UK Stamp Duty Land Tax (SDLT) Guide 2026: Rates, Thresholds & Calculation Examples

When buying a residential property or land in England and Northern Ireland, buyers must pay Stamp Duty Land Tax (SDLT) to HM Revenue & Customs (HMRC). SDLT is a progressive tax calculated in tiered bands based on the purchase price of the property.

Understanding SDLT rates is essential for homebuyers, buy-to-let investors, and property developers. The amount of stamp duty you owe depends heavily on whether you are a first-time buyer, moving to a new primary residence, purchasing an additional residential property (second home/buy-to-let), or buying as a non-UK resident.

In this 2026 guide, you will learn the exact SDLT progressive tax bands, threshold rules, relief schemes, and how to use the CalculatorAll UK Stamp Duty Calculator.

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Quick Answer: Standard Residential SDLT Rates 2026

For buyers moving to a main residence who have previously owned a property, SDLT is charged progressively on portioned purchase price bands:

Quick Calculation Example:

If you purchase a home for £450,000 as your main residence:

1. First £250,000 at 0%: £0
2. Remaining £200,000 (£450,000 - £250,000) at 5%: £10,000
3. Total SDLT Tax Due: £10,000 (Effective Tax Rate = 2.22%)

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First-Time Buyer Relief Rules 2026

First-time buyers benefit from dedicated tax relief thresholds in England and Northern Ireland:

• Nil-Rate Threshold: 0% SDLT on property values up to £425,000.
• Discounted Band: 5% SDLT on the portion between £425,001 and £625,000.
• Eligibility Limit: First-time buyer relief applies only to properties priced at £625,000 or under. If a first-time buyer purchases a property exceeding £625,000, standard SDLT rates apply to the entire purchase price.

First-Time Buyer Example (£500,000 Purchase):

1. First £425,000 at 0%: £0
2. Remaining £75,000 (£500,000 - £425,000) at 5%: £3,750
3. Total SDLT Tax Due: £3,750 (Saves £8,750 compared to standard home movers!)

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Additional Property (Buy-to-Let & Second Home) 5% Surcharge

If you buy an additional residential property (such as a buy-to-let investment or a second holiday home) while retaining your main residence, HMRC charges a 5% surcharge on top of each standard SDLT band:

Additional Property Example (£300,000 Purchase):

1. First £250,000 at 5%: £12,500
2. Next £50,000 (£300,000 - £250,000) at 10%: £5,000
3. Total SDLT Tax Due: £17,500

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Non-UK Resident 2% Surcharge

Purchasers who are not present in the UK for at least 183 days during the 12 months preceding the purchase face an additional 2% Non-UK Resident SDLT Surcharge. This surcharge applies on top of both standard rates and additional property surcharges (creating maximum potential tax rates up to 19%).

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How to Calculate UK Stamp Duty Using CalculatorAll

Calculating tiered tax bands and overlapping surcharges manually can be complicated. The CalculatorAll UK Stamp Duty Calculator automates HMRC tax formulas:

1. Enter Purchase Price: Input the total agreed property price in GBP (£).
2. Select Buyer Type: Choose First-Time Buyer, Next Home Mover, or Additional Property / Buy-to-Let.
3. Select Residency Status: Indicate UK Resident or Non-UK Resident.
4. View Tax Breakdown: Instantly see total SDLT tax payable, effective tax percentage, and a breakdown of each tax band.

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Frequently Asked Questions

When is SDLT due after buying a property?

You have 14 days from the date of completion to file an SDLT return and pay the tax to HMRC. Typically, your conveyancing solicitor handles filing and submits payment on completion day.

Can I claim an SDLT refund if I sell my old main home later?

Yes. If you buy a new main residence before selling your old main residence, you pay the 5% additional property surcharge upfront. If you sell your previous main residence within 36 months, you can claim a full refund of the 5% surcharge from HMRC.

Does Scotland and Wales use the same SDLT rates?

No. SDLT applies only in England and Northern Ireland. Scotland uses Land and Buildings Transaction Tax (LBTT), and Wales uses Land Transaction Tax (LTT).

Can SDLT be added to a UK mortgage?

Yes, many lenders allow you to add the SDLT tax amount to your total mortgage borrow limit, though doing so increases your monthly mortgage repayment and total interest cost. Use the Mortgage Calculator to test loan amount variations.