The verdict in three sentences
A B2B SaaS MVP in 2026 typically costs EUR 35,000 to 120,000 excl. VAT and ships in 8 to 16 weeks, depending on the number of roles, integrations and automation level. The MVP is not a "cut-price" version: it is the smallest scope that proves value with real paying customers, so every euro must fund a validated feature. After launch, budget a monthly run cost of EUR 400 to 2,500 (hosting, third-party services, monitoring) before any enhancements.
MVP budget ranges by scope
2026 order of magnitude for an MVP built by an agency, excluding run and marketing.
| MVP scope | Content | Timeline | Budget EUR excl. VAT |
|---|---|---|---|
| Lean (1 role) | Auth, 1 core workflow, simple dashboard | 8-10 wks | 35,000 – 55,000 |
| Standard (2-3 roles) | Roles, basic billing, notifications | 10-13 wks | 55,000 – 85,000 |
| Extended (multi-tenant) | Client isolation, API, admin | 13-16 wks | 85,000 – 120,000 |
| Data-heavy | Imports, reporting, connectors | 14-18 wks | 100,000 – 150,000 |
The golden rule: a well-targeted EUR 55,000 MVP beats an "almost-product" at EUR 130,000 that never meets the market. Each non-essential feature deferred to phase 2 saves on average EUR 6,000 to 15,000 excl. VAT.
Scope/cost trade-offs and run cost
The most effective trade-off levers, from most to least profitable.
| Trade-off | What you remove from the MVP | Saving EUR excl. VAT |
|---|---|---|
| Manual billing at first | Subscription/quota module | 11,000 – 24,000 |
| Single auth method | Enterprise SSO, advanced MFA | 6,000 – 12,000 |
| No public API | REST/Webhooks, docs, keys | 9,000 – 20,000 |
| Deferred reporting | Analytics dashboards | 8,000 – 18,000 |
| Light design system | Deep custom design | 5,000 – 12,000 |
On the monthly run side, here are the typical post-launch items.
| Run item | Monthly range |
|---|---|
| Hosting / database | EUR 80 – 600 |
| Transactional email | EUR 20 – 150 |
| Monitoring / logs | EUR 30 – 250 |
| Payment (Stripe/Wave, variable %) | per revenue |
| Support / fixes (retainer) | EUR 250 – 1,500 |
Mini case study
Karim, CEO of a B2B logistics start-up, wants to validate a delivery-tracking SaaS with 5 pilot carriers. The agency proposes a Standard MVP at EUR 72,000 excl. VAT over 12 weeks. He removes automated billing (–EUR 16,000, manual billing for the first 6 months) and the public API (–EUR 14,000, deferred). The signed MVP: EUR 42,000 excl. VAT, delivered in 9 weeks, with a run of EUR 480/month. Goal: convert 3 of the 5 pilots at EUR 900/month, i.e. EUR 2,700 MRR, to cover the run and seed phase 2 within 5 months.
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FAQ
What is the floor budget for a credible B2B SaaS MVP?
Around EUR 35,000 excl. VAT for a lean single-role scope with authentication, one core workflow and a dashboard. Below that, you fund a clickable mockup, not a sellable product.
How long to launch an MVP?
Eight to sixteen weeks depending on scope. A well-scoped lean MVP ships in 8-10 weeks; adding multi-tenant and an API pushes to 14-16 weeks.
Should billing be in the MVP?
Rarely: billing your first 5 to 10 customers manually saves EUR 11,000 to 24,000 excl. VAT and lets you validate pricing before automating. Automate when admin load exceeds 2-3 hrs/week.
What run cost for the first 6 months?
Between EUR 400 and 2,500/month depending on traffic and third-party services, excluding payment fees. Budget this from the business plan; it is often forgotten.
Can an MVP grow into the final product without a rewrite?
Yes if the architecture is clean from the start (multi-tenant where relevant, tested code). A poorly built "throwaway" MVP can cost EUR 20,000 to 50,000 to redo; a well-architected MVP extends in batches.
Let's scope your project. Tell us the one feature that proves your value and how many pilot customers you target: we scope a lean MVP with budget and timeline. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
