The amount of Stamp Duty you pay depends on the property's purchase price and your eligibility for any reliefs or additional rates.
For example, under the standard residential rates currently applicable in England, a buyer purchasing a property for £400,000 would pay £10,000 in Stamp Duty, assuming no reliefs or surcharges apply.
Use the Foxtons Stamp Duty Calculator to estimate the amount payable on your intended purchase. Your final liability will depend on your individual circumstances and the rules applicable when you buy.