UK Stamp Duty Calculator (2026/27 SDLT, LBTT, LTT & 5% BTL Surcharge)

Stamp Duty is calculated using a progressive "slice" system where tax is only charged on the portion of the purchase price falling within each specific bracket. The table below compares statutory residential rates across England/NI (SDLT), Scotland (LBTT), and Wales (LTT) for 2026/27:

Depending on buyer circumstances, multiple statutory reliefs or surcharges may apply to a single transaction:

Complete Guide to UK Stamp Duty Land Tax (SDLT) Rules & Rates (2026/27)

Stamp Duty Land Tax (SDLT) is a mandatory self-assessed transfer tax charged on land and property acquisitions in England and Northern Ireland under Part 4 of the Finance Act 2003. Whether purchasing a first home, relocating your primary residence, investing in a buy-to-let portfolio, or acquiring commercial land, understanding the progressive tier structure and statutory surcharges ensures you budget accurately and avoid HMRC penalties.

1. The Legal Framework of Stamp Duty Land Tax (Finance Act 2003)

SDLT operates on a progressive "slice" system (introduced in December 2014 to replace the previous "slab" system). Tax is charged only on the portion of the purchase price falling within each statutory band, rather than taxing the entire purchase price at the highest applicable rate.

The legal liability to pay Stamp Duty falls squarely on the purchaser. While your conveyancer or solicitor typically submits the SDLT1 return and arranges payment, the buyer remains legally responsible to HMRC for any underpayment or late filing interest.

2. 2026/27 Standard Residential SDLT Rates & Progressive Calculations

For home movers purchasing a sole residential property in England or Northern Ireland during 2026/27, the progressive rates are:

• £0 to £125,000: 0.0% (Standard Nil-Rate Band).
• £125,001 to £250,000: 2.0% on the portion within this £125,000 slice (Max £2,500).
• £250,001 to £925,000: 5.0% on the portion within this £675,000 slice (Max £33,750).
• £925,001 to £1,500,000: 10.0% on the portion within this £575,000 slice (Max £57,500).
• Portion over £1,500,000: 12.0% uncapped marginal rate.

3. First-Time Buyer Relief Rules, Price Caps & Eligibility Criteria

Under Schedule 6ZA of the Finance Act 2003, first-time buyers receive substantial statutory relief:

• 0% SDLT up to £300,000: No tax is paid on the first £300,000 of the purchase price.
• 5% SDLT between £300,001 and £500,000: A flat 5% rate applies only to the portion between £300,000 and £500,000.
• The £500,000 Cliff-Edge Disqualification: If the purchase price is even £1 over £500,000, First-Time Buyer Relief is completely unavailable. The buyer must pay standard residential SDLT rates starting from £125,000.
• Worldwide Ownership Rule: To qualify, all purchasers on the title must have never owned a residential property (or an inherited share in a property) anywhere in the world, and must intend to occupy the property as their only or main residence.

4. The 5% Additional Property Surcharge (Buy-to-Let, Second Homes & Ltd Companies)

Under Schedule 4ZA of the Finance Act 2003 (Higher Rates for Additional Dwellings - HRAD), purchasers of additional residential properties face an extra 5.0% surcharge across all bands (increased from 3% in the Autumn Budget 2024):

• £0 to £125,000: 5.0% (No nil-rate band for additional properties).
• £125,001 to £250,000: 7.0% (2% standard + 5% surcharge).
• £250,001 to £925,000: 10.0% (5% standard + 5% surcharge).
• £925,001 to £1,500,000: 15.0% (10% standard + 5% surcharge).
• Portion over £1,500,000: 17.0% (12% standard + 5% surcharge).
• Corporate Entities: All residential property purchases made by limited companies (including Special Purpose Vehicles / SPVs) are automatically subject to the 5% surcharge, even if it is the company's first property purchase.

5. Non-UK Resident 2% SDLT Surcharge & How It Stacks

Under Schedule 17 of the Finance Act 2021, individual and corporate purchasers who are non-UK residents for SDLT purposes face an additional 2.0% surcharge:

An individual is treated as non-UK resident if they were not present in the UK for at least 183 days during the 365 days immediately preceding completion. This 2% surcharge stacks on top of existing rates. For example, an overseas investor buying a second home in England pays standard rates + 5% HRAD + 2% non-resident surcharge, resulting in an entry rate of 7% on the first £125,000 and a top marginal rate of 19.0% on values above £1.5 million.

