701—301.3(422) Form for filing.
	301.3(1) Use of and completeness of prescribed forms. Returns shall, in all cases, be made by residents and nonresidents on forms supplied by the department of revenue. Taxpayers not supplied with the proper forms shall make application for the forms to the department, in ample time to have their returns made, verified and filed on or before the due date. Each taxpayer shall carefully prepare a return so as to fully and clearly set forth the data required. For lack of a prescribed form, a statement made by a taxpayer disclosing gross income and the deductions from gross income may be accepted as a tentative return, and if verified and filed within the prescribed time, will relieve the taxpayer from liability to penalties, provided that without unnecessary delay a tentative return is replaced by a return made on the proper form. Each question shall be answered and each direction complied with in the same manner as if the forms and instructions were embodied in these regulations. Individual resident taxpayers shall enter the name of the school district of residence on the return. If the school district is not supplied, the return shall be deemed incomplete.
A return not signed by the taxpayer or the taxpayer’s agent or guardian, shall not be deemed completely executed and filed as required by law.
Failure to receive the proper form does not relieve the taxpayer from the obligation of making any return required by statute.
	301.3(2) Optional method of filing. The front and back page of the Iowa individual income tax return, if properly completed, may be filed as an optional return, if a complete facsimile or photocopy of the federal return and supporting schedules are attached.
	301.3(3) Copy of federal income tax return to be filed by nonresident. A nonresident taxpayer must file a copy of their federal income tax return for the current tax year with their Iowa income tax return. The copy shall include full and complete copies of all farm, business, capital gains and other schedules that were filed with the federal return.
	301.3(4) Amended returns. If it becomes known to the taxpayer that the amount of income reported to be federal net income or Iowa taxable income was erroneously stated on the Iowa return, or changed by an Internal Revenue Service audit, or otherwise, the taxpayer shall file an amended Iowa return along with supporting schedules, to include the amended federal return if applicable. A copy of the federal revenue agent’s report and notification of final federal adjustments provided by the taxpayer will be acceptable in lieu of an amended return. The assessment or refund of tax shall be dependent on the statute of limitations as set forth in 701—subrule 300.2(1) and rule 701—305.3(422).
	301.3(5) Voter’s registration forms in income tax booklets and income tax return instructions. Effective for tax years beginning on or after January 1, 1989, income tax return booklets and income tax return instructions shall include two voter registration forms. The voter registration forms to be inserted into the income tax return instruction forms and booklets are to be designed by the voter registration commission. However, effective July 1, 1992, the voter registration forms are to be inserted in the income tax return booklets and income tax return instructions only for odd-numbered tax years. Thus, the voter registration forms will not be included in the income tax return booklets for the 1992 tax year but are to be included in the booklets for 1993.
Effective July 1, 2004, the requirement that voter registration forms be included in the income tax booklets and income tax instructions has been eliminated. The official website of the department includes the official electronic state of Iowa voter registration form and a link to the Iowa secretary of state’s official website.
This rule is intended to implement Iowa Code sections 422.13, 422.21 and 422.22 and Iowa Code sections 48A.24 and 421.17 as amended by 2004 Iowa Acts, Senate File 2296.
[Editorial change: IAC Supplement 11/2/22; Editorial change: IAC Supplement 10/18/23]