President Barack Obama signed a bill last week extending and expanding the federal tax credit. Now, buyers who have owned in their current homes for at least five years are eligible for tax credits of up to $6,500. First-time homebuyers — or anyone who hasn't owned a home in the last three years — would still get up to $8,000. To qualify, buyers have to sign a purchase agreement by April 30, 2010, and close by June 30.

The amount of income someone can earn and qualify for the full amount of the credit has been increased.

Single tax filers who earn up to $125,000 are eligible for the total credit amount. Those who earn more than this cap can receive a partial credit. However, single filers who earn $145,000 and above are ineligible

Joint filers who earn up to  $225,000 are eligible for the total credit amount. Those who earn more than this cap can receive a partial credit. However, joint filers who earn $245,000 and above are ineligible.

The National Association of Home Builders have released a very helpful FAQ website about the tax credit which can be found here