Performance bond vs banker's guarantee for Singapore contractors
What a performance bond secures
A performance bond is a promise by a third party to pay the employer up to a fixed sum if the contractor fails to perform. The contractor arranges it and pays for it. The employer holds it. The sum is a percentage of the contract value set in the tender conditions.
The Building and Construction Authority's Public Sector Standard Conditions of Contract (PSSCOC) is the standard form for public projects. Clause 4.5 of the Seventh Edition 2014 required the contractor to provide security as a cash deposit or as a guarantee from a bank or insurance company. In SH Design & Build v Jurong Port [2026] SGHC 159, the bond was S$12,569,800, which the court noted was 10% of the original contract sum. The current editions are the Eighth Edition 2020 for Construction Works and the Seventh Edition 2020 for Design and Build, with PSSCOC-lite forms issued in March 2025.
The bond is not insurance for the contractor. If the issuer pays the employer, it recovers the sum from the contractor under a counter-indemnity. The bond moves the employer's credit risk to the issuer. It does not move the contractor's performance risk anywhere.
A separate instrument with a similar name is the Ministry of Manpower security bond of S$5,000 per Work Permit holder. It secures the employer's obligations to the worker and the Government. It has nothing to do with construction performance.
Performance bond vs insurance bond in Singapore: who issues it
| Feature | Banker's guarantee | Insurer surety bond |
|---|---|---|
| Issuer | Bank | Licensed general insurer |
| Security taken | Cash, fixed deposit or a charge over the banking facility | Counter-indemnity from the company and often the directors; collateral by negotiation |
| Effect on bank lines | Uses the contractor's credit facility | Leaves bank lines free for working capital |
| Pricing basis | Commission on the bond amount, plus the cost of locked cash | Premium on the bond amount, rated on financials and track record |
| Underwriting | Credit assessment by the relationship bank | Financial statements, project list, cash flow, management |
| Wording | Bank's standard form or the employer's form | Insurer's form or the employer's form |
| Acceptability | Universal | Accepted under PSSCOC and most private forms; some employers name banks only |
The economic difference is the collateral. A bank treats the bond as a loan it may have to fund, so it wants cash or deposits against it. An insurer underwrites the contractor's financial strength. For a contractor running 4 or 5 projects at once, the cash a bank locks up across all bonds can exceed its working capital.
The insurer route is not open to every contractor. Insurers decline weak accounts, short track records and companies in dispute. A broker tests appetite with 2 or 3 sureties before the tender closes.
On-demand or conditional: what the wording decides
The label on the document does not decide how it works. The Court of Appeal said this in AXA Insurance v Chiu Teng Construction [2021] SGCA 62. The legal character of a bond depends on its terms.
An on-demand bond pays when the employer makes a written demand in the form the bond requires. The issuer does not ask whether the contractor is in breach. The contractor's remedy is to argue later, or to seek an injunction before payment.
A conditional bond, also called an indemnity bond, pays only when the employer proves breach and loss. In AXA v Chiu Teng, the Court of Appeal held that no prior judgment or admission is needed. The beneficiary proves breach and loss to the court hearing the claim against the issuer, and the issuer may contest it. Issuers who want a stricter trigger must write it into the bond.
Banks prefer on-demand wording because they do not want to investigate construction disputes. Insurers issue both. Employers prefer on-demand. Contractors prefer conditional. The tender conditions usually settle the question, so the time to negotiate is before pricing the bid.
Can an employer call an on-demand bond at will?
Not without limit. Singapore courts will restrain a call that is fraudulent or unconscionable. The contractor must show a strong case on one of those grounds to obtain an injunction. Commercial pressure is not enough.
SH Design & Build v Jurong Port [2026] SGHC 159 is a recent example. The employer called an insurer-issued bond for liquidated damages. The contract was on PSSCOC Seventh Edition 2014. Clause 35 required the Superintending Officer to decide on the liquidated damages within 30 days. The court found the decision was either not made or made late. The demand was therefore invalid, and the injunction against the call stood pending arbitration.
