Mississippi Code Title 99. Criminal Procedure § 99-19-20

(1) Except as otherwise provided under Section 99-19-20.1,  1 when any court sentences a defendant to pay a fine, the court may order (a) that the fine be paid immediately, or (b) that the fine be paid in installments to the clerk of the court or to the judge, if there be no clerk, or (c) that payment of the fine be a condition of probation, or (d) that the defendant be required to work on public property for public benefit under the direction of the sheriff for a specific number of hours, or (e) any combination of the above.

(2) Except as otherwise provided under Section 99-19-20.1, the defendant may be imprisoned until the fine is paid if the defendant is financially able to pay a fine and the court so finds, subject to the limitations provided under this section. The defendant shall not be imprisoned if the defendant is financially unable to pay a fine and so states to the court in writing, under oath, after sentence is pronounced, and the court so finds, except if the defendant is financially unable to pay a fine and such defendant failed or refused to comply with a prior sentence as specified in subsection (1) of this section, the defendant may be imprisoned.

This subsection shall be limited as follows:

(3) Periods of confinement imposed for nonpayment of two (2) or more fines shall run consecutively unless specified by the court to run concurrently.