Stamp Duty Land Tax (SDLT) must be paid if you are buying land or a property over a fixed amount. Currently for residential property, the threshold is £125,000 and £150,000 for non –residential land and properties.
You must pay this tax when you buy a freehold property, a new or existing leasehold, a property through a shared ownership scheme or are transferred land or property in exchange for payment (for example you take on a mortgage or buy a share in a house).
If you are buying a property as a buy-to-let investment, the Stamp Duty you will pay is 3% on top of the usual SDLT rate.
How much will you pay? SDLT rate - Property or lease premium or transfer value