This tool calculates Wales’s Land Transaction Tax (LTT), which replaced UK Stamp Duty in 2018 and is collected by the Welsh Revenue Authority. It supports main-residence purchases and the higher-rate bands for additional dwellings. Wales has no first-time-buyer relief. It is a planning estimate.
How it works
LTT is progressive: each portion of the price within a band is taxed at that band’s rate, then the slices are summed.
Main residential bands:
- 0% up to 225,000
- 6% on 225,001 to 400,000
- 7.5% on 400,001 to 750,000
- 10% on 750,001 to 1,500,000
- 12% above 1,500,000
Higher rates (additional dwellings, from 11 Dec 2024):
- 5% up to 180,000
- 8.5% on 180,001 to 250,000
- 10% on 250,001 to 400,000
- 12.5% on 400,001 to 750,000
- 15% on 750,001 to 1,500,000
- 17% above 1,500,000
Example
Main-residence purchase at 300,000:
- 0% on the first 225,000 = 0
- 6% on 225,001 to 300,000 (75,000) = 4,500
- Total LTT = 4,500.
Notes
Returns are due within 30 days of completion, usually filed by your conveyancer. The higher rates apply to the entire purchase price (not as a separate surcharge). Bands are set by the Senedd and can change. All math runs in your browser.