About this calculator

England/NI SDLT 2025 bands: 0% up to £125k, 2% £125–250k, 5% £250–925k, 10% £925k–1.5m, 12% above. First-time buyers: 0% up to £300k.

Frequently asked questions

What does the UK Stamp Duty (SDLT) Calculator do?

England & NI SDLT for a residential purchase (2025 thresholds). England/NI SDLT 2025 bands: 0% up to £125k, 2% £125–250k, 5% £250–925k, 10% £925k–1.5m, 12% above. First-time buyers: 0% up to £300k.

Is the UK Stamp Duty (SDLT) Calculator free to use?

Yes. Every calculator on Calcurly.com is free, works in your browser without sign-up, and can be embedded on your own website.

How accurate is the UK Stamp Duty (SDLT) Calculator?

Results are calculated in real time using industry-standard formulas. Treat the output as a well-informed estimate — always cross-check with local regulations, product datasheets, or a qualified stamp duty / sdlt professional before committing to a purchase or a job.

What inputs does the UK Stamp Duty (SDLT) Calculator need?

Enter values for: Purchase price (£), First-time buyer?. Sensible defaults are pre-filled where possible so you can start with a single change.

Can I embed the UK Stamp Duty (SDLT) Calculator on my own website?

Yes — copy the iframe snippet at the bottom of this page, or use the Embed Generator to customise the size. The embedded version stays in sync with the live calculator on Calcurly.com.