What software development activity qualifies for the R&D tax credit?

Development of a new or improved business component, performed in a process of experimentation aimed at eliminating technical uncertainty, qualifies under §41(d)(1). Routine bug fixes, post-launch maintenance, and pure data engineering typically do not. The work must be technological in nature, not financial, legal, or managerial.

What is the four-part test under IRC §41(d)(1)?

The activity must (1) develop a new or improved business component, (2) be technological in nature, (3) involve uncertainty as to capability, method, or design, and (4) include a process of experimentation evaluating alternatives. All four must be satisfied — failing any one removes the activity from the credit.

How much does the R&D credit reduce my tax bill?

The Regular §41 credit is 20% of qualified research expenses above a fixed base. The Alternative Simplified Credit (ASC) is 14% of QRE above 50% of the prior three-year average QRE. Most startups elect ASC because it removes the need for a 1984–1988 base calculation.

Can I use the R&D credit to offset payroll taxes?

Yes — under §41(h), qualified small businesses (gross receipts under $5M with no publicly traded stock) can apply up to $500K of the credit against the employer's 6.2% Social Security tax. The election is on Form 6765 and typically works best for pre-profit startups.

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R&D tax credit (§41)

R&D tax credit (§41): startup and SaaS eligibility

The §41 R&D tax credit for small SaaS and engineering teams — the four-part test, qualified research expenses, Form 6765, and the payroll-offset election under §41(h).

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IRC § 41 Form 6765

Who can claim this

Who qualifies for the r&d tax credit (§41)

Small SaaS or dev-shop with rising qualified research wages and supplies — eligible for the §41 credit.

Project ledger redacted — three or more qualifying activities with rising wage share above the §41(a) base.
Engineering payroll traces to projects that meet the four-part §41(d)(1) test (new or improved business component, technological in nature, elimination of uncertainty, process of experimentation).
Form 6765 shows a regular §41 credit election (not the Alternative Simplified Credit simplification that would understate).

How to claim — step-by-step

How to claim the r&d tax credit (§41)on this year's return

Project ledger redacted — three or more qualifying activities with rising wage share above the §41(a) base.
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Engineering payroll traces to projects that meet the four-part §41(d)(1) test (new or improved business component, technological in nature, elimination of uncertainty, process of experimentation).
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Form 6765 shows a regular §41 credit election (not the Alternative Simplified Credit simplification that would understate).
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What catches practitioners off guard

The risk to review

Why AI + human review matters here

The four-part test is contested on exam — keep contemporaneous project time-tracking and a written narrative for each qualifying activity.

Taxerity.AI surfaces this and similar items for your firm's reviewer. The AI does the research; you keep the final judgment on whether the workload and evidence pattern warrant the deduction on a specific client's return.

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Common questions about the r&d tax credit (§41)

Quick answers to the questions solo CPAs and enrolled agents ask us most often about this deduction.

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