Cash businesses are just any kind of place that operates in cash, like groceries, delis, car washes, restaurants etc. With more and more people using debit cards or using credit cards as cash, it is probably decreasing some, but not going away entirely. You also get some tradesmen who will try to get at least some jobs in cash.
It is common for cash businesses to "skim," i.e. make some of the cash disappear from the IRS. Often this cash is used to pay employees off the books. Paying overtime in cash is typically a win-win, since neither side has to pay taxes, and the business saves the overtime surcharge as well.
"I don’t mind a banshee, that’s fine. 2 banshees? I HATE you. I actually wish bad things upon you." -- Day Daily #459 P1
These places of business pay "cash only" "off the books"? NEVER heard of that.
You have really never heard of businesses or workers that want cash and don't declare it?
i agree, deceptive practices are