Learn how subcontracting in government contracts works, the rules that apply, where to find opportunities, and how small businesses can win work with primes.
Subcontracting in government contracts is one of the fastest ways for a small business to start earning federal revenue without winning a prime award on its own. Instead of competing directly against established firms, you deliver part of the work for a prime contractor that already holds the contract.
This guide explains how government subcontracting works, the rules that protect and limit subcontractors, where to find opportunities, and how to position your business so primes want you on their team.
What Is Subcontracting in Government Contracts?
A subcontract is an agreement between a prime contractor and another business to perform part of a federal contract. The prime signs the contract with the agency and stays fully responsible for delivery. The subcontractor signs a separate agreement with the prime and works under its direction.
Because the subcontractor has no direct contract with the government, it has no privity of contract with the agency. Payment, scope, disputes, and performance feedback all run through the prime. Understanding this relationship shapes how you negotiate, price, and protect your business.
Prime Contractor vs Subcontractor
- Prime contractor: holds the contract with the agency, submits the proposal, manages the team, and answers to the contracting officer.
- Subcontractor: performs a defined portion of the work, answers to the prime, and is paid under the terms of the subcontract.
- Accountability: the agency holds the prime responsible for all results, so primes choose subcontractors they trust to perform.
Why Subcontracting Matters for Small Businesses
The federal government sets annual goals for the share of contract dollars that reach small businesses, and large primes help meet those goals through small business subcontracting. That creates steady demand for capable small firms.
- Lower barrier to entry: you can earn federal revenue before you have the past performance needed to win as a prime.
- Past performance: completed subcontracts can be cited in future proposals and strengthen your record.
- Access to larger programs: subcontracting lets you join contracts that would be too large to pursue alone.
- Learning the system: you see how primes manage compliance, invoicing, and reporting before carrying that responsibility yourself.
If you are still deciding where to start, our guide to the easiest government contract to win shows how subcontracting compares with other entry points.
How Small Business Subcontracting Plans Work
Under FAR Subpart 19.7, a large business that wins a contract above the subcontracting plan threshold must submit a plan with goals for subcontracting to small businesses. Since October 1, 2025, that threshold is $900,000, or $2 million for construction, following the FAR inflation adjustment of acquisition thresholds.
These plans set targets for small businesses, small disadvantaged businesses, women owned small businesses, HUBZone firms, veteran owned small businesses, and service disabled veteran owned small businesses. Primes report progress in the Electronic Subcontracting Reporting System (eSRS), and contracting officers review their results against the goals.
For you, these plans signal which primes are actively looking for small business partners and which socioeconomic certifications they need most.
Limitations on Subcontracting for Small Business Primes
The rules also work in the other direction. When a small business wins a set aside contract as the prime, it cannot pass most of the work to firms that are not similarly situated. Under 13 CFR 125.6, the prime may not pay more than these shares of the contract amount to such subcontractors:
- Services, except construction: 50 percent
- Supplies and products: 50 percent, with separate rules for nonmanufacturers
- General construction: 85 percent
- Specialty trade construction: 75 percent
Work performed by similarly situated subcontractors, meaning firms that share the same small business or socioeconomic status, generally counts toward the prime's own share. Violating these limits can lead to penalties and loss of eligibility, so both primes and subcontractors should track the split throughout performance.
Key Clauses Every Subcontractor Should Understand
Primes pass many FAR and agency clauses down to their subcontractors through flow down provisions. Read these carefully before you sign, because they define your obligations as much as the scope of work does.
- Scope and deliverables: the exact portion of the prime contract you are responsible for.
- Payment terms: invoicing schedule, payment timing, and what happens if the agency pays the prime late.
- Flow down clauses: cybersecurity, labor, ethics, and reporting requirements inherited from the prime contract, such as NIST SP 800-171 for controlled unclassified information.
- Termination rights: how the prime can end the subcontract if the agency terminates or reduces the prime contract.
- Intellectual property and data rights: who owns the work product you create.
- Non solicitation and exclusivity: limits on working directly with the agency or with competing primes.
Our article on common mistakes in government contracting covers how weak subcontractor oversight creates compliance risk for both sides.
