“We will do what we can to help but if you do not pay the amount that you owe …, we will have to consider collecting the amount through the Self Assessment tax system. We prefer to keep the number of people who have to complete a Self Assessment to a minimum, but Self Assessment is our only way for collecting tax from individual taxpayers. If we need to use Self Assessment, you will have to fill in a Self Assessment tax return.”
“(2) P is liable to a penalty of 5% of the unpaid tax. (3) If any amount of the tax is unpaid after the end of the period of 5 months beginning with the penalty date, P is liable to a penalty of 5% of that amount.”
“(1) Liability to a penalty under any paragraph of this Schedule does not arise in relation to a failure to make a payment if P satisfies HMRC or (on appeal) the First-tier Tribunal or Upper Tribunal that there is a reasonable excuse for the failure. (2) For the purposes of sub-paragraph (1)— ( a ) an insufficiency of funds is not a reasonable excuse unless attributable to events outside P's control, ( b ) where P relies on any other person to do anything, that is not a reasonable excuse unless P took reasonable care to avoid the failure, and ( c ) where P had a reasonable excuse for the failure but the excuse has ceased, P is to be treated as having continued to have the excuse if the failure is remedied without unreasonable delay after the excuse ceased.”