How to Calculate Stamp Duty in the UK: Complete Guide 2025/26

Stamp Duty Land Tax (SDLT) is a tax paid in England and Northern Ireland when purchasing a property or land above a certain price threshold. It is one of the most significant costs when buying a home in the United Kingdom.

SDLT is payable in the following situations:

• Purchase of a residential property (house, flat, residential land) exceeding 125,000 pounds
• Purchase of non-residential or mixed-use property exceeding 150,000 pounds
• Transfer of property in exchange for payment, even between family members
• Purchase through a company (company purchase)

The tax works on a progressive banding system, similar to income tax. This means each portion of the purchase price is taxed at a different rate, not the total price. For example, if you buy a property for 300,000 pounds, only the portion exceeding 125,000 pounds is taxed at the first rate.

SDLT must be paid within 14 days of the completion date. Late payment incurs interest and potential penalties. Normally, the solicitor or conveyancer handling the purchase takes care of filing the return and making the payment to HMRC. Calculate your SDLT with our Stamp Duty calculator.

From 1 April 2025, the SDLT bands for residential properties in England and Northern Ireland are as follows:

Price band	SDLT rate
Up to 125,000 pounds	0%
125,001 to 250,000 pounds	2%
250,001 to 925,000 pounds	5%
925,001 to 1,500,000 pounds	10%
Over 1,500,000 pounds	12%

Calculation example for a 350,000-pound property:

• First 125,000 pounds at 0% = 0 pounds
• Next 125,000 pounds (125,001 to 250,000) at 2% = 2,500 pounds
• Next 100,000 pounds (250,001 to 350,000) at 5% = 5,000 pounds
• Total SDLT: 7,500 pounds

Example for a 500,000-pound property:

• First 125,000 pounds at 0% = 0 pounds
• Next 125,000 pounds at 2% = 2,500 pounds
• Next 250,000 pounds (250,001 to 500,000) at 5% = 12,500 pounds
• Total SDLT: 15,000 pounds

It is important to remember that these rates are marginal -- the highest rate is not applied to the total price. This progressive system benefits buyers, as the effective tax rate is always lower than the maximum applicable rate. To calculate the exact SDLT for any price, use our Stamp Duty calculator.

The UK government offers a special tax relief for first-time buyers that significantly reduces SDLT on the first home purchase. This benefit has been key in helping young people get on the property ladder.

First-time buyer relief conditions (from April 2025):

• Applies to properties priced up to 625,000 pounds
• The first 300,000 pounds is exempt from SDLT (0%)
• The portion between 300,001 and 625,000 pounds is taxed at 5%
• If the price exceeds 625,000 pounds, the relief is lost entirely and standard rates apply

Requirements to qualify as a first-time buyer:

• Never have owned a property, whether in the UK or abroad
• The property must be your main residence
• All purchasers must be first-time buyers (if buying as a couple and one has previously owned property, the relief does not apply)

Example for a first-time buyer with a 400,000-pound property:

• First 300,000 pounds at 0% = 0 pounds
• Next 100,000 pounds (300,001 to 400,000) at 5% = 5,000 pounds
• Total SDLT: 5,000 pounds
• Saving compared to standard rates: 2,500 pounds

Example for a first-time buyer with a 280,000-pound property:

• First 280,000 pounds at 0% = 0 pounds (within the 300,000 exemption)
• Total SDLT: 0 pounds
• Saving compared to standard rates: 2,100 pounds

This relief represents considerable savings, particularly in areas where property prices are more moderate.

If you already own a property and purchase an additional one (second home, investment property, buy-to-let), you must pay a 5% surcharge on top of the standard SDLT rates in each band. This surcharge was increased from 3% to 5% from 31 October 2024.

SDLT rates with additional property surcharge:

Price band	Standard rate	Rate with surcharge
Up to 125,000 pounds	0%	5%
125,001 to 250,000 pounds	2%	7%
250,001 to 925,000 pounds	5%	10%
925,001 to 1,500,000 pounds	10%	15%
Over 1,500,000 pounds	12%	17%

Example for a second property at 300,000 pounds:

• First 125,000 pounds at 5% = 6,250 pounds
• Next 125,000 pounds (125,001 to 250,000) at 7% = 8,750 pounds
• Next 50,000 pounds (250,001 to 300,000) at 10% = 5,000 pounds
• Total SDLT: 20,000 pounds
• Without surcharge would be: 2,500 + 2,500 = 5,000 pounds
• Additional surcharge cost: 15,000 pounds

When the surcharge applies:

• Buying a second home or holiday home
• Buying a property to let (buy-to-let)
• Company purchase of residential property
• Buying when you have not yet sold your previous property

When the surcharge does NOT apply:

• If you are replacing your main residence (sold the previous one or will sell within 36 months)
• If the additional property costs less than 40,000 pounds

If you buy a new main residence before selling your previous one, you pay the surcharge initially. However, if you sell the previous property within 36 months, you can claim a refund of the surcharge from HMRC.

