Fill out the Homestead Tax Credit, 54-028 form. Return the form to your city or county assessor.Eligible claimants who are 65 years of age or older on or before January 1 of the assessment year are now eligible for a homestead tax exemption. Pre-populated Homestead Tax Credit Application Forms are available to be printed from within your parcel on our website. To claim the exemption, the homeowner must make a one-time filing with the county assessor where the property is located. Address: City: State: ZIP: Phone: Answer these questions to determine eligibility: 1. Are you currently an Iowa resident? City of Los Angeles - Business Tax Application. Because of this, your property tax bill would be lower. Pre-populated Homestead Tax Credit Application Forms are available to be printed from within your parcel on our website.