Retention Money: What It Is and How It Affects Cash Flow

Retention money is a portion of a progress payment withheld by the client, even after the underlying milestone is met, held as security until any defects are fixed and a defined liability period passes. We’re Southern Cross Business Finance, a commercial finance brokerage based in Forest Hill, Melbourne, and this withheld amount is one of the least discussed but most persistent cash flow pressures in construction and trades work, precisely because it’s money genuinely earned that simply hasn’t arrived yet.

How retention actually works

A contract specifying retention will typically withhold a percentage of each progress payment, rather than the final payment alone, meaning the amount held back accumulates progressively across the whole job rather than arriving as one deduction at the end. That accumulated amount is then usually split into two release points: a portion released at practical completion, when the job is finished and handed over, and a further portion released only after a defined defect liability period, commonly extending well beyond the job’s actual completion date.

The practical effect is that a meaningful share of a job’s total value can remain outstanding for months after the work itself is finished, which is very different from a standard invoice simply waiting on payment terms.

Why retention exists in the first place

From a client or head contractor’s perspective, retention is a defect security mechanism: if something goes wrong after handover, the retained funds give them recourse to have it fixed without needing to chase the trade separately for the cost. This is a reasonable protection in principle, and it’s not something most trades can simply refuse to accept, since retention clauses are standard practice across a large share of construction contracts. The issue for trades isn’t usually the existence of retention, it’s the compounding effect of retention across multiple simultaneous jobs, each holding back its own share, all released on their own separate timelines.

Retention versus a bank guarantee: an alternative worth knowing about

On some contracts, particularly larger ones, a subcontractor may have the option to provide a bank guarantee instead of having cash retained from progress payments. A bank guarantee gives the head contractor the same security, recourse if defects aren’t fixed, without the subcontractor’s actual cash being withheld along the way. This can meaningfully improve cash flow compared with cash retention, since the money keeps working in the business rather than sitting with the client, though a bank guarantee itself typically requires security or a facility limit with a bank, which is a cost and an application process of its own. Where this option exists on a contract, it’s worth weighing against straightforward cash retention rather than assuming cash retention is the only option.

How much this typically affects a trade’s cash flow

The specific percentage and release timing vary by contract, industry convention and jurisdiction, so it’s worth checking your own contract terms directly rather than assuming a standard figure. What matters more than any specific percentage is the compounding pattern: a trade running several jobs at once, each with retention accumulating and each releasing on a different schedule, can have a genuinely significant amount of earned but unreleased money sitting across their active jobs at any given time, even though each individual contract’s retention clause looks modest in isolation.

Tracking retention across multiple jobs without losing sight of it

A common practical problem is simply losing track of how much retention is sitting out across active and recently completed jobs, since each contract has its own percentage, its own release date, and its own conditions, and none of it shows up as an outstanding invoice in the way unpaid work normally would. Keeping a simple running ledger, separate from your normal invoicing records, listing each job’s retained amount and expected release date, is a small piece of admin that makes a real difference to understanding your true cash position at any point in time, rather than being surprised when a expected release date passes and the money is significantly overdue.

Retention trust accounts and recent changes worth being aware of

Some Australian states have introduced or are progressively introducing retention trust account requirements for larger construction contracts, intended to protect subcontractors by requiring retained funds to be held in a separate trust account rather than simply recorded as a liability on the head contractor’s own books. Where this applies, it offers real protection against a head contractor’s insolvency wiping out retained funds owed to subcontractors. Rules and thresholds vary by state and change periodically, so it’s worth checking current requirements for your specific state and contract size directly with your accountant or industry association rather than relying on a general summary, since this is exactly the kind of detail that dates quickly.

Can retention money be financed?

Retention itself is somewhat harder to finance directly than a standard invoice, since it’s contingent on a future defect liability period passing rather than being immediately due, which makes it a less straightforward asset for a lender to advance against compared with a normal issued invoice. Where retention is a genuine, recurring cash flow drag across your jobs, the more common and effective approach is factoring it into the same cash flow planning covered in our articles on cash flow gaps and progress payments, sizing an appropriate facility around the total pattern rather than trying to finance the retained amounts specifically.

