The C.A. Lawton Co. v. Wisconsin Department of Revenue

The C.A. Lawton Co. incurred qualified research expenses in tax years 2002 through 2006 but reported '$0' in carried-over nonrefundable research credits on its originally filed returns for each of those years and never amended them. Beginning in 2011, once the company had Wisconsin taxable income against which to use research credits, it claimed carry-forward research credits attributable to the 2002–2006 expenses on its 2011 and 2012 returns. The Department of Revenue denied those carry-forward claims in a 2016 Notice of Amount Due, and Lawton petitioned for review.

A Credit Must First Be Timely Claimed Before It Can Be Carried Forward

Interpreting Wis. Stat. section 71.28(4) as a whole, the Commission held that paragraph (h)'s four-year filing deadline — tied to the general refund limitations period in section 71.75(2) — governs every claim under the research credit subsection, including the initial claim that must exist before any unused balance can become a fifteen-year carry-forward credit under paragraph (f). The Commission rejected Lawton's argument that a credit could be carried forward indefinitely so long as it was merely 'computed,' reasoning that this reading would allow a taxpayer to calculate a credit, place the calculation in a drawer for decades without notifying the Department, and only later spring it on the state — a result the four-year filing requirement was designed to prevent.

Partial Summary Judgment: Some Years Time-Barred, Others a Question of Fact

Applying that rule, the Commission found Lawton's carry-forward claims attributable to 2002 and 2003 research expenses were untimely as a matter of law, since even Lawton's own 2007 return (filed December 11, 2008) was filed after the four-year deadlines for those years had already passed, and granted summary judgment to the Department on those years. For 2004 through 2006, however, the Commission found a genuine factual dispute — turning on whether a 'Footnotes' page providing a year-by-year breakdown of the credit was actually filed along with Lawton's 2007 Schedule R, and whether that combination was sufficient to constitute a timely claim — and denied summary judgment as to those years, leaving the question for further proceedings.

Equitable Recoupment Did Not Apply

The Commission rejected Lawton's alternative argument that its time-barred credits should be revived under the equitable recoupment doctrine applied in Oshkosh Truck Corporation v. Wisconsin Department of Revenue. Unlike Oshkosh Truck, where the stale research credits and the Department's assessment both arose from the identical 1996 and 1997 tax years, Lawton's unclaimed 2002–2006 research expenses did not arise from the 'same transaction' as the 2011 and 2012 tax years actually being assessed, so the 'same year or income tax period' requirement for equitable recoupment was not satisfied.

Significance: Read together with Oshkosh Truck, this decision establishes the precise boundary of Wisconsin's research credit filing deadline — a credit must be timely claimed within four years of the return for the year the expense was incurred before it can generate a fifteen-year carry-forward, and equitable recoupment can rescue a stale claim only when it offsets an assessment for that very same tax year, not a later year in which the taxpayer first has income to use the credit against.