How does “Companies the fee does not reach” work on the Statutory fees (ICO & CITB) page?

A foreign subsidiary shows Not applicable with the reason, and no figure, because a UK provision does not reach it. Which companies a UK rule applies to is decided in one place — Settings → Companies & entities → UK rules — where a person can also say Applies or Does not apply when the facts differ from the default. A failed read degrades to every company being a UK company, so an error never hides a fee. Where: Statutory fees (ICO & CITB) (/accounts/statutory-fees).