In most of Europe individuals at least don't need any of that. I'm in France and it's just a connection to a government run website to enter a few figures, takes less than an hour most of it is already pre-entered (salary etc), the main thing to add manually is charitable donations.
If you're running a business then yes an accountant can be good (or be required depending on the legal form of the business) but not for individuals.
There are a few people who have a complex situation who need an accountant. Most do not, but since they have never looked at what is really involved they don't realize what is going on.
https://www.irs.gov/businesses/small-businesses-self-employe...
Otherwise normally costs around $800 to do, because I have a small business too.
Are you? Does it cost you extra (time or money) to be?