The lesson for contractors is procedural. The bond and the contract work together. If the employer must certify a sum or follow a timetable before calling, a failure in that step can defeat the call. The contractor needs to know the call mechanism in both documents, not only the bond amount.
The lesson for employers is the mirror image. Follow the contract's certification steps before issuing a demand, or the call may be enjoined while the bond runs out.
Worked example: S$2 million contract, 10% security
The figures below are an example. Fees and collateral are set by the bank or insurer case by case.
A contractor wins a S$2 million public-sector contract on PSSCOC terms. The tender requires security of 10% of the contract sum, so S$200,000. The contract runs 18 months with a 12-month defects liability period. The security must stay in place for up to 30 months.
Option 1, cash deposit. S$200,000 leaves the contractor's account for 30 months. No fee is paid, but the cash cannot fund materials or wages.
Option 2, banker's guarantee. The bank issues a S$200,000 guarantee against the contractor's facility. If the bank asks for a fixed deposit against it, the same cash is locked, and a commission is paid on top. If the bank lends against the facility unsecured, working capital is preserved but the facility limit is used.
Option 3, insurer surety bond. The insurer issues a S$200,000 bond on the employer's form against a counter-indemnity. A premium is paid for the bond period. The bank facility stays free for working capital.
A contractor with 5 such projects has S$1 million of security outstanding, locked under option 1 and available under option 3.
What happens at completion and after
The bond does not fall away at practical completion unless its wording says so. Most run until the end of the defects liability period or the maintenance certificate. Some reduce by half at practical completion. The contractor should diarise the expiry mechanism.
Three points need attention at the end.
- Return of the original. The employer should return the bond document when it expires. An outstanding original can cause the issuer to keep the facility blocked.
- Extension demands. Employers sometimes demand an extension shortly before expiry, under threat of a call. The contractor should check whether the contract permits this.
- Release of collateral. The bank or insurer releases collateral and cancels the counter-indemnity only after confirmation that the bond has expired or been returned.
A broker tracks bond expiries across projects, arranges extensions where the contract requires them and places new bonds against the same facility. The contractors' all risks page covers the project insurances that run alongside the bond.
Frequently asked questions
Can an employer call an on-demand bond without proving default?
Yes, in principle. An on-demand bond pays on a compliant written demand without proof of breach. The contractor can seek an injunction only on grounds of fraud or unconscionability. A demand that fails the contract's certification steps can also be invalid, as in SH Design & Build v Jurong Port [2026] SGHC 159.
Why do insurers charge less collateral than banks?
A bank treats a guarantee as a contingent loan and secures it like one, often with cash or a fixed deposit. An insurer underwrites the contractor's financial strength and track record and relies on a counter-indemnity. Collateral is still possible for weaker risks, but it is negotiated rather than automatic.
Does a performance bond count as insurance for the contractor?
No. The bond protects the employer. If the issuer pays, it recovers the amount from the contractor under the counter-indemnity. The contractor's own protection on a project comes from contractors' all risks, work injury compensation and public liability policies.
What happens to the bond at practical completion?
Only what the wording says. Many bonds run to the end of the defects liability period; some reduce by half at practical completion. The contractor should obtain the original back at expiry so the issuer can release collateral and cancel the counter-indemnity.
Sources
- [SH Design & Build Pte Ltd v Jurong Port Pte Ltd [2026] SGHC 159](https://www.elitigation.sg/gd/s/2026_SGHC_159)
- [AXA Insurance Pte Ltd v Chiu Teng Construction Co Pte Ltd [2021] SGCA 62](https://www.elitigation.sg/gd/s/2021_SGCA_62)
- BCA: Public Sector Standard Conditions of Contract
- MOM: Security bond for Work Permit holders
General information only, not advice on any particular policy. Cover depends on the policy wording and the insurer's terms.