Iowa Code § 29B.126
Fines imposed by a military court may be paid to the court or to an officer executing its process. The amount of the fine may be noted upon any state payroll or pay account and fines may be deducted from any pay or allowance due or thereafter to become due to the offender, until the fine is collected. Any sum so deducted shall be turned into the military court that imposed the fine. An officer collecting a fine or penalty imposed by a military court upon an officer or enlisted person shall pay the fine within thirty days to the judge advocate, who shall transmit the fine to the adjutant general. The adjutant general shall monthly, deposit all fines and penalties so received with the state treasurer, to be credited to the general fund of the state. Forfeited bonds shall be processed in the same manner.
Iowa Code § 29B.126