The verdict in three sentences
For an Amsterdam SMB of 10 to 40 users with standard processes, off-the-shelf almost always wins over 3 years thanks to a low entry ticket. As soon as process specificity exceeds 40 % (workflows no standard module covers), custom catches up and then overtakes on both cost and value. The real question is not "which is cheaper", but "how much customization will I pay every year on the off-the-shelf platform".
3-year TCO: off-the-shelf vs custom
Total cost of ownership (TCO) sums licences, integration, customizations, hosting and maintenance. Here is the 2026 order of magnitude for a business ERP project with 25 users.
| Line item (3 years, 25 users) | Off-the-shelf (EUR) | Custom (EUR) |
|---|---|---|
| Licences / subscription | 21,600 - 40,500 | 0 |
| Initial integration | 15,000 - 40,000 | 70,000 - 140,000 |
| Custom / specific modules | 12,000 - 35,000 | included |
| Hosting (3 years) | 3,600 - 9,000 | 5,400 - 12,000 |
| Maintenance (3 years) | 18,000 - 30,000 | 31,500 - 63,000 |
| 3-year total | 90,000 - 160,000 | 120,000 - 200,000 |
Roughly, off-the-shelf starts 25 to 30 % cheaper over 3 years at standard scope. The gap narrows from year 4, because subscription licences run indefinitely while the custom build only carries its maintenance.
The tipping point: users x specificity
Two variables tilt the balance. Off-the-shelf pricing is linear (per user); custom is a fixed cost amortized over time.
| Scenario | Users | Process specificity | 2026 pick |
|---|---|---|---|
| Standard distribution | 10 | Low (< 20 %) | Off-the-shelf |
| Multi-warehouse trade | 25 | Medium (30 %) | Off-the-shelf + modules |
| Precision manufacturing | 40 | High (50 %) | Hybrid / custom |
| Unique patented process | 60 | Very high (> 60 %) | Custom |
| Reselling the software (IP) | 30 | High + IP | Custom |
Simple rule: beyond 40 users OR specificity above 45 %, custom becomes defensible on both cost and agility. Below that, off-the-shelf stays the sensible bet.
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
Mini case study
Bram, CFO of a 45-person machining SMB in Amsterdam, weighs both routes. Off-the-shelf costs him EUR 33,000 in licences over 3 years (30 users x ~EUR 30/month), plus EUR 28,000 integration and EUR 24,000 of custom modules for his parcel-level quality tracking, so ~EUR 101,000. Custom is quoted at EUR 115,000 + EUR 17,000/year maintenance, so ~EUR 166,000 over 3 years. Off-the-shelf wins over 3 years (-EUR 65,000) but Bram decides differently: his 3 quality processes are his competitive edge, hard to model in a standard module, and he targets 90 users within 5 years. On that horizon, custom moves back ahead around year 5. Decision: start hybrid (off-the-shelf core + custom quality brick), reassess at 3 years.
FAQ
Is the free community edition enough? Rarely for an SMB: community editions often lack full accounting and support, and many useful modules sit in the paid tier (EUR 24-45/user/month in 2026). "Free" mostly hides integration cost.
What does an integrator cost in the Netherlands? Expect a day rate of EUR 650 to 950 in 2026, with 25 to 60 days for an SMB rollout, i.e. EUR 15,000 to 40,000 of integration excluding licences.
Is custom riskier? The risk is governance, not tech. A project framed in short sprints (2-week iterations, continuous acceptance) with maintenance at 15 %/year controls risk as well as a poorly-scoped off-the-shelf rollout.
What if I switch integrators? Your data stays, but custom modules built by the previous integrator can be hard to take over. Demand the source code of custom work and documentation at delivery.
Can I migrate from off-the-shelf to custom later? Yes, by recovering the PostgreSQL database. Budget EUR 8,000 to 20,000 of data migration and a one- to two-month dual-run phase.
Let's scope your project. Tell us your processes, target user count and indicative budget: we cost the off-the-shelf, custom and hybrid options side by side. 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.
