I suspect you're correct. But I didn't mention lawn services or dog walkers. More than one cash-only person I've known worked in a business that produced at least some amount of paper trail. But like most cash-only people I've known, they only reported a fraction of what they actually made.
I guess my point is that if every time you went to get a haircut:
- your barber had to go online the day before and get approval to cut your hair from a government agency
- before your haircut started, your barber had to log in to a government system and verify your personal information
- after the haircut was done, your barber had to log back into the government system and certify successful completion of the haircut
- you then had to log into the same system to verify the haircut was completed
- the online documents you and your barber filled out then become a part of each of your government "records"
- you printed a temporary "certificate of haircut completion" to carry around with you
- your barber could expect to have your picture taken with them shaking your hand and posted on social media
- a few months later, you received an official plastic card from the government saying you had a successful haircut
Then there'd probably be very little tax fraud in the haircutting industry. I don't know that there is necessarily, I just randomly picked an industry that probably does a lot of cash transactions.
I'd be interested in hearing if anyone has some specific example of DPEs and tax fraud. As I've said before, I don't KNOW if there's little tax fraud among DPEs, but I suspect there is very little.
(By the way, I did have a lot of fun typing this example up.)