Estimate R&D tax credit eligibility and amounts from qualified research expenses using regular and simplified calculation methods.
The federal R&D credit is not a flat percentage of what you spend. Both methods this calculator uses - regular and alternative simplified - compare current qualified research expenses (QREs) against a historical base, so a company that spends steadily on research can receive little or nothing, while a company whose spending jumps can get a meaningful credit. Enter wages, supplies, and contract research costs, plus prior-year figures, and the tool computes the credit under each method and which one wins. What most people get wrong: 'research' here means statutory qualified research - technological experimentation - not your general engineering budget.
A concrete input and expected output from the current implementation.
Input
Prior-year qualified research expenses: 2022 $120,000, 2023 $150,000, 2024 $180,000. Current year (2025) QREs: $275,000. Method: simplified.
Expected output
Estimated simplified-method credit: $26,000. Current-year QREs ($275,000) exceed 50% of the three-year average of prior QREs ($75,000) by $200,000; 13% of that excess is $26,000.
The simplified method credits 13% (the rate for tax years beginning after December 31, 2021) of current-year QREs above half of the prior three years' average. Average prior QREs = (120,000 + 150,000 + 180,000) / 3 = 150,000; half is 75,000; the excess of 275,000 over 75,000 is 200,000; 13% of 200,000 = 26,000.
Under the regular method, the credit is 19% of current-year QREs above a base amount. The base is your fixed-base percentage times the average gross receipts of the four preceding tax years. The fixed-base percentage is your 1984-1988 QRE-to-gross-receipts ratio, capped at 16%; companies without that history use 3%. This method needs a gross receipts history, so it suits established companies.
The alternative simplified method credits 13% of current-year QREs that exceed 50% of the average QREs of the three preceding tax years. If current QREs are at or below that half-average, the credit is zero. A company with no QREs in any of the three prior years still qualifies, at 13% of 50% of current QREs, or 6.5% of spending. Only QRE history is needed, which favors younger companies.
For tax years beginning after December 31, 2021, the credit rates are 19% under the regular method and 13% under the simplified method. The 20% and 14% figures applied to earlier years, and many articles still quote them. Estimate carefully: if your credit year begins before 2022, use the higher rates.
Both methods compare current spending with a historical base, and the credit rewards growth. Under the simplified method, if current QREs do not exceed 50% of the average of the prior three years, the credit is exactly zero. If you believe spending did grow, check that each year's QREs - not raw budget - were entered.
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