Iowa inventionINDEX August 2026: 1.18% (B grade)
The inventionINDEX measures innovation output by comparing GDP growth with patent production growth.
Anything over C grade is positive sentiment; anything under C is negative outlook/sentiment. Using that sentiment, it is possible to observe trends over time, and also compare states/countries. In doing so, we can predict which states have the best chance to recover economically from the pandemic (or any other economic incident that may occur).
Historical Iowa inventionINDEX Scores
The Iowa inventionINDEX score for the past 12 months is shown in the table below.
| Month | inventionINDEX SCORE |
|---|---|
| August 2026 | 1.18% |
| July 2026 | 1.07% |
| June 2026 | 1.58% |
| May 2026 | 1.28% |
| April 2026 | 1.33% |
| March 2026 | 1.72% |
| February 2026 | 1.26% |
| January 2026 | 1.87% |
| December 2025 | 1.94% |
| November 2025 | 1.61% |
| October 2025 | 1.54% |
| September 2025 | 1.48% |
| August 2025 | 1.15% |
Iowa’s inventionINDEX score for August 2026 registered at 1.18% with a B rating, marking a modest rebound from July 2026’s 1.07% (C+) while reflecting a broader cooling period compared to the heightened innovation levels observed earlier in the year. In June 2026, the index stood at 1.58% with an A+ rating, showcasing substantial month-over-month volatility. When evaluated against the historic high points of the 60-month dataset—such as December 2025 (1.94%, A+) and April 2025 (1.96%, A+)—the recent late-2026 figures indicate a stabilization into a mid-tier band rather than peak R&D growth. However, current scores remain comfortably superior to historical troughs, such as the 0.88% score and D+ rating recorded in July 2022.
A broader evaluation of the 60-month historical trajectory highlights significant multi-year shifts in Iowa’s innovation climate. The state experienced a prolonged expansionary phase throughout 2025, maintaining an uninterrupted series of A+ ratings from September through December 2025, where scores consistently ranged between 1.48% and 1.94%. This represents a stark contrast to earlier consolidation periods, such as late 2024, when scores dipped to 0.99% (C-) in October 2024, or early 2023, when March registered 0.98% (C-). The historical progression demonstrates that while performance regularly cycles between structural expansions and pullbacks, the multi-year baseline has generally elevated, preventing a return to the sub-1.00% metrics seen in previous years.
Achieving higher grades, such as the A and A+ ratings seen during peak periods, generates substantial economic and structural benefits for the state. Elevated inventionINDEX scores signal robust research and development activity, indicating higher commercialization rates, strong intellectual property generation, and expanded investment from private enterprises taking advantage of innovation incentives. High scores foster an environment that attracts top-tier scientific talent, encourages corporate venture capital deployment, and accelerates technology transfer from academic institutions to active market sectors such as advanced manufacturing, biotechnology, and agricultural technology.
Conversely, prolonged drops into lower tier grades, such as C or D ratings, introduce serious economic headwinds and strategic challenges. Sub-1.20% scores often coincide with reduced corporate R&D expenditures, delayed product development timelines, and cautious capital allocation during broader macroeconomic contractions. Persistent low ratings risk eroding the state’s competitive positioning, potentially leading to venture capital reallocations toward more dynamic research hubs and an outbound migration of technical talent. Sustaining policies that promote research incentives and foster private-public innovation initiatives remains critical to preventing extended downturns and maintaining momentum toward top-tier performance.
Discussion:
In August, the Iowa inventionINDEX scored a positive sentiment which was lower than the previous year’s average and underperformed the downward trend for the year. This is in contrast to the prior 12 months, which experienced a considerable upward trend.
As the economy continues to stabilize in the post-pandemic era, it remains uncertain whether any backlog of applications still exists or if the department has returned to normal processing timelines. The inventionINDEX could also be affected by lingering consequences from the pandemic, such as company closures, reduced workforces, and limited R&D capabilities, which may still be impacting current operations.
Learn More:
Are you thinking of patenting any of your bright ideas? Did you know your research work could be eligible for the R&D Tax Credit and you can receive up to 14% back on your expenses? To find out more, please check out our free online eligibility test.
Swanson Reed’s Iowa office provides R&D tax credit consulting and advisory services to Des Moines, Cedar Rapids, Davenport, Sioux City, Iowa City, Waterloo, West Des Moines, Ames, Council Bluffs and Dubuque
Feel free to book a quick teleconference with one of R&D tax specialists if you would like to learn more about R&D tax credit opportunities.
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