Stamp Duty Calculator

This calculator shows exactly what you owe in Stamp Duty Land Tax based on your purchase price and buyer status, including first-time buyer relief where it applies. It also shows how close you are to the thresholds where band changes create large jumps in the tax bill.

How stamp duty bands work

SDLT is charged in slices at different rates, not as a flat percentage of the full price.

First-time buyer relief

Eligible buyers pay no SDLT up to a threshold, with relief phasing out above it rather than cutting off sharply.

Where thresholds distort decisions

Buyers sometimes compromise on the property to avoid crossing a band, which can be a false economy.