ECP8210 | Reviews and appeals: Reasonable excuse legal provisions
From HM Revenue & Customs · Excise Civil Penalties Manual
Please see the guidance in CH160000 for the most up-to-date guidance on reasonable excuse.
The provisions for reasonable excuse are contained in Section 10 of the Finance Act 1994. There is no legal definition of what constitutes a reasonable excuse, and what may be acceptable for one trader may not be satisfactory for another.
The law provides that
lack of funds to pay any duty due, and
delay and / or inaccuracy by any person relied on to perform any task
are not reasonable excuses.