Iowa property tax deadlines

6 sourced dates. 99 of 99 Iowa counties have at least one.

Iowa sets its dates in state law, and you pay the county treasurer in full or in two halves. The first half is due September 1 and the second March 1, and each gets a month before 1.5% monthly interest starts. To protest your assessment, file with the local board of review between April 2 and April 30.

Next state-wide date

Mar 1, 2027 in 129 days

Bills due Second half due iowataxandtags.orgOct 21

Next dates in every Iowa county

County	Bills due	Last day without penalty	Appeal by	Exemption filing
Adair County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Adams County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Allamakee County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Appanoose County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Audubon County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Benton County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Black Hawk County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Boone County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Bremer County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Buchanan County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Buena Vista County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Butler County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Calhoun County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Carroll County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Cass County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Cedar County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Cerro Gordo County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Cherokee County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Chickasaw County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Clarke County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Clay County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Clayton County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Clinton County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Crawford County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Dallas County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Davis County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Decatur County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Delaware County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Des Moines County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Dickinson County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Dubuque County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Emmet County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Fayette County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Floyd County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Franklin County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Fremont County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Greene County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Grundy County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Guthrie County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Hamilton County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Hancock County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Hardin County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Harrison County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Henry County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Howard County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Humboldt County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Ida County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Iowa County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Jackson County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Jasper County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Jefferson County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Johnson County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Jones County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Keokuk County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Kossuth County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Lee County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Linn County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Louisa County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Lucas County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Lyon County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Madison County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Mahaska County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Marion County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Marshall County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Mills County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Mitchell County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Monona County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Monroe County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Montgomery County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Muscatine County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
O'Brien County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Osceola County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Page County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Palo Alto County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Plymouth County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Pocahontas County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Polk County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Pottawattamie County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Poweshiek County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Ringgold County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Sac County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Scott County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Shelby County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Sioux County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Story County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Tama County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Taylor County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Union County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Van Buren County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Wapello County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Warren County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Washington County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Wayne County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Webster County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Winnebago County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Winneshiek County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Woodbury County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Worth County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21
Wright County, IA	Mar 1, 2027iowataxandtags.orgOct 21	Mar 31, 2027legis.iowa.govOct 21	Apr 30, 2027legis.iowa.govOct 21	Jul 1, 2027legis.iowa.govOct 21

County

Bills due

Last day without penalty

Appeal by

Exemption filing

Date and source	Deadline	Applies to
March 1 every yeariowataxandtags.orgOct 21	Bills due Second half due	All 99 Iowa counties
March 31 every yearlegis.iowa.govOct 21	Last day without penalty Pay the second half by this day to avoid interest	All 99 Iowa counties
April 2 to April 30 every yearlegis.iowa.govOct 21	Appeal deadline Protest your assessment	All 99 Iowa counties
July 1 every yearlegis.iowa.govOct 21	Exemption filing Claim the homestead credit with the assessor	All 99 Iowa counties
September 1 every yeariowataxandtags.orgOct 21	Bills due First half due	All 99 Iowa counties
September 30 every yearlegis.iowa.govOct 21	Last day without penalty Pay the first half by this day to avoid interest	All 99 Iowa counties

Iowa property tax deadlines

Next state-wide date

Next dates in every Iowa county

Every state-wide date