Quite a few cpas and other tax people who brew. It's going to depend on workload. There could be a brewday chance somewhere in Feburary, and then can let it sit through march when corps are due, if he has to work with those. If it's just 1040s there may be a little more leeway time and then he can let it ferment for a month and try to sneak in a racking (if necessary) or even as some people mention, let it just sit there for a few months and bottle post 4/20 (efile rejections). Not a CPA but work in the tax fields, I'm going to see about doing one right before the 1120s start going. Hopefully that wont' be a nightmare.