I can confirm this from experience. The instant your situation becomes more complicated than "I work one full time job and have no investments to my name whatsoever" you are in for a brutal time without an accountant by your side.

On the other hand, if you do have an accountant by your side, you potentially expose yourself to some of the most powerful labor arbitrage on the planet as a tech worker. Making $100k remotely from the US might sound like a bad deal until you live in a country where the average wage is $20,000. Like all things US tax wise, you are disproportionately rewarded for being clever and reading a lot.