The Five Numbers Every Business Owner Should Know

1. Gross profit margin

Your gross profit margin is what is left from your revenue after you subtract the direct costs of delivering your product or service - materials, direct labour, subcontractors. It tells you how efficiently you are converting sales into profit before your overheads are taken into account. If your gross margin is shrinking over time, it usually points to a pricing problem, a cost control issue, or a change in your sales mix. It is one of the first numbers to watch when business feels busier but less profitable.

2. Net profit margin

Net profit is what remains after all costs - including overheads, staff costs, premises, finance charges, and tax - are deducted from revenue. Your net margin tells you what the business is actually generating for you as the owner. A business can have impressive turnover and a healthy gross margin but still produce very little net profit if overheads are allowed to grow unchecked. Tracking this number over time is more useful than any single snapshot.

3. Debtor days

Debtor days measures how long, on average, it takes your customers to pay you after being invoiced. A rising debtor days figure is one of the most common reasons businesses run into cash flow problems even when sales are strong. If you are invoicing promptly but waiting 60, 90, or more days to be paid, your cash is effectively being held by your customers interest-free. Getting on top of this number - and actively managing your credit control process - can transform your cash position without changing your sales at all.

4. Break-even point

Your break-even point is the level of revenue you need to generate in order to cover all your costs - the point at which the business is neither making nor losing money. Every business owner should know this figure by heart, because it anchors every other commercial decision. Thinking about taking on a new member of staff? Your break-even point shifts. Considering moving to larger premises? It shifts again. Understanding where you break even gives you a framework for evaluating any significant change to your cost base.

5. Tax liability forecast

Most business owners think about tax when a bill arrives. The best-run businesses think about it throughout the year. A forward-looking tax liability forecast - an estimate of what you are likely to owe in corporation tax, income tax, or VAT over the coming months - allows you to set aside funds as you go, plan your cash flow around payment dates, and take advantage of any reliefs or timing opportunities before the year end. This is one of the most practical services a good accountant can provide, and it eliminates one of the most common sources of financial stress for business owners.