The method
How margin works
- Costs must include your hours, at your rate. A service line’s biggest cost is the person delivering it. Leave your hours out — or price them at a made-up rate below the one your time has to earn — and the margin is fiction: the line looks profitable because its main cost was never charged. The helper above exists to make the honest version the easy version. When the shape grows past one line — a subcontractor to manage, a payment fee, revisions that need a buffer — the project profitability calculator charges all of it; this page is its quick front door, not its replacement. And when that line becomes a fixed quote, the project price calculator is where the quote itself gets built — parts, buffer, expenses, the payment fee read both ways and the deposit the quote implies.
- Margin is where raises and discounts actually live. A price rise does not add its percentage to your year; it adds to the margin, which is why a modest rise on a thin line can double what the line keeps. A discount does the reverse, out of proportion: 10% off a 40%-margin price costs a quarter of the profit, as the worked example shows. Read every negotiation in margin points before you read it in price points, and trade scope for price before you trade margin for nothing.
- Line margin is not business margin. This page reads one line against its own delivery costs. The expense ratio checker reads the whole business — every expense as a share of everything invoiced — and the two numbers answer different questions. A healthy line inside an expensive business still leaks; a lean business can carry one thin line deliberately. Use the line figure to price, and the business figure to steer.
- Repricing a line. A thin margin is information, not a verdict: the line can be repriced, rescoped, or rebuilt so its hours shrink. Our guide to value pricing for freelancers covers when the hour stops being the right unit to price from at all, and our guide to testing a higher rate covers raising the price on real clients without betting the practice on it. What never fixes a thin margin is selling more of the line at the same shape. And when one line becomes three — a good, better and best ladder for the same package — the pricing tier builder spreads the base price across the tiers and reads each tier’s margin at the scope it really carries.
Disclaimer: This is a planning estimate for your own numbers, not financial advice. The verdict bands on this page are practice judgements for hands-on service work, labelled as such — not industry data. What you charge is your decision; the calculator does honest arithmetic on the figures you give it.