Introduced by Rep. Ken Calvert (R-CA), the Homebuyer Tax Credit Act of 2009 would replace the current tax credit for first time home buyers with a one-time credit for 10% of the purchase price of a principal residence, up to $15,000. However, if the buyers fails to occupy the home or sells the home within 24 months after the purchase, the buyer is required repay the credit to the government.