Second homes have been subject to a 3% SDLT surcharge since April 2016, and similar surcharges apply in Wales (3% LTT) and Scotland (4% LBTT).

These surcharges are not supposed to apply to the purchase of a main home, but purchasers can be caught out if they buy a replacement main
home before completing the sale on their old home.

Where the buyer holds two or more homes at the end of the day of completion the surcharge applies. But this surcharge can be reclaimed if the old home is sold within a specified window, set at three years for property purchases in England, Wales and Northern Ireland, but just 18 months in Scotland.

As the UK property market was effectively frozen due to the coronavirus shut-down many sales fell through and some buyers have been left holding two homes for longer than expected. The UK and Scottish Governments have reacted by extending the window for sale of the old home in slightly different ways.

Scottish home-owners can enjoy a limited extension to the window for sale to three years, where the new home was purchased between 24 September 2018 and 24 March 2020. This is legislated for in the Coronavirus (Scotland) (No.2) Act 2020, Schedule 4 part 5.

Home-owners in England or Northern Ireland have been given an open-ended flexibility for the sales window where the new home was purchased on or after 1 January 2017. If the buyer can show that exceptional circumstances applied to prevent the sale of the old home, such as the coivd-19 pandemic, the sales window for the old home is extended.

The taxpayer will be expected to complete the sale of their old home as soon as reasonably possible after the exceptional circumstances have ceased. HMRC will only make a judgement on whether the exceptional circumstances condition applies once the former home is sold and a SDLT refund application has been submitted.

The Welsh Government has made no similar adjustment to the rules for the LTT surcharge.