If you are going to use online tax service, like TurboTax or TaxAct or others

[question everything]

7. Some of us enjoy it. And then depends what form you submit to your professional

The ubiquitous shoe box full of receipts?

Like progree, above, I have used CPAs on occasions and always found a mistake.

About 10 years ago we had a complicated one so did go to a CPA. We kept arguing and I kept calling the IRS - in the days that they would answer - and finally convinced him that I was right. By then we came to his office to collect the return and he had to redo it again. And he said: look at all the dead trees that are lying here on the floor...

Some 30 years ago when I had more money than time I did use a CPA each year. No software then, no online, at least not for regular people. But I would not bring a shoe box full of receipts but a 1040 already filled. He laughed, asked me whether he should just submit it as is.

But he was really good. When both of us were victims of "Reduction in Force" he suggested to leave our 401Ks with the employer who was, otherwise, on sound ground and they did very well.