Comment by sahn44

I did the same with my taxes that I needed to file in Oct after getting extension in April. Added the return and all supporting docs to a Claude project. Found 2 big issues and 4 smaller ones, all legit. Basis and depreciation calc for two rental properties were way off. Also IRA basis stuff was wrong those two were heavily in my favor to correct. Felt a little bad peppering the accountant with issues, but he was apologetic and corrected. This is a no brainer use case for me going forward.