State R&D Tax Credits: A Founder's Guide to Stacking Federal and State Credits
Written by Aparna Devalla, CPA
Curated by Rubric Financial
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Why State Credits Matter
- The federal §41 R&D credit is widely known. Less known: 38 states have their own R&D credit programs.
- State credits can add 5-25% on top of your federal credit, depending on the state and the calculation method.
- Many states allow you to claim credits even if you have NO state income tax liability: they're refundable or transferable, generating cash for pre-revenue startups.
- Total federal + state R&D credit can recover 14-25% of your qualified research expenses (QREs), a material reduction in tax burden for engineering-heavy startups.
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