Iowa Code § 70A.5: Fees payable in advance.

All fees, unless otherwise specifically provided, are payable in advance, if demanded, except in the following cases:

1. When the fees grow out of a criminal prosecution.

2. When the fees are payable by the state or county.

3. When the orders, judgments, or decrees of a court are to be entered, or performed in divorce-related matters including child support, temporary custody, restraining orders, and writs of habeas corpus.