The last time I heard anything about Grint, it was something to do with having to pay 1.8m back tax.
Just looked it up and apparently this is the second dispute with HMRC, totalling
£2.8m
This tells me two things. Firstly he should be so bloody grateful to JKR, she has plucked him from obscurity and made him into a multi millionaire, secondly, you can tell a lot about a person and their tax affairs.