On March 11, 2015, the IRS reported that it has refunds totaling $1 Billion due to taxpayers who did not file a 2011 federal income tax return. California leads the nation with the most refunds due, with over 103,000 taxpayers failing to file their 2011 return.

In order to claim the refund, taxpayers must file a 2011 return no later than April 15, 2015. After that date, the refunds become the property of the US Treasury. There is no penalty for filing a late return that is due a refund. Taxpayers should be aware that refunds may be held until 2012 and 2013 returns are also filed. Additionally, a refund will be applied to any amounts owed to the IRS or the taxpayer’s state tax authority, and may be used to offset unpaid child support or student loans.