Advance Payment Bonds

What is an advance payment bond?

Large construction and infrastructure projects often require significant upfront investment before revenue flows. Mobilisation costs — equipment purchases, site establishment, temporary facilities, initial staffing — can run into millions of dollars. Principals may agree to advance these funds to the contractor, but they need security that the money will be applied to the project or returned if the contractor defaults.

An advance payment bond provides that security. It guarantees the principal's position for the full amount of the advance, reducing proportionally as the advance is recouped through deductions from progress payments.

How advance payment bonds work

The bond is issued for the full advance amount at project commencement. As the contractor completes work and submits progress claims, the principal deducts a portion of each payment to recover the advance. The bond's face value reduces in line with these deductions, and once the advance is fully recovered, the bond is released.

This reducing structure means the bond's impact on your surety facility capacity decreases over the project lifecycle. A $2M advance payment bond at project start might reduce to $500K within six months as progress payments recover the advance.

When advance payment bonds are needed

Advance payment bonds are most common on major infrastructure, mining development and civil construction projects where mobilisation costs are substantial. They arise when the contract includes provisions for advance payment — which is typical on larger government contracts, particularly those with remote site establishment requirements.

They're also common on international construction contracts, where mobilisation involves shipping equipment, establishing site camps and hiring local workforce before any revenue-generating work begins.

Why surety is better than a bank guarantee here

An advance payment bank guarantee locks up borrowing capacity for the full advance amount throughout the project, even as the advance is being progressively recovered. The bank typically won't reduce the guarantee limit until the advance is fully repaid.

A surety advance payment bond can be structured to reduce progressively as the advance is recovered, freeing up facility capacity throughout the project rather than only at the end.

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