Do subcontractors need their own performance and payment bonds?

In most cases, the prime contractor holds the performance and payment bonds required by the owner. However, prime contractors frequently require subcontractors to provide their own bonds — particularly when the sub's scope exceeds $150,000 or represents a large percentage of the prime's contract value. Your subcontract will specify whether you need to bond. Some owners, particularly school districts and municipal agencies, are increasingly requiring sub-bonds directly in their specifications.

What is the SBA Surety Bond Guarantee Program and how does it help small subs?

The SBA's Surety Bond Guarantee (SBG) Program helps small businesses that cannot obtain surety bonds through regular commercial channels. The SBA guarantees a portion of the bond (typically 70–90%) which reduces the surety's risk and allows approval for firms with limited bonding history, lower net worth, or poor credit. The QuickApp program covers bonds up to $500,000 (and in some cases up to $1,000,000) with a streamlined application. The SBA charges a premium of 0.729% of the contract price for its guarantee portion (not the full bond cost).

What is the Miller Act and which contracts does it apply to?

The Miller Act (40 U.S.C. §§ 3131–3134) requires prime contractors on federal construction contracts exceeding $150,000 to obtain both a performance bond and a payment bond for 100% of the contract value. The performance bond protects the government if the contractor fails to complete the project. The payment bond protects subcontractors and suppliers — it is the legal basis for your right to make a claim on the bond if the prime does not pay you. State equivalents ('Little Miller Acts') impose similar requirements at the state level, though thresholds vary.

How much does a performance bond cost for a $500,000 subcontract?

Performance bond premiums typically range from 1% to 3% of the contract value, with most small contractor bonds falling in the 1%–1.7% range for projects under $1M. For a $500,000 subcontract, expect to pay $5,000–$8,500 in bond premium. Factors that affect pricing: your firm's net worth (higher net worth = lower rate), years in business, current backlog vs. bonding capacity, credit score, and project type. New firms or those with limited financial history may see rates of 2%–3.5%.

What general liability insurance limits do I need for public construction work?

Minimum requirements vary by agency, but the most common specification is: General Liability $1,000,000 per occurrence / $2,000,000 aggregate, Auto Liability $1,000,000 combined single limit, Workers Compensation per statutory limits, and Employer's Liability $500,000–$1,000,000. Many federal agencies and large owners require umbrella/excess coverage of $1M–$5M over the primary policies. Always request a copy of the insurance requirements from the solicitation or subcontract before your policy renewal date.

Can I get a bid bond without a full bonding relationship?

Yes — bid bonds are often available on a per-project basis even without an established bonding program, because the surety's exposure is limited to the difference between your bid and the next bidder's bid (not the full contract value). However, if you are not pre-qualified with a surety, getting a bid bond quickly (in 24–48 hours before bid closing) is difficult. The practical solution is to establish a bonding relationship and pre-qualify with a surety company before bid season begins, so bond issuance is fast when you need it.

Bonding and Insurance Requirements for Public-Works Subcontractors (2026)

Key Takeaways

•Three bond types protect different parties: bid bond (you'll sign if awarded), performance bond (you'll finish), payment bond (you'll pay your subs/suppliers).
•Miller Act requires 100% performance + payment bonds on federal contracts over $150,000 — this frequently flows to subs.
•Bond premiums for small contractors typically run 1%–1.7% of contract value for projects under $1M.
•SBA's QuickApp program can get you bonded on projects up to $500K when commercial sureties decline.
•Standard public works insurance: $1M/$2M GL, $1M auto, statutory workers comp — verify agency-specific requirements.

The Three Bond Types Explained

Bid Bond

Typically 5–10% of bid

A bid bond guarantees that if you are awarded the contract, you will actually execute it at your submitted bid price. If you win and then decline the contract (or are unable to perform), the surety pays the owner the difference between your bid and the next lowest bidder's bid, up to the face amount of the bid bond.

Who holds it: Submitted with your bid to the owner or prime contractor. Released after contract execution (if you win) or return of bid bonds to unsuccessful bidders.

Performance Bond

100% of contract value

A performance bond guarantees that the contract will be completed according to its terms. If you default — abandon the project, fail to meet specifications, or go out of business mid-project — the surety must either complete the project, hire another contractor to complete it, or pay the owner the cost to complete, up to the bond amount.

Who holds it: Owner (on prime contracts) or prime contractor (on subcontracts). Remains in force through final acceptance and any warranty period.

Payment Bond

100% of contract value

A payment bond guarantees that all subcontractors, laborers, and material suppliers will be paid. As a subcontractor, this is your legal backstop if a prime contractor fails to pay you — you can make a claim on the prime's payment bond. At the federal level, Miller Act payment bond claims have strict notice and filing deadlines.

