For the vast majority of people, filing your taxes by hand is so easy, I'm not sure why more people do not do it. It also has the side benefit of making the government pay more to collect your taxes.

The IRS is also extremely wonderful to deal with, and is happy to answer your questions. I've had questions about procedures before (even made a mistake), and you just call (or they call you) and you fix them.

+1 to getting an accountant. TurboTax is great if you just have regular income and common deductions. I've never felt satisfied with TurboTax any time I've had a question about anything. Every year I pay an accountant twice what I paid TurboTax, I spend less time going through the process (I literally save a folder of documents and dump it on her desk) and get far more. At the beginning of the year she does my return, hands me a stack of 4 ready-to-mail envelopes with all my estimated tax vouchers filled out, reviews my withholdings mid-year with me, and works with my investment guy to make sure they're both giving me good recommendations. I have so much less mental load to deal with - I love it.

Can you pay an accountant to do your taxes instead? I do that in the UK and they cost less than the prices I see online for US tax software. I just give him a pile of pay slips and receipts and he does whatever he needs to do to fill things in.