"The firm bills R$ 80k/month but the partner can't take consistent owner's pay." That sentence sums up 70% of Brazilian architecture firms. The problem is rarely revenue. It is the real margin, how much is left after paying everyone, every cost and every tax.
Margin is not profit: the confusion that kills firms
There are three concepts architects mix up, and each mixing mistake costs dearly:
- Gross margin, the sale price minus the project's direct cost (allocated labor, printing, specific subcontractors). Does not factor in the firm's fixed cost.
- Operating margin, gross margin minus the allocation of the firm's fixed cost (rent, software, non-allocated salaries). This is the project's real margin.
- Net profit, operating margin minus taxes. It is the money that actually reaches the cash.
When an architect says "this project had a 50% margin", they are almost always talking about gross margin. The operating margin of that same project can be 20%. And the net profit, 8%. The difference is not a detail, it is the difference between a firm that grows and a firm that survives.
Real benchmarks by firm size
The numbers below come from a healthy operation (one that pays consistent owner's pay, has reserves and invests in growth). Use them to calibrate where you stand.
| Size | Gross margin | Operating margin | Net profit |
|---|---|---|---|
| Solo (freelancer) | 55–70% | 35–50% | 25–35% |
| Small (2–4 people) | 45–60% | 28–40% | 18–28% |
| Mid (5–10) | 40–55% | 22–35% | 14–22% |
| Large (10+) | 35–48% | 18–28% | 10–18% |
Notice the expected effect: the larger the firm, the smaller the margin per project, but the larger the volume. A solo firm needs a high margin because volume is low. A large firm accepts a smaller margin because volume makes up for it, but it requires process to avoid leaks.
Stop discovering the loss at year's end
Limify shows gross, operating and net margin per project as you log costs and hours. You find leaks within the week, not at December's accounting close.
Try it freeThe 4 most common margin leaks
Leak 1: Unbilled hours
The extra meeting that became routine. The "quick" revision that took 8h. The site visit that wasn't in the contract. Every unbilled hour is margin burned. In a typical firm, this represents 15–25% of lost margin. Solution: a contract with a clear scope of revisions/visits and an extra charge for any addition.
Leak 2: Unbudgeted rework
The client changed their mind 4 times. You redid 3 versions of the plan. The contract allowed for 2 revisions. You did 7 but only billed 2. The 5 extras are direct loss. Solution: out-of-scope revisions become mandatory extra hours, formalized by email before delivery.
Leak 3: Unallocated sales cost
You spend 8h preparing a proposal. The client doesn't sign. Multiply that by 5 proposals/month = 40h of lost sales effort. These 40h are expensive and nobody allocated them to the price of the projects that closed. Solution: build the sales cost into the target margin (usually 5–10% additional).
Leak 4: Client delay
A project meant to last 3 months lasted 6 because the client went missing twice. Your team blocked their schedule during that period and lost the window for other projects. Solution: a contract with a pause clause for client inactivity, after 30 days without a response, the project leaves the queue or returns with an extra-hour restart fee.
How to measure margin per project
Without measuring there's no way to improve. The minimum measurement per project:
- Project revenue, the total contracted value.
- Real allocated hours, time tracking per team member (not an estimate).
- Direct cost, hours × billable hour rate + attributable expenses (printing, travel, subcontractors).
- Fixed cost allocation, % of the firm's monthly fixed cost allocated to the project (proportional to hours).
- Taxes, the Simples Nacional rate on revenue.
Operating margin = (Revenue − Direct cost − Fixed allocation) ÷ Revenue. Net profit = (Operating margin − Taxes) ÷ Revenue. Run this calculation on every project closed in the last 6 months. You will find that two or three ran a silent loss.
How to protect margin in operations
Margin is fragile. To protect it:
- Set the target margin before the proposal, not after. Margin is an input, not an output.
- Mandatory time tracking for every team member, on every project. Without it, you have no data.
- Monthly margin review per project, don't wait for the close. If it's leaking, adjust the scope right away.
- Extra hours billed immediately, not accumulated until the end of the project. A client paying R$ 800 in extra hours month after month thinks twice before asking for another revision.
- Annual adjustment without mercy. A firm that does not adjust loses 6–10% of real margin per year to inflation alone.
A healthy margin is the result of process, not luck. The firms with consistent 30%+ operating margin have one thing in common: they measured everything, found where it was leaking and plugged the drain. The rest keep billing well and breaking down slowly.
Next read: Cash flow for an architecture firm, why a firm that "bills well" still goes under.