The higher your salary, the higher your tax rate. If you just got a raise or took a new job at a higher salary, the change in the marginal tax rate on the additional income will definitely affect your paycheck. For example, if a salary increase of $6,000 per year bumps you up into a higher tax bracket, the percentage of your income that goes to taxes bumps up as well—which will make your paycheck smaller than expected. If you’re considering a move to a more expensive area to accept a higher salary, keep that in mind.