<prompt> Human: I work for a major cell provider and have been for some time now. Does this sound like an error? If so, do I need to contact payroll or the IRS or some third group of mystical tax trolls?Edit: I am not including non-tax line items in these amounts. The taxed amounts in the title are listed simply as taxes. Edit2: I am not looking at YTD taxes. That would be much more than 550. Edit3: I am paid every two weeks and have earned approximately 8000 YTD. Edit4: Im not union. I pay for insurance out of each check. This is a regular salary check based on hours worked, not a bonus or anything. Edit5: Short of dumping an unearthly amount of financial information here, it looks like Ill just have to wait for my company to tell me what the deal is. FINAL UPDATE: Mystery Solved. I contacted payroll and discovered that a Google Pixel 2 XL that I received from a Google contest which was held by Google for employees of my company was taxed at 22. So basically it counted as a bonus even though it wasnt my company that gave it to me.  <response>: Anyone here would be guessing based on virtually no information.How often are you paid, why the difference in pay, what each tax was that went into the taken out in taxes, any changes to your W4, any pre-tax withholding changes 401k, medical insurance, ... 