Federal Housing Tax Credit

http://www.federalhousingtaxcredit.com/2009/glance.php

$8,000 Home Buyer Tax Credit at a Glance

• The tax credit is for first-time home buyers only.
• The tax credit does not have to be repaid.
• The tax credit is equal to 10 percent of the home’s purchase price up to a maximum of $8,000.
• The credit is available for homes purchased on or after January 1, 2009 and before December 1, 2009.
• Single taxpayers with incomes up to $75,000 and married couples with incomes up to $150,000 qualify for the full tax credit.

Here is just one paragraph from the official website:

I read that the tax credit is “refundable.” What does that mean?
The fact that the credit is refundable means that the home buyer credit can be claimed even if the taxpayer has little or no federal income tax liability to offset. Typically this involves the government sending the taxpayer a check for a portion or even all of the amount of the refundable tax credit.

For example, if a qualified home buyer expected, notwithstanding the tax credit, federal income tax liability of $5,000 and had tax withholding of $4,000 for the year, then without the tax credit the taxpayer would owe the IRS $1,000 on April 15th. Suppose now that the taxpayer qualified for the $8,000 home buyer tax credit. As a result, the taxpayer would receive a check for $7,000 ($8,000 minus the $1,000 owed).