The verdict in three sentences
For a network of 6 staffing branches placing 450 temps a week, whether in Lyon or Toronto, off-the-shelf software remains the sensible base for payroll and statutory filings, at 200 to 500 EUR per branch per month (about 215 to 540 USD). The real gains sit around it: online timesheets, e-signed assignment contracts and a client portal, which cost 25,000 to 50,000 EUR excl. tax when built custom. Properly scoped, these modules close payroll 2 days earlier and cut billing errors by roughly 70%.
What tooling for a branch network really costs in 2026
Staffing combines three flows that do not tolerate approximation: the assignment contract (which must reach the temp within 2 working days under French rules, and before start under most North American client policies), the timesheet approved by the client company, then payroll and invoicing. Specialist vendors cover the regulatory core well. They cover far less well the collection of hours across 120 different clients, often still on paper or by email.
| Item | Off-the-shelf software | Kolonell custom build | 2026 order of magnitude |
|---|---|---|---|
| Payroll, filings, contracts licence | 200 to 500 EUR / branch / month | Not recommended | 14,400 to 36,000 EUR / year for 6 branches |
| Online timesheets (temp + client) | Often an add-on, 1 to 3 EUR / timesheet | 9,000 to 16,000 EUR excl. tax | 450 timesheets / week |
| E-signature of assignment contracts | 0.80 to 2 EUR / signature | 4,000 to 8,000 EUR + 0.30 to 0.60 EUR / signature | 900 signatures / week (contract + amendment) |
| Client portal (orders, approval, invoices) | Rarely customisable | 8,000 to 18,000 EUR excl. tax | 120 client companies |
| Connectors to the payroll software | Included if same vendor | 4,000 to 8,000 EUR excl. tax | API or structured export |
| Maintenance and hosting | Included in licence | 400 to 900 EUR / month | Local hosting, privacy compliant |
The logic is simple: keep the vendor for what is regulated and updated every year (rates, filings, end-of-assignment allowances), and build custom what touches the experience of your clients and your temps. That is where generalist vendors are most rigid.
Where hours and money leak today
In a network of this size, most losses concentrate on Monday and Tuesday: chasing missing timesheets, re-keying, correcting overtime or night premiums, then issuing credit notes after client disputes.
| Indicator | Before (paper, email, Excel) | After custom modules | Gap |
|---|---|---|---|
| Timesheets received by Monday noon | 55 to 65% | 92 to 96% | +35 points |
| Re-keying time per branch | 10 to 14 h / week | 2 to 3 h / week | about -9 h |
| Weekly payroll close | Wednesday evening | Monday evening | 2 days saved |
| Billing errors (credit notes) | 4 to 6% of invoices | 1 to 1.8% | -70% |
| Assignment contract signature time | 1 to 3 days | Under 4 h | Compliance secured |
| Average client payment time | 52 days | 44 to 46 days | -6 to 8 days |
The last line is often underestimated. An invoice that is right first time, backed by the timesheet the client signed in the portal, is disputed far less. On weekly revenue of 270,000 EUR, gaining 7 days of payment time durably frees about 270,000 EUR of cash.
How to scope the project without breaking what works
The project splits into three lots that can be delivered separately, 10 to 16 weeks in total:
- Lot 1, timesheets (5 to 6 weeks): mobile web app for the temp, one-click approval by the client manager, automatic premium calculation according to each client agreement.
- Lot 2, assignment contracts (3 to 4 weeks): generation from the payroll software, SMS delivery, e-signature, time-stamped archiving.
- Lot 3, client portal (4 to 6 weeks): assignment orders, placement tracking, download of invoices and timesheets.
Each lot plugs into your payroll software through an API or structured export. No re-keying, no duplicate temp database.
Mini case study
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Nathalie runs a network of 6 staffing branches specialised in logistics and construction around Lyon. She pays 380 EUR per branch per month for her payroll software, i.e. 27,360 EUR a year. Her recruiters spend an average of 12 hours a week per branch chasing and re-keying timesheets.
She invests 38,000 EUR excl. tax in the three lots, plus 650 EUR a month for maintenance. Time saved: 9 hours per branch per week, i.e. 2,592 hours a year over 47 working weeks, valued at 28 EUR loaded cost: about 72,600 EUR. Credit notes fall from 5% to 1.5% of invoices, on 270,000 EUR billed per week, i.e. about 444,000 EUR of credit notes avoided per year, a large share of which would have been lost as commercial discounts. Counting only the time saved, the project pays back in under 7 months. A Toronto agency with the same volume lands on very similar figures in USD.
FAQ
Should we replace our staffing payroll software?
In most cases, no. Off-the-shelf software at 200 to 500 EUR per branch per month handles payroll and filings correctly, and the custom layer plugs into it. Replace it only if it offers neither an API nor a usable export.
Is an e-signed assignment contract valid?
Yes, a simple or advanced electronic signature compliant with eIDAS in Europe, or with ESIGN and provincial e-commerce acts in North America, is recognised. The unit cost drops to 0.30 to 0.60 EUR with a trust provider, versus 0.80 to 2 EUR in some built-in modules.
How long until clients actually use the portal?
Allow 6 to 10 weeks to reach 80% of timesheets approved online. The most effective lever is tying invoicing to the portal-approved timesheet from month 2.
Will temps really log their hours?
Yes, if logging takes under a minute on a phone with no app to install. Networks that tie logging to advance payments reach over 90% complete timesheets.
Where is the data hosted?
In-country, with a certified host, access logging and purging according to your retention rules. Hosting is included in the 400 to 900 EUR monthly maintenance.
Let's scope your project. Timesheets, assignment contracts and a client portal for your branch network: 3 lots, indicative budget of 25,000 to 50,000 EUR excl. tax, delivery in 10 to 16 weeks. 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.
