It appears that for the income you're wondering about, it ends up including in untaxed income the amount on Line 4a minus the amount on Line 4b of your 1040. I'm not sure, but I think a Roth distribution of contributions would show up in that way.
That's where they showed up when I withdrew Roth IRA contributions, and did a Roth conversion in the same year. Turbotax added all the distributions into 4a, and 4b had only the taxable portion.
Since I have a High School Freshman, it looks like next year will be my first FAFSA year. Then it's almost every year for the next 15 because of the age of our kids.
This is my 4th year FIRED, and we've been doing Roth conversions for two reasons: 1) So that we can vary the withdrawal amount year to year and 2) because low rates and low age meant the withdrawal rate using SEPP wasn't attractive.
It looks like if I want to stay FIRED are switching to SEPP for withdrawals. Do you think petitioning the financial aid officer to remove the Roth conversion from income and refigure federal financial aid would work if our only remaining "income" is the untaxed Roth distributions?
The 4a/4b stuff makes sense. I just didn't want to go looking at Form 8606 to trace where those show up. Thanks for confirming.
I'm pretty sure FAFSA still uses "prior prior" tax returns. So if you have a freshman now (who's just finishing freshman year), then they'd start sophomore in 25, junior in 26, senior in 27, and college in 28. FAFSA now opens in October of their senior year, so if that timeline is right you could complete the FAFSA on 10/1/2027 using your 2026 federal income tax return (aka "prior prior" year to 2028).
To the question in your last paragraph: Yes, I do. The GEN-99-10 letter is obscure and old, but it worked like a charm every time when I used it, and that was with two different kids at two different schools over multiple academic years. You submit the original FAFSA with the information from your tax return which includes the Roth conversions. You then contact the school's FA office and say you did Roth conversions. They'll ask for some proof. You provide the proof. They refigure your aid as though the Roth conversion didn't happen. Done.
Specifically, I don't think they care in the slightest what the rest of your tax return looks like - they just subtract out the Roth conversions and refigure aid. In my daughter's case, I think they had a computer program to refigure it because it took literally five seconds for the FA at her school to refigure the aid.
They also probably don't care in the slightest whether it looks like you can support yourself on your income level, how many other kids you have, etc. (Unless those are relevant to other reasons to appeal the aid calculation.)