Iowa Code § 425.9 — Credits in excess of tax —appeals —refunds

1. If the amount of credit apportioned to any homestead under the provisions of this subchapter in any year shall exceed the total tax, exclusive of any special assessments levied against said homestead, then such excess shall be remitted by the county treasurer to the department of revenue to be redeposited in the homestead credit fund and be reallocated the following year by the department as provided in this subchapter . 2. If any claim for exemption or credit has been denied by the board of supervisors, and such action is subsequently reversed on appeal, the exemption or credit shall be allowed on the homestead involved in said appeal, and the director of revenue, the county auditor , and the county treasurer shall make such exemption or credit and change their books and records accordingly . 3. In the event the appealing taxpayer has paid one or both of the installments of the tax payable in the year or years in question on such homestead valuation, remittance shall be made to such taxpayer of the amount of such credit or exemption. 4. The amount of such credit shall be allocated and paid from the surplus redeposited in the homestead credit fund provided for in subsection 1 .