Stamp Duty Calculator 2026 (UK) – Instant SDLT Check

SDLT Calculator UK: How to Calculate Stamp Duty in 2026

Our SDLT calculator UK is a free online tool that helps you calculate Stamp Duty Land Tax for residential property purchases in England and Northern Ireland. The stamp duty calculator 2026 uses the latest HMRC rates published on 1 April 2025 to give you an instant, accurate estimate of your SDLT liability.

Whether you're a first-time buyer looking to benefit from SDLT relief, purchasing a second home with the additional property surcharge, or a buy-to-let investor, this stamp duty calculator 2026 HMRC rates tool handles all scenarios. Simply enter your property price and select your circumstances to see a complete band-by-band breakdown of your tax.

Stamp Duty Calculator 2026 HMRC: Official Rates & Thresholds

The stamp duty calculator 2026 HMRC rates reflect the official thresholds published by HM Revenue & Customs. Following the expiration of temporary relief measures, the current SDLT nil-rate threshold is £125,000 for standard residential purchases. This means you pay 0% stamp duty on the first £125,000 of your property purchase price.

Standard SDLT Rates for 2026 (England & Northern Ireland)

Use this SDLT calculator to calculate tax based on these official HMRC bands:

• £0 - £125,000: 0% stamp duty
• £125,001 - £250,000: 2% stamp duty
• £250,001 - £925,000: 5% stamp duty
• £925,001 - £1,500,000: 10% stamp duty
• Above £1,500,000: 12% stamp duty

First Time Buyer Stamp Duty Calculator 2026

First-time buyers receive significant SDLT relief when purchasing their first home. Our stamp duty calculator UK first time buyer feature automatically applies these reduced rates when you select the first-time buyer option.

First-Time Buyer SDLT Relief Rates

• £0 - £300,000: 0% stamp duty (FTB relief)
• £300,001 - £500,000: 5% stamp duty on the portion above £300,000
• Above £500,000: No first-time buyer relief - standard rates apply

For example, if you're buying a £400,000 property as a first-time buyer, you'll pay 0% on the first £300,000 and 5% on the remaining £100,000, totaling £5,000 in stamp duty. Without FTB relief, you would pay £10,000. Use our first time buyer stamp duty calculator to see your potential savings.

Buy to Let Stamp Duty Calculator UK & Second Home Surcharge

If you're purchasing an additional residential property, including buy-to-let properties, second homes, or holiday homes, you'll pay a 5% surcharge on top of the standard SDLT rates. Our buy to let stamp duty calculator UK automatically adds this surcharge when you select "additional property."

Stamp Duty on £400,000 House UK (Additional Property)

For a standard residential purchase of £400,000, the stamp duty is £10,000. However, if this is an additional property (buy-to-let or second home), the 5% surcharge adds £20,000 (5% of £400,000), bringing your total SDLT to £30,000.

Stamp Duty Calculator Gov UK: Using Official HMRC Rates

While GOV.UK provides a basic stamp duty calculator, our stamp duty calculator 2026 gov rates tool offers additional features including scenario comparisons, band-by-band breakdowns, and instant calculations for complex situations involving multiple surcharges.

This SDLT calculator uses the same official rates published on GOV.UK and HMRC.gov.uk, ensuring accuracy and compliance with current tax legislation. Whether you search for "stamp duty calculator gov uk" or "stamp duty calculator 2026 hmrc", this tool provides the same reliable results with enhanced visualization and explanations.

What Is Stamp Duty Land Tax (SDLT)?

Stamp Duty Land Tax (SDLT) is a tax charged when purchasing a residential property in England or Northern Ireland. The amount of SDLT you pay depends on the property price, whether you're a first-time buyer, whether this is an additional property, and whether you are considered a non-UK resident.

The current SDLT tax rates are valid from 1 April 2025 following the expiration of temporary relief. The nil-rate band is £125,000.

Why Use This Stamp Duty Calculator 2026?

This SDLT Calculator UK helps you:

• Calculate SDLT instantly using HMRC's 2025–2026 official rates
• See how each tax band applies to your property price
• Check if first-time buyer relief reduces your tax liability
• Estimate surcharge for second homes and buy-to-let (5%)
• Calculate the 2% surcharge for non-UK residents
• Compare different purchase scenarios side-by-side
• Get band-by-band breakdown of your SDLT calculation

The tool is ideal for home buyers, first-time buyers, property investors, solicitors, estate agents, mortgage brokers, and foreign buyers purchasing UK property.

Common Stamp Duty Calculations for 2026

How Much is Stamp Duty on a £400,000 House UK?

For a standard residential purchase of £400,000 in 2026, the stamp duty is £10,000. If you're a first-time buyer, the SDLT is reduced to £5,000 thanks to FTB relief. For an additional property (second home or buy-to-let), the total SDLT including the 5% surcharge is £30,000.

How Much Stamp Duty on £700k in the UK?

The Stamp Duty on a £700,000 property is £25,000 under standard rates. First-time buyer relief does not apply to properties priced above £500,000, so first-time buyers purchasing a £700k property pay the full £25,000. With the additional property surcharge, the total becomes £60,000.

