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system
isa - intra year profits and switching process
user
you're overthinking it. the isa limit applies to the amount you invest into the isa. in your example, £10,000. whether that then fluctuates with performance is irrelevant. even if you realise aprofit or a loss, nobody is watching it. you merely count the amount you originally contributed into the isa wrapper. when they add up to £15,000; that's the limit reached. (and by the way, remember that only money going into the isa is counted. it doesn't matter if you -let's say - put £15k in, then remove 10k. you've reached the limit. you don't again have the chance to put £10k 'back in'.
assistant