The verdict in three sentences
For a network of 6 staffing branches, an off-the-shelf staffing suite remains the right choice as long as your processes fit its model: budget EUR 100 to 200 (USD 110 to 220) per user per month. Once you handle specifics (construction, night-shift logistics, negotiated client markups, field timesheets), custom software at EUR 50,000 to 120,000 (USD 55,000 to 130,000) pays off within 24 to 36 months. The real gain is measured in administrative days recovered: about 2 days per branch per month on assignment contracts and temp payroll preparation.
Off-the-shelf or custom: the 2026 cost comparison
The staffing market is covered by several specialized suites (ATS, front office, payroll, billing). They handle onboarding declarations, assignment contracts, payroll and client invoicing. Their limits: rigid configuration and costs that climb with each user.
| Criterion | Staffing suite | Custom build |
|---|---|---|
| Entry cost | EUR 5,000 to 15,000 setup | EUR 50,000 to 120,000 |
| Recurring cost (25 users) | EUR 30,000 to 60,000 per year | EUR 6,000 to 15,000 per year (hosting, maintenance) |
| Deployment time | 2 to 4 months | 5 to 8 months |
| Fit with business processes | Limited configuration | Full |
| Code and data ownership | Vendor | Your company |
| 5-year total cost | EUR 155,000 to 315,000 | EUR 80,000 to 195,000 |
2026 order of magnitude: above 20 users, custom software is usually cheaper over 5 years, provided the initial scope is tightly defined. In New York, local agency rates run roughly 20 to 40 % higher than these benchmarks.
The modules that save time
Useful staffing software is more than a candidate database. The priority modules are those that eliminate re-keying between the branch, the client and payroll.
| Module | Indicative custom budget | Measured gain per branch |
|---|---|---|
| Assignment contracts + e-signature | EUR 10,000 to 20,000 | 4 to 6 hours per month |
| Automated hiring declaration (I-9/E-Verify in the US, DPAE in France) | EUR 5,000 to 10,000 | 2 hours per month, zero misses |
| Mobile timesheets approved by the client | EUR 12,000 to 25,000 | 5 to 7 hours per month |
| Temp payroll export (overtime, allowances, bonuses) | EUR 8,000 to 18,000 | 3 to 4 hours per month |
| Client invoicing with markups | EUR 8,000 to 15,000 | 2 to 3 hours per month |
| Worker portal (documents, availability) | EUR 7,000 to 15,000 | Fewer inbound calls |
Electronic signature is essential: in France, the assignment contract must reach the worker within two business days, and in the US, e-signatures are valid under the ESIGN Act. A paper workflow loses days and creates compliance exposure.
How to scope the project without overruns
Start with a phase 1 limited to contracts, onboarding declarations and timesheets, around EUR 30,000 to 50,000. Payroll and invoicing come in phase 2, connected to your existing payroll system by export or API. Reserve 15 % of the budget for data migration (workers, clients, markups) and recruiter training.
Mini case study
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Julien runs a network of 6 staffing branches with 24 users. His current suite costs EUR 150 per user per month, or EUR 43,200 per year. The custom project is quoted at EUR 85,000 plus EUR 10,000 per year in maintenance. Time saved: 2 days per branch per month, or 144 days per year, valued at EUR 250 loaded cost per day: EUR 36,000 per year. Total annual savings: 43,200 - 10,000 + 36,000 = EUR 69,200. Payback: about 15 months.
FAQ
How much does custom staffing software cost in 2026?
Budget EUR 50,000 to 120,000 (USD 55,000 to 130,000) depending on modules. A first phase covering contracts, declarations and timesheets starts around EUR 30,000.
Are e-signed assignment contracts legally valid?
Yes, eIDAS-compliant signatures in Europe and ESIGN-compliant signatures in the US carry the same weight as handwritten ones. They help meet the 2-business-day delivery rule in France.
Can we keep our current payroll software?
Yes, the custom tool generates a payroll variables export (hours, overtime, allowances, bonuses) compatible with your system. This connector usually costs EUR 5,000 to 12,000.
How long until we are operational?
Phase 1 ships in 3 to 4 months, the full platform in 5 to 8 months. A 4-week pilot in one branch limits risk.
Who hosts worker data?
Compliant hosting (GDPR in the EU, SOC 2 providers in the US) costs EUR 100 to 400 per month. The data belongs to you and can be exported at any time.
Let's scope your project. Send us your number of branches, users and priority modules: we will quote a phase 1 between EUR 30,000 and 50,000 deliverable in 4 months. 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.
