• Missouri Working Family Credit (Section 143.177)
• The Missouri Working Family Credit will begin with the 2023 tax year.
• A taxpayer can receive a credit of 10 percent of their federal earned income credit. The credit cannot be refunded or carried forward, but will reduce any tax liability after all credits have been applied.
• To qualify for the credit, a taxpayer must be a full time Missouri resident with a filing status of Single, Head of Household, Qualifying Widow(er), or Married Filing Combined.
• Qualifying children must have valid social security numbers
• A copy of your federal return must be attached to your Missouri individual income tax return to receive the credit.

Believe you just have to print the form to a pdf and attach it to the MO return.