<prompt> Human: So, I work a full time job, roughly 70 hours a pay period, for a hospital in TN. I work 14 hour shifts and I receive a shift differential for a portion of each shift. For example: On my pay stubs my employer is taxing me as working 109 hours on my last pay stub. I only worked 69.50 hours, 39.50 of which I earned the shift diff. Is this normal? My understanding is that I am paying taxes on my income as if I worked 109 hours. I tried google, but I didnt get any results that were relevant, I think because I dont know exactly what question I should be asking. Any help is sincerely appreciated, I just dont have a full understanding on how this is supposed to work.  <response>: Your paycheck is taxes based on the amount of income you make. If you make more money one pay cycle, you will be taxed at a higher percentage than other lower pay cycles. If you have enough of a buffer in your account, you can ignore it for now and if you overpaid in taxes youll get it back after you file.If it becomes a pattern that you regularly over-withhold, youll want to look into adjusting your withholding. But for now, let it be. 