You must pay Stamp Duty Land Tax (SDLT) if you buy a property or land over a certain price in England, Wales and Northern Ireland.
The current SDLT threshold is £125,000 for residential properties and £150,000 for non-residential land and properties.
You can calculate how much you will need to pay with this app.
*SDLT no longer applies in Scotland. Instead you pay Land and Buildings Transaction Tax when you buy a property.*