You work hard every day and once again tax season has come and it looks like you are going to get much of a refund again this season. This could as being a good thing though.read on. Marginal tax rate will be the rate of tax devote on your last (or highest) involving income. In the last described example, the individual is being taxed with a marginal tax rate of 25% with taxable income of $45,000. And also mean she or he is paying 25% on her last dollars of income (more than $33,950). ...