Department of Revenue details technical tax-administration changes: e-filing, reporting, and information sharing

During a webinar hosted by Iowa SourceLink, a Department of Revenue presenter summarized House File 976 and several other enacted provisions that revise tax-administration procedures, confidentiality rules, and filing requirements.

Tyler Ackerson said the department secured statutory authority to share confidential taxpayer information with law enforcement when there is an indication of willful failure to file or a criminal offense under Title 10 of the Iowa Code. The department may also share limited taxpayer information with the state treasurer to help identify apparent owners of unclaimed property. Ackerson said the legislature agreed to eliminate a previously required annual report on recurrent taxpayer noncompliance effective July 1, 2025.

House File 976 includes numerous technical clarifications. It moves late property tax credit claims from the Department of Revenue to county treasurers, clarifies a two-year statute of limitations for central-assessment appeals when appealed to the department director, clarifies the farm tenancy income exclusion holding-period language and what constitutes 10 years of material participation, and updates rules for pass-through entities and estimated notices of assessment. Several sales-tax clarifications were made, including clearer language about tax liability on building materials used in construction (described as non-substantive clarifications) and moving direct-pay permit holders from semi-monthly to monthly filing frequency (with the associated threshold increasing from $4,000 to $8,000). Ackerson said those changes were effective July 1, 2025.

Ackerson described a new statutory penalty for taxpayers who are subject to an electronic-filing requirement but submit sales tax or tobacco submissions on paper. For sales tax returns that are paper-filed when the taxpayer is subject to electronic filing, the department will treat the return as not filed, estimate the tax due, issue a bill, and add a 5% penalty plus other applicable penalties and interest. The department recognizes an exemption process: filers unable to file electronically may request permission from the department director to use an alternative method.

Motor-fuel reporting and rate-calculation authority were clarified to allow the department to recalculate rates in the case of reporting errors or late reports; penalties now attach for late (not just nonfiled) fuel reports. The statute was adjusted to align electric fuel reporting period end dates with true month ends and due dates. The law also allows purchasers of electric fuel to provide an exemption certificate when sales are for non-taxable purposes such as sales to a city or county.

Other enacted changes summarized on the webinar included: exclusion of lump-sum retirement distributions from Iowa taxation (retroactive to Jan. 1 of the applicable tax year); an increase to the estimated income-tax threshold for making estimated payments from $200 to $1,000 effective Jan. 1, 2026; and cleanup of the statutory list of tax-credit programs subject to periodic evaluation (removing expired or repealed credits). Ackerson recommended subscribing to the department’s GovDelivery service for updates and emphasized that additional details and forms will be provided as the department implements these provisions.

Ackerson also reviewed new reporting and registration requirements for certain data center and web-search-portal incentives: eligible entities must register with the department and file an annual report by Jan. 31 describing backup power fuel and electricity purchased and used; exemptions for electricity and backup fuel are limited to 10 years (urban) or 15 years (rural) for new or expanding qualifying data centers and web search portal businesses, with future revenues from expiration directed to the Energy Infrastructure Revolving Fund.

Why it matters: the package creates enforcement and administrative mechanisms that affect filing behavior, vendor reporting, confidentiality, and how local and state officials interact on tax and property matters. Businesses subject to electronic-filing requirements should confirm filing methods and exemptions to avoid the new penalties.

Ackerson closed by noting effective dates vary by provision and that taxpayers with specific concerns should contact the Department of Revenue.