# Analyse costs by site, job or department

> In Weplanify, the cost analysis adds up the month's salaries, day labourers and expenses, then splits them by site, by job or by department, month by month.

- Product: Weplanify (https://weplanify.io)
- Section: Costs & expenses
- Web page: https://weplanify.io/docs/couts.analyse?lang=en
- Other language: https://weplanify.io/docs/couts.analyse.md
- Last updated: 2026-09-29

In Weplanify, the **Cost analysis** screen (**Payroll and costs** menu) brings together three cost families: **Salaries** (from payslips), **Day labourers** and **Company expenses**, compared with the previous month.

![The September cost analysis: salaries, day labourers, expenses, total cost, share of each family and breakdown by site](https://firebasestorage.googleapis.com/v0/b/weplanify/o/docs%2Fcouts%2Fmaj-2026-09-28%2Fco-analyse-2-df459576.webp?alt=media&token=7f2bd01d-87d0-4a47-a05d-0082bf12faea)

## Steps

1. Open **Payroll and costs → Cost analysis**, or click **See costs** on the [dashboard Costs card](https://weplanify.io/docs/tableau-de-bord.couts?lang=en).
2. Pick the month.
3. Click the **Salaries**, **Day labourers** and **Company expenses** chips to include or remove a family.
4. Choose the axis: **By site**, **By job** or **By department**. The bars give the ranking; the table below gives every line, with a search.
5. The filter button, next to the month, narrows the analysis to a group of people: department, site, job, group, manager or contract type.

## Good to know

- Salaries only show once the [month's payslips are computed](https://weplanify.io/docs/paie.bulletins?lang=en). An employee's salary is split between their sites and jobs according to their scheduled hours; by department, it counts in full.
- Day labourers come from the [Day labourers module](https://weplanify.io/docs/journaliers.cout?lang=en); a repaid expense claim counts as an expense, not as salary.
- With a filter, company expenses with no employee concerned are left out (see [filter by employee](https://weplanify.io/docs/demarrage.filtres-employes?lang=en)).
- The screen is reserved for people with payroll access.

## Related guides

- [The dashboard Costs card](https://weplanify.io/docs/tableau-de-bord.couts?lang=en) — In Weplanify, the dashboard Costs card gives the payroll's employer cost, the change from the previous period, what explains it and the cost of each site.
- [Check, approve and print payslips](https://weplanify.io/docs/paie.bulletins?lang=en) — In Weplanify, the Payslips step shows the month's payslips: totals, each person's gross and net, preview, recompute, approval and printing in one PDF.
- [The cost of day labour](https://weplanify.io/docs/journaliers.cout?lang=en) — In Weplanify, the day labourers' History tab gives the month's cash out by site and by job, compared with the previous month, and every day.
- [Filter a list by site, group, job or contract](https://weplanify.io/docs/demarrage.filtres-employes?lang=en) — In Weplanify, the same filter bar narrows a list or a report down to a group of people: site, department, job, group, manager or contract type.
- [Follow the company's expenses](https://weplanify.io/docs/couts?lang=en) — In Weplanify, the Expenses screen gathers purchases paid by the company and costs advanced by employees: to approve, to reimburse and to pay.
- [Declare your clients](https://weplanify.io/docs/configuration.clients?lang=en) — In Weplanify, create your clients to attach to them the sites where your teams work for them, with their contact and their accounting account.