Why lenders treat retention differently to a normal receivable

A standard unpaid invoice is a defined, currently-due amount with a clear payment date. Retention is neither: the release date depends on a defect liability period that could theoretically be extended if a defect is identified, and the amount itself could technically be reduced if the retained funds are used to remedy a defect the subcontractor doesn’t fix themselves. This uncertainty is exactly why retention doesn’t finance the same way an invoice does, and it’s worth understanding this distinction rather than assuming a lender will treat retained funds the same way they’d treat a normal, currently-due receivable when assessing what can be advanced against your business.

What trades can do about retention practically

A few practical levers exist even though retention itself is largely non-negotiable on most contracts. Negotiating a shorter defect liability period where possible reduces how long funds sit withheld. Keeping meticulous records of work completed and milestones met strengthens your position if a dispute arises over whether retained funds should be released. And factoring the expected retention amount and its likely release timing into your own cash flow planning from the start of a job, rather than being surprised by it later, means the gap is planned for rather than discovered.

Why documenting handover condition matters more than most trades realise

A significant share of retention disputes come down to disagreement over whether an issue identified after handover was actually present at handover, or arose afterward through normal wear, other trades’ work, or the client’s own use of the property. Photographing completed work at handover, with a timestamp, is a simple habit that provides real leverage in exactly this kind of dispute, since it shifts the burden of proof rather than leaving it as one party’s word against another’s months after the work was finished.

What to check in a contract before signing

Before signing a contract with a retention clause, it’s worth being clear on four specific things: the percentage retained from each payment, whether retention is held in a separate trust account or simply recorded as a liability, the specific length of the defect liability period, and the exact conditions that trigger release of the final retained amount. Contracts that leave any of these vague, particularly the release conditions, are worth pushing back on before signing rather than after, since ambiguity here tends to favour whoever is holding the money.

A brief word on GST and retention

Retention money still generally has GST implications at the time the underlying supply is made, even though the cash itself hasn’t been received yet, which can create a timing mismatch between when GST is payable and when the retained cash actually arrives. This is a genuine complexity worth raising with your accountant specifically, since the correct treatment can depend on your accounting method and the specific structure of the contract, and getting it wrong can create its own separate cash flow surprise layered on top of the retention itself.

Retention money FAQs

Is retention money the same as a deposit?

No. A deposit is paid upfront by the client before work starts. Retention is withheld from payments the trade has already earned, as security against future defects.

Can I refuse to accept a retention clause?

It depends on your negotiating position and the norms of your specific industry and contract size. Retention is standard practice on many construction contracts, so refusing it outright isn’t always realistic, though the specific percentage and terms are often negotiable.

What happens to retention money if the head contractor becomes insolvent?

This depends on whether the funds are held in a separate trust account, which some states now require for larger contracts, or simply recorded as a liability on the head contractor’s own books, in which case subcontractors can be left unsecured creditors.

How long can retention money be held for?

This varies by contract but commonly extends through a defect liability period lasting from several months to a year or more after practical completion, set out in the specific contract terms.

Can a broker help finance retention specifically?

Retention itself is harder to finance directly than a standard invoice, since it isn’t immediately due. It’s generally better addressed through broader cash flow planning across your jobs rather than financing the retained amount specifically.

Should I factor retention into my pricing?

Many trades do build the cash flow cost of retention into their overall pricing, since the money is effectively unavailable for a period even though it’s genuinely earned. This is worth discussing with your accountant as part of broader pricing strategy.

Plan for retention rather than being surprised by it

Retention money is a normal part of construction contracts, but its cash flow effect is worth planning for explicitly rather than discovering partway through a job. We work across Forest Hill, Melbourne CBD and Mornington. Contact Southern Cross Business Finance