You can use this government tool to check how much you might need to pay in Stamp Duty.
What are the dates to bear in mind?
The Stamp Duty Holiday was extended from 31 March to 30 June 2021.
After this date, the 0% Stamp Duty threshold will be reduced from £500,000 to £250,000 for three months until 30 September 2021.
It is worth bearing in mind you will need to complete before this date in order to benefit from the holiday. An average mortgage application takes from 8-12 weeks for the legal part to complete, and this is worth bearing in mind depending on the status of your application. (These timescales can vary.)