Guess the tax authorities will just tell us: «Here is the money you invested as a fact via your broker account. Now you have to show us and prove.» Do you think this is unlikely, Alan?
I would advise NOT using a brokerage account for a start! If you do that, then you could always claim: a). You haven't realised a capital gain & therefore no tax id due, b). You've lost it... i.e sent it to the wrong account.
Guess the tax authorities will just tell us: «Here is the money you invested as a fact via your broker account. Now you have to show us and prove.» Do you think this is unlikely, Alan?
I would advise NOT using a brokerage account for a start! If you do that, then you could always claim: a). You haven't realised a capital gain & therefore no tax id due, b). You've lost it... i.e sent it to the wrong account.