001 to £250,000 | £125,000 | 7% | £8,750 |
| £250,001 to £350,000 | £100,000 | 10% | £10,000 |
| Total | £25,000 |
The additional property buyer pays £25,000, over three times more than the standard buyer and ten times more than the first-time buyer, on the exact same property.
These differences make it essential to know your buyer classification before setting a budget. Use our Stamp Duty Calculator to compare all three scenarios side by side for any property price.
First-Time Buyer Relief: Who Qualifies
First-time buyer relief can save you thousands, but the eligibility rules are strict. Here is what you need to know.
Eligibility requirements
To qualify for first-time buyer relief, all of the following must be true:
- You have never owned a residential property anywhere in the world
- You have never inherited a residential property (even if you sold it immediately)
- You have never owned property through a trust
- The property costs £500,000 or less
- You intend to live in the property as your main residence
If you are buying with another person (a joint purchase), both buyers must be first-time buyers. If one of you has previously owned a property, neither of you qualifies for the relief.
The £500,000 cliff edge
This is the biggest trap in first-time buyer SDLT relief. If the property costs £500,001, you lose the relief entirely. Not just on the amount above £500,000. On the entire purchase price. You pay standard rates as though the relief did not exist.
For a property at £500,000, a first-time buyer pays £10,000 in SDLT. For a property at £500,001, the same buyer pays £12,500 at standard rates. That single extra pound costs £2,500 in additional tax.
If you are a first-time buyer looking at properties near £500,000, this cliff edge should directly influence your offer strategy. Staying at or below £500,000 saves a meaningful amount. Discuss this with your solicitor before making an offer.
How much do first-time buyers actually save?
The saving depends on the purchase price. Here are some examples:
| Purchase price | Standard buyer SDLT | First-time buyer SDLT | Saving |
|---|---|---|---|
| £200,000 | £1,500 | £0 | £1,500 |
| £300,000 | £5,000 | £0 | £5,000 |
| £400,000 | £10,000 | £5,000 | £5,000 |
| £500,000 | £12,500 | £10,000 | £2,500 |
| £500,001 | £12,500.05 | £12,500.05 (no relief) | £0 |
The maximum possible saving is £5,000, which applies to properties priced between £300,000 and £500,000.
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The Additional Property Surcharge Explained
Since October 2024, buying an additional residential property attracts a 5% surcharge on top of standard SDLT rates. This surcharge was previously 3% but was increased in the Autumn Budget 2024 to 5%.
When does the surcharge apply?
The 5% surcharge applies when:
- You are buying a second home (including holiday homes)
- You are buying a buy-to-let investment property
- You already own a residential property anywhere in the world
- You have inherited a residential property and are buying another
- You are buying through a company or trust
The surcharge applies from the first pound of the purchase price on properties above £40,000. There is no nil-rate band exemption.
When does the surcharge NOT apply?
- You are replacing your main residence (you have sold or are selling your previous home)
- The property costs less than £40,000
- You are buying a non-residential property (commercial, agricultural land)
Can you get a refund of the surcharge?
Yes, in specific circumstances. If you bought an additional property and paid the 5% surcharge because you had not yet sold your previous main home, you can claim a refund if you sell that previous home within three years of completing the additional purchase. The refund claim must be submitted within two years of the sale date.
This is common when people buy a new home before their old one has sold. You pay the surcharge upfront, then claim it back once the chain completes.
How much does the surcharge add?
The impact is substantial. Here are some examples:
| Purchase price | Standard SDLT | Additional property SDLT | Extra cost from surcharge |
|---|---|---|---|
| £200,000 | £1,500 | £11,500 | £10,000 |
| £350,000 | £7,500 | £25,000 | £17,500 |
| £500,000 | £12,500 | £37,500 | £25,000 |
| £750,000 | £25,000 | £62,500 | £37,500 |
For buy-to-let investors, this surcharge fundamentally changes the economics of property investment. You need to model it alongside rental income tax and potential capital gains tax when assessing whether a purchase makes financial sense. The Multiple Income Calculator can help you see the full picture.
When Is SDLT Due?
You must file an SDLT return and pay the tax within 14 days of the completion date. Not 14 days from exchange of contracts, and not 14 days from when you move in. Fourteen days from the date the sale legally completes.
In practice, your solicitor or conveyancer handles the SDLT return and payment as part of the completion process. The cost is typically included in their invoice alongside other disbursements. However, you should confirm this with your solicitor before completion to avoid any misunderstanding.
What happens if you miss the deadline?
Late filing triggers automatic penalties:
- Up to 3 months late: £100 penalty
- Over 3 months late: £200 penalty
- Plus interest on the unpaid SDLT from the due date
These penalties are in addition to the tax itself. Your solicitor should never let this happen, but it is worth knowing the consequences.
Do you always need to file a return?
Yes, if the purchase price is above £40,000, you must file an SDLT return even if no tax is due (for example, a first-time buyer purchasing at £250,000 owes zero SDLT but must still file). Below £40,000, no return is required.
Scotland and Wales: Different Systems
SDLT only applies in England and Northern Ireland. If you are buying property in Scotland or Wales, a different tax applies.
Scotland: Land and Buildings Transaction Tax (LBTT)
Scotland replaced Stamp Duty with LBTT in April 2015. The bands, rates, and thresholds are set by the Scottish Government and differ from England. Revenue Scotland administers the tax. The nil-rate band, rates at each threshold, and the additional dwelling supplement (Scotland's equivalent of the additional property surcharge) are all different.
Wales: Land Transaction Tax (LTT)
Wales replaced Stamp Duty with LTT in April 2018. The Welsh Revenue Authority administers it. Again, the bands and rates differ from both England and Scotland. Wales also has its own higher rates for additional properties.
