Yeah, they send out a receipt that I promptly delete. It's also in the online system, I just never bothered to really look at it.Wait, your brokerages don't send you a receipt for each trade? I do all my trading in-house to avoid commissions, but I get a detailed receipt of each trade by e-mail and can have back office print a periodical summary no problem. I assume our regular customers get the same service, but I guess it can be harder if you use multiple brokerages.
Yes, each share you buy comes with its own tax base. So if you have 100 shares at $5 and 100 shares at $10, then sell when the stock price is $7.50 you could either realize a profit or a loss. Which happens depends on which shares you sell. So the brokerage gives you an option to either sell the cheapest shares, the ones that minimize your taxes, the ones that let you "harvest" a loss (so you can balance it with some other gains), or just sell whichever stocks you bought first/last.Also, does "sell shares bought first" make a difference in the US tax system? Over here you average out your entry price whenever you buy new shares, and taxes on realization are calculated based on that average.