Iowa Code § 547.3: Fee for recording.

The county recorder shall collect fees in the amount specified in section 331.604 for each verified statement recorded under this chapter. The recorder may return the original instrument to the sender or dispose of the instrument if the sender does not wish to have the instrument returned. An instrument filed in the recorder’s office before July 1, 1990, may be returned to the sender or disposed of if the sender does not wish to have the instrument returned and if there is an official copy of the instrument in the recorder’s office.