The verdict in three sentences
For a transport SME running 20 to 100 vehicles, a SaaS TMS (EUR 25-70/vehicle/month) is enough while your routes stay standard, but it locks you into its data model. A custom TMS (EUR 50,000-130,000) pays off once planning, proof of delivery and accounting integration carry your margin. The real prize isn't the software price: it's the 8-15% of empty kilometers that route optimization gives back.
SaaS or custom: making the right call
SaaS starts fast and spreads the cost, but bills per vehicle and per module. Custom demands an upfront investment yet makes you owner of the business logic (route constraints, carrier pricing, client EDI). In 2026 the tipping point is usually beyond 35-40 vehicles, or when two vendor tools refuse to talk to each other.
| Criterion | SaaS TMS | Custom TMS |
|---|---|---|
| Entry cost | EUR 0-8,000 (setup) | EUR 50,000-130,000 |
| Monthly cost | EUR 25-70/vehicle | Hosting EUR 300-900/mo |
| Time to launch | 3-8 weeks | 5-8 months |
| Driver app included | Often an add-on | Custom, built in |
| Route optimization | Vendor standard | Your own rules |
| Accounting/EDI integration | Limited connectors | Unlimited |
| Code ownership | No | Yes |
| Annual maintenance | In the subscription | 15-20% of build |
3-year TCO for a 40-vehicle fleet
Same scope: planning, driver app, electronic proof of delivery (ePOD), accounting interface. Figures are 2026 orders of magnitude, excluding operational gains.
| Line item | SaaS (EUR 45/veh.) | Custom |
|---|---|---|
| License / initial build | EUR 0 | EUR 90,000 |
| Subscription 40 vehicles / yr | EUR 21,600 | EUR 0 |
| Hosting + monitoring / yr | included | EUR 7,200 |
| Maintenance / changes / yr | included | EUR 13,500 |
| Driver app (option) / yr | EUR 4,800 | included |
| 3-year total | EUR 79,200 | EUR 152,100 |
Over three years SaaS stays cheaper on cash. But beyond 60-70 vehicles the linear subscription overtakes custom, and above all custom captures operational gains that SaaS caps.
Mini case study
Sofiane, operations director of a parcel-delivery SME in Lyon, runs 40 vehicles covering 3.2M km/year at a fully loaded EUR 1.15/km. His empty-run rate is 22%. A TMS with route optimization brings it to 12%, recovering 10 points: 3.2M x 10% = 320,000 km, x EUR 1.15 = EUR 368,000 of avoided kilometer cost (partly, say 30% net captured, ~EUR 110,000/year). Even amortizing a EUR 90,000 custom build over 3 years (EUR 30,000/yr) plus EUR 20,700 in running costs, the net return exceeds EUR 60,000 in the first full year.
FAQ
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What does a custom TMS really cost in 2026?
Expect EUR 50,000-130,000 depending on scope (planning only vs planning + ePOD + EDI + driver app). A first operational module often ships around EUR 55,000-70,000.
Isn't SaaS always simpler?
Yes to start and under 35 vehicles. Beyond that, per-vehicle billing and accounting/EDI integration limits erode the edge, especially if your routing rules are specific.
What real gain on empty kilometers?
Between 8 and 15% depending on starting data quality and route density. On an average fleet that is often EUR 60,000-120,000/year in avoided cost.
How long to deploy?
5-8 months for a custom build with driver app and accounting integration; 3-8 weeks for a configured SaaS. Driver change management is the real risk factor.
Can I keep my accounting software?
Yes. A custom TMS interfaces with Sage, Cegid or your tool via API/EDI, which SaaS platforms don't always allow natively.
Let's scope your project. Tell us your vehicle count, your routing constraints and your existing tools (accounting, EDI): we'll price the module that pays off first, with an indicative budget of EUR 55,000-120,000. 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.


