Custom ERP cost is the first question for leaders leaving Excel or a rigid package. It depends on scope, but a budget follows a clear method and typical ranges exist.
Typical ranges (French SME market)
- First foundation (one or two modules): €30,000–80,000
- Core-business ERP (purchasing, stock, sales, invoicing, dashboards): €80,000–200,000
- Multi-site or multi-entity with many integrations: above €200,000
Maintenance and improvements usually run at 15–20% of the initial cost per year.
Budget items
Scoping, module development, data migration (see migrating ageing software), integrations (see shipping and carriers in your ERP), training, hosting and maintenance.
Compare total cost
A market ERP starts cheaper but adds per-user licences, configuration, modules and workarounds. Over five years the gap often closes — see custom vs off-the-shelf ERP.
An ERP’s real cost is what a poor fit costs you every day.
Keep control
Phased delivery, start with the most time-consuming module, one shared database, code ownership.
Custom ERP cost: FAQ
Why does ERP cost vary so much?
Scope varies: modules, users, companies, integrations and data quality.
What yearly budget after go-live?
Usually 15–20% of the initial cost for maintenance and improvements, plus hosting.
Request an ERP quote
Our custom ERP development agency runs a two-week audit, then a detailed quote per phase. Request your ERP quote.