
A manufacturer’s biggest risks are usually invisible on the P&L: a standard cost set three years ago that is quietly mispricing every quote, and working capital trapped in stock and machinery that the profit line never mentions. A specialist manufacturer can be busy and profitable on paper while slowly starving itself of cash. This is a virtual CFO’s view of the numbers that run a manufacturing business, for owners rather than accountants.
Published: July 2026
A manufacturer turns materials and labour into product, and its profit depends on two things the accounts show poorly: whether the cost it thinks each product carries is the cost it actually carries, and how much cash is tied up in the stock, work in progress, and equipment needed to make it. Revenue and gross profit look simple; the truth lives in costing accuracy and working capital, and both drift silently.
A virtual CFO engagement for a manufacturer usually starts by testing the costing and mapping the working capital, because those are where the largest hidden problems and the fastest cash wins tend to sit.
Most manufacturers price off a standard cost: an assumed cost per unit built from expected material, labour, and overhead. The problem is that standard costs age. Material prices rise, labour rates change, a process gets slower or faster, and unless the standard is revisited, every quote built on it is wrong by a growing margin. A manufacturer quoting off a three-year-old standard can win work enthusiastically because it is underpricing, and lose money on every unit without knowing why.
The fix is a periodic comparison of standard to actual, a cost variance walk, that shows where the assumed cost has drifted from reality. It is not glamorous, but on a business where a few points of margin decide the year, it is often the single most valuable analysis a CFO does. It turns “we are busy but cash is tight” into a specific list of products that are mispriced.
The second number is capacity. Manufacturing carries heavy fixed costs, equipment, factory space, core staff, that are paid whether or not the line runs. Utilisation, how much of the available capacity is actually producing saleable product, therefore drives margin heavily. An idle line is not neutral; it is fixed cost with no revenue against it, the manufacturing equivalent of a consulting firm’s bench.
Modelling capacity shows the revenue the current plant can support and how far the business is from that ceiling. It informs the two big decisions manufacturers face: whether to invest in more capacity, and whether the existing capacity is being wasted on low-margin work that a better mix would displace.
The third and often largest issue is working capital. A manufacturer holds cash in raw materials, in work in progress on the factory floor, and in finished goods waiting to ship, then extends credit to customers who pay on terms. The cash conversion cycle, the time from paying for materials to collecting from customers, can run to many weeks, and every dollar of growth extends it further. This is why a growing manufacturer so often feels cash-starved despite being profitable: the profit is sitting in inventory and debtors. The dynamic is the same one covered in the self-funded growth rate, and it is the reason inventory discipline matters so much.
Take a $10M manufacturer running a 32 per cent gross margin with inventory turning, say, four times a year. On the blended numbers it is a solid business. Rebuild the costing and two things surface. A cost variance walk shows that on the highest-volume product line, actual material and labour cost has risen well above the standard still used for quoting, so a flagship line is running several points thinner than the accounts assume. And the working capital map shows the cash conversion cycle has stretched as the business grew, tying up an extra several hundred thousand dollars in stock and debtors over two years, which is exactly the cash the owner has been wondering about. Both are now decisions: reprice the drifted line, and attack the inventory and collection cycle.
The natural fixed-scope deliverable is a unit economics and costing build that re-establishes true cost per product and exposes the mispriced lines, or a 13-week cashflow forecast built around the working capital cycle. Either is a 90-Day Number engagement at a fixed $17,850 plus GST, delivered by day 90 and yours to run. The inventory side connects to inventory buying plans, which applies equally to a manufacturer funding raw materials.
Past roughly $25M in revenue, or where a complex multi-site operation needs daily financial control, a full-time CFO or financial controller earns their place. Below that, the manufacturer needs specific analysis built well, costing truth, capacity, working capital, rather than a full-time hire. A project-based virtual CFO delivers those and leaves. See when you have outgrown a virtual CFO.
Why does an old standard cost cause problems?
Because it silently misprices every quote built on it. Material prices, labour rates, and process efficiency all change over time, so a standard cost set a few years ago drifts from reality. A manufacturer quoting off a stale standard can underprice enthusiastically, winning work while losing money on each unit, without any obvious signal in the accounts.
What is a cost variance walk?
A periodic comparison of the standard cost you quote against the actual cost you incur, line by line, so you can see where the two have diverged. On a business where a few margin points decide the year, it is often the highest-value analysis a CFO performs, because it converts a vague cash squeeze into a specific list of mispriced products.
Why does a profitable manufacturer run short of cash?
Because profit gets trapped in working capital: raw materials, work in progress, finished goods, and customer debtors. The cash conversion cycle can run many weeks, and growth extends it, so a growing manufacturer ties up more cash in stock and receivables even as the P&L shows profit. The profit is real; it is just sitting in inventory rather than the bank.
How does capacity utilisation affect margin?
Manufacturing carries heavy fixed costs paid whether the line runs or not, so utilisation drives margin. An idle line is fixed cost with no revenue against it. Modelling capacity shows the revenue the current plant can support, informs whether to invest in more, and reveals whether existing capacity is being wasted on low-margin work.
Do you handle our inventory or ERP system?
A virtual CFO uses the data your inventory and ERP systems produce; running or configuring those systems is an operational function, not CFO work. The CFO layer sits on top: turning the data into costing truth, a capacity model, and a working capital analysis that drive pricing and investment decisions.
We turn over $12M and cash is always tight. Do we need a full-time CFO?
Not necessarily. Persistent tightness at that size usually points to a costing or working capital problem that a fixed-scope project can diagnose and fix, rather than to a need for daily finance leadership. A full-time CFO tends to make sense past roughly $25M or where a complex multi-site operation needs constant control.
How much does it cost?
The 90-Day Number is a fixed $17,850 plus GST for one named deliverable by day 90, no retainer. The common Australian alternative is an open-ended monthly retainer at $3,000 to $8,000; the fixed-scope project model is deliberately different and rare in this market.
Sydney Virtual CFO is a Sydney-based virtual CFO service for founders running $2M to $15M businesses across SaaS, ecommerce, professional services, construction, and other low-volume, high-value industries. We deliver fixed-scope CFO engagements with a named deliverable on day 90: a 13-week cashflow forecast, a fundraise-ready financial model, a unit economics build, or a board reporting pack you can run on your own.
Our front-door product, the 90-Day Number, is fixed scope at $17,850 plus GST. We are one of the few project-based virtual CFOs in Australia, in a market built almost entirely on monthly retainers. No retainers without a deliverable. No 80-page reports. No theatre.
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This content is general information only, written for Australian founders running businesses in the $2M to $15M revenue range. It does not constitute tax, financial product, investment, or legal advice and should not be relied on as such. The work referenced is led by a Chartered Accountant (CA ANZ), but Sydney Virtual CFO is not a licensed tax agent, not a licensed financial adviser, and not authorised to provide personal financial advice. Tax obligations, accounting treatments, fundraise terms, and statutory requirements depend on your individual circumstances. For advice specific to your business, contact the team directly or consult a registered tax agent, licensed financial adviser, or qualified lawyer. Information was current at the time of publication and may change without notice. We review and update guides periodically.