Subcontractor Default Insurance vs Performance Bonds: How General Contractors Choose

What is the difference between subcontractor default insurance and a performance bond?

A performance bond is a three-party guarantee and subcontractor default insurance is a two-party insurance policy that the general contractor buys and controls. That single structural difference drives almost everything else. Under a bond, the surety issues the guarantee to you on behalf of your subcontractor, and the subcontractor is ultimately responsible for repaying the surety. Under SDI, you are the insured, the subcontractor is the covered risk, and there is no right of recovery running back against the sub from your carrier in the same way. With a bond you file a claim and wait for the surety to investigate, choose a remedy, and act. With SDI you step in immediately, complete the work, and present your costs to your own carrier.

• Performance bond: three parties (owner or general contractor, subcontractor, surety), no deductible, subcontractor pays the premium, surety controls the remedy.
• SDI: two parties (general contractor and insurer), a real deductible and co-payment, general contractor pays the premium, general contractor controls the remedy.
• Bonds are typically written project by project or sub by sub; SDI is written as a program covering an enrolled portfolio of subcontracts.

What does subcontractor default insurance actually cost?

SDI premium generally runs in the range of 0.5 to 1.5 percent of enrolled subcontract values, with the rate depending on your prequalification process, your loss history, and the mix of trades you enroll. That is comparable to, and sometimes below, the 0.5 to 1.0 percent a subcontractor typically builds into its price for a performance bond, which you pay indirectly in every bonded bid. The real cost difference is the retention. SDI carries a per-loss deductible that commonly falls between 250,000 and 1,000,000 dollars, plus a co-payment percentage on losses above the deductible, often 10 to 20 percent, and an aggregate limit for the policy period. A bond has no deductible. So SDI trades a lower gross cost for meaningful first-dollar exposure, which is why it fits contractors with the balance sheet to absorb a default and the volume to spread the premium.

• Typical SDI rate: roughly 0.5 to 1.5 percent of enrolled subcontract value.
• Typical SDI deductible: 250,000 to 1,000,000 dollars per loss, with a co-payment above it.
• Bonded subcontractor pricing usually embeds 0.5 to 1.0 percent for the bond premium.
• Most SDI programs require minimum annual enrolled subcontract volume, frequently 50,000,000 dollars or more.

Which one gives you more control when a subcontractor fails?

SDI gives you control and a bond gives you a process. When a bonded subcontractor defaults, the surety has options written into the bond form. It can finance the existing sub, tender a replacement, complete the work itself, or pay damages. It investigates first, which is reasonable from its side and painful from yours, because the surety is also checking whether you properly declared default, gave notice, and kept the sub in breach. Investigations of 60 to 120 days are common on contested claims. With SDI, there is no third party deciding the remedy. You declare the default under your own policy, mobilize a replacement immediately, document costs, and submit them. The work keeps moving, which on a project with liquidated damages of 5,000 to 25,000 dollars per day is frequently worth more than the premium difference.

What does SDI cover that a performance bond does not?

SDI is typically broader on the categories of loss it will reimburse, which is one of the strongest arguments for it. A well negotiated policy reaches beyond direct completion cost into the consequential damage that actually hurts a general contractor. Bonds are generally limited to the cost of completing the defaulted subcontract up to the bond penal sum, and sureties resist paying for schedule impact.

• Direct cost to complete the defaulted scope, including the premium paid to a replacement subcontractor.
• Correction of defective work already installed by the defaulted subcontractor.
• Acceleration and overtime costs incurred to protect the schedule.
• Extended general conditions and legal and expert costs tied to the default.
• Liquidated damages assessed by the owner, when the policy is negotiated to include them.

When is a performance bond still the right answer?

A bond is still the right answer more often than SDI marketing suggests. If the owner or the lender requires bonded subs, the question is settled. If your annual subcontract volume is modest, you will not meet SDI program minimums, and even if you could, a single default inside your deductible would wipe out several years of premium savings. Bonds also prequalify for you. A surety that issues a bond has underwritten the subcontractor's financial statements, backlog, and bonding capacity, which is free due diligence on a sub you may not know well. SDI shifts all of that prequalification back onto you, and carriers will audit whether you actually did it. Many contractors run both, using SDI for enrolled trades they know and bonds for unfamiliar subs or high-risk scopes.

What will an SDI underwriter want to see before quoting?

Underwriters buy your prequalification discipline, not your optimism. Expect a detailed review before a quote is issued, and expect the policy to carry conditions you must keep meeting all year.

• A written subcontractor prequalification process with financial statement review, reference checks, and capacity limits.
• Three to five years of subcontractor default loss history, including near misses you resolved without a claim.
• Your standard subcontract form, especially default, notice, cure, and backcharge language.
• Single subcontract limits and single subcontractor aggregate limits you agree to observe.
• Evidence that project managers document performance issues in writing as they happen.

Ready to evaluate your subcontractor risk transfer strategy?

If you are weighing SDI against a bonding program, or you want a second look at the default and notice language in your subcontract form, Grandbay Financial Services works with general contractors on exactly this decision. Book a working session at calendly.com/grandbayfinancial.