If you also pay State tax, you can see how your marginal tax rate can easily reach 45 % on your last dollar of income earned! (financialsamurai.com)
Your nut has grown large enough where it's providing you hundreds, if not thousands of dollars of income from interest or dividends. (financialsamurai.com)
The tax credits «phase - out» within certain income ranges, with their value dropping with each additional dollar of income. (educationnext.org)