The core second home question
The practical question is not just whether the property is a holiday home. It is whether, at completion, you will own more than one residential property and whether the deal qualifies as a replacement of your main residence. If it does not, the higher rates usually apply.
When the surcharge usually applies
Common cases include a buyer keeping their current home while purchasing another one, an investor buying a rental flat after already owning a residence, or a holiday-home buyer adding a second property to their portfolio. In all of those situations, SDLT often rises materially.
Replacement of a main residence is the main exception
Buyers moving home often avoid the surcharge if the transaction counts as a genuine replacement of their main residence. The timing of the sale and purchase matters, which is why many movers run the numbers both ways before exchange and completion.
Run the exact SDLT scenario
Use the calculator to compare standard residential rates against the additional dwelling path before you commit to the transaction structure.
Open UK Stamp Duty Calculator