
The American Taxpayer Relief Act of 2012 (ATRA), P.L. 112-240, left corporate tax rates unchanged but increased the top individual tax rates. In 2013 the rate was 39.6% (up from 35%) for earned amounts in excess of $450,000 for married taxpayers filing jointly and surviving spouses, $425,000 for heads of households, $400,000 for singles, and $225,000 for married taxpayers filing separately. Under ATRA, threshold income …
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