“( 4) If P makes 1, 2 or 3 defaults during the tax year, the amount of the penalty is 1% of the amount of tax comprised in the total of those defaults. (5) If P makes 4, 5 or 6 defaults during the tax year, the amount of the penalty is 2% of the amount of tax comprised in the total amount of those defaults. (6) If P makes 7, 8 or 9 defaults during the tax year, the amount of the penalty is 3% of the amount of tax comprised in the total amount of those defaults. (7) If P makes 10 or more defaults during the tax year, the amount of the penalty is 4% of the amount of tax comprised in those defaults. (P means a person liable to make payments)”
“(1) If HMRC think it right because of special circumstances, they may reduce the penalty under any paragraph of this Schedule. (2) In sub-paragraph (1) “special circumstances” does not include – (a) ability to pay, or (b) the fact that a potential loss of revenue from one taxpayer is balanced by a potential over-payment by another. (3) In sub-paragraph (1) the reference to reducing a penalty includes a reference to- (a) staying a penalty, and (b) agreeing a compromise in relation to proceedings for a penalty.”
“Failure to make a payment will not give rise to a penalty if the tax payer satisfies the tribunal that there is a reasonable excuse for the failure. But an insufficiency of funds is not a reasonable excuse unless attributable to events outside the tax payers control. Nor is it an excuse where the tax payer relies on another person to do anything unless the tax payer took reasonable care to avoid the failure; and where the tax payer had a reasonable excuse for the failure but the excuse has ceased, the tax payer is to be treated as having continued to have the excuse if the failure is remedied without unreasonable delay after the excuse has ceased.”