DCAA Compliance· · 7 min read
SBIR and STTR Explained: How the Government Funds Small Business R&D, and Where It Leads
A plain-English, source-backed guide to SBIR and STTR, the federal R&D funding programs for small businesses: the three phases, who is eligible, SBIR vs STTR, and how Phase III leads into federal contracts and DCAA compliance.
The federal government runs two programs that put early research money into small companies. Here is how SBIR and STTR work, who they are for, and the point where funding turns into a federal contract and a whole new set of rules.
Program status (2026): SBIR and STTR are authorized through September 30, 2031. Authority lapsed on September 30, 2025 and was restored when the Small Business Innovation and Economic Security Act (S. 3971) was signed into law on April 13, 2026. Before you plan around any deadline, check the live solicitation on the agency's own site. Sources: sbir.gov and congress.gov.
If you run a small technology company, sooner or later someone tells you to "go get government funding." It sounds simple. It is not, and the first thing worth clearing up is what that phrase actually means.
Government Funding for Small Businesses: Grants Versus the Reality
Start with what the government does not do. As the U.S. Small Business Administration states on its own site: "The federal government does not provide grants to start a business." The SBA's grants are limited to a few specific purposes: scientific research and development, community organizations that promote entrepreneurship, and exporting through state entities. For most companies, the SBA's direct help is not a grant at all. It is financing: loans such as the 7(a), 504, and microloan programs, equity through licensed Small Business Investment Companies (SBICs), and surety bonds. You can read the SBA's own summary on its grants and loans pages.
So when a small technology company looks for "government funding" in the sense of money to develop an idea, the concrete and repeatable federal path is usually SBIR and STTR. The broader universe of federal grants lives at grants.gov, but most of it is aimed at states, universities, and nonprofits rather than for-profit product companies. That is why the rest of this guide focuses on SBIR and STTR.
What SBIR and STTR Are
SBIR stands for Small Business Innovation Research. STTR stands for Small Business Technology Transfer. Together they are nicknamed "America's Seed Fund." Their purpose is to fund early-stage research and development at small businesses that shows commercial potential, and to bring small firms into the federal research effort.
A few features matter up front, all from sbir.gov:
- The funding is equity-free. The agency that funds your work does not take an ownership stake in your company.
- The programs do not fund unsolicited proposals. Agencies publish specific R&D topics in their solicitations, and you must respond to one of those topics.
- The SBA does not make the awards. It directs the participating agencies, helps them run the programs, and reports to Congress. The awards come from the agencies themselves.
The Three Phases, From Feasibility to Federal Contract
Both programs run through the same three-phase structure, described in the SBIR/STTR FAQ. Open each stage below for the funding range and what happens, through the point where the rulebook changes.
Those statutory guidelines are baselines, not caps. As of April 2026, sbir.gov states that agencies may issue a Phase I award up to $323,090 and a Phase II award up to $2,153,927 without seeking SBA approval, and that any award above those levels requires a waiver. Individual agencies set their own amounts within the rules, so the number in a specific solicitation is the one that counts.
SBIR Versus STTR: The Key Difference
The programs look similar, but one requirement separates them. STTR requires the small business to formally partner with a research institution. On an STTR award, the small business must perform at least 40% of the research and development, and the single partnering research institution must perform at least 30%. No more than 30% of the total work may be subcontracted to a third party, and the two partners must put an intellectual property agreement in place before the award is made. Those rules are in the SBIR/STTR FAQ.
A research institution here means a nonprofit college or university, a domestic nonprofit research organization, or a federally funded research and development center (FFRDC), located in the United States, per the sbir.gov program tutorials.
SBIR has no required research-institution partner. It does have its own work-share rule: in SBIR Phase I the proposing firm must perform at least two-thirds of the effort, and in Phase II at least one-half.
The programs also differ in reach: eleven federal agencies run SBIR, while only six run STTR (USDA, DoD, DOE, HHS, NASA, and NSF). Agencies with extramural research budgets above set thresholds reserve a percentage of that budget for these programs: 3.2% for SBIR and 0.45% for STTR.
