Revenue is growing, profits are increasing, and the business appears successful. But what if the real story lies beneath the figures?

The strongest businesses look beyond the headline numbers to uncover risks, spot opportunities, and stay one step ahead. In this article, we break down why financial ratios are essential in every business owner’s toolkit.

Why do financial ratios matter?

Financial ratios are more than calculations for accountants. They answer critical business questions:

• Are customers paying on time?
• Is working capital being managed efficiently?
• Can short-term liabilities be met with available cash?
• Are there early signs of financial pressure?

Whether considering expansion, investing in new equipment, recruiting staff or exploring acquisitions, understanding a business’s financial position provides greater confidence and clarity.

Without analysing the underlying ratios, management may mistakenly assume performance is improving when it is actually becoming harder to sustain. But what are the ratios worth watching?

Gross margin: Is growth really generating more profit?

Revenue growth is often seen as a sign of success, but higher sales do not always lead to higher profitability.

Consider a business whose revenue increases from £2 million to £3 million, while gross profit rises from £800,000 to £900,000. This initially appears positive. However, gross margin has fallen from 40% to 30%. Despite generating an additional £1 million of sales, the business is earning less profit from every pound of revenue.

Many businesses celebrate growing revenue, but gross margin often provides a clearer indicator of commercial performance. A growing business with declining margins may be taking on more work and more risk without achieving a proportionate increase in profit.

Debtor days: How long it takes sales to turn into cash

Revenue and profit may look healthy on paper, but it’s cash that pays suppliers.

The calculation is simple:

Trade Debtors ÷ Annual Sales × 365 Days = Debtor Days

This measures how long it takes customers to pay their invoices and indicates how efficiently sales are being converted into cash. The higher the result, the longer cash remains tied up outside the business.

For example, a business may face significant financing costs if customers routinely take 90 days to settle invoices. By contrast, a business with lower turnover but faster collections may be able to purchase in bulk, negotiate supplier discounts, and achieve a stronger financial position.

This highlights a fundamental principle: profit is important, but cash is king.

Creditor days: Managing cash flow effectively

Just as businesses monitor how quickly customers pay, they should also measure the average time taken to pay suppliers’ invoices.

Put simply:

Trade Creditors ÷ Purchases × 365 Days = Creditor Days

This is a key working capital indicator.

Many businesses benefit from collecting cash from customers before paying suppliers, where creditor days exceed debtor days.

However, paying later is not always the best option. Extending beyond agreed supplier terms can damage relationships, while early settlement can unlock discounts or rewards that generate greater value than retaining the cash for longer. The most successful businesses strike a balance between preserving cash and deploying it where it creates the greatest value.

When your business is financing your customer

Consider two businesses, each generating £2 million of revenue and £200,000 of profit.

Business A collects cash within 30 days. Business B waits 90 days. On paper, they appear equally successful, but Business B has significantly more cash tied up in unpaid invoices.

Now assume Business A purchases goods or services from Business B and routinely takes 90 days to pay its invoices. Meanwhile, Business B relies on an overdraft to fund its working capital. Even though the transaction between them is already completed, Business B is effectively financing Business A’s operations and paying interest for the privilege.

If payment delays extend further, the cost increases. Business B may need additional borrowing simply to meet payroll and other day-to-day commitments, while Business A is potentially earning interest on the unpaid funds or redeploying them to secure discounts from its own suppliers.

Financing costs can erode a substantial portion of the gross profit on a sale and, in extreme cases, exceed it entirely. This highlights why debtor management is about far more than collecting invoices on time. It’s about protecting profit and preserving cash flow.

A sale is only truly profitable when the cash is collected efficiently and converted into working capital.

Current ratio and quick ratio: Understanding liquidity

Two of the most common indicators of short-term financial health are the current ratio and quick ratio, yet they are often misunderstood.

Current Ratio = Current Assets ÷ Current Liabilities

The current ratio indicates whether a business has sufficient resources to meet its short-term obligations.

Quick Ratio = (Current Assets – Stock – Prepayments) ÷ Current Liabilities

The quick ratio focuses on assets that can be converted into cash more quickly by excluding items that may take longer to realise.

These measures assess whether sufficient resources are available to meet upcoming liabilities and can highlight potential issues before they become serious problems.

For example, if liquidity is weak, a business may report healthy profits but still struggle to pay suppliers or meet its tax liabilities. Monitoring these ratios helps management identify risks early and plan with greater confidence.

EBITDA and lending covenants: What does your bank look at before approving finance?

Many loan facilities include financial covenants, requiring businesses to maintain certain performance measures and report them regularly to their lender.

One such measure is Earnings Before Interest, Tax, Depreciation and Amortisation (EBITDA), a commonly used indicator of a business’s underlying operating performance before financing and accounting adjustments are taken into account.

Understanding the measures your lender is likely to assess before seeking finance can help avoid surprises and lead to more productive conversations around funding and growth plans.

Businesses should also be aware that changes to lease accounting can affect EBITDA calculations, as lease costs may be treated differently under the accounting framework. It is therefore worth discussing covenant calculations with your lender to understand how any changes could affect your business’s compliance with those covenants.

The power of proactivity

Historical accounts tell you where your business has been. Financial ratios and forecasts help you understand where it is heading next.

Some businesses spend their time looking backwards, analysing why results differed from expectations, resolving cash flow issues using private funds, and correcting problems after they arise.

Others look forward. Before the year end arrives, they understand how performance is tracking against budget, what their cash position is likely to be, and where opportunities or risks may emerge. Financial ratios help identify the areas of the business that require attention, allowing management to focus their efforts where they can make the greatest impact before the financial year closes.

Management discussions focus not only on what has happened, but on what can be improved next.

Revenue and profit remain important, but understanding cash generation, working capital and financial resilience provides a more complete picture of performance.

At Shaw Gibbs, we help businesses turn financial data into meaningful insight, giving owners and management teams the confidence to make informed decisions, identify risks early and plan for sustainable growth. If you’d like to understand what your numbers are really telling you, our team would be happy to help.