The verdict in three sentences
A custom compliant EHR costs 60,000 to 150,000 EUR depending on the number of specialties and the level of interoperability. Regulatory line items (compliant hosting, HL7/FHIR, audit trails, privacy) represent 25 to 40 % of the budget and are non-negotiable. Underestimate neither the 6-to-11-month timeline nor the annual maintenance that keeps you compliant over time.
Vendor vs custom: the right trade-off
A vendor EHR deploys fast but imposes its pathways. Custom fits your specialties and flows, at the price of an upfront investment and a maintenance team.
| Criterion | Vendor EHR | Custom EHR |
|---|---|---|
| Entry cost | 10,000-30,000 EUR | 60,000-150,000 EUR |
| Recurring cost | 15,000-40,000 EUR/yr | 12,000-25,000 EUR/yr |
| Fit to specialties | Limited | Total |
| HL7/FHIR interoperability | Module-dependent | Native |
| Timeline | 2-4 months | 6-11 months |
| Code ownership | No | Yes |
| Evolutions | Vendor roadmap | On demand |
The regulatory line items that shape the budget
In healthcare, compliance is not optional. These items must be budgeted at scoping time to avoid overruns.
| Regulatory item | 2026 range | Frequency |
|---|---|---|
| Certified compliant hosting | 8,000-18,000 EUR | Annual |
| HL7/FHIR interoperability | 12,000-30,000 EUR | Build |
| Audit trail & logging | 6,000-15,000 EUR | Build |
| Privacy compliance | 5,000-12,000 EUR | Build + audit |
| Encryption & strong auth | 4,000-10,000 EUR | Build |
| Security audit | 6,000-14,000 EUR | Annual |
Combined, these items often represent 25 to 40 % of the total budget. These are 2026 order-of-magnitude figures, to refine against scope and the number of systems to interconnect.
Mini case study
Mr. Foster, IT director of a three-specialty clinic in Toronto, scopes a custom EHR at 118,000 EUR. The breakdown: 68,000 EUR of business development, 22,000 EUR of HL7/FHIR interoperability with the lab and imaging, and 28,000 EUR of regulatory items (hosting, audit trails, privacy). With compliant hosting at 12,000 EUR per year and maintenance at 18,000 EUR, he gets a proprietary asset aligned 100 % to his pathways, where the vendor alternative required a 34,000 EUR annual fee without owning the code.
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What is compliant health-data hosting and why is it mandatory?
It is a certification required to host personal health data on behalf of third parties. In 2026, expect 8,000 to 18,000 EUR per year depending on volume and redundancy.
Why does HL7/FHIR interoperability matter so much?
It lets your EHR talk to the lab, imaging and other systems. Without it you multiply re-entry and error risk; budget 12,000 to 30,000 EUR to build it in.
How long to build a custom EHR?
Between 6 and 11 months depending on the number of specialties and systems to interconnect, including the compliance phase and data migration.
What share of the budget is compliance?
About 25 to 40 % of the total, across hosting, HL7/FHIR, audit trails, privacy and security audits.
Is maintenance really essential?
Yes, it keeps you compliant over time (security patches, regulatory changes) and represents 12,000 to 25,000 EUR per year as an order of magnitude.
Let's scope your project. Send us your specialties, the systems to interconnect (lab, imaging, billing) and your target budget, and we will split development and regulatory line items. 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.
