The verdict in three sentences
An independent temp staffing agency with 4 branches placing 350 temps a week often spends more than 40 minutes of admin per temp per week across contract, DPAE, timesheet, payroll and invoice. Custom temp staffing software costs between 45,000 and 95,000 EUR excl. VAT in Toulouse, ships in 5 months and automates the chain from contract to weekly invoice. The gain shows up as admin roles absorbed while volume grows and payroll errors avoided.
The admin chain to automate
Each assignment generates a supply contract with the client, an assignment contract with the temp, a DPAE (France's mandatory pre-hire declaration) sent to Urssaf before the start, a weekly timesheet, a payslip and an invoice. With premiums (overtime, night, Sunday, meal allowances, travel allowances) that vary by client and collective agreement, re-keying is the first source of errors.
| Module | Function | 2026 indicative budget (excl. VAT) |
|---|---|---|
| Temp database | Skills, certifications (CACES, electrical), availability, documents | 6,000 to 12,000 EUR |
| Contracts and DPAE | Both contracts generated, e-signature, DPAE via Urssaf API | 9,000 to 18,000 EUR |
| Online timesheets | Entry by the temp, approval by the client on mobile | 8,000 to 16,000 EUR |
| Premiums engine | Rules per client and agreement, allowances, bonuses | 7,000 to 17,000 EUR |
| Payroll export | Variables to the payroll software, DSN prepared | 5,000 to 11,000 EUR |
| Weekly invoicing | Client mark-up rate, PDF invoices, reminders | 5,000 to 11,000 EUR |
| Reporting | Margin per assignment, revenue per branch, end-of-assignment alerts | 5,000 to 10,000 EUR |
2026 order of magnitude: 45,000 EUR for a core of contracts, DPAE, timesheets and payroll export, up to 95,000 EUR with a full premiums engine, a temp app and a client portal. Hosting and maintenance: 9,000 to 15,000 EUR a year.
Admin time and payroll errors: before and after
For an independent agency, a payroll error costs twice: in correction (supplementary payslip, advance) and in loyalty, since an underpaid temp moves to a competitor. On the client side, a disputed invoice delays collection by several weeks.
| Indicator | Before (separate tools and re-keying) | After software (12 months) |
|---|---|---|
| Admin time per temp per week | 42 min | 12 to 15 min |
| Timesheets received by Monday noon | 55% | 92% |
| Payroll errors (corrected payslips) | 4.5% | 0.8% to 1% |
| DPAE sent late | 3% of assignments | 0% |
| Invoices disputed by clients | 6% | 1.5% |
| Time from week end to invoice | 6 days | 1 day |
| Average client payment time (DSO) | 52 days | 41 days |
The timesheet approved online by the client is the pivot: an approved hour automatically becomes a payroll line and an invoice line, with no re-keying and no room for dispute.
5-month plan
Month 1: inventory of the premium rules for the top 30 to 50 clients, often the longest part. Month 2: temp database, contracts and DPAE. Month 3: timesheets and premiums engine. Month 4: payroll export and invoicing, run in parallel with the old system for 4 weeks. Month 5: rollout across the 4 branches and recruiter training.
Mini case study
Sophie, manager of an independent temp agency in Toulouse with 4 branches, places 350 temps a week over 47 weeks. She invests 78,000 EUR excl. VAT plus 12,000 EUR a year for maintenance.
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- Time saved: 28 min x 350 x 47 = about 7,680 hours a year, or 4.5 admin FTEs. Valued at 38,000 EUR fully loaded, that is 171,000 EUR, mostly realised by absorbing growth without hiring.
- Payroll errors: from 4.5% to 1%, about 575 fewer corrected payslips at 45 EUR handling cost: 26,000 EUR.
- DSO cut by 11 days on 9 million EUR of revenue: about 270,000 EUR of cash freed.
Even counting only half the time saved, the project pays back in under 12 months.
FAQ
How much does custom temp staffing software cost in 2026?
Between 45,000 and 95,000 EUR excl. VAT in Toulouse depending on the premiums engine and portals. Maintenance and hosting run 9,000 to 15,000 EUR a year.
Can the DPAE be sent automatically?
Yes, through the Urssaf API, as soon as the assignment contract is approved. The receipt is archived in the temp's file within seconds.
Do clients really approve hours online?
With one-click mobile approval and an SMS reminder on Monday morning, over 90% of timesheets arrive before noon. Approved timesheets are almost never disputed.
Do we need to change payroll software?
No, the software exports payroll variables to your current tool (Silae, Sage or other). The format is validated with your payroll manager during the 4-week parallel run.
How long to switch all 4 branches?
About 5 months, including 4 weeks of parallel running. Switching at the start of a month simplifies payroll.
Let's scope your project. Tell us your number of branches, temps placed per week and current tools, and we will price a scope between 45,000 and 95,000 EUR with a 5-month plan. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
