Project and cost-centre expenses: what each job actually cost
A project's margin leaks through small expenses allocated to the wrong place or to nothing at all. 4expenses asks for the cost centre on every report line, keeps committed and spent amounts apart on the project budget, and alerts at the thresholds you set while an overrun can still be corrected.
What has to be right for the margin to hold
Cost centre on every line
Allocation happens per line, not per report. Within one trip, accommodation can go to one project and travel to another, instead of the whole report loading the first project in the list.
Project budget consumed in real time
A project's allocated budget draws down on each approval rather than at month-end close. An overrun becomes visible while it can still be corrected.
Budget alert thresholds
A budget keeps committed, pending and spent amounts apart, and alerts fire at the thresholds you configure — 80% and exhaustion by default — rather than once it is already over.
Hierarchical cost-centre structure
Cost centres are organised in a hierarchy, each with an owner, so a project can be read on its own and rolled up into the department it belongs to.
Reporting per project, not just per company
Expenses can be read by project, by category and by period, so you can see where the budget went: travel, accommodation, subcontractors.
The cost centre travels into the export
The allocation reaches accounting together with the line, so the internal project report and the books start from the same data.
Project allocation is only useful when it happens at the moment of the expense, by the person who knows what they paid for. Reconstructed at month-end by someone else it becomes an approximate split that looks fine in a report and supports no decision.
Frequently asked questions about project expenses
The tax and legal information on this page was verified on 30 July 2026 and is provided for information only — it is not tax advice. Legislation changes and its application depends on your company's specific situation: confirm with your accountant or adviser before acting on it.
See also
See the real cost of each project, not the company average
Cost centre per line, budgets with committed and spent amounts, alerts at the thresholds you set.