<prompt> Human: So I work for the state of Washington, and overtime is almost always available. I have three weekends on this pay period, and Im thinking of working an extra day for each week. My coworkers keep telling me that this will cause me to move up a tax bracket.My questions are:1. If I move up a tax bracket, will my paycheck still be larger than it would would be if I worked two overtime days in a pay period?2. When moving up in tax brackets, will I remain in the higher bracket for the rest of the year, causing my normal no OT paychecks to be smaller? Im paid by salaryI can provide additional information if its needed, thanks!  <response>: Your coworkers are dumb. Quoting something I wrote elsewhere that ought to cover this.If you take your taxes and divide them by your AGI youll get what percentage of each dollar youre paying in taxes. While some dollars will be taxed at 0 first 10,300 for example and others at 25 or whatever theyre all grouped together so you will have an effective tax rate. This can be pretty confusing when trying to work out how your taxes work in the case of bonuses, raises and other unexpected money.The IRS will estimate your AGI and then work out your effective tax rate, as you have just done. Rather than say that you owe nothing on the first dollar and 25 on the fifty thousandth dollar they put them all together and take an amount out of each. But if they have to revise their estimate of your AGI then thatll change your entire effective tax rate for the year, including the paychecks in the past. If they were taking 5 out of each paycheck to cover your taxes but it turned out that, due to your huge Christmas bonus, they should have been taking 6 out then they cant exactly go back in time and take more out of each. So instead your bonus doesnt get grouped with the rest of your pay, it gets its own group on top of the rest of your pay. Dollars one to fifty thousand are already accounted for in terms of taxation so the bonus dollars arent grouped with them but instead form a group at 50,001 and up. This group will have its own effective tax rate which will be much, much higher than the one of the first group because theyre all in higher brackets.At the end of the year itll all work out of course. You were undertaxed on the first 50,000 because it assumed that you were only earning 50,000 so your effective tax rate on that block was too low. And then you were overtaxed on the block above 50,000 to compensate for that. Thats how the phenomenon of I swear my bonuses are taxed at a different rate than my regular pay comes about. Its true, but not meaningfully true, just a feature of how they revise their estimates. 