Working capital optimization has moved from a CFO best practice to a strategic imperative in the current environment. When the cost of external financing was negligible, a business that was inefficient at converting revenue to cash was paying a small price for that inefficiency. At today's rates, the same business is paying a materially larger price — and in sectors where margins are compressed, the cash trapped in inefficient working capital cycles can be the difference between growth and stagnation.
Most mid-market businesses are sitting on a working capital improvement opportunity that could release 10-20% of annual revenue in cash if pursued systematically. The businesses that have identified and captured this opportunity have, in effect, funded their growth without needing external capital. Those that have not are leaving real money on the table.
Why Working Capital Has Become the CFO's Primary Focus
Three factors have converged to make working capital optimization the dominant topic in CFO conversations in 2025.
First, the cost of capital has risen substantially. The implicit cost of carrying excess working capital — funded by revolving credit facilities at 7-8% or by cash that could otherwise be deployed — has roughly doubled from where it was in 2021. The arithmetic of working capital efficiency has become much more compelling.
Second, credit availability has tightened. The revolving credit facilities and overdraft headroom that many businesses used to buffer working capital inefficiency are either more expensive, more covenant-constrained, or both. The banks financing working capital in 2025 are more careful than they were, which means businesses cannot rely as easily on the credit system to absorb their cash conversion weaknesses.
Third, investor and board expectations have shifted. Free cash flow conversion — the ratio of free cash flow to EBITDA — has replaced revenue growth as the primary financial metric scrutinised by investors in many sectors. A business with strong EBITDA and poor free cash flow conversion is now valued differently, and more critically, than it was when growth was the dominant metric. Working capital quality is central to free cash flow conversion quality.
The Cash Conversion Cycle: Where Value Is Made and Lost
The cash conversion cycle is the foundational metric for working capital analysis: it measures the number of days between when a business pays for its inputs and when it collects cash from its customers. It is calculated as Days Sales Outstanding (DSO) plus Days Inventory Outstanding (DIO) minus Days Payable Outstanding (DPO).
Small improvements in each component compound into significant cash release. Consider a business with $100M in revenue, a 45-day DSO, a 30-day inventory cycle, and a 35-day DPO — giving a cash conversion cycle of 40 days and approximately $11M of net working capital required to fund operations. Improving DSO by 7 days, reducing inventory by 5 days, and extending payables by 5 days compresses the cycle to 23 days — releasing approximately $4.7M in cash. That is a one-time cash release that recurs as an ongoing lower funding requirement.
The specifics are different in every business, but the structure of the analysis is the same. The CFO's job is to understand exactly where the working capital is sitting, what is driving each component, and which levers are available and commercially appropriate to pull.
Sector-Specific Benchmarks: What Good Looks Like
Working capital benchmarks vary significantly by sector, and understanding where your business sits relative to sector peers is the starting point for a credible improvement programme.
Manufacturing businesses typically carry the highest working capital intensity, given raw material inventory, work-in-progress, and finished goods cycles. DSOs of 45-60 days and DPOs of 45-60 days are common. Best-in-class manufacturers in the GCC and globally are achieving meaningful competitive advantage through inventory management discipline and supply chain finance programmes that extend effective payables without damaging supplier relationships.
Professional services businesses — consulting, advisory, managed services — typically have lower inventory requirements but significant receivables exposure, often with DSOs of 50-75 days. The billing and collections cycle is the primary working capital lever in these businesses, and the discipline of issuing invoices promptly, following collections processes rigorously, and pricing milestone payment structures into contracts can significantly reduce the funding requirement.
Technology and SaaS businesses, particularly those with subscription revenue models, can often run negative working capital cycles — collecting subscription fees in advance of delivering the service. For businesses that have not structured their revenue terms to capture this advantage, the comparison to peers who have is a powerful argument for contract restructuring.
The Receivables Problem in GCC Markets
One of the distinctive working capital challenges in GCC markets — particularly for businesses with significant government or quasi-government customer exposure in Saudi Arabia and UAE — is payment cycle length. Government procurement processes, approval chains, and payment systems in the GCC often result in effective payment cycles of 90-120 days, even where contracts specify shorter terms.
This is not a niche issue. Many of the most commercially attractive clients in Vision 2030 markets are government entities or government-backed companies, and their payment behaviour is shaped by institutional processes that suppliers have limited ability to change. The implication for working capital modelling is direct: businesses entering GCC government-adjacent markets need to build realistic receivables assumptions, and need to have sufficient working capital facilities to fund the gap.
Managing this without damaging client relationships requires a nuanced approach. Proactively engaging with client finance teams on invoice status, building relationships with accounts payable contacts, and structuring milestone payment terms into contracts where possible are the practical tools available. Some businesses in this environment are also using supply chain finance facilities — where a third-party funder advances payment on approved invoices at a discount — to access cash earlier while managing the client relationship carefully.
Supply Chain Finance and Dynamic Discounting
On the payables side, sophisticated CFOs are using supply chain finance and dynamic discounting programmes to optimise the payables component of the working capital cycle.
Supply chain finance allows buyers to extend payment terms with suppliers while giving suppliers the option to receive early payment from a third-party financier at a cost that reflects the buyer's credit rating rather than the supplier's. For a large business with a strong credit rating buying from smaller suppliers with higher borrowing costs, this creates genuine value on both sides.
Dynamic discounting — where the buyer uses its own cash to offer suppliers early payment in exchange for a discount — works in the opposite direction but can generate attractive returns on the buyer's excess cash in the current rate environment, while improving supplier liquidity.
Building the 90-Day Working Capital Improvement Programme
The structured approach to working capital optimization that generates the most consistent results is a focused 90-day programme with specific, measurable targets for each component.
The programme starts with a detailed working capital diagnostic: a granular analysis of the current cycle by segment, customer, and geography, benchmarked against sector peers. This identifies the largest opportunities and prioritises the levers that are both high-value and practically implementable.
The first 30 days focus on quick wins: accelerating billing cycles, tightening collections on the oldest receivables, and identifying any inventory that can be converted to cash without operational disruption. These actions typically yield 30-40% of the total available improvement.
Days 31-90 focus on structural changes: renegotiating payment terms with key customers and suppliers, implementing working capital reporting in the management accounts that creates ongoing visibility and accountability, and embedding working capital metrics into operational team performance frameworks.
The FP&A function's role in sustaining working capital discipline beyond the initial programme is critical. DSO, DPO, and inventory turns need to be standing agenda items in every management reporting cycle — not metrics that are examined quarterly or when there is a cash crisis.
Working capital optimization is unglamorous work. But the cash it releases is real, it is immediate, and it is free. In the current environment, that makes it the most important lever most CFOs are underutilizing.