In essence, in the UK, can someone raise a defence of an unreasonable yet good-faith misunderstanding if charged with tax evasion?
In Cheek v. US, the US Supreme Court stated that a defendant’s mere honest belief that their actions were not criminal, regardless of whether that belief was objectively reasonable, is a valid defence against criminal charges of federal tax evasion.
Does the UK have a similar defence, or, to disprove the prosecution has established mens rea, must any good-faith misunderstanding of the tax code be objectively reasonable, rather than reasonable in the eyes of the defendant?