A retention bond instead of retention

Retention is cash the employer holds back as security that the contractor will return and put things right. On a five million pound contract at three per cent that is a hundred and fifty thousand pounds sitting in the employer’s account, financed by the contractor, for up to two years.

A retention bond replaces that cash with a third-party promise. The contractor is paid in full and provides a bond for the equivalent amount, callable if it fails to make good.

Why contractors want one

Because retention is expensive money. It is the contractor’s margin, held for two years, financed at whatever the contractor borrows at. Across a portfolio it is a permanent working capital drain, and it is the single largest cash item most contractors would remove if they could.

A bond costs a fee, usually well under the cost of financing the equivalent cash. The arithmetic almost always favours the bond from the contractor’s side.

Why employers resist

Because cash in hand is better security than a promise. Deducting from a payment is instant and requires nobody’s agreement. Calling a bond requires establishing default, quantifying loss and persuading a surety.

There is also the practical point that retention gets used for small things constantly, and nobody calls a bond over a hundred pounds of remedial decorating. In practice a retention bond means the employer absorbs minor defects rather than deducting for them.

What to get right in the wording

• Expiry. It must run beyond the end of the rectification period, and beyond the realistic date rather than the contractual one.
• Reduction. Many reduce to half at practical completion, mirroring how retention itself works. If it does not, the employer holds more security than it would have done in cash.
• Trigger. Failure to make good defects, not merely the existence of defects, and usually after notice and a period to remedy.
• Surety. Rated, and acceptable to whoever is funding.

The version that catches people

A bond that expires on a fixed calendar date rather than by reference to making good. If the job runs late, the rectification period runs late with it, and the bond can expire before the obligation it secures.

The employer then has neither the cash nor the bond, which is the one outcome the arrangement was supposed to make impossible.

Where it fits

Retention bonds work well on contracts with a substantial, financially sound contractor and an employer with the appetite to administer a claim if it comes to that. On smaller work, with smaller sums and less legal support on both sides, cash retention remains simpler and is usually the right answer.