The Act has also extended the tax credit of up to $8,000 for qualified first-time home buyers purchasing a principal residence. The tax credit now applies to sales occurring on or after January 1, 2009 and on or before April 30, 2010. However, in cases where a binding sales contract is signed by April 30, 2010, a home purchase completed by June 30, 2010 will qualify.  For sales occurring after November 6, 2009, the Act establishes income limits of $125,000 for single taxpayers and $225,000 for married couples filing joint returns.  The income limits for sales occurring on or after January 1, 2009 and on or before November 6, 2009, are $75,000 for single taxpayers and $150,000 for married taxpayers filing joint returns.

For more on these new credits, visit my source: http://www.federalhousingtaxcredit.com/home.html.