Prompt
Do I need SSO for my SaaS app?
Latest observation
Oct 6, 2026
OpenAI APIWeb search: off
Maybe — but not always.
For a SaaS app, you typically need SSO if your customers are businesses and they ask for things like:
- One login for many employees
- Access control tied to their company directory
- Offboarding when employees leave
- Compliance/security requirements (SOC 2, ISO 27001, etc.)
- Enterprise sales expectations
You probably do not need SSO if:
- Your app is consumer/self-serve
- Your users are small teams/startups with simple needs
- You’re early-stage and trying to move fast
- Your customers haven’t asked for it
Common SSO options
- SAML: common for enterprise SaaS
- OIDC / OAuth: simpler modern option, often preferred for new apps
- Google/Microsoft login: not always “enterprise SSO,” but can be enough for many customers
Practical rule of thumb
- B2B SaaS selling to mid-market/enterprise: you’ll likely need SSO eventually
- SMB/consumer SaaS: usually optional
- Enterprise only: assume it’s required
A good approach
If you’re not sure, build your auth so SSO can be added later:
- separate identity from app user accounts
- support organization/workspace membership
- allow multiple auth methods per user
- keep authorization based on roles/orgs, not just login method
If you want, I can help you decide based on your product type, target customers, and sales model.