ERP Cost Overview — Real Numbers for Real Projects
Few decisions in business software carry the same financial weight as ERP. Total cost of ownership reaches 1-5% of annual revenue, the implementation spans 6-36 months, and the system stays in operation for 5-15 years. Headline subscription prices in vendor brochures rarely tell the full story. This page lays out actual cost components, real-world ranges and the most common cost surprises in mid-market projects across Germany, Switzerland and Austria.
Cost categories — what you actually pay for
An ERP project budget breaks down into six categories. (1) Software licences or subscriptions — the headline cost, 15-35% of total. (2) Implementation services — consultancy, configuration, integration, data migration. Typically 35-55% of total. (3) Customisation and development — extensions, custom reports, integration to non-standard systems. 5-20% of total. (4) Training — end-user training, train-the-trainer programmes, e-learning content. 3-8% of total. (5) Infrastructure — hardware (on-premises) or cloud-platform fees, network, backup, security. 5-15% of total. (6) Internal effort — rarely on the project budget but very real: key-user time, change-management workshops, data cleansing. 10-25% of total when fully loaded.
Licence models — cloud, hybrid and on-premises
Cloud subscription per user per month — the modern default. SMB cloud ERP: 25-65 EUR per user per month (weclapp, Xentral, JTL-Wawi, Odoo). Mid-market cloud ERP: 80-180 EUR per user per month (Microsoft Dynamics 365 Business Central, Sage 200, NetSuite). Enterprise cloud ERP: 120-300 EUR per user per month for full users, 20-50 EUR for casual users (SAP S/4HANA Cloud, Dynamics 365 F&O, Oracle Cloud ERP). Pricing tiers (Essentials versus Premium, Full versus Limited user) materially affect TCO.
On-premises licences — one-time purchase plus 20-22% annual maintenance. SAP S/4HANA on-premises core licence: from 5,000-15,000 EUR per named user. abas, proALPHA, Sage X3: 1,500-4,000 EUR per named user. Concurrent licensing (fewer licences than users, shared via login pool) common in mid-market on-premises and reduces nominal cost by 30-50%.
Open-source ERP — no licence cost, paid by implementation effort, support contracts (Odoo Enterprise: 25 EUR per user per month, ERPNext: 50 EUR per user per month for cloud or self-hosted with paid support) and the absence of bundled features.
Implementation services — the largest line item
Implementation cost depends on user count, process complexity, data-migration effort and the number of integrations. Real-world ranges for the mid-market in Germany, Switzerland and Austria:
- 10-30 users, single entity, basic processes: 50,000-200,000 EUR (SMB cloud ERP)
- 30-100 users, multi-entity, moderate customisation: 200,000-700,000 EUR (Business Central, Sage X3, weclapp)
- 100-300 users, multi-country, complex processes: 700,000-2,500,000 EUR (abas, proALPHA, Dynamics 365 F&O)
- 300+ users, global rollout: 2,500,000-15,000,000 EUR (SAP S/4HANA, Oracle Cloud ERP, Infor M3 enterprise rollouts)
Daily rates for ERP consulting in DACH: 1,300-1,900 EUR for junior, 1,500-2,200 EUR for senior, 1,800-3,000 EUR for principal or solution architect. Offshore mix can lower blended rate by 20-40% but adds coordination overhead.
5-year TCO — representative ranges
Combining licence, implementation, customisation, training, infrastructure and 5 years of running costs (support, upgrades, minor enhancements):
- 20 users, SMB cloud ERP (Xentral, weclapp, Odoo): 150,000-400,000 EUR over 5 years
- 50 users, mid-market cloud (Business Central, NetSuite): 500,000-1,500,000 EUR over 5 years
- 100 users, mid-market on-premises (abas, proALPHA, Sage X3): 1,200,000-3,500,000 EUR over 5 years
- 250 users, upper mid-market (Dynamics 365 F&O, IFS Cloud): 3,000,000-8,000,000 EUR over 5 years
- 500+ users, enterprise (SAP S/4HANA, Oracle Cloud ERP): 8,000,000-50,000,000 EUR over 5 years
These are realistic ranges, not best-case marketing numbers. Companies that underbudget the 'non-licence' cost categories — especially internal effort and change management — regularly end up 30-60% over their original plan.
Related Topics
Frequently Asked Questions
Why are implementation services so expensive?
Implementation is mostly a knowledge-transfer and configuration exercise. Consultants spend time on requirements workshops, fit-gap analysis, system configuration, data-migration mapping, integration build, testing, training and post-go-live support. For a 100-user project, expect 800-2,500 person-days of external consulting alongside several hundred days of internal effort. At DACH consulting rates, that adds up quickly.
Can I reduce cost by skipping customisation?
Yes, and modern best-practice strongly recommends it. Configuration (within the ERP's standard parameters) is cheap; customisation (modifying the standard code) is expensive to build, more expensive to maintain and breaks at every vendor upgrade. The cloud-ERP playbook is: adapt the business process to the standard system, only customise where it provides differentiated competitive advantage. This typically halves the customisation budget.
How do I avoid the typical 30-60% budget overrun?
Three rules. (1) Budget realistically — assume 25-40% contingency on top of vendor proposals. (2) Fix scope early and govern change requests rigorously — every late scope addition costs 2-3x its early-stage equivalent. (3) Invest in key-user readiness and change management; under-prepared business users cause the longest and most expensive go-live delays.
What is the cheapest path to an ERP?
For a small company (under 20 employees) with simple processes, Odoo Community (open source, self-hosted), JTL-Wawi or orgaMAX can deliver a working ERP for under 50,000 EUR all-in. weclapp and Xentral with basic implementation start around 30,000 EUR. Cost-conscious projects benefit most from disciplined scope, low customisation and standard processes — the discipline often matters more than the vendor choice.
Are TCO advantages of cloud real?
Cloud reduces upfront capex significantly — instead of 200,000-500,000 EUR in hardware and licences on day one, you pay 5,000-15,000 EUR per month. Over a 5-year horizon, cloud and on-premises TCO usually converge within 10-20%. Cloud's real advantages are speed of deployment, reduced IT operations burden, and automatic upgrades.