Property

Stamp Duty (SDLT) Calculator

Estimate Stamp Duty Land Tax for England and Northern Ireland, including first-time buyer relief and applicable surcharges. Check the linked GOV.UK source for current bands.

Use the interactive calculator below for an instant estimate. Results depend on your inputs and the assumptions shown on the page.

Methodology and source status

Scope: Property, mortgage, landlord, and home-moving estimates; tax rules vary across UK nations.

Primary reference: GOV.UK Stamp Duty Land Tax guidance.

Source record: Direct statutory or government source. This link is the calculator-specific evidence path, not a statement that every individual input or exception is current.

Effective period: England and Northern Ireland only; check the linked guidance for current bands and surcharges.

Review status: Source path published; no named calculator-level review is currently represented here.

Last source or expert review: No calculator-level source or expert review date is published.

Technical validation: 12 August 2026 — catalogue build, route, metadata, and internal-link checks completed. This is a technical delivery check, not a review of current rates, rules, sources, calculations, or personal circumstances.

Next review trigger: Review when a relevant rate, threshold, provider fee, tax period, rule, or formula changes.