The verdict in three sentences
Setting up a GDPR-compliant SSO (SAML 2.0 or OpenID Connect) across your business apps costs 4,000 to 12,000 EUR in 2026, depending on the number of applications and the identity provider. The timeline is 2 to 4 weeks per application, including MFA and logging. Beyond user convenience (a single sign-in), SSO reduces the attack surface and eases GDPR compliance through centralized access and consent management.
What does an SSO integration cost in 2026?
Price depends on the protocol, the number of applications to connect and the associated security features. Here are 2026 orders of magnitude.
| SSO scope | Protocol | Timeline | 2026 cost (EUR) |
|---|---|---|---|
| 1 application, simple SSO | OIDC | 1-2 weeks | 4,000 - 6,000 |
| 2-3 apps + MFA | SAML / OIDC | 3-4 weeks | 7,000 - 10,000 |
| SSO + provisioning (SCIM) | SAML / OIDC + SCIM | 4-6 weeks | 10,000 - 12,000 |
| Full identity portal | Multi-app, RBAC, audit | 6-10 weeks | 12,000 - 20,000 |
Add the identity provider license cost (often 2 to 8 EUR/user/month in 2026 depending on the solution).
SSO and GDPR compliance: the requirements to cover
A well-designed SSO is a compliance lever. Here are the points to check in your project.
| Requirement | What to implement | GDPR impact |
|---|---|---|
| MFA | 2nd factor (TOTP, key, push) | Reduces unauthorized access |
| Consent management | Capture, history, withdrawal | GDPR Article 7 |
| Logging | Timestamped access logs | Article 30 (records) |
| Minimization | Strictly necessary attributes | Article 5 |
| Right to erasure | Delete accounts and logs | Article 17 |
| EU hosting | Identity data in the EU | Framed transfers |
Mini case study
Thomas, CIO of an 80-person consulting firm in Lille, managed 5 business apps with separate passwords: about 35 reset tickets per month to support, at 12 EUR excl. tax per ticket, i.e. 5,040 EUR/year. He integrated an OIDC SSO with MFA across the 5 apps for 10,500 EUR, plus 4 EUR/user/month license (80 x 4 x 12 = 3,840 EUR/year). Tickets dropped 80%, saving about 4,000 EUR/year in support, and above all access-level GDPR compliance is finally documented. The upfront investment pays back in under two years, with security and compliance as a bonus.
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FAQ
SAML or OIDC for my business app?
OIDC (built on OAuth 2.0) is the modern standard, ideal for recent web and mobile apps. SAML remains essential for interfacing with enterprise directories and older software; many projects combine both.
Does SSO automatically make me GDPR-compliant?
No, but it greatly eases compliance: centralized access, logging and consent management. You still need a log retention policy and a right-to-erasure process.
Should I use a commercial identity provider or open source?
Commercial solutions speed up deployment and cover MFA and SCIM natively. Open source (e.g. Keycloak) reduces licenses but demands more operational expertise; the choice depends on your IT team.
Is MFA mandatory?
It is not a general legal requirement, but it is strongly recommended and often demanded by large clients and cyber insurers. The integration overhead is small compared to the security gain.
Let's scope your project. Tell us how many apps to connect, your current directory and your GDPR requirements, and we'll price the SSO integration and MFA. 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.
