Any income from 2018 will be used on the 2020-2021 financial aid forms.
If you will be certain to graduate in 2020 spring, then you are correct…your income from 2018 won’t be on any undergrad FAFSA you complete.
However, if you DO end up in undergrad 2020-2012…your 2018 income will be on the forms. But then again…it’s August so how much would you really be able to earn in 2018?.