The American Recovery and Reinvestment Act of 2009 authorizes a tax credit of up to $8,000 for qualified first-time home buyers purchasing a principal residence (new home or resale) on or after January 1, 2009 and before December 1, 2009. The tax credit is equal to 10% of the home’s purchase price, up to a maximum of $8,000.
It is unbelievable the number of people who don’t know about this wonderful opportunity.

In 2008, nearly one out of every two homebuyers were buying for the first time, the first-time homebuyer credit is making it easier for first-time home buyers to enter the housing market this year.
Yes, you need to be a first-time home buyer, but wait, what does it really mean? Well, by law, you qualify as a first-time homebuyer if you have not owned a principal residence during the three-year period prior to the purchase. The purchase date is the date when closing occurs and the title to the property transfers to the homeowner.
Remember that any home that you will used as a principal residence will qualify for the credit, for example, single-family detached homes, condominiums, town-homes, mobile homes even houseboats.
Also, consider that owning a vacation home or rental property not used, as a principal residence does not disqualify a buyer as a first-time homebuyer.
Income limits for claiming the tax credit.
For single taxpayers is $75,000; for married taxpayers, filing a joint return, the limit is $150,000.
Something else, if you are a buyer with a modified adjusted gross income (MAGI) of more than $75,000 for single taxpayers and $150,000 for married taxpayers filing a joint return, the tax credit amount is reduced. The range is equal to $20,000, meaning the tax credit amount is reduced to zero for taxpayers with MAGI of more than $95,000 (single) or $170,000 (married) and is reduced proportionally for taxpayers with MAGIs between these amounts.
Basically, if you are single, you get the full credit if you earn $75,000 or less, and no tax credit if you earn $95,000 or more. For those married and filing jointly, the amounts are $150,000 and $170,000, respectively.
For more information consult a tax specialist before proceeding on your eligibility and proper deductions on your returns.
Reference: www.ustreas.gov U.S. Department of the TREASURY