My financial files are a bit of a shambles. Pending much overdue housekeeping and phoning around, I'm not sure whether I've already used my ISA allowance for the current (2016-17) tax year.
Presumably HM Revenue & Customs have a database to police the rules although I suspect it's unlikely to be impressively up to date.
If such a database exists, can the public access it, directly or indirectly?
I'm also curious. If some enthusiastic investor opens successive cash or share ISAs, deliberately or mindlessly ignoring the rules, what actually happens in practice?