In February 2006, I responded by phone to a letter from the IRS asking about a "missing" Form 1041 Estate tax return for 2004 for my dad's estate. Even though I was not the executor of his estate (my mom was: she died in 2004) [which made the agent very reluctant to deal with me], I was able to get him to look up the 2002 tax return which, indeed, had the Final Return box checked. He stated that the account would be closed and I should receive no further communication from them on this.
Now I have received a set of Forms 1041-ES for my dad's estate for 2008!
How should I deal with this?