<prompt> Human: When I first started we got weekly paychecks and my check was always 602.81after taxes 769.23 before and insurance was taken out. Now that we have went to bi-weekly I expected my checks to be 1,205.62. Instead, my paycheck was 1,092.69 after taxes and insurance 1,538.46 before. Can anyone tell me why more taxes are being taken out now? All other factors like allowances and insurance stayed the same. I asked the owner who does payroll and he looked at it and had no idea. He told me to call ADP but they said they couldnt help me only my owner can. I just need someone to explain it to me.  <response>: Try resubmitting your W4 Withholding Allowance Form. They might have made a mistake when they changed the system and might have transferred your personal information to the new system incorrectly. So you might have gotten some default tax bracket which is worse than what you had before.If you look at your new payslip compared to the old one is it the tax amount the only one that changed more than doubled? Or are other amounts incorrect as well?Edit: this happened to me when I started my current job, somehow the payroll system set me up as Married but withhold at a higher single rate, which is something Ive never used before, but I think thats the default option when a new account gets created. 