Modifies provisions relating to the "Missouri Working Family Tax Credit Act" and makes the tax credit refundable

HB 2616 modifies Missouri's Working Family Tax Credit Act to make the tax credit refundable starting in 2027. This means eligible taxpayers who owe less state income tax than their credit amount will receive the difference as a refund, rather than losing it. The credit equals 10% of the federal Earned Income Tax Credit (EITC) for 2023, with a potential increase to 20% if Missouri's state revenue grows by at least $150 million over previous fiscal years. The bill also requires the state to proactively identify and notify eligible taxpayers who didn't apply for the credit, using data from federal and state tax records.