Mo. Rev. Stat. § 506.366
Current with changes from the 2023 Legislative Session
An offender seeking to bring a civil action or to appeal a judgment in a civil action without the prepayment of fees or security due to indigency shall submit a request to the court to proceed without the prepayment of fees. The request shall include a certified copy of the offender's correctional center account statement, which shall be provided by the department of corrections for the six-month period immediately preceding the filing of the petition or notice of appeal.
§ 506.366, RSMo