<prompt> Human: I have seen this question asked before, but I cannot find it, so if this is answered somewhere else I would gladly be redirected.I worked for my university and was paid 2070 a month. After taxes, it was 1729.82. I gave my office 3 months notice I was leaving on 43015, but they dragged their feet doing everything. I was paid my regular salary on 52915 even though I worked 0 hours in may. They sent me an email this morning asking me to write a check for 1188.74. Questions:1. While I would love 600 free, I feel like I could get in trouble if I dont correct them. Am I?2. Should I write the check? Cant they just charge my account?3. Does my writing a check have tax implications?  <response>: I faced this with my older employer last year. He accidentally deposited an extra paycheck after I stopped working. Once he discovered that, he asked me to write a personal check.I posted a few threads here, and the biggest issue was the risk they your employer would pocket the money without adjusting your payroll information. That way it would look like you received that money, and thus pay taxes on it.I was advised to ask him to reverse the payment. He claimed he couldnt, and again asked for a personal check. I agreed to do it in exchange for two things: a signed document stating I had returned the money due to an overpayment error on their side, and an updated payroll form indicating the final paycheck had been reversed.Luckily when I got my W2, it was correct, but in the case it was not then I had the documents I needed to challenge it. 