The verdict in three sentences
A Berlin HR consultancy needs a single tool linking engagements, time spent and billing, or it loses billable hours in spreadsheets. Two routes: a market PSA (Professional Services Automation, EUR 30 to 70 per user per month) or a custom tool (EUR 25,000 to 55,000) integrated with your payroll and CRM. Custom is justified as soon as your engagement models (fixed-fee, time-and-materials, success-based) fall outside vendors' standard framework.
Market PSA vs custom: the 2026 figures
A PSA covers a broad scope but imposes its workflows. Custom fits your HR engagement types (recruitment, RPO, transformation, training) and your billing rules.
| Criterion | Market PSA | Custom |
|---|---|---|
| Entry cost | EUR 1,000 to 4,000 setup | EUR 25,000 to 55,000 |
| Recurring cost | EUR 30 to 70/user/month | EUR 200 to 500/month |
| Annual cost (12 consultants) | EUR 4,320 to 10,080 | EUR 2,400 to 6,000 after build |
| Deployment time | 4 to 10 weeks | 3 to 6 months |
| Payroll/CRM integration | Standard connectors | Native, bespoke |
| Billing models | Predefined | Unlimited |
Over 4 years for 12 consultants, a PSA runs roughly EUR 18,000 to 44,000, while custom is EUR 35,000 to 79,000 upfront but with near-zero marginal cost as headcount grows.
The gains to model before deciding
The question is not the licence price but the revenue recovered. Here are the levers seen in Berlin HR consultancies in 2026.
| Lever | Typical gain | Financial translation |
|---|---|---|
| Reliable time entry | +12 % billing rate | +EUR 80-150K revenue/year for 12 consultants |
| No double entry | -2 days/month/consultant | ~340 h/year recovered |
| Progress billing | DSO -6 days | Faster cash |
| Visible margin per engagement | Loss-making work detected | +2 to 4 margin points |
| Automated chasing | -50 % late unpaid invoices | Fewer write-offs |
These 2026 orders of magnitude assume an average daily rate of EUR 900 to 1,400 and a 75 % utilisation rate.
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Mini case study
Sophie, head of a 12-consultant HR consultancy in central Berlin, finds her consultants only record 82 % of their truly billable hours. On EUR 2.3M revenue, lifting the billing rate to 92 % through smooth mobile time entry represents about EUR 250,000 of potential additional revenue (of which a realistic share of EUR 100,000 to 140,000). She invests EUR 42,000 in a custom tool integrated with payroll. Even capturing only a third of the theoretical gain in year one, the tool pays for itself within 12 months, then generates near-net revenue in following years.
FAQ
Isn't a standard PSA enough? For a firm with homogeneous engagements, yes. As soon as you mix time-and-materials, fixed-fee and success billing (common in RPO), generic PSAs force manual workarounds that recreate the lost time.
How long to connect payroll and CRM? Allow 3 to 6 weeks within a custom project of 3 to 6 months. A PSA's standard connectors are faster but coarser on HR rules.
What billing gain can I really expect? Firms that make time entry reliable gain on average +12 points of billing rate in 2026, often EUR 80,000 to 150,000 in revenue for 12 consultants.
Does custom scale with the firm? Yes: you own the code and add modules (staffing, forecasting, client portal) for EUR 5,000 to 12,000 each, with no per-head licence surcharge.
What annual maintenance budget? Between EUR 2,400 and 6,000 per year for hosting, fixes and minor evolutions of a custom tool.
Let's scope your project. Tell us your engagement types, your headcount and your payroll/CRM tools: we will quote an engagement-tracking + billing tool with an indicative budget and timeline. 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.

