If you're asking whether to claim the R&D tax credit, the honest answer is: not always. The credit is real money, but it only clears the cost of a provider fee, an amended filing, or added audit exposure if you can answer yes to three questions: do you have genuine qualifying research activity, are you in the receipts window where the payroll offset actually helps you, and does the credit value meaningfully beat what it costs to claim. Most SaaS founders assume the third question answers itself. It doesn't.
Here's the test.
What the R&D tax credit actually is, in one sentence
The R&D tax credit is a federal credit against income tax, or, for qualifying small businesses, against payroll tax, for wages and costs tied to developing new or improved products, processes, or software.
Historically it has been worth around $0.13 for every qualifying dollar spent, though your actual rate depends on the calculation method and whether you have R&D expense history to compare against. The rules around it changed twice in four years. From 2022 through 2024, the Tax Cuts and Jobs Act forced every business to capitalize and amortize domestic R&D costs over five years instead of deducting them immediately. The One Big Beautiful Bill Act, signed July 2025, reversed that: US-based R&D expenses are fully deductible again starting with the 2025 tax year, and companies with average gross receipts under $31 million can retroactively expense 2022 to 2024 costs if they elect to amend by July 6, 2026. Foreign R&D still amortizes over 15 years.
Question 1: Do you have research activity, not maintenance?
The IRS uses a four-part test: the work has to be technological in nature, aimed at improving functionality, performance, reliability, or quality, aimed at eliminating a genuine technical uncertainty, and carried out through a process of experimentation.
That definition is broader than a lab with scientists in it, but it doesn't cover everything your engineers did this quarter. Bug fixes, routine QA, gluing together a third-party API the way its docs describe, and UI polish don't qualify. Building a new recommendation engine when you weren't sure the approach would scale, or re-architecting your data pipeline to solve a problem nobody had solved before at your data volume, does.
Rule of thumb: if you can't name two or three specific technical uncertainties your team resolved this year, you probably don't have much to claim, and it's not worth a provider's time or yours.
Question 2: Are you in the window where the payroll offset helps?
The payroll tax credit only applies to businesses with under $5 million in gross annual receipts and no more than five years of gross receipts history. If you clear both, the credit offsets your employer-side Social Security and Medicare tax, which matters because most early-stage startups don't owe income tax yet.
- Payroll tax offset: gross receipts under $5M and five or fewer years of receipts history. Offsets employer FICA, meaning Social Security and Medicare tax.
- Income tax offset: already profitable and paying federal income tax. Offsets that income tax liability instead.
If you're past the $5 million mark or have more than five years of revenue history, the credit still exists, it just applies against income tax instead, which only helps once you owe some.
Question 3: Does the credit clear the cost of claiming it?
This is the question most founders skip. R&D tax credit studies typically cost 20 to 30 percent of the resulting credit as a contingency fee, or upwards of $100 to $250 an hour if you go the hourly route. A $20,000 credit at a 25 percent contingency fee nets you $15,000. A $4,000 credit at the same fee nets you $3,000, minus whatever hours it costs your team to assemble the documentation the provider needs anyway.
The break-even isn't really about the credit's dollar size in isolation, it's about the ratio of expected credit to expected fee. If a firm can't give you a ballpark credit estimate before you sign an engagement letter, that's a sign to ask more questions before you commit, not a reason to skip the credit entirely.
The 30-day move
Before you call a provider, spend an afternoon doing the cheap version of this test yourself: list your total qualifying engineer wages for the year, multiply by 6 percent as a conservative low-end estimate, and compare that number to what a study would cost you. If the math clears with room to spare, it's worth a real conversation with a CPA or a specialized firm. If it doesn't, wait until your qualifying payroll is bigger, or your revenue crosses into income-tax territory where the math changes.
Frequently asked questions
What counts as a qualifying research expense for a software startup?
Wages for employees doing the research, the cost of supplies used in it, contract research fees paid to third parties, and computer rental or cloud costs tied directly to the research activity.
Can a pre-revenue startup claim the R&D tax credit against payroll tax?
Yes, if gross annual receipts are under $5 million and the company has five or fewer years of gross receipts history. That's the qualified small business payroll offset path.
Did the 2025 tax law change how R&D expenses are treated?
Yes. The One Big Beautiful Bill Act restored full, immediate deduction of US-based R&D costs starting with the 2025 tax year, reversing the five-year amortization rule that applied from 2022 through 2024.
Can I claim the R&D tax credit for prior years?
Companies with average gross receipts under $31 million can elect to retroactively expense 2022 to 2024 R&D costs on amended returns, with an election deadline of July 6, 2026.
How much does an R&D tax credit study typically cost?
Most providers charge a contingency fee of 20 to 30 percent of the resulting credit, or hourly rates starting around $100 to $250 or more.
Do I need a specialized R&D tax credit firm, or can my regular accountant handle it?
Either can, in principle. Specialized firms tend to carry audit support built into the engagement and more experience defending the claim if the IRS asks questions, which is worth weighing against their fee.
If the math from question three clears and you want a second opinion on whether a provider's estimate is realistic before you sign anything, here's how we work with early-stage teams on decisions like this.
This isn't tax advice. Talk to a CPA before you file.