THE tax man is launching a compliance crackdown on small businesses operating in cash as it seeks to claw back some of the $23 billion lost to the “black economy”. Officers from the Australian Taxation Office will visit more than 400 businesses across Perth and Canberra over the next month as part of a campaign to “help small businesses stay on top of their tax affairs”. The ATO will collect data during the visits, “which we may later use for audit purposes with businesses th