Retention Bonds

What is a retention bond?

Cash retentions are one of the biggest drains on contractor cash flow. On most construction contracts, the principal withholds a percentage of each progress payment (typically 5% of the contract sum) as security against defective work. This money sits with the principal until the defects liability period expires — which can be 12 months or more after practical completion.

A retention bond replaces this cash withholding with an equivalent surety guarantee. The principal holds the bond instead of your cash, and you receive full progress payments from day one. The security is identical — the principal can call on the bond under the same conditions they would have drawn on the cash retention.

The cash flow impact

For a mid-market contractor running five concurrent projects averaging $15M each, cash retentions at 5% represent $3.75M in tied-up working capital. That's money you've earned through completed work but can't access until the defects period expires on each project.

Replacing those retentions with surety bonds releases that $3.75M for equipment, wages, materials and tendering for new work. The annual premium on those bonds is typically 1–2% of face value — a fraction of the cost of having that capital locked away.

Swapping existing retentions

You don't have to wait for new projects to benefit from retention bonds. Existing cash retentions on current projects can often be swapped for retention bonds mid-project, with the principal releasing the withheld cash once the bond is in place.

This is one of the first things BCS does when establishing a new surety facility. The immediate cash flow benefit from releasing existing retentions often covers several years of surety premiums on its own.

How retention bonds work alongside other bond types

Retention bonds sit within your overall surety facility alongside performance bonds, maintenance bonds and other bond types. The aggregate facility limit covers all outstanding bonds simultaneously, and capacity freed up as individual bonds are released becomes available for new bonds.

A well-managed surety facility with active bond release follow-up ensures your bonding capacity continuously recycles as projects progress through their lifecycle.

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