If money is coming up missing from my job, is it legal to charge the employees to make up the deficit?

The question is governed by the Fair Labor Standards Act (FLSA). Unless you have a contract (which you probably do not), the employer is free to change your wages as long as he has paid you at least the minimum wage ($7.25/hour) for every hour you work up to 40 hours and 10.88 per hour for every hour you work over 40 hours.  If you have a contract with a set rate of pay, then the employer would be violating it unless some clause in the contract allows him to deduct for losses.    Michael A. Caldwell 404-979-3154