Some of your work loses money and the total will not tell you which

An average conceals both ends of the range

Most very small businesses have exactly one measure of profitability: what came in over a year against what went out. That number is genuinely useful and it is an average, and averages are constructed from things that are better and worse than themselves.

Inside a perfectly respectable annual figure there is usually a spread. Some work returns several times what it costs. Some returns almost nothing. And a portion — often a larger portion than anybody expects — costs more to deliver than it brought in, and is being funded by the good work sitting next to it in the same total.

What a job actually consumes

The reason unprofitable work is invisible is that the cost of a job is not the cost of doing it. It includes the enquiry, the quote, the travel, the conversations, the thing that had to be redone, the invoice, the reminder, and the two months of financing between spending and being paid.

Priced against the hours actually spent on the work itself, a job can look excellent. Priced against every hour it consumed from first contact to money received, the same job can be at or below what it cost. That gap is where the losses live, and it is why measuring by the timesheet alone is misleading.

Frequently it’s the client rather than the job

Two clients buying identical work can be worth completely different amounts. One approves things quickly, provides what they promised, accepts the first version and pays on time. The other requires four meetings, changes the brief, sends materials late and then queries the invoice.

The work is the same and the cost is not remotely the same. This is one of the most useful things a small business can discover about itself, because it explains why some months are exhausting and unrewarding, and because it points at a remedy that does not involve working harder.

Measuring it without building a machine

Nobody in a business of one is going to maintain a detailed costing system, and the good news is that a crude version answers the question. Take the ten largest jobs of the last year. For each, write down what it brought in, and an honest estimate of the total time it consumed from first contact to final payment, plus any direct costs.

Divide one by the other and you have an effective rate per job. Ten of those, ranked, will tell you almost everything worth knowing. The bottom two or three are usually a surprise to nobody once they are written down, and seeing them side by side with the best ones is what turns a vague irritation into a decision.

Then do something specific with the answer

There are four available responses and only the last of them is passive. Reprice the work, so that what it genuinely costs is what it charges. Redesign it, if the cost is coming from a process that could be shortened or a stage that could be standardised. Decline it in future, which is the right answer for work that cannot be made to pay at any price the market will bear.

Or keep it knowingly, because it leads somewhere, keeps a valuable relationship alive, or fills capacity that would otherwise be empty. That is a legitimate choice. It is only a mistake when it’s made by default, without anybody having established that it is a subsidy at all.

This is a different question from whether the money arrives

A business can be profitable on every single job and still run out of cash, because profit and timing are separate measurements. This exercise does not address that at all, and doing it will not tell you whether next month is affordable.

What it tells you is where the profit is being made and where it’s being given away, which is the question that shapes what the business should sell and to whom. The two enquiries are complementary, and a business that has done neither is running on the assumption that all its work is roughly equivalent, which is almost never true.

It is worth repeating the exercise every year or so, because the answer moves. Work that was profitable becomes less so as it gets more complicated, and work that lost money becomes worthwhile once you have done it enough times to be quick at it. A single audit is a snapshot; the value comes from watching which direction each category is travelling in.