The verdict in three sentences
For a rental company with 150 vehicles, custom management software costs 9,250 to 23,150 EUR excluding VAT in 2026 (100,000 to 250,000 MAD), with fleet planning, digital contracts, photo check-in and online booking. A rental SaaS at 140 to 370 EUR per month remains cheaper over 5 years if your processes are standard. Custom software pays off when direct bookings, long-term corporate contracts and accounting integration carry a large share of revenue, with a timeline of 3 to 5 months.
The modules of custom rental software
On paper, a 150-car rental firm loses time at every step: 20 to 30 minutes per contract at the counter, poorly tracked deposits, missed oil changes and damage disputes for lack of timestamped photos. The software must cover the full cycle, from booking to vehicle return.
| Module | Scope | 2026 range (EUR excl. VAT) |
|---|---|---|
| Scoping | Workshops with counter staff, yard agents, accounting | 740 - 1,390 |
| Fleet planning | Availability by category and branch, drag and drop, transfers | 1,850 - 4,630 |
| Digital contracts | Automatic generation, tablet signature, archiving | 1,390 - 3,240 |
| Photo check-in and check-out | Agent mobile app, 8 to 12 timestamped photos, damage diagram | 1,390 - 3,700 |
| Deposits and payments | Card pre-authorisation, collections, refunds | 925 - 2,780 |
| Servicing and deadlines | Oil changes, insurance, motor tax, NCT, alerts | 925 - 2,315 |
| Online booking | Booking engine on your website, deposit payment | 1,390 - 3,700 |
| QA and training | Testing, data migration, staff training | 650 - 1,390 |
| Total | 9,250 - 23,150 |
E-signed contracts rely on the eIDAS framework, and customer data such as driving licences and ID documents falls under GDPR: the record of processing and the retention policy are part of the project.
Custom or SaaS: the five-year comparison
| Criterion | Rental SaaS | Custom software |
|---|---|---|
| Upfront cost | 0 to 925 EUR of setup | 9,250 - 23,150 EUR |
| Monthly cost | 140 - 370 EUR | 140 - 280 EUR for maintenance and hosting |
| Total cost over 5 years | 8,400 - 23,150 EUR | 17,650 - 39,950 EUR |
| Time to go live | 2 to 4 weeks | 3 to 5 months |
| Long-term corporate contracts | Often limited | Free billing rules |
| Direct booking on your website | Generic widget | Branded journey, no commission |
| Local accounting integration | CSV export | Direct entries in your accounting software |
| Data ownership | With the vendor | With you |
The maths often tips on direct booking. Aggregator platforms take 15 to 25% of the rental amount: on 40 bookings a month at 230 EUR, that is 1,390 to 2,315 EUR of monthly commissions. Winning back half of those bookings directly funds a good share of the project.
Operational gains to expect
| Indicator | On paper | With software | 2026 estimate |
|---|---|---|---|
| Contract time at the counter | 20 to 30 min | 6 to 8 min | -70% |
| Fleet utilisation rate | 60 to 65% | 68 to 72% | +5 to +8 points |
| Unbilled damage disputes | 8 to 12 per month | 2 to 3 per month | Timestamped photos |
| Overdue servicing | 15% of fleet | under 3% | Automatic alerts |
| Deposit refund time | 7 to 15 days | 24 to 72 h | Tracked per contract |
| Monthly accounting close | 3 days | 1 day | Automatic entries |
Mini case study
Ciaran, managing director of a 150-vehicle rental firm in Dublin, picks custom software at 16,670 EUR. Conservative assumption: planning adds 5 points of utilisation, so 150 x 0.05 x 30 days = 225 extra rental days per month at 28 EUR, which means 6,300 EUR of revenue and 2,520 EUR of margin at 40%. Timestamped photos allow 6 more damage claims per month to be recharged at 120 EUR on average, so 720 EUR. With about 3,240 EUR of monthly gains, the project pays back in just over 5 months.
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FAQ
Can we start with SaaS and move to custom later?
Yes, it is often the right path for fleets under 60 vehicles. Insist on a full export of your data (customers, contracts, history) so that migration costs no more than 925 to 1,850 EUR.
Does photo check-in work without signal?
Yes, the app stores photos on the phone and uploads them as soon as the connection returns. Expect 8 to 12 photos per vehicle, about 15 MB per inspection.
How do card deposits work?
A bank pre-authorisation blocks the amount, for example 460 EUR for a city car, without an actual charge. It is released on return or adjusted if damage is found.
Can the software handle several branches?
Yes, multi-branch planning and vehicle transfers add 1,390 to 2,780 EUR. It becomes useful as soon as a second branch, at the airport for example, shares the fleet.
How long until we are operational?
Allow 3 months for counter, planning and contracts, then 1 to 2 months for online booking and accounting integration. Switching over outside peak season avoids disrupting July and August.
Let's scope your project. Share your fleet size, number of branches and share of online bookings, and we will compare custom and SaaS with real numbers. 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.
