Is it illlegal to cash a check from your employer that overpaid you?

she needs to have her employer redo the check. for the correct amount. she should get paid.

Depending on your friend's relationship with her employer, she's liable to be fired. If she works for a set number of hours per pay period and each paycheck is for the same amount of $, it will be hard for her to argue that she didn't know she'd been overpaid. Over-payment is not free money. She has to immediately discuss this with her employer and make arrangements to either pay back the overage or work it off.

If they find out they will doc your pay next pay check. Also, they can fire you or charge you with theft if they can prove you knowingly cashed a check you knew was wrong. What you got to ask yourself is the extra money worth your job.

It is not illegal, however, she is responsible for refunding them any overpayment. So she can't just spend the money.

next check will be less, so don't worry,

you can't cheat

Simple answer is no it is not illegal.

Cash it. Why would it be illegal?