The guide
Guide: project budget and project profitability
Project profitability is the central question for any company that sells engagements. It is built from the proposal onwards, with a realistic project budget, then defended every week by comparing that budget with actuals. Here is how to structure this tracking in a Swiss SME.
How do you build a realistic project budget?
A realistic project budget starts from the breakdown of work. List the phases or work packages, estimate the hours per profile for each, then value them at full internal cost. Add subcontracting, materials, travel and a contingency proportionate to the project’s risk.
Lean on your past projects: how many hours did a comparable phase actually take, and by how much were estimates exceeded? Engineering and architecture offices can align with SIA phases, agencies with their usual work packages. The cost budget is then compared with the sales price to set the target margin. In Numezis, the budget is entered by phase and by cost line, and the original budget is kept even after revision, so you can measure the quality of your estimates.
How do you measure project profitability?
Project profitability is measured by margin: recognised revenue minus full cost. Two indicators complement each other. Margin to date compares what has been delivered and recognised so far; forecast margin at completion projects the final result, taking the remaining work into account.
To be reliable, cost must include every hour, even non-billable ones, valued at internal cost, as well as expenses and subcontracting. Revenue must follow a consistent recognition method. Then compare margin across projects, clients, teams and service types: you will often discover that a loyal, high-volume client is in fact barely profitable, or that one type of engagement systematically exceeds its budget. Numezis computes these indicators continuously from the accounting entries.
What is a project’s estimate at completion?
The estimate at completion answers a simple question: how much will this project have cost once it is finished? It adds the actual cost incurred, the commitments already made with suppliers and the estimated remaining work.
Remaining work can be estimated by the project manager, phase by phase, or extrapolated from the observed pace: if a phase has been consuming 20 % more than planned from the start, it is prudent to apply the same trend to the rest. Compared with the sales price, the estimate gives the likely final margin. It is the indicator that lets you act: negotiate a change order, reduce scope, reassign the team. Numezis updates this estimate with every new entry and alerts you when it drops below your target.
What should you do when a project goes over budget?
A budget overrun is not inevitable if it is detected early. First step: understand the cause. Out-of-scope work requested by the client, an overly optimistic estimate, a technical problem or a change of team do not call for the same response.
If the client asked for additional services, document them and propose a costed change order before going further. If the estimate was too low, revise the budget with a reason, inform management and use the lesson for the next proposals. If the problem is internal, reassign the effort or reduce the remaining work. In Numezis, the overrun alert arrives with the phase concerned, the agent prepares a variance analysis and a proposal, and the budget revision goes through a traced approval.
How do you link the project budget to cost accounting?
Project budget tracking kept in a spreadsheet next to the accounts always ends up diverging. The solution is to attach every accounting entry to a project through an analytical dimension: salaries allocated according to hours, supplier invoices, expenses, revenue.
That way, the total of project margins reconciles with the company’s result, and every project figure can be justified to an auditor. The annual accounts prepared under CO art. 957 to 960 and the project reports rest on the same entries. Numezis allocates the entries coming from time, expenses, purchases and invoices automatically, and management’s steering view aggregates the margins of every project in real time.