What does it really cost me to deliver a service, all-in?

Start from the number you already have

The true cost answer on this site sets out the base calculation: measure per project rather than per firm, build from the fee, hours per person, fully loaded cost per person and allocated overhead, take hours to task level, add AI and tooling as their own line, and use the result before signature rather than after. That number is necessary. It is not the whole cost, because it is usually built from the plan, and several costs never show up in a plan.

As an inference, the founders who ask what a service costs all-in are usually reacting to a familiar experience: the estimate looked healthy, the work was delivered well, and the firm still made less than expected. The gap is almost always in the places below.

Keep two numbers, not one

The engagement management essay in the newer book gives the first number a precise definition. Contribution margin is fees collected, minus direct labor cost, minus direct delivery tools and AI costs, minus subcontractors or third-party delivery expenses. It deliberately excludes overhead and sales and marketing cost, because the person running the work is not responsible for the overhead structure of the firm or what it cost to acquire the client. The essay calls contribution margin the primary scoreboard for delivery: not revenue, not utilization, not delivery completion.

The second number is the full cost, with allocated overhead and the cost of winning the work added back. As an inference, the two answer different questions. Contribution margin tells you whether a piece of work earns its keep and whether delivery is being run well. Full cost tells you whether the offer, at its current price and with its current sales motion, actually adds to EBITDA. A service can show a healthy contribution margin and still lose money for the firm once the pursuit and the overhead it consumes are counted.

What all-in usually leaves out

Leakage during delivery. The engagement management essay says most firms lose margin because they treat scope creep as client service. It describes the people who protect margin as enforcing scope boundaries early, before drift becomes normalized, reducing rework, staffing the right capability to the right work rather than the most expensive person to the most visible work, and keeping velocity high, because slow delivery is expensive delivery. It names scope drift, rework and missed handoffs as where margin leaks. As an inference, compare planned and actual hours on finished work by phase, and the leakage shows up as a pattern rather than as bad luck.

Founder and partner time. The partner pay chapter of the 2020 book tells owners to determine the role, find the going rate in the market for it, and pay at the midpoint, because partners are labor and labor is priced in the open market. As an inference, price every founder and partner hour spent on a project at the market rate for the role being performed, not at zero because the person is an owner and not at whatever they happen to draw. Projects that look profitable often stop looking that way once the senior review, the client calls and the late fixes the founder absorbed are counted.

The cost of winning the work. The business development chapter of the 2020 book says the cost to acquire a new client is expensive and takes a long time: articles, speeches, responses to proposals, competitive bake-offs, decks, travel and references, all requiring staff, time and budget. It says repeat business from existing clients costs much less to generate and spikes profits. As an inference, assign pursuit cost to the client it won, at least roughly, and you will see that the same service delivered to a new client and to an existing one has two different all-in costs.

The cost of waiting to be paid. The cash chapter of the 2020 book says boutiques run on cash rather than on net income or EBITDA, and asks whether payroll growth will exceed receivables growth as the firm grows. The fee quality chapter adds that buyers examine fee quality through cash collections, that aging receivables signal poor fee quality, and that collecting fees in advance is a mark of quality. As an inference, a project paid long after the work is done has cost the firm the payroll it funded in the meantime, and that cost belongs in the all-in picture even though it never appears on the project report.

Count it over the life of the client

The engagement management essay adds a measure that changes how all-in cost should be read: client lifetime value, defined as total contribution margin from cradle to grave. It says attribution should not be split finely across roles, calling that false sophistication that creates complexity, politics and reporting overhead. As an inference, an expensive first engagement can be the right decision if the client relationship that follows carries a strong contribution margin, and a cheap first engagement can be the wrong one if it trains the client to expect discounts. The all-in cost of a service is most useful when it is read alongside what the client is worth over time.

What to do with the number

A chapter of the 2020 book on a fast-growing bookkeeping firm describes the common pattern in boutique delivery: expertise converted into a methodology, staff trained to use it, and, more often than not, expensive labor and very little automation, which makes the service expensive and tough to sell. Its screening questions include whether less expensive labor could deliver the work. The true cost answer describes the same choice in the current era: automate, shift to AI, move offshore, push to a more junior role, or keep senior.

As an inference, use the all-in number to choose between five moves: change the price, tighten the scope, change the staffing mix, automate part of the work, or stop selling the offer to clients for whom it cannot be delivered profitably. The margin target answer on this site covers how those moves connect to the firm-wide numbers a buyer will look at.

Who should own it

The engagement management essay assigns contribution margin to the person running the engagement, and says that if you measure activity you will get busywork. The finance essay in the newer book describes finance in boutique firms as having reported the past rather than translating numbers into decisions. As an inference, give delivery leaders contribution margin as their scoreboard and give whoever owns finance the full-cost view, so that one person is accountable for how the work runs and another for whether the offer is worth selling at all.

What we do not prescribe

Collective 54 publishes no overhead allocation method, no rate for pricing partner time, no standard for assigning pursuit cost and no target contribution margin by service. The published positions are contribution margin as defined in the engagement management essay with overhead and sales and marketing excluded, scope creep treated as client service as the common source of lost margin, partners paid at the market rate for the role, new clients as expensive to acquire and existing clients as cheaper, cash over EBITDA, aging receivables as poor fee quality, and client lifetime value as total contribution margin.

When this answer flips

If the firm sells mostly fixed-fee work, leakage lands entirely on you, so the delivery side of the all-in number matters more than the pursuit side.

If most revenue comes from long-standing clients, the cost of winning the work is small and the larger risks are scope drift and slow payment.

And if the founder is still delivering much of the work, as an inference, price that time at market before drawing any conclusion about which services are profitable, because the answer often changes.

The short answer

All-in cost is the per-project delivery cost plus what leaks around it. Keep two numbers. Contribution margin, as the engagement management essay defines it, is fees collected less direct labor, direct delivery tools and AI costs, and subcontractors, excluding overhead and sales and marketing; it tells you whether the work earns. Full cost adds allocated overhead and the cost of winning the work; it tells you whether the offer adds to EBITDA. Then count what plans miss: margin lost to scope drift, rework and missed handoffs; founder and partner hours priced at the market rate for the role; pursuit cost, which the 2020 book says is high for new clients and much lower for existing ones; and the cost of waiting for cash. Read the result over the life of the client, and use it to change price, scope, staffing or automation.