If you believe that your employer has committed a wage violation (e.g., if he has refused to pay you wages you earned) then you need to file a complaint with the attorney general's office immediately. There are extremely strict penalties for employers who do not pay their employees, including automatic triple damages and attorney fees for a victorious employee. I recommend that you speak with an attorney.
how much does he owe you? If you kept your last paycheck, you should not have a problem declaring your income and withholdings on your tax returns. If he has refused to pay you money you earned, please give me a call monday to discuss or email me at firstname.lastname@example.org. Bill Harrington, 617-426-7400