B2B SaaS platform development cost
Workspaces, seats, roles, billing and SOC 2. Priced as a multi-tenant SaaS product sold to businesses, at US rates and launch scope.
Planning range, not a quote. Every figure comes from the same engine the calculator runs on.
What makes it expensive
Multi-tenancy and billing are both day-one architecture decisions that are close to a rewrite if you get them wrong. SOC 2 is the price of enterprise deals, and the admin surface your own team needs is a second product with its own users.
What is in scope
- Multi-tenant workspaces and seats
- Enterprise SSO and provisioning
- Subscription billing with proration
- Public API, webhooks and audit trail
Where the money goes
The six largest disciplines in this build. The calculator shows all 10, itemised down to individual features.
| Discipline | Hours | Share | Cost |
|---|---|---|---|
| Backend engineering | 1,975 | 36% | $290,000 |
| DevOps & cloud | 600 | 11% | $90,000 |
| Security & compliance | 490 | 10% | $85,000 |
| Web engineering | 600 | 10% | $80,000 |
| QA & testing | 830 | 10% | $80,000 |
| Project management | 490 | 8% | $65,000 |
The same product at four standards of finish
Identical answers, four levels of depth. This is usually the most useful comparison on the page, because it is the decision you actually control.
Standard is highlighted because that is what this example is configured at.
What it costs to keep running
Separate from the build, because operating cost scales with usage and development cost does not.
per month at 45,000 monthly users
21% – 28% of build cost
540 peak concurrent users