President Obama signed the Worker, Homeownership and Business Tax Act of 2009. The provision of most interest is the extension of the $8,000 home buyer tax credit until April 30, 2010 for purchases under contract and June 30, 2010 for sale closing. The benefits have expanded to include a $6,500 credit for all home buyers and a higher income phase-out amount. The bill includes some new restrictions, mostly aimed at preventing fraud. The bill also includes an expansion of the carryback of operating losses for 2008 or 2009 (removing the size restriction). The bill increases the failure-to-file penalties for S corporations and partnerships and delays the effective date for the worldwide interest allocation benefit.