R&D Tax Credit Estimator

The federal Research & Development (R&D) tax credit under IRC Section 41 rewards businesses for qualified research activities — software development, product engineering, process improvement, and more. This estimator calculates your potential credit using both the Regular Credit method and the simpler Alternative Simplified Credit (ASC) method so you can choose the higher one.

Current Year Qualified Research Expenses (QREs)

Only 65% of contract research qualifies

Prior 3-Year Average QREs (for Regular Method)

Leave blank if no prior R&D
Total QREs (current year)
Best Credit Method
Estimated R&D Credit
After Deduction Reduction (§280C)
Regular Credit (20%)
Fixed-base %
Base Amount
Excess QREs
Credit (20%)
Alt. Simplified Credit (14%)
Prior 3-yr avg QREs
Base (50% of avg)
Excess QREs
Credit (14%)
Startups (<5 yrs, <$5M gross receipts) may apply up to $250,000 of this credit against payroll taxes instead of income tax. Consult a CPA to document your qualified activities — the IRS requires contemporaneous records of the 4-part test (technological in nature, discovery test, elimination of uncertainty, experimentation process).