Iowa Administrative Code Title 701 — Department of Revenue
Iowa Admin. Code r. 701—303.12(422) — Deduction for home mortgage interest for taxpayers with mortgage interest credit
For tax years beginning on or after January 1, 1996, any taxpayer who had the mortgage interest credit on the federal return can claim a deduction on the Schedule A of the IA 1040 for all the mortgage interest paid in the tax year, including the mortgage interest that was not deducted on the federal return due to the mortgage interest credit.
Source: official text