<p>The AOC should not affect the EFC at all. The credit reduces taxes, which would make more money available to the EFC formula (taxes are an allowance against income in the formula so lower taxes = higher income). So FAFSA asks how much the AOC credit was. The FAFSA question is used to wipe out any effect the AOC would otherwise have on the EFC (as the intention of getting the credit is not to increase your EFC). </p>
<p>So changing the AOC amount on the FAFSA question would increase the EFC. The question is, was the correction correct?</p>