is it legal for my employer to pay me cash by the day instead of the hour and not give me any tax documents to file my taxes even if im beu

It is perfectly lawful for an employer to pay his employees in cash. You have no legal right to insist on being paid a raise or given breaks. Unless you have uncompensated overtime, it may be difficult or impossible to demonstrate that you are entitled to any additional compensation not already paid to you. It is unclear why you have not received any tax documents or how you have been harmed as a result.