Your Daily Break-Even Number: The Figure Every Small Business Owner Should Know by Heart

What Break-Even Actually Means#

Break-even is the revenue level at which your total income exactly covers your total costs — zero profit, zero loss. Below break-even, every pound of revenue contributes toward covering your fixed costs but doesn't reach them all. Above break-even, every additional pound of revenue (after variable costs) is profit. The reason break-even matters day-to-day is that your fixed costs — rent, insurance, salaried staff, software, loan repayments — are charged every day whether you trade or not. If you close on a Monday and open on a Tuesday, Monday's fixed costs still happened. Tuesday's revenue needs to cover Tuesday's costs plus recover Monday's shortfall.

Calculating Your Break-Even in Three Steps#

Step 1: Calculate your monthly fixed costs (rent, salaries, insurance, subscriptions, loan repayments — costs that don't change with sales volume). Say £12,400/month. Step 2: Calculate your gross margin % (revenue minus variable costs, divided by revenue). If you sell at £100 and your variable cost — ingredients, materials, payment processing — is £38, your gross margin is 62%. Step 3: Break-even revenue = Fixed Costs ÷ Gross Margin %. So £12,400 ÷ 0.62 = £20,000/month, £4,615/week, £658/day (on 30 trading days). Every day you take £658 or more, you're contributing to profit. Every day below £658, you're in deficit.

Using Break-Even as a Daily Management Tool#

AskBiz shows your daily sales total against your break-even target on the main dashboard. At noon, you've done £310 against a £658 target. You're halfway through the day, halfway to break-even — broadly on track. If you've done £180 by noon, you're well behind and need to understand why. Is it a slow Monday? An event nearby pulling customers? A product out of stock? The visibility at noon gives you the afternoon to act — a push on social media, a special offer, a call to a regular customer who's overdue a visit. You can't manage what you don't measure, and you can't measure something you don't know.

Break-Even Changes When Your Costs Change#

Your break-even is not a fixed number. When your rent increases, your break-even goes up. When you hire a new full-time employee, it goes up. When a supplier drops their price, your gross margin improves and break-even goes down. Most business owners recalculate break-even once a year (usually never). AskBiz recalculates it automatically whenever your Xero fixed cost data changes — so the number on your dashboard always reflects your current cost structure, not last January's. When your landlord raises the rent by £400/month, your break-even target updates on the same day.

• Most small business owners couldn't tell you their daily break-even number without a spreadsheet.
• But every single trading day, that number is either hit or missed — and missing it by 10% for six weeks produces a financial shortfall that feels like it "came out of nowhere." AskBiz calculates your break-even from your fixed costs and gross margin, then shows your daily actual sales against that target on your dashboard.