The verdict in three sentences
A B2B SaaS MVP shippable in 3 months in Berlin costs, in 2026, between EUR 35,000 and EUR 90,000, depending on the number of integrations and the complexity of the business domain. The variable that blows up the budget is never the design: it is the number of features packed into v1. A disciplined MVP means one core feature validated by real users, not a miniature full product.
What a real MVP does (and does not) contain
The classic founder trap is confusing MVP with a commercial v1. An MVP exists to validate a market hypothesis, not to impress. You code what proves value and buy or reuse the rest.
| Item | Included in the MVP | Deferred after validation |
|---|---|---|
| Core feature | 1 complete business workflow | Secondary modules |
| Authentication | Email login + Google SSO | Enterprise SAML SSO |
| Billing | Simple Stripe subscription | Tiers, add-ons, multi-country VAT |
| Roles | Admin + member | Granular permissions |
| Onboarding | Manual, team-guided | Self-service onboarding |
| Reporting | 3 essential KPIs | Custom dashboards |
| Mobile | Responsive web | Native app |
2026 budget breakdown
Berlin day rates for a qualified product team run in 2026 between EUR 450 and EUR 700 depending on seniority. Here is an estimate (2026 order of magnitude) for a single-feature MVP.
| Item | Estimated effort | Cost EUR |
|---|---|---|
| Scoping & product design | 8-12 days | 5,000-9,000 |
| Auth + billing foundation | 6-10 days | 4,000-7,500 |
| Core feature (front + back) | 25-40 days | 15,000-30,000 |
| Integrations (2-3 APIs) | 8-15 days | 5,000-11,000 |
| Testing & QA | 6-10 days | 3,500-7,000 |
| Deployment & CI/CD | 3-5 days | 2,000-4,000 |
| MVP total | 56-92 days | 35,000-90,000 |
Monthly running cost
Founders often forget the recurring infrastructure cost. In the MVP phase with a few dozen accounts, it stays modest.
| Service | Estimated monthly EUR |
|---|---|
| Cloud hosting (Vercel/Render) | 40-150 |
| Managed database | 25-100 |
| Auth (Clerk/Auth0 free-to-paid) | 0-120 |
| Transactional emails | 15-50 |
| Monitoring & logs | 20-80 |
| Infra total | 100-500 |
Mini case study
Thomas, founder of a B2B startup in Berlin (a compliance SaaS for SMEs), has a pre-seed budget of EUR 120,000. He invests EUR 58,000 in a single-feature MVP delivered in 13 weeks. With an average subscription of EUR 190/month, he needs 26 customers to cover infra plus the iteration budget (EUR 2,500/month). He signs 14 paying customers in 4 months, validates the market, and raises a EUR 800,000 seed on that traction. The MVP cost less than 50% of his envelope and unlocked 6.7x its amount in funding.
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FAQ
Why not go straight for a full product?
Because 70% of a startup's product hypotheses are wrong at the start. Spending EUR 200,000 before a single paying customer is the best way to burn your runway. The MVP validates before you invest.
What should I budget for post-launch iterations?
Plan an iteration budget of EUR 2,000 to 5,000/month for the first 6 months. This is where the product finds product-market fit, often far from the original idea.
No-code, low-code, or custom code?
To test a hypothesis in 2 weeks, a no-code prototype is enough. For an MVP aimed at real paying B2B customers with billing and security, custom code stays more reliable and scalable from EUR 30,000.
How long until the first customer?
With a single-feature MVP, expect 10 to 16 weeks of development, then a first paying customer within the next 4 to 8 weeks if the problem you address is real.
Who owns the code?
At Kolonell, the source code, infrastructure, and intellectual property belong entirely to you upon delivery, with no vendor lock-in.
Let's scope your project. Describe your core feature, your B2B target, and your launch horizon: we will propose a scoped MVP priced between EUR 35,000 and EUR 90,000. 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.
