The R&D Tax Credit: Is Your Small Business Missing It?

Ask most small business owners if they qualify for the federal Research & Development tax credit and the answer is usually "no, that's for labs and pharma companies." In reality, the credit rewards a much wider range of everyday problem-solving — building software, improving a manufacturing process, developing a new product formula — and recent legislation has made it more valuable to claim. Here is what it actually covers and how to tell if you are leaving money on the table.

This is general information, not individual tax advice — the right treatment depends on your specific situation.

What the R&D Tax Credit Actually Rewards

Unlike a deduction, which merely reduces taxable income, the R&D credit under Internal Revenue Code Section 41 reduces your tax bill dollar for dollar. It exists to reward businesses of any size and industry for investing in developing or improving products, processes, formulas, or software — not just formal laboratory research. A business does not need a research department to qualify; it needs activity that meets a specific technical test.

Do You Qualify? The Four-Part Test

The IRS applies a four-part test to each project or "business component" you want to claim. The work must be undertaken for a permitted purpose — improving function, performance, reliability, or quality; it must be technological in nature, relying on principles of engineering, computer science, or the physical or biological sciences; it must aim to eliminate technical uncertainty about capability, method, or design; and it must involve a genuine process of experimentation, such as testing alternatives or iterating on a design. Routine data collection, market research, and minor cosmetic changes do not qualify — but a surprising amount of everyday product and software development does.

What Counts as a Qualified Research Expense

Qualified research expenses generally fall into three buckets: wages paid to employees who perform, supervise, or directly support the qualifying work; supplies consumed in the research process; and a portion of amounts paid to outside contractors who perform qualified research on your behalf, which is generally counted at 65% of the amount paid. For many small businesses, employee wages tied to product development or engineering work make up the bulk of the credit.

The Payroll Tax Offset: Cash Back Even Without Profit

One of the most useful — and underused — features of this credit is the payroll tax offset. A qualified small business that has little or no income tax liability, such as an early-stage startup, can instead elect to apply up to $500,000 of its R&D credit each year against the employer share of Social Security and Medicare payroll taxes, subject to a $1.25 million cap over five years. The 2025 One Big Beautiful Bill Act expanded who can use this election by raising the gross-receipts eligibility threshold for a "qualified small business" well beyond the old $5 million ceiling, and it also restored immediate expensing of domestic research costs — both changes make the credit meaningfully more valuable for growing companies than it was just a few years ago.

How to Claim It

The credit is calculated and claimed on Form 6765, filed with your business tax return. Because the underlying calculation methods, documentation requirements, and interaction with other provisions can get technical quickly, this is not a form most owners should attempt without professional support — an incorrectly substantiated claim is a common audit trigger.

Common Misconceptions

Three myths keep businesses from claiming a credit they have actually earned: that you need a dedicated R&D department, that only new-to-the-world inventions count, and that you need to already be profitable to benefit. None of that is true. If your team is writing custom software, engineering a new process, or iterating on a product design and hitting real technical uncertainty along the way, it is worth having the work evaluated.

How VarStan Helps

Identifying and documenting qualified research activity takes a mix of tax knowledge and an understanding of what your team is actually building. We help clients determine whether their work realistically qualifies, organize the wage and expense documentation the IRS expects, and file the claim correctly — whether that means offsetting income tax or, for an early-stage business, putting real cash back against payroll tax. If you are not sure whether your work counts, that conversation costs nothing to start.