The work is done. The costs have already been paid. Your team has been on site, materials have been ordered, subcontractors have been paid, but a meaningful portion of the money you’ve earned is still sitting somewhere between “invoiced” and “paid”.

For many construction businesses across Australia and New Zealand, waiting 60, 90 or even 120 days for payment is part of doing business. Add retention on top, with 5–10% of project revenue potentially tied up until later in the project lifecycle, and the pressure on working capital can quickly build.

But the real problem isn’t simply that the money is delayed.

It’s that you often don’t have a clear picture of exactly how much is tied up, when it should be released, or what that delay is doing to the rest of the business.

And when cash flow depends on information that is difficult to see, track or predict, managing it becomes a guessing game.

The real cost of retention isn’t just the money, it’s the guessing

Retention is designed to protect the parties involved in a construction project. The problem starts when the business holding that retention has to manually keep track of what is owed, when it becomes payable and whether the relevant conditions have been met.

One project might have a retention due after practical completion. Another may have a different release milestone. Payment terms can vary between contracts, clients and tiers of the supply chain.

The result is a growing gap between what the business has earned and what leadership can confidently say it will receive and when.

That uncertainty matters. If 5–10% of revenue is tied up on a project, the impact doesn’t necessarily appear as an obvious loss on the P&L. The work may still be profitable. The invoice may still be outstanding. But the cash that could be funding payroll, materials, equipment, new projects or growth is unavailable in the meantime.

And when retention schedules are being tracked across spreadsheets, emails and accounting records, it becomes surprisingly easy to discover the problem only when someone asks: “Why hasn’t that money come in yet?”

By then, the month-end numbers may already be telling a different story from the operational reality. That’s why construction cash flow retention is ultimately a visibility issue as much as a payment issue. The businesses that can see what is committed, what has been billed, what is being retained and what is due next are in a much stronger position to manage the gap.

Why this hits harder than it used to

Long payment cycles aren’t new. What has changed is the environment businesses are trying to absorb them in.

Construction firms are dealing with continued labour shortages, unpredictable material costs, tighter margins and increasing compliance demands. MYOB’s recent construction research highlights how these pressures are forcing businesses to focus more closely on cost control, productivity and resilience.

When costs move faster than expected, having cash tied up for another 90 days becomes more consequential. A delayed payment doesn’t happen in isolation, either. It can mean less working capital available for the next project. It can affect purchasing decisions. It can put additional pressure on finance teams. And where businesses rely on overdrafts or short-term finance to bridge the gap, the cost of waiting can extend beyond the value of the retention itself.

A construction business can appear profitable while still feeling cash poor. It can have a healthy pipeline while struggling to fund the work already underway. And it can have money coming, without knowing precisely when.

What we hear from construction leaders directly

This challenge isn’t simply about adopting more technology. It starts with having the right foundations in place.

That message comes through strongly in MYOB Acumatica’s Autonomous Business Report 2026, which found that three-quarters of mid-sized business decision-makers plan to change or upgrade their ERP within the next two years. The report identifies connected systems, data quality and core ERP capabilities as key foundations for businesses looking to improve productivity and autonomy.

As one General Manager of a construction business put it:

“We need to start with an organised base and build from there. You can get so much more value out of AI and automation when it’s all in the same place.”

That is particularly relevant when it comes to managing retention in construction. You can’t automate your way out of information that isn’t organised in the first place. Before a business can confidently forecast cash flow, automate payment processes or use AI to surface opportunities and risks, it needs reliable information about what’s happening across its projects.

What has been billed? What has been paid? What’s being retained? When should it be released? What is the actual cost of delivering the work? When those answers live in different places, every financial decision takes more effort.

The pattern in firms that don’t feel this as acutely

The difference isn’t necessarily that these businesses have shorter payment terms. It’s that they have better visibility over the payment cycle they are operating within.

Instead of discovering a retention issue at month-end, they can see outstanding amounts and upcoming release dates as part of the wider project picture. Instead of manually reconciling billing information, progress claims and job costs, connected workflows reduce the gaps between them. And instead of relying solely on historical financials to understand project performance, leadership can see how actual costs are tracking against budgets while work is still underway.

That can mean:

• Automated billing and progress claims, reducing the manual work involved in keeping invoices moving
• Retention release dates that are visible and flagged, so money doesn’t disappear into a spreadsheet and get forgotten
• Real-time job costing, helping teams understand the true position of a project as costs are incurred
• Connected financial and operational data, giving leadership one clearer view of cash, costs and project performance

These aren’t just efficiency improvements. They change the quality of decisions a construction business can make. When you know what cash is coming, what is tied up and where your projects are really tracking, you can plan with more confidence, rather than continually reacting to what’s already happened. That is the shift from cash-flow firefighting to cash-flow control.

Where this connects to the bigger picture

This same pattern shows up elsewhere on a construction project, too, in how scope changes outrun the paperwork meant to track them, and in how subcontractor compliance gets scattered across inboxes and spreadsheets instead of sitting in one place. Different symptoms, same root cause: information that exists, but isn’t connected.

Where to start if this is you

If your team is regularly chasing invoices, checking spreadsheets for retention dates or finding unexpected gaps between project performance and cash position, the problem may not be that your people aren’t working hard enough. It may be that the systems supporting them aren’t giving them the visibility they need.

The first step is to understand where those gaps exist. Our Construction ERP Readiness Checklist can help you assess how well your current systems support project costing, financial visibility, billing, retention management and the operational demands of a growing construction business.

And if you want to see what a more connected approach can look like in practice, join our upcoming construction webinar for a practical look at how modern ERP can bring project, financial and operational information together.

Because when payment takes 90 days, you can’t afford to spend the first 60 trying to work out where your money stands.