Side by side:
| Requirement | SBIR | STTR |
|---|---|---|
| Research institution partner | Not required | Required |
| Company's minimum share — Phase I | ≥66% | ≥40% |
| Company's minimum share — Phase II | ≥50% | ≥40% |
| Research institution's minimum share | — (no partner in SBIR) | ≥30%, every phase |
| Cap on subcontracting to a third party | Not set by the base program | ≤30% of total work |
| Federal agencies that run the program | 11 | 6: USDA, DoD, DOE, HHS, NASA, NSF |
| Share of extramural R&D budget set aside | 3.2% | 0.45% |
In STTR the 40%/30% split applies the same in every phase; in SBIR the company's minimum share changes by phase (Phase I vs. Phase II), which is why it's broken into two rows above.
The current participating agencies are listed at sbir.gov.
Who Is Eligible
According to the program's own eligibility guidance, the applicant must be a for-profit company located in the United States, with fewer than 500 employees, that is owned and controlled by U.S. citizens or permanent residents. For STTR, the partnering research institution must be U.S.-located and fit the nonprofit, university, or FFRDC definition above.
Eligibility details, and any exceptions, live in each agency's solicitation. The programs are competitive and topic-specific, so the practical test is always whether your work fits an open topic and meets the terms in that solicitation. To receive any federal award, you also register your company in SAM.gov, the government's system for entities doing business with it.
Where It Leads: Phase III and Federal Contracts
Here is the throughline that matters for a company thinking a few steps ahead. Phase III is where a funded innovation moves toward the market, and one route is selling to the government itself. Agencies are authorized to issue Phase III awards, including sole-source contracts, to the original awardee for work that derives from, extends, or completes the prior Phase I or Phase II effort, per sbir.gov. That is a significant advantage: the agency can buy your technology without a fresh open competition.
The moment that funding becomes a federal contract, and especially a cost-reimbursable one, you enter a different world with a different rulebook. Your accounting system now has to meet federal criteria, and before award the contracting officer may ask the Defense Contract Audit Agency (DCAA) to review whether your system is adequate. That review is built around Standard Form 1408, and it is the front door to the compliance topics we cover in depth elsewhere:
- Which DCAA audit will you actually face?
- Why you may need to be DCAA compliant before you win a contract
- What is SF-1408, and what does it check?
In short, SBIR and STTR can fund the science, and Phase III can turn it into federal business. The handoff from one world to the other is where accounting stops being a back-office chore and starts being a condition of getting paid.
How WiseCost Fits
To be clear about our lane: WiseCost does not help you win an SBIR or STTR award. Where WiseCost helps is the step after, when your funding turns into federal contract work. WiseCost adds the DCAA-compliant layer on top of QuickBooks Online, so your accounting system can produce the separation of direct and indirect costs, the compliant timekeeping and labor distribution, the indirect rate calculation, and the contract-level cost visibility that a pre-award review looks for. You keep QuickBooks. The compliance layer sits on top.
Next Step
If Phase III federal work is on your horizon, the useful thing to know is where your accounting system stands today. See for yourself with the DCAA self-assessment, or book a demo and we will walk through it with you.
A Note on Program Status
Authority for SBIR and STTR lapsed on September 30, 2025, which paused new solicitations and awards across the agencies. The Small Business Innovation and Economic Security Act (S. 3971) was signed into law on April 13, 2026, restoring authority and extending both programs through September 30, 2031. Awards made before the lapse continued to be administered. Because agencies resumed on different timelines, the reliable move is always to check the specific agency's SBIR/STTR page and its current solicitation. Sources: sbir.gov and congress.gov.
Official Sources
- SBIR and STTR programs, phases, eligibility, and participating agencies: sbir.gov
- SBA on grants and loans for small businesses: sba.gov
- Federal grant listings: grants.gov
- Entity registration for federal awards: SAM.gov
- Reauthorization legislation (S. 3971): congress.gov