6. The 36-Month Main Residence Replacement Refund Rule

If you purchase a new primary residence before completing the sale of your previous home, you own two residential properties on the date of completion and must pay the 5% surcharge upfront.

However, under Paragraph 3 of Schedule 4ZA, if you successfully sell your previous main residence within 36 months (3 years) of completing on your new home, you are legally entitled to a 100% refund of the 5% surcharge from HMRC. You must submit your refund claim to HMRC within 12 months of selling your old home or within 12 months of filing the original SDLT return, whichever is later.

7. Devolved Property Taxes: Scottish LBTT vs Welsh LTT

Property taxes are fully devolved to the Scottish and Welsh governments:

• Scotland (Land and Buildings Transaction Tax - LBTT): Administered by Revenue Scotland. The standard nil-rate threshold is £145,000 (£175,000 for first-time buyers). Additional properties attract an Additional Dwelling Supplement (ADS) of 6.0%.
• Wales (Land Transaction Tax - LTT): Administered by the Welsh Revenue Authority (WRA). Features a generous standard nil-rate threshold of £225,000 for main residences, but does not provide separate first-time buyer relief and applies distinct higher residential rates for second homes.

8. The 14-Day HMRC SDLT Filing & Payment Deadline

Under Section 76 of the Finance Act 2003, an SDLT return (Form SDLT1) must be submitted and the full tax liability paid to HMRC within 14 calendar days of completion. Once processed, HMRC issues an official SDLT5 Certificate, which is mandatory to register property ownership with HM Land Registry. Missing the 14-day deadline triggers an automatic £100 late filing penalty (rising to £200 after 3 months) plus daily statutory interest on outstanding tax.

Real-World Worked Stamp Duty Calculations

Step 1: Slice £0 to £125,000 (Nil-Rate Band):
        £125,000.00 × 0.0% = £0.00

Step 2: Slice £125,001 to £250,000 (2% Band):
        £125,000.00 × 2.0% = £2,500.00

Step 3: Slice £250,001 to £450,000 (5% Band):
        Span = £450,000.00 − £250,000.00 = £200,000.00
        £200,000.00 × 5.0% = £10,000.00

Step 4: Total Stamp Duty Due:
        Total SDLT = £0.00 + £2,500.00 + £10,000.00 = £12,500.00
        Effective Tax Rate = £12,500.00 / £450,000.00 = 2.78%

Step 1: Slice £0 to £300,000 (First-Time Buyer 0% Band):
        £300,000.00 × 0.0% = £0.00

Step 2: Slice £300,001 to £380,000 (First-Time Buyer 5% Band):
        Span = £380,000.00 − £300,000.00 = £80,000.00
        £80,000.00 × 5.0% = £4,000.00

Step 3: Total Stamp Duty Payable:
        Total SDLT = £4,000.00
        (Compared to £9,000 standard SDLT, Chloe saves £5,000 in tax!).

Step 1: Slice £0 to £125,000 (5% Surcharge Band):
        £125,000.00 × 5.0% = £6,250.00

Step 2: Slice £125,001 to £250,000 (7% Band = 2% + 5% Surcharge):
        £125,000.00 × 7.0% = £8,750.00

Step 3: Slice £250,001 to £300,000 (10% Band = 5% + 5% Surcharge):
        Span = £300,000.00 − £250,000.00 = £50,000.00
        £50,000.00 × 10.0% = £5,000.00

Step 4: Total Stamp Duty Payable:
        Total SDLT = £6,250.00 + £8,750.00 + £5,000.00 = £20,000.00
        Effective Tax Rate = £20,000.00 / £300,000.00 = 6.67%

Step 1: Slice £0 to £145,000 (Nil-Rate Band):
        £145,000.00 × 0.0% = £0.00

Step 2: Slice £145,001 to £250,000 (2% Band):
        £105,000.00 × 2.0% = £2,100.00

Step 3: Slice £250,001 to £280,000 (5% Band):
        Span = £280,000.00 − £250,000.00 = £30,000.00
        £30,000.00 × 5.0% = £1,500.00

Step 4: Total Scottish LBTT Payable:
        Total LBTT = £2,100.00 + £1,500.00 = £3,600.00