Stamp Duty Calculator UK Second Home

Use our stamp duty calculator UK second home feature to calculate the additional 5% surcharge that applies to all second homes, holiday homes, and buy-to-let properties. For example, on a £300,000 second home, you'll pay £5,000 in base SDLT plus £15,000 surcharge (5% of £300,000), totaling £20,000.

How Stamp Duty Is Calculated (Easy Explanation)

SDLT is calculated using a tiered band system. Just like income tax, each portion of your property price is taxed at the rate of the band it falls into.

For example, if your property costs £300,000:

• £0 – £125,000 taxed at 0% = £0
• £125,001 – £250,000 taxed at 2% = £2,500
• £250,001 – £300,000 taxed at 5% = £2,500
• Total SDLT: £5,000

Our stamp duty calculator 2026 automatically applies these values band by band and shows you a clear breakdown.

Who Needs to Pay Stamp Duty in 2026?

You must pay SDLT if you are:

• Buying a freehold or leasehold property
• Using shared ownership schemes
• Purchasing land for development
• Buying a second home or investment property
• A non-UK resident buying UK property

SDLT Calculator: Non-UK Resident Surcharge

Non-UK residents purchasing residential property in England or Northern Ireland must pay an additional 2% SDLT surcharge on top of standard rates. This applies regardless of whether you're a first-time buyer or purchasing an additional property.

For example, a non-UK resident purchasing a £500,000 property would pay £15,000 in base SDLT plus £10,000 in non-resident surcharge (2% of £500,000), totaling £25,000. If this is also an additional property, the combined surcharges would be 7% (5% additional property + 2% non-resident).

Will Stamp Duty Rates Change in 2026?

The rates shown in this stamp duty calculator 2026 reflect the changes that took effect from 1 April 2025. Current legislation has set these thresholds for the 2025-2026 tax year. Any future changes would be announced in the Chancellor's Budget and implemented through Finance Acts.

This SDLT calculator UK will be updated immediately when HMRC announces any rate changes to ensure you always have access to the most current stamp duty calculations.

Stamp Duty FAQs

1. How do I use this stamp duty calculator 2026?

Enter your property purchase price, select whether you're a first-time buyer, additional property owner, or non-UK resident, then click "Calculate Stamp Duty." The SDLT calculator UK will instantly show your total tax with a detailed band-by-band breakdown.

2. Is this SDLT calculator accurate for 2026?

Yes. This stamp duty calculator 2026 HMRC uses official rates published on GOV.UK effective from 1 April 2025. It accurately calculates SDLT for all standard residential property purchases in England and Northern Ireland.

3. Do first-time buyers pay Stamp Duty in 2026?

First-time buyers pay 0% stamp duty up to £300,000 and 5% on the amount between £300,001 and £500,000. Use our first time buyer stamp duty calculator to see your exact liability and potential savings.

4. What is the stamp duty on a second home?

Second homes, buy-to-let properties, and additional residential properties incur a 5% SDLT surcharge on top of standard rates. Use our stamp duty calculator UK second home feature to calculate this additional cost.

5. Is there a Stamp Duty surcharge for non-UK residents?

Yes. A 2% SDLT surcharge applies to all non-UK residents purchasing residential property in England and Northern Ireland. This is in addition to standard rates and any other applicable surcharges.

6. Is SDLT different in Scotland and Wales?

Yes. Scotland uses Land and Buildings Transaction Tax (LBTT) and Wales uses Land Transaction Tax (LTT). This stamp duty calculator 2026 covers England and Northern Ireland only.

7. Can I use this as a buy to let stamp duty calculator UK?

Absolutely. Select "additional property" when using the calculator to automatically add the 5% buy-to-let surcharge to your SDLT calculation.

8. Where can I find the official GOV.UK stamp duty calculator?

HMRC provides a basic stamp duty calculator on GOV.UK. Our enhanced SDLT calculator UK offers the same accuracy with additional features like scenario comparisons and detailed breakdowns.

9. How accurate is this SDLT calculator compared to the HMRC calculator?

This calculator uses identical rates and thresholds to the official HMRC stamp duty calculator, ensuring the same level of accuracy while providing enhanced visualization and explanation features.

10. Does this stamp duty calculator 2026 gov include all applicable surcharges?

Yes. The calculator includes the 5% additional property surcharge and 2% non-UK resident surcharge, and accurately combines them when both apply (total 7% surcharge).

Conclusion: Your Complete Stamp Duty Calculator 2026 Solution

Whether you need an SDLT calculator UK for a first-time purchase, a buy to let stamp duty calculator UK for investment properties, or want to calculate stamp duty with the non-UK resident surcharge, this free tool provides instant, accurate results based on official HMRC 2025-2026 rates.

Bookmark this stamp duty calculator 2026 HMRC rates page and return whenever you need to calculate SDLT for property purchases in England and Northern Ireland. With features like scenario comparison, band-by-band breakdowns, and support for all surcharges, it's the most comprehensive free SDLT calculator available online.

Note: This stamp duty calculator is for residential properties in England and Northern Ireland only. For Scotland, use an LBTT calculator. For Wales, use an LTT calculator. Always verify calculations with a qualified tax advisor or solicitor before completing your property purchase.