I do my taxes every year with a spreadsheet, copying last year's page to the next. I was badly, badly burned by tax software and will never make that mistake again.
After all, income tax is very simple:
- Q: How much money did you make last year?
- A: Send it in.
Download the tax document PDFs and follow the directions. Fill out the form electronically,
print it, and
mail it in
certified mail – return receipt requested. When the little green card comes back, staple it to a printed copy of your return and keep it
f-o-r-e-v-e-r.
If the statute of limitations is, say, five years, then tax authorities will wait four years, eleven months and thirty days to challenge you. Likely as not they'll claim that you never filed anything, knowing that you probably can't obtain financial records anymore and hoping that you didn't keep a copy of the return and
proof of
mailing. (If you filed electronically, it's your word against theirs, and in that contest guess who wins?)
"No, sir. Here's a scanned copy of the certified-mail receipt showing the official dated postmark and the address to which it was sent, and your stamp acknowledging receipt. You can examine the original if you like. Have a good day, sir, and pick a better victim next time." 
