TL;DR
- An 8-week SaaS MVP is achievable with 3 features and a SaaS boilerplate: not with 12 features and custom infrastructure
- Weeks 1–2: scope, architecture, and infrastructure foundation
- Weeks 3–6: build the 3 core features
- Weeks 7–8: testing, beta, and launch
- Never add a feature to the MVP without removing another: scope is a zero-sum game in 8 weeks
What Makes 8 Weeks Possible?
Most SaaS products take 4–9 months. An 8-week timeline is achievable only if you make four commitments:
1 3 Features Maximum No scope creep. 3 features, launch, then iterate. 2 SaaS Boilerplate Auth + billing pre-built. Save 4–6 weeks. 3 Managed Services Supabase, Railway, Vercel: no DevOps. 4 Dedicated Team 2+ engineers, full-time, single product focus.The 8-Week SaaS MVP Roadmap
Weeks 1–2Foundation: Scope + Infrastructure
- Finalise the 3 core features: write acceptance criteria for each
- Set up project boilerplate (Next.js, FastAPI/Django, PostgreSQL)
- Configure Auth0/Supabase Auth: sign up, login, password reset
- Set up Stripe: products, prices, Checkout, basic webhook handler
- Deploy CI/CD pipeline (GitHub Actions → staging → production)
- Set up database schema including organisations and subscriptions tables
- Configure error tracking (Sentry) and basic monitoring
Core Feature 1 + Core Feature 2
- Build Feature 1 end-to-end (backend + frontend + tests)
- Build Feature 2 end-to-end
- Basic dashboard showing feature outputs
- User settings page (name, email, password change)
- Org settings page (name, members)
- Daily deploys to staging; weekly review with stakeholder
Core Feature 3 + Onboarding Flow
- Build Feature 3 end-to-end
- Sign-up onboarding wizard (3–4 steps to first value)
- Transactional emails: welcome, trial expiry warning, payment receipt
- Stripe Customer Portal integration for self-serve billing
- Plan gating: restrict features by subscription tier
- Empty states for all features (what to do when no data)
Testing + Bug Fixes
- Full integration test pass: all user journeys end-to-end
- Billing edge case testing (trial, payment fail, cancel, upgrade)
- Security review: tenant isolation, IDOR, injection, access control
- Mobile responsiveness on all pages
- Performance testing: page load times, API response times
- Invite 5–10 internal testers; collect and fix blocking bugs
Beta + Launch
- Invite 20–50 beta users: charge them from day one
- Install product analytics (PostHog) and funnel tracking
- Deploy to production; monitor error rates and performance
- Collect structured feedback from first week of real usage
- Plan V1.1 backlog from beta feedback
What to Absolutely Skip in an 8-Week MVP
| Skip This in MVP | Why | When to Build |
|---|---|---|
| SSO / SAML | 2–3 weeks of work; no early-stage customer needs it | When first enterprise deal requires it |
| Usage-based billing | Complex to implement correctly; fixed plans are sufficient for MVP | After product-market fit is established |
| Public API / webhooks | API design requires stability; early product changes will break it | Once core features are stable (V2+) |
| Custom roles / granular RBAC | 3–6 weeks work; admin/member is enough to start | When team customers request it |
| White-labelling | Complex; resellers won't appear this early | When reseller/agency channel develops |
| Advanced analytics / reporting | Basic usage data suffices; full reporting is V2+ | After users identify what data they need |
Why Most SaaS MVPs Take Longer Than 8 Weeks
Scope creep during build
"While we're here, can we also add...?": this is the single biggest timeline killer. Every mid-sprint addition delays launch by more than it appears. Use a frozen scope: new ideas go on the V1.1 backlog, not into the current build.
Building infrastructure from scratch
Teams that hand-roll auth, multi-tenancy, and billing add 6–10 weeks before a single feature is built. Use proven tools (Supabase, Auth0, Stripe) and boilerplates.
Unclear requirements
Vague requirements cause rebuilds. "Make it fast" and "make it nice" are not acceptance criteria. Write specific, testable requirements before development starts.
8-Week MVP Budget Estimate
| Team | Rate | 8-Week Cost |
|---|---|---|
| UK agency (2 engineers) | £1,200/day | £48,000 |
| UK freelancer (1 senior) | £700/day | £28,000 |
| UK-managed offshore (2 engineers) | £500/day | £20,000 |
| + SaaS boilerplate | One-time | £300–£500 |
Want to Launch Your SaaS MVP in 8 Weeks?
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