On August 5, 2011, the IRS published long-awaited guidance for executors of estates of people who died in 2010. Notice 2011-66 explains how these executors can opt out of the estate tax, and Revenue Procedure 2011-41 explains the special tax rules that apply to assets when executors opt out of the estate tax.
Tax Deadlines For 2010 Deaths? IRS Finally Issues Guidance – Forbes