Did you need to defer your second payment on account for self assessment?
You can still pay your deferred July 2020 payment on account any time up to 31 January 2021. There’ll be no interest or penalty as long as you pay in full by that date.
If you have chosen already to defer this payment and receive a Self Assessment statement before 31 January 2021 it may still show the deferred July 2020 payment on account as due and payable now.
You can still pay your deferred July 2020 payment on account any time up to 31 January 2021. You’ll not have interest or a penalty as long as you pay in full by that date.
Find out more here "Self Assessement"