So here's the deal.
Since I've been working in America, ~4 years, I've had enough income to not get Trad. IRA deductions. So naturally I've been contributing the max without a deduction and immediately converting it into a Roth.
I figured since none of this needs to be taxed it's just that simple. Evidently I was wrong and I need to file form 8606 for my non-deductible Trad. IRA contribution even if I'm immediately converting it into a roth (which doesn't make any sense to me, but OK).
On top of this, apparently I have to do some tax stuff with the actual conversion from the trad IRA to the Roth even though that's not taxable either since it's after tax funds already!
Form 8606 (non-deductible contribution to trad IRA) is supposed to be filed each year I did a trad IRA non-deductible contribution. Since this isn't stopping the IRA from getting any taxes from you they don't actually care if you do it, it's for your own good. But if you submit the form late it costs $50. So I'm looking at ~$200.
My question to you all is: what benefit is there to actually doing this at all in my scenario (correcting the previous years)? It's clear that I owe the IRS no taxes and when I do form 1099-r for the backdoor (getting a distribution from my trad IRA and putting it into another retirement account i.e. Roth) I can still say I don't owe taxes there and it looks fine in TurboTax.