Iowa Code Title X. Financial Resources [Chs. 421-454] § 441.28. Assessment rolls--change--notice to taxpayer

The assessment shall be completed not later than April 1 each year. If the assessor makes any change in an assessment after it has been entered on the assessor's rolls, the assessor shall note on the roll, together with the original assessment, the new assessment and the reason for the change, together with the assessor's signature and the date of the change. Provided, however, in the event the assessor increases any assessment the assessor shall give notice of the increase in writing to the taxpayer by mail postmarked no later than April 1. No changes shall be made on the assessment rolls after April 1 except by written agreement of the taxpayer and assessor under section 441.30, by order of the board of review or of the property assessment appeal board, or by decree of court.