It is essential to know that SDLT only applies in England and Northern Ireland. Scotland and Wales have their own property purchase taxes with different rates and bands:

Scotland: Land and Buildings Transaction Tax (LBTT)

Administered by Revenue Scotland, LBTT has the following bands for residential properties:

Price band	LBTT rate
Up to 145,000 pounds	0%
145,001 to 250,000 pounds	2%
250,001 to 325,000 pounds	5%
325,001 to 750,000 pounds	10%
Over 750,000 pounds	12%

Scotland also offers first-time buyer relief: the first 175,000 pounds is exempt on properties up to 175,000 pounds. The additional property surcharge in Scotland is 6% (Additional Dwelling Supplement, ADS).

Wales: Land Transaction Tax (LTT)

Administered by the Welsh Revenue Authority (WRA), LTT has these bands:

Price band	LTT rate
Up to 225,000 pounds	0%
225,001 to 400,000 pounds	6%
400,001 to 750,000 pounds	7.5%
750,001 to 1,500,000 pounds	10%
Over 1,500,000 pounds	12%

Wales does not have first-time buyer relief like England, but the higher starting threshold (225,000 pounds) partially compensates for this difference. The additional property surcharge in Wales is 4%.

These differences mean that the same property can have a very different tax cost depending on its location. If you are considering buying in different parts of the UK, it is important to calculate the specific tax for each country. Use our Stamp Duty calculator which includes all three systems.

There are several situations where SDLT may not apply or may receive special treatment:

Full exemptions:

• Properties below the threshold: Purchases of residential properties under 125,000 pounds (or 300,000 pounds for first-time buyers) do not incur SDLT
• Transfer on divorce or civil partnership dissolution: No SDLT is payable when property is transferred as part of a divorce settlement
• Inheritance: No SDLT is payable when property is inherited through a will or intestacy
• Gift with no consideration: If property is gifted with no payment (and no mortgage), SDLT is normally not payable

Special situations:

• Shared ownership: You can choose to pay SDLT on the full market value of the property or only on the share purchased. If the latter is chosen, additional SDLT is paid when buying more shares (staircasing)
• Right to Buy: Social housing tenants who purchase at a discount pay SDLT on the discounted price, not the market value
• Off-plan purchases: SDLT is paid on the final price at completion, not at the point of exchange
• Non-UK residents: Since April 2021, buyers who are not UK residents pay an additional 2% surcharge on top of standard rates

Multiple Dwellings Relief (MDR):

This was abolished on 1 June 2024. It previously allowed SDLT reduction when purchasing multiple properties in a single transaction by calculating tax on the average price rather than the total.

The SDLT payment process is highly regulated with strict deadlines that must be met:

Payment process:

• Step 1: Your solicitor or conveyancer prepares the SDLT return (form SDLT1)
• Step 2: The return is submitted to HMRC, which can be done electronically
• Step 3: HMRC issues a certificate (SDLT5) which is required to register the property with the Land Registry
• Step 4: Without the SDLT5 certificate, property registration cannot be completed

Critical deadlines:

• The return and payment must be made within 14 days of the completion date
• Penalties for late filing include a fixed penalty of 100 pounds if less than 3 months late, increasing to 200 pounds after 3 months
• In addition to penalties, late payment interest is charged on unpaid tax
• In serious cases of evasion, HMRC can impose penalties of up to 100% of the tax owed

Amendments and refunds:

• If you paid the additional property surcharge and sell your previous property within 36 months, you can claim a refund
• You have 12 months from the date of sale of your previous property (or 12 months from the purchase date, whichever is later) to claim the refund
• SDLT returns can be amended within 12 months of the filing date

To calculate exactly how much SDLT you will need to pay and plan your finances, use our Stamp Duty calculator. You can also estimate your net salary after tax with the PAYE UK calculator.

While SDLT cannot be evaded, there are legal strategies to optimise your tax position:

1. Claim first-time buyer relief:

If you are a first-time buyer, make sure to claim the relief. If buying with someone who has previously owned property, consider whether it is possible to structure the purchase differently (consult a legal adviser).

2. Price negotiation:

SDLT bands create "jump points" where a small difference in price can mean a notable increase in tax. For example, negotiating the price from 260,000 to 250,000 pounds saves 500 pounds in SDLT (by moving from the 5% to the 2% band on that portion). This can be a negotiation point with the seller.

3. Sell your previous property first:

If you are buying a new main residence, try to sell your current one before completing the new purchase to avoid the 5% additional property surcharge. If you cannot, remember you have 36 months to sell and claim a refund.

4. Separate chattels from the price:

SDLT is paid on the property, not on chattels such as curtains, carpets, freestanding furniture, or white goods included in the sale. If the seller includes these items, they can be valued separately (at fair market value) to reduce the SDLT taxable amount. HMRC accepts a reasonable amount for this.

5. Consider the location:

If you are flexible on location, remember that Wales has a higher starting threshold (225,000 pounds vs 125,000 in England) and Scotland offers more generous first-time buyer relief (175,000 pounds exempt).

6. Plan around student loan repayments:

If you have a student loan, monthly repayments reduce your saving capacity. Use our UK student loan calculator to plan your repayments while saving for your first property purchase.