In Canada, when I file my taxes electronically, all my income (salary, interest, etc.) is pre-filled. I basically enter my deductions and hit "Submit".

That's just it, when I do my annual taxes (I should do that within the next month btw), all the data - from my employer's wages, all assets at banks including checking-, saving- and investment accounts, and things like mortgage interest (which is still partially deductible) etc are all filed.

The only thing I need to manually add is the EUR value of crypto assets on Jan 1st of the preceding year (good luck figuring that one out, the exchanges are kinda shit), and any charity donations I may have done. (my dad will pettily write down any speeding ticket cost as charity donations)

how could America claim to be exceptional if we just did things the same way as every other developed nation? /s

Exceptional != Best

The IRS can't even handle people e-filing.

But don't worry, the project started in 2009 to replace their COBOL mainframe systems is kinda, sorta on track for completion...in 2030.

I've filed for years using FreeFillableForms. It works. A bit more cumbersome than if some ex-Amazon people had implemented it, but not too bad.

The funny thing is that Intuit makes FreeFillableForms. It could have a much nicer interface, but they choose not to, so that you go and pay money to use Turbotax.