Expand on this please, what corporations are involved? As far as I understand it Tax dollars pay for state and county jails. The fact that the people locked up don't pay taxes makes it even more of a money losing situation.
ok.. take a state agency... say... the texas board of accountancy.
now, the texas board of accountancy has to have archives of all their documents.. all applications... all credentials.. all transcripts.. all diplomas...disciplinary reports... ect.... everything.
for these archives, they need digital as well as micro-film copies.
now, these are thousands upon thousands of documents that need to be archived each year. each document needs to be filmed and scanned and developed and proofed and stored.
this is a time consuming and tedious job... also a skilled job working with german zeutschel cameras that cost 10's of thousands of dollars.... the state agency would expect to pay $15-20/hour for that job.
so what happens? the prison gets paid 50% of that (7.5-10/hr per worker) and pays the inmate $.25. So 100 hours for only $25... whereas out of that 100hrs, the prison makes $725-$875 PER WORKER... ususally there are 15-20 if not more, workers.
this is true for the majority of prison industries.... some prison industries even pay minimum wage... or close to it... because the can afford to because they bill $30+.
and yes, if you make money in prison, enough to qualify to pay tax... you will pay tax.
if you're 'indigent' and don't have any money... you can order shampoo and razors and toothpaste on commissary, but you will OWE the prison for it... and as soon as you get a 'job' (prison job, not when you get out) or you get some money sent in from friends/fam, the prison will take their cut.