Stamp Duty Land Tax UK — Smart Financial Analysis
Calculate your UK Stamp Duty Land Tax (SDLT) with first-time buyer relief and additional property surcharge. Accurate band-based calculations.
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SDLT is a tax paid when buying property in England and Northern Ireland. An extra 3% on top of standard rates for second homes, buy-to-let properties, and companies buying residential property. Yes, 0% on first £425K, 5% on £425K-£625K. Within 14 days of completion (the day you legally become the owner).
Ready to run the numbers?
Why: SDLT is a tax paid when buying property in England and Northern Ireland. It's calculated in bands (like income tax). Scotland has LBTT and Wales has LTT with different rates.
How: Enter Property Price (£), First-Time Buyer, Additional Property to get instant results. Try the preset examples to see how different scenarios affect the outcome, then adjust to match your situation.
Run the calculator when you are ready.
📋 Quick Examples — Click to Load
Property & Buyer Information
SDLT Breakdown by Band
| Band | Rate | Taxable | SDLT |
|---|---|---|---|
| £0K - £250K (0%) | 0% | £250,000 | £0 |
| £250K - £925K (5%) | 5% | £150,000 | £7,500 |
| TOTAL | £7,500 | ||
Interactive Analysis
📊 SDLT by Band
Tax breakdown across rate bands
🍩 SDLT Composition
Base SDLT vs surcharge
📊 Standard vs First-Time vs Additional
SDLT comparison by buyer type
📈 SDLT at Different Prices
Price sensitivity (Line)
🎯 Your SDLT Summary
For £400,000 property (Standard)
Total SDLT due (1.88% effective rate)
For educational purposes only — not financial advice. Consult a qualified advisor before making decisions.
💡 Money Facts
Stamp Duty Land Tax UK analysis is used by millions of people worldwide to make better financial decisions.
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Stamp Duty Land Tax is one of the largest transaction costs when buying property in England and Northern Ireland, potentially adding tens of thousands of pounds to the purchase price. The progressive band system means SDLT rises steeply above £250,000. First-time buyer relief saves up to £10,000, while the additional property surcharge adds 3% across all bands.
Sources: HMRC, GOV.UK, Law Society, Council of Mortgage Lenders.
Key Takeaways
- • SDLT applies only in England and Northern Ireland; Scotland and Wales have separate taxes (LBTT, LTT)
- • First-time buyers pay 0% on first £425K and 5% on £425K–£625K for properties under £625K
- • Additional properties (second homes, buy-to-let) incur a 3% surcharge on top of standard rates
- • Payment is due within 14 days of completion; your solicitor typically handles the return
Did You Know?
How Does SDLT Work?
Progressive Bands
SDLT is calculated like income tax: each band is taxed at its rate. On a £500K purchase, you pay 0% on £250K, 5% on £250K–£500K = £12,500.
First-Time Buyer Relief
0% on first £425K, 5% on £425K–£625K. Only applies if the property costs £625K or less. Above that, standard rates apply.
Additional Property Surcharge
An extra 3% on the full purchase price for second homes, buy-to-lets, and company purchases. Applied on top of standard or first-time rates.
Expert Tips
SDLT Rate Bands (Standard)
| Band | Rate |
|---|---|
| Up to £250,000 | 0% |
| £250,001 – £925,000 | 5% |
| £925,001 – £1,500,000 | 10% |
| Above £1,500,000 | 12% |
Frequently Asked Questions
What is Stamp Duty Land Tax?
SDLT is a tax paid when buying property in England and Northern Ireland. It's calculated in bands (like income tax). Scotland has LBTT and Wales has LTT with different rates.
What are the current SDLT rates?
0% up to £250K. 5% on £250K-£925K. 10% on £925K-£1.5M. 12% above £1.5M. First-time buyers: 0% up to £425K, 5% on £425K-£625K (properties under £625K only).
What is the additional property surcharge?
An extra 3% on top of standard rates for second homes, buy-to-let properties, and companies buying residential property. A £300K second home: £2,500 standard + £9,000 surcharge = £11,500.
Do first-time buyers get relief?
Yes, 0% on first £425K, 5% on £425K-£625K. Only for properties under £625K. Above £625K, standard rates apply. This saves up to £10,000 compared to standard rates.
When do I pay SDLT?
Within 14 days of completion (the day you legally become the owner). Your solicitor/conveyancer usually handles this. Late payment incurs penalties and interest from HMRC.
Are there any SDLT exemptions?
Transfers between spouses/civil partners, inheritance, properties under £250K (or £425K first-time), charity purchases, and certain corporate transfers are exempt or reduced.
Key Statistics
Official Data Sources
⚠️ Disclaimer: This calculator is for educational purposes only. SDLT rates and reliefs may change. Always verify with HMRC or a qualified conveyancer before completing a purchase. Not financial or legal advice.
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