Passed earlier this year as part of the economic stimulus package, the homeowner tax credit is good for up to $8,000, or 10% of the purchase price, and applies to people who have not owned a home in the previous three years. (There are some income restrictions.) The best part: Unlike a similar program from 2008, the credit does not have to be repaid.

The bad part: It ends on Dec. 1.

Because it usually takes around 90 days to close on a house after a contract is signed, buyers have very little time left to act. As of Thurs., Aug. 27, there were only 96 days left before the credit ends.