Miller Act claim timeline: You must provide written notice to the prime within 90 days of last furnishing labor or materials. Suit must be filed within 1 year of last furnishing. State "Little Miller Acts" have different deadlines.

Federal Bond Thresholds (Miller Act and FAR Part 28)

Contract Value	Performance Bond	Payment Bond
Under $25,000	Not required	Not required
$25,000 – $150,000	Contracting officer discretion	Contracting officer discretion
Over $150,000	Required — 100% of contract	Required — 100% of contract

FAR 28.102-1 establishes the above thresholds. The contracting officer may require bonds below $150,000 if the project carries higher risk (remote location, specialized work, financially weak contractor). FAR 28.103 covers performance and payment bonds for non-construction contracts.

State Threshold Examples ("Little Miller Acts")

State	Bond Threshold	Notes
California	$25,000+	Public Contract Code § 20160; both bonds required
Texas	$100,000+	Tex. Gov't Code § 2253; both bonds required
New York	$250,000+	State Finance Law § 137; public school contracts: $100,000
Florida	$200,000+	Fla. Stat. § 255.05; performance bond only below $200K at CO discretion
Illinois	$50,000+	30 ILCS 550/1; both bonds required

SBA Surety Bond Guarantee Program

If you cannot qualify for bonds through standard commercial surety companies, the SBA Surety Bond Guarantee (SBG) Program can bridge the gap. The SBA guarantees 70%–90% of the surety's loss, enabling approved sureties to bond small contractors they would otherwise decline.

QuickApp Program

Streamlined application for bonds up to $500,000 (and in some cases up to $1,000,000). Available for contracts in construction, services, and supply. Application can often be completed in 1–2 business days through an SBA-approved surety agent. Best for established small firms with clean financials but limited bonding history.

Standard Program

For larger contracts requiring more underwriting. Requires submission of financial statements, work-in-progress schedule, personal financial statement of owners, and bank references. No upper contract limit, but the SBA reviews each bond request individually.

Prior Approval vs. Guarantee Basis

Prior approval: the surety submits the application to SBA before issuing the bond; SBA reviews and approves. Guarantee basis: the surety issues the bond without prior SBA approval and is eligible for the guarantee if a loss occurs (faster but requires the surety to meet specific criteria).

SBA Premium

The SBA charges a guarantee fee of approximately 0.729% of the contract price for its portion of the guarantee. You still pay the commercial surety's premium on top of this. Total effective premium with SBA involvement may be 1.5%–2.5% of contract value for small contractors.

Sample Bond Cost Scenario: $500,000 Project

Contract Value	$500,000
Performance Bond required (100%)	$500,000
Payment Bond required (100%)	$500,000
Typical annual premium — established contractor (1%–1.7%)	$5,000 – $8,500
Typical annual premium — newer firm via SBA (1.5%–2.5%)	$7,500 – $12,500
Bid bond (if separate from performance bond)	$200 – $600 flat

Premiums quoted above are illustrative. Actual rates depend on your firm's financial strength, experience, credit score, and the surety's current underwriting appetite. Build bond cost into your bid estimate — it is a direct project cost, not overhead.

Insurance Requirements for Public Construction

Beyond bonds, public construction contracts require several insurance policies. Minimum limits vary by agency, but these are the typical baselines you will encounter:

Commercial General Liability

Typically $1,000,000 per occurrence / $2,000,000 aggregate. The owner and prime contractor will usually be named as Additional Insureds. Projects involving underground work, blasting, or demolition may require higher limits or specific endorsements.

Auto

Commercial Auto Liability

$1,000,000 combined single limit covering owned, non-owned, and hired vehicles. Required if any company vehicles or employee personal vehicles are used to travel to the project site.

Workers Compensation

Statutory limits per state law — required in virtually every state for employers with one or more employees. Employer's Liability sublimit typically $500,000–$1,000,000 per accident. A waiver of subrogation in favor of the owner is commonly required.

UMB

Umbrella / Excess Liability

Many public agencies and large primes require $1M–$5M umbrella/excess over the GL and auto primary policies. This is increasingly standard on projects above $500,000. The umbrella follows form on the underlying policies and typically adds minimal cost relative to the coverage increase.

Related Tools

Bond Requirement Estimator

Enter project value and type to see which bonds are required and their estimated cost.

Labor Burden Calculator

Enter base wage and employer costs to calculate your true burdened hourly rate and annual cost.

Frequently Asked Questions

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