How to Find Subcontracting Opportunities
- SBA SUBNet: browse subcontracting opportunities posted by primes, searchable by keyword and location.
- SBA prime contractor directory: the Directory of Federal Government Prime Contractors with Subcontracting Plans lists large firms required to subcontract with small businesses.
- Award data: search USAspending.gov to see which primes win work in your NAICS codes.
- Small Business Search: keep your SBA profile complete, because primes use the Small Business Search to find partners.
- Agency directories: GSA, DOT, USDA, and other agencies publish subcontracting directories and small business liaison contacts.
- APEX Accelerators: free counseling through APEX Accelerators can connect you with primes in your region.
- Industry days: attend agency and prime outreach events to meet Small Business Liaison Officers in person.
How to Become a Government Subcontractor in 6 Steps
1. Register in SAM.gov
Most primes expect subcontractors to hold a Unique Entity ID, and many require a full, active registration. Our SAM registration service can handle setup for you, and our guide on how to renew your SAM.gov registration keeps it active each year.
2. Define Your NAICS Codes and Certifications
Choose NAICS codes that match the work you perform, confirm your size status, and pursue certifications such as 8(a), WOSB, SDVOSB, or HUBZone if you qualify. Certifications can make you more valuable to primes working toward specific subcontracting goals.
3. Build a Capability Statement
A one page capability statement summarizes your core competencies, differentiators, past performance, NAICS codes, and identifiers such as your UEI and CAGE code. Primes often request it before any conversation about teaming.
4. Research and Target the Right Primes
Use award data to identify primes that win contracts in your niche, then study their subcontracting programs. Many large firms run supplier registration portals and assign small business liaison officers to manage outreach.
5. Engage Before the RFP
Primes assemble their teams early, often before a solicitation is released. Reach out during the sources sought and presolicitation stages so you can be named in the proposal. Our guide on how to bid on federal contracts and win explains how the capture timeline works.
6. Negotiate a Clear Subcontract and Deliver
Before signing, confirm scope, pricing, payment terms, and flow down clauses in writing. Once work starts, deliver on time, document results, and ask the prime for written feedback you can use as a past performance reference.
Growing Beyond Subcontracting
Subcontracting works best as a stepping stone. As your record grows, you can bid as a prime on smaller set aside opportunities, form joint ventures, or join the SBA Mentor Protégé Program to team with an experienced firm. When you are ready to lead a bid, our guide on how to write a government proposal walks through the full process, and our checklist on what to do after winning a government contract covers the first steps after award.
How ATZ Solution Helps You Win Subcontracting Work
Breaking into federal subcontracting takes the right registrations, a sharp capability statement, and steady access to opportunities. ATZ Solution LLC helps small businesses get there faster with:
- SAM.gov registration and renewal
- Capability statements built for primes and agencies
- Daily contract leads matched to your NAICS codes
- Access to subcontracting opportunities with established primes
- Bid and proposal writing support when you are ready to prime
Explore our federal contracting services or talk to our team about finding your first subcontract.
Frequently Asked Questions
Do subcontractors need to register in SAM.gov?
Subcontractors are not always required to complete a full SAM.gov registration, but primes reporting first tier subawards typically need your Unique Entity ID, and many primes require full registration. An active registration also makes you easier to vet.
Can a small business be a prime and a subcontractor at the same time?
Yes. Many firms prime smaller contracts while subcontracting on larger programs. Each contract carries its own rules, including limitations on subcontracting when you are the small business prime.
How do subcontractors get paid?
The prime pays the subcontractor under the terms of the subcontract, usually after invoicing on an agreed schedule. Because there is no direct contract with the agency, the payment terms you negotiate with the prime carry real weight.
What is the difference between a teaming agreement and a subcontract?
A teaming agreement is usually signed before proposal submission and outlines how firms will work together if they win. The subcontract is the binding agreement that governs the actual work after award.
Conclusion
Subcontracting in government contracts gives small businesses a practical path into federal work, a way to build past performance, and access to programs too large to pursue alone. Success depends on understanding the rules, targeting the right primes, and delivering consistently.
Start with a current SAM.gov registration and a clear capability statement, then build relationships with primes before the next solicitation drops. With the right support, your first subcontract can become the foundation for future prime awards.