Buying an additional residential property usually means higher stamp tax. Rules differ by nation.
From 1 April 2025 the higher rates are 5 percentage points above standard: 5% / 7% / 10% / 15% / 17%.
GOV.UK example: £300,000 additional dwelling → £20,000.00 (5%×£125k + 7%×£125k + 10%×£50k).
Source: GOV.UK higher rates.
Additional Dwelling Supplement is 8% of the full purchase price (from 5 December 2024), on top of LBTT.
Example: £250,000 → LBTT £2,100.00 + ADS £20,000.00 = £22,100.00.
Source: Revenue Scotland ADS.
From 11 December 2024 higher rates start at 5% on the first £180,000.
WRA example: £260,000 second home → £15,950.00.
Source: GOV.WALES LTT rates.
Replacing a main residence can avoid higher rates if you sell the old home within the statutory window. Check official guidance.