I have a client who did not qualify for EIC in 2019 because of a small income from an investment, but would have qualified for EIC if only based on his earned income. Can I use  just the earned income from 2019 to figure his EITC for 2020 or is he disqualified from using his earned income from 2019 because he had the investment income.  He qualifies for EIC in 2020 but 2019 would give him a larger credit.