B2B SaaS MVP in 8 Weeks — Framework & Cost
B2B SaaS MVP development framework: 8-week timeline, stack choices, and $28K–$55K cost ranges. From a team that has shipped 50+ MVPs.
We've launched 50+ MVPs. Some became products processing millions in revenue. Others pivoted. All shipped on time. Here's our framework.
Week 1-2: Discovery & Architecture
What We Do
- Stakeholder interviews - understand the problem deeply, not just the solution
- User story mapping - prioritize features into MVP, V1, and V2 buckets
- Technical architecture - database schema, API design, infrastructure decisions
- Design system - establish visual language, component library, responsive breakpoints
The MVP Rule
If a feature doesn't directly help acquire or retain your first 100 users, it's not MVP. Ruthlessly cut scope.
Week 3-5: Core Development
Tech Stack Decision
| Component | Our Default | Alternative |
| Frontend | React + TypeScript | Next.js (if SEO matters) |
| Backend | Node.js + NestJS | Python FastAPI (if ML-heavy) |
| Database | PostgreSQL | MongoDB (if schema is truly unknown) |
| Auth | Supabase Auth | Auth0 (enterprise requirements) |
| Hosting | AWS / Vercel | GCP (if using Vertex AI) |
| Payments | Stripe | - |
Week 6-7: Polish & Integration
- Payment integration - Stripe subscriptions, webhooks, invoice generation
- Email flows - welcome, onboarding, trial expiry reminders
- Error handling - user-friendly error messages, Sentry integration
- Performance - lazy loading, image optimization, API response caching
- Security audit - input validation, SQL injection prevention, CORS configuration
Week 8: Launch
What This Costs
Typical 8-week MVP with 2-3 developers:
| Item | Cost Range |
| Design & Architecture | $5K - $10K |
| Core Development (6 weeks) | $20K - $40K |
| DevOps & Launch | $3K - $5K |
| Total | $28K - $55K |
Ready to build your MVP? Let's scope it together - free consultation, honest timelines.
Frequently Asked Questions
How much does a B2B SaaS MVP cost in 2026?
Production MVPs typically start from $11,000 for an 8-week build with a senior team. Scope, integrations, and compliance requirements move the number up or down.
Can you ship a SaaS MVP in 8 weeks?
Yes, with ruthless scope control. MVP means one core workflow, auth, billing basics, and admin — not every feature on the roadmap.