It also doesn't ask you if you participate in a 401k, have a mortgage on a primary residence, etc. Everyone's income taxes are different. And even more than t

It also doesn't ask you if you participate in a 401k, have a mortgage on a primary residence, etc. Everyone's income taxes are different. And even more than that, deductions, exemptions, and credits make the final income tax very different from simply applying the marginal rates to your salary. It's interesting comparing your actual tax paid last year to the "Current Structure" number-- it's likely significantly less.