sso.tax

What It Is

sso.tax’s main page is called “The SSO Wall of Shame.” It is not positioned as traditional enterprise software, but as a public information list that tracks SaaS vendors that put single sign-on (SSO) behind expensive enterprise tiers, quote-based plans, or steeply marked-up packages. The site makes its stance clear: for companies with more than five employees, SSO is a basic security requirement and should not be treated as a luxury feature.

Core Features and Data Dimensions

Its main function is a comparison table showing each vendor’s base price, the price that includes SSO, the percentage increase, source links, and the last updated date. The page covers many vendors, including Adobe, Airtable, Asana, GitHub, Slack, Zoom, and n8n, and also has a separate “Quotes Required” category for vendors whose SSO pricing requires contacting sales. For IT and security teams, this information can help assess whether a supplier is using SSO to charge a premium for security functionality.

Pricing and Business Model

The captured content does not show any pricing, membership, or API fees for sso.tax itself, so it appears to be a free public website. What it displays is the pricing gap among third-party SaaS products—for example, base plans billed per user/month, while plans with SSO may cost several times more or require an enterprise quote. Its value therefore lies more in procurement intelligence and pricing transparency than in providing software functionality itself.

Pros and Cons

Its strengths are a very focused topic, an easy-to-read table structure, and the inclusion of sources and update times, making it useful for quickly spotting the risk of SSO being bundled into high-priced tiers. The limitations are also clear: it can only reflect publicly collected or maintained data, so pricing may be out of date; some entries only show “Call Us” or an unknown markup; and it does not provide the SLA details, feature coverage, regional availability, implementation complexity, or other information needed for a complete vendor selection process.

Who It’s For

It is suitable for SaaS procurement teams, CIOs, IT administrators, security leads, startups, and finance leaders at growing companies—especially when they need to judge before negotiations whether a vendor’s SSO premium is unusually high. It is also useful for security teams setting policy: prioritizing vendors that provide SSO as a basic security capability.

Access from China and Alternatives

The captured content does not provide information on access from mainland China, payment methods, or localization, so availability should be considered unknown. If the site is inaccessible, you can check each vendor’s official pricing page directly, or cross-check information using domestic enterprise software selection platforms as well as ecosystem materials for Microsoft Entra ID, Google Workspace, and Okta.