HMRC has announced they will not be charging the regular initial 5% late payment penalty if you make payment by 1st April 2021, however its not all good news; The regular payment deadline of the 31st of January hasn’t actually changed, and you will be charged interest after this date.
If you are having problems paying your self-assessment tax, and need more time to pay, you qualify for a “Time to Pay” arrangement with HMRC, you can even set this up online here. You can also call HMRC directly on 0300 200 3822 for more information.
So what is a Time to Pay arrangement? In a nutshell it allows you to spread your payments to HMRC in regular monthly instalments, up until January 2022.
If you still have not filed your Self-assessment tax return for 2019-2020, you need to do this before the 28th February to avoid penalties.