How does my income affect the ACA subsidy I get as a freelancer?

ACA premium tax credits are tied to your estimated modified adjusted gross income for the year relative to the federal poverty level. Because your self-employment income is something you can influence, freelancers have real control here: contributing to a Solo 401(k) or SEP-IRA, or deducting the self-employed health insurance premium itself, lowers your MAGI and can increase your subsidy. Underestimating income means repaying part of the credit at tax time; overestimating means a smaller advance credit you recover as a refund. Because your income is uncertain, update your marketplace estimate mid-year if it changes materially. The healthcare.gov calculator and your CPA can help you target a MAGI that balances subsidy size against retirement savings.