Contractors talk about retainage and bonding as two line items on the same job, which they are, and as two versions of the same protection, which they are not. They behave differently, they cost you different things, and on most jobs nothing in the law connects them at all.
The two mechanisms
Retainage is your money, held. The owner withholds a percentage of each progress payment that is otherwise properly due, and releases it at or after completion. It costs you working capital for the duration of the job. Nobody underwrites it and nobody has to agree to it beyond the contract you signed.
A bond is a third party’s promise. A surety undertakes to the owner that the contract will be performed and that the people below you will be paid, and you indemnify the surety for whatever it pays. It costs you a premium and, more importantly, it consumes bonding capacity — the single-job and aggregate limits your surety sets for your account.
They overlap in what they protect the owner against and differ in almost everything else. Retainage is immediate, self-executing, and limited to money already earned. A bond is slower to call, requires establishing a default, and reaches far beyond what the owner is holding.
Which is why an owner holding full retainage on a fully bonded job has belt and braces, and the contractor is paying for both.
Connecticut ties them together and caps one
Connecticut is the clearest statutory link we have read. Where a payment bond is required and the contract requires the prime to furnish a performance bond in the full amount of the contract price, then on a contract advertised by the Department of Administrative Services or another state agency, Conn. Gen. Stat. § 49-41 provides:
“(A) the awarding authority shall not withhold more than seven and one-half per cent from any periodic or final payment which is otherwise properly due to the general or prime contractor under the terms of such contract, provided, when fifty per cent of the contract is completed, said amount shall be reduced to five per cent”
and, for the tier below:
“(B) any such general or prime contractor shall not withhold from any subcontractor more than (i) seven and one-half per cent from any periodic or final payment which is otherwise due to the subcontractor, or (ii) the amount withheld by the awarding authority from such general or prime contractor under subparagraph (A) of this subdivision, whichever is less”
Three features are worth pulling out.
The cap exists because the bond exists. The provision is conditioned on a full-price performance bond being required. The legislature is saying that once the owner has a bond for the whole contract, it does not also get unlimited retention.
It steps down at the halfway point rather than at completion, so money is released while the work is still running — which is when a contractor actually needs it.
It flows down, and it is capped by what came from above. A prime cannot hold more from a subcontractor than it is itself having held, which stops the cap being absorbed at the top of the chain.
Washington lets one replace the other
Washington goes further and makes them alternatives, at the contractor’s election, below a figure.
RCW 39.08.010:
“(3) On contracts of one hundred fifty thousand dollars or less, at the option of the contractor or the general contractor/construction manager as defined in RCW 39.10.210 , the respective public entity may, in lieu of the bond, retain ten percent of the contract amount for a period of thirty days after date of final acceptance, or until receipt of all necessary releases from the department of revenue, the employment”
Read the mechanics. The election is the contractor’s, not the owner’s. The substitute is a defined retention — a stated percentage for a stated period after final acceptance, subject to agency releases. And it is expressly in lieu of the bond, not in addition to it.
For a small contractor this is a genuine choice between two costs. A bond consumes surety capacity and a premium; the retention consumes cash for a defined window. A contractor with tight bonding capacity and adequate cash may rationally take the retention. A contractor living on progress payments will not.
The same section adds that for contracts at or below that figure the public entity may accept a full payment and performance bond from an individual surety — a second accommodation at the same tier.
Everywhere else, it is a contract term
Those two are the exceptions. In most of the statutes we have read the bond requirement says nothing about retainage, and retainage is set by the contract documents.
That matters more than it sounds. If the link is contractual rather than statutory, it is negotiable — and a contractor posting a full-value performance bond on a private job has a straightforward argument for a lower retention, because the owner has already been given the stronger of the two protections.
What this page does not cover
It does not survey retainage law, which is a large body of state statute in its own right — prompt-payment acts, release schedules, interest on withheld sums — and mostly lives outside the bond chapters we have been reading.
It also does not address retainage on federal contracts, and it quotes only the two states whose provisions we have read in full. A state absent here is absent because we have not read its retainage provision, not because it has none.
