Tax on interest

We recently sold our main house and there was a 2 month period before our new purchase went through, during this time we earnt interest on monies in the bank.do qe need to declare this interest ?

Hi,
Please see the link below. This should allow you to determine if you need to declare interest and/or pay the tax on it.
Tax on savings interest: How much tax you pay - GOV.UK (www.gov.uk)
Thank you

Hi, I have completed my tax return but I am a little confused as to why the amount I put in the untaxed interest box was different to that in the calculation section once the £1000 was deducted. The difference was plus £563. Therefore the amount after 20% was more than if it had been the figure submitted on the tax return. Where does the £563 increase come from? Thank you.

Hi,
For a more detailed answer to this question, you would need to contact our Self Assessment team below. 
Self Assessment: general enquiries  
Thank you