Most federal research funding reimburses costs and nothing else. SBIR and STTR are unusual: on many awards the small business may add a fee — profit — on top of its costs, and unlike every other line in the budget, that money is not tied to a specific allowable expense. For a company with no other unrestricted cash, this is one of the genuinely useful features of the program, and a surprising number of applicants leave it off the form.
What the fee actually is
The fee is calculated as a percentage applied to your costs and added as its own line. Once the award is made and the work is performed, the fee is company money. It does not carry the allowability rules that govern the rest of the budget, it is not accounted for against receipts, and nobody asks you to justify how you used it in a technical report.
That makes it the natural home for costs a federal award will not otherwise pay. Patent filing and prosecution, which is generally not an allowable direct cost on a research award, is the classic example, and it matters because the same award creates obligations around who owns the IP from a federal grant that you will want counsel for. Other common uses are business development, travel to customer meetings that the project itself does not require, market research, or simply cash to carry payroll between awards.
Availability and size vary
Whether a fee is available, how it is capped, and what base it is applied to all depend on the agency and on the instrument. Grant-making agencies and contracting agencies treat it differently, some programs express it as a percentage of total costs and others exclude certain categories from the base, and the ceiling is a number the solicitation states rather than a constant across the program.
So do not carry a percentage over from a previous application or from something you read on a forum. Read the fee instructions in the solicitation you are answering, and if they are ambiguous, ask — this is an entirely normal question to raise when talking to a federal program manager before submission. A separate wrinkle: subcontractors and consultants generally do not carry your fee, and the treatment of fee within a subaward budget is its own question.
Two things to get right
First, claim it. Reviewers do not award extra points for modesty, and a budget without a fee line simply leaves the money in the agency's account. If the fee is allowed and you have a legitimate need for unrestricted cash, take it.
Second, understand that fee is revenue to your company and is treated as such on your books. That is a different question from how the cost-reimbursed portion of an award is handled, and it belongs in the same conversation as whether SBIR funds are taxable income. Founders comparing non-dilutive funding to a raise should also count it honestly: a modest fee line changes the arithmetic of grants versus investors less than people hope, but it is real, unrestricted, and costs no equity. Getting the line wrong, in either direction, is one more of the budget mistakes that sink applications.
This is general information, not accounting or tax advice — confirm the treatment of fee with your own CPA.
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