Custom Business Platform Cost (2026)

The verdict in three sentences

A custom business platform sits between 60,000 and 180,000 EUR (excl. tax) in 2026, depending on the number of modules and depth of IT-system integration. Custom is justified when your processes are your competitive edge and no off-the-shelf software fits them without costly compromises. The profitability case isn't about price but about hours saved, errors eliminated and data finally centralized.

What drives the budget

The price of a business platform depends mainly on the number of modeled processes and connections to the rest of the IT stack (ERP, accounting, CRM). Here are the 2026 tiers.

The scoping phase (5,000 to 15,000 EUR excl. tax) isn't optional: it freezes scope, workflows and the data model before the first line of code, halving the risk of budget drift.

Custom vs tool assembly

Many mid-market firms stack generic SaaS and glue spreadsheets. This patchwork carries a hidden cost that climbs with growth.

Custom becomes profitable when the hidden costs of assembly — re-entry, errors, stacking licenses — exceed the amortization of the build.

ROI is measured in hours saved

A well-designed business platform removes double entry, makes data reliable and automates low-value tasks. The math is direct: loaded hourly cost × hours saved × 12 months. A team of 12 recovering 3 hours each per week frees roughly 1,900 hours a year, or 65,000 to 95,000 EUR of productive capacity depending on profiles.

Mini case study

Claire, CFO of a B2B distribution mid-market firm in Lyon (140 employees), ran purchasing and stock on 11 shared spreadsheets with recurring inventory discrepancies. Scoping priced a platform at 112,000 EUR (excl. tax), delivered in 7 months with integration to the existing ERP. Result: 32 weekly hours of re-entry removed from the supply team, about 58,000 EUR/year of recovered capacity, plus the end of stockouts caused by manual errors. Payback in under 20 months, not counting fewer supplier disputes.

FAQ

Why does scoping cost so much before development?

Because it fixes exact scope, workflows and the data model. A 10,000 EUR scoping phase routinely avoids 30,000 to 50,000 EUR of rebuilt development caused by a real need that was never formalized.

Can the platform be built in successive modules?

Yes, and it's recommended. Deliver the highest-ROI module first, put it into production, then fund the next ones with the observed gains. This smooths cash flow and reduces risk.

How do you integrate our existing ERP or accounting?

Via API or dedicated connectors. Cost depends on the source tool's interface quality: expect 5,000 to 20,000 EUR per critical integration in 2026, with mandatory sync testing.

What does annual maintenance represent?

Typically 12 to 18% of build cost per year: fixes, regulatory changes, version upgrades and hosting. It's the price of durability for a tool that becomes central to your operations.

Do we own the code?

With custom, yes: the code, data and documentation are yours. That's a fundamental difference from generic SaaS where you rent access without ever owning the business logic.

Let's scope your project. Describe your critical processes, current tools and friction points, and we'll price the modular scope with the best ROI. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.