Decedent died 11/22/20. Fiscal year runs to 10/31/21.  The investments were sold 8/13/21.  The 1041 is due 2/15/22. 

I don't have much experience with 1041s and can't get my head around the timing of all this.  I can't prepare the 1041 until I have 1099s, which won't come out until after my 2/15/22 deadline, right?  And this will be a first and final 1041 producing K-1s to the beneficiaries.  With the estate's fiscal year ending 10/31/21, the tax passed out on the K-1 should be included on the beneficiaries' 1040 due April 2022. 

Is it just a matter of requesting an extension, waiting for the 1099s, and then rushing to file as soon as I get them so as to get K-1s to the beneficiaries in time to do their own taxes?  There are 12 beneficiaries and there will be taxable income passed out to all of them on K-1s. Just want to make sure I'm approaching this in the right way and not causing headaches for people unnecessarily.  Thanks!