Had a client drop off their tax info:

$365k 401k withdrawal ($73k Federal w/h and $1300 in CA FTB w/h)

W-2 for $122k (went exempt for the year)

Anyone ever have anything like this happen to them? Once a year client, so I had no idea this was coming.

Obvious answer is that they need to pay. File extension and/or any other thoughts?