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Financial Modelling5 min read

Most Businesses Underestimate Working Capital Risk

MW
Melissa Whipp ACCA, MICB
·10 April 2026

Working capital rarely receives the same attention as revenue growth, margins or profitability.

Yet it is often one of the fastest ways for operational pressure to emerge inside a growing business.

Many leadership teams focus heavily on profit while significantly underestimating the importance of cash conversion.

This creates a dangerous disconnect. A business can appear commercially successful while simultaneously creating increasing liquidity pressure beneath the surface.

Growth Does Not Resolve the Problem

Revenue growth alone does not solve this problem. In some situations, rapid growth can actually accelerate working capital stress. Especially when:

  • debtor collection slows
  • supplier terms tighten
  • inventory expands
  • operational complexity increases
  • or customer concentration grows

Cash flow visibility becomes critically important during scaling phases. Strong businesses understand not just how much revenue they generate, but how efficiently revenue converts into cash. That distinction becomes increasingly important as businesses grow.

Where Forecasting Models Fall Short

Many forecasting models still treat working capital assumptions too simplistically. Debtor days are often assumed to remain stable. Supplier behaviour is treated as predictable. Inventory movement receives limited sensitivity analysis.

The result is that liquidity pressure frequently appears much earlier than leadership expects.

The Case for Integrated Modelling

A properly integrated model should show:

  • how operational changes impact cash flow
  • how revenue timing affects liquidity
  • and how working capital behaviour changes under stress scenarios

Without this visibility, leadership teams often discover working capital pressure too late.

Active Operational Visibility

Modern FP&A should continuously monitor these signals. Not simply through static reporting. Through active operational visibility. Businesses should understand:

  • how cash conversion is evolving
  • where forecast assumptions are weakening
  • and which operational areas are increasing liquidity risk

This is particularly important during periods of uncertainty. Inflation, slower customer payment behaviour and market volatility can materially alter working capital performance even when topline revenue appears stable.

The businesses that navigate these environments effectively are usually the businesses with the strongest operational visibility.

Working capital is not simply a finance metric. It is a strategic resilience indicator. And increasingly, leadership teams that ignore it expose themselves to unnecessary operational risk.

Melissa Whipp ACCA, MICB

Founder, Naked Finance Group Ltd. Former KPMG financial modeller and FP&A specialist working with ambitious businesses across the UK.