CH26400 | Information & Inspection Powers: penalties: when is a penalty chargeable: reasonable excuse: what is not a reasonable excuse
From HM Revenue & Customs · Compliance Handbook
While you must consider all relevant circumstances, there are some situations which we will not normally accept alone as a reasonable excuse.
Doing nothing because of a lack of understanding.
Pressure of work.
Assembling information or finding documents or assets is too difficult.
HMRC did not remind me.
What is or is not a reasonable excuse is personal to the individual’s abilities and circumstances. Those abilities and circumstances may mean that what is a reasonable excuse for one person may not be a reasonable excuse for another.
The law mentions two specific situations that are not reasonable excuses. These are
FA08/SCH36/PARA45 (2)
CEMA79/S118G