What this calculator covers
This calculator estimates residential property transaction taxes across the UK. It supports Stamp Duty Land Tax (SDLT) for England and Northern Ireland, Land Transaction Tax (LTT) for Wales, and Land and Buildings Transaction Tax (LBTT) for Scotland.
Who it is for
- Home movers buying a main residence
- First-time buyers checking likely tax costs
- Second-home and buy-to-let buyers comparing higher rates
- Users who want rates controlled centrally in a database table
How this version works
The calculator reads the tax bands from your database with PDO rather than hard-coding them in PHP. That makes future rate updates much easier, because you can insert a new tax year and reuse the same calculator logic.
Important note
This tool is designed for standard residential purchases only. It does not cover linked transactions, mixed-use property, lease rent calculations, company-specific edge cases, multiple dwellings relief, or bespoke relief claims.