If you are buying in Scotland or Wales, do not use English SDLT rates to estimate your tax. Use the respective calculator for the nation where the property is located.
Common SDLT Mistakes That Cost Buyers Money
These are the errors that solicitors, accountants, and HMRC see most frequently. Avoiding them could save you thousands.
1. Applying the rate to the whole price
The most common misunderstanding. If you are buying a property for £600,000, you might look at the rate table and think you owe 5% on the full amount (£30,000). In reality, the banding system means you owe £17,500 at standard rates. Understanding bands prevents unnecessary panic about affordability.
2. Assuming first-time buyer relief applies above £500,000
If the property costs even £1 more than £500,000, the relief vanishes entirely. You pay standard rates on everything. There is no taper or gradual reduction. This cliff edge is the single most costly mistake first-time buyers make near the London average property price.
3. Forgetting about inherited property
If you inherited a residential property (even a share in one), you are treated as already owning a property. Buying another one triggers the 5% additional property surcharge. Many buyers discover this only when their solicitor runs the SDLT check.
4. Not claiming the surcharge refund
If you paid the 5% surcharge because you had not yet sold your previous home, and you subsequently sell it within three years, you are entitled to a full refund of the surcharge. The claim must be submitted within two years of the sale. HMRC does not remind you. You must claim proactively.
5. Overlooking mixed-use property classification
A property with any commercial element (a flat above a shop, a house with an attached surgery, a farmhouse with agricultural buildings) may qualify as mixed-use or non-residential. Non-residential SDLT rates are significantly lower: 0% up to £150,000, 2% on £150,001 to £250,000, and 5% above £250,000. No additional property surcharge applies to non-residential purchases.
Buyers sometimes pay residential SDLT on properties that would legitimately qualify for the lower non-residential rates. If your property has any commercial element, ask your solicitor to review the classification.
6. Not running the numbers before making an offer
SDLT can add tens of thousands to your total purchase cost. Buyers who focus only on the deposit and mortgage repayments often get a shock when they see the SDLT bill. Run the numbers with a stamp duty calculator before you decide what to offer.
Using the Stamp Duty Calculator Before Making an Offer
Calculating SDLT by hand is straightforward but tedious, especially when comparing multiple properties or buyer scenarios. A calculator does the work instantly.
Here is how to use the TapTax Stamp Duty Calculator effectively:
1. Compare buyer types
Enter the same property price and toggle between standard buyer, first-time buyer, and additional property buyer. Seeing all three side by side shows you exactly how much your buyer classification affects the total cost.
2. Test price thresholds
If you are near a band threshold or the £500,000 first-time buyer cliff edge, test prices on either side. A small adjustment in your offer could save meaningful money.
3. Factor SDLT into your total budget
Your total purchase cost is not just the deposit plus legal fees. It includes SDLT, survey costs, mortgage arrangement fees, moving costs, and any immediate repairs. SDLT is often the second largest cash outlay after the deposit. Include it in your affordability calculation from the start.
4. Model investment returns accurately
If you are buying an investment property, the 5% surcharge is a significant upfront cost that affects your yield calculation. Model it alongside ongoing rental income tax and eventual capital gains tax to get a realistic picture of returns.
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SDLT and the Wider Tax Picture
Stamp duty does not exist in isolation. For many buyers, especially investors and sole traders with property income, SDLT is one piece of a larger tax puzzle.
Buy-to-let investors
If you are buying a rental property, you need to account for SDLT (including the 5% surcharge), ongoing income tax on rental profits, and eventual capital gains tax when you sell. Use the Rental Income Tax Calculator to model the annual tax cost and the Capital Gains Tax Calculator to estimate the exit tax.
Multiple income sources
If you have employment income, self-employment income, and property income, your total tax position is complex. The Multiple Income Calculator helps you see how different income streams interact and where you sit in the tax bands.
Sole traders and property
Many sole traders own investment properties alongside their business. With Making Tax Digital requiring quarterly reporting of both self-employment and property income, keeping accurate records of property-related costs (including SDLT as a purchase expense) is more important than ever.
Key Changes to Watch
The SDLT landscape has shifted significantly in recent years. Here is a summary of the major changes and what to be aware of going forward.
April 2025: Threshold reversion
The temporary higher nil-rate bands introduced in September 2022 expired on 31 March 2025. The standard nil-rate band dropped from £250,000 to £125,000, and first-time buyer relief thresholds dropped from £425,000 to £300,000 (with the maximum property price dropping from £625,000 to £500,000).
If you exchanged contracts before 1 April 2025 but complete after, the rate that applies is determined by the completion date, not the exchange date.
October 2024: Surcharge increase
The additional property surcharge rose from 3% to 5% in October 2024. This increased the upfront cost of buying second homes and buy-to-let properties substantially.
Potential future changes
SDLT rates and thresholds can change in any Budget or fiscal event. The best approach is to calculate based on current rates, monitor government announcements, and check with your solicitor before completion if rates have recently changed or are expected to change.
Summary: What Every Buyer Should Remember
Stamp Duty Land Tax is a significant cost of buying property. It is calculated on bands (not the total price at a flat rate), varies dramatically by buyer type, and must be paid within 14 days of completion.
The three things that will save you the most money and stress:
- Calculate early. Use the Stamp Duty Calculator before making an offer, not after.
- Know your buyer type. The difference between first-time buyer and additional property buyer on a £350,000 home is £22,500.
- Watch the thresholds. The £500,000 first-time buyer cliff edge, the £125,000 nil-rate band, and the £40,000 minimum for the additional property surcharge all create points where small price changes have outsized tax consequences.
