Prisoners who have been in the system for longer than a year typically do not make much income. In fact, they may not even make enough to be required to file taxes. If the inmate does not have an outside prison source of income, they do not likely make enough money from inmate wages.
https://www.inmateaid.com/ask-the-inmate/do-inmates-have-to-file-tax-returns#answer
Accepted Answer Date Created: April 23,2016