The verdict in three sentences
A viable B2B SaaS platform MVP in Berlin in 2026 costs between 25,000 and 50,000 EUR, no more, provided you limit yourself to one core feature and defer everything else. The realistic timeline is 10 to 14 weeks on a Next.js + Supabase + Stripe stack, with authentication and billing included from day one. The trap is not the build cost but the iteration budget: plan 5,000 EUR/month to survive the six months after launch.
What a 25,000-50,000 EUR MVP covers
An MVP is not a poor version of your final product: it is the minimal experience that proves a B2B customer will pay. The budget breaks into deliverable lots, so you can stop or pivot at each milestone without losing the investment.
| Lot | Content | Range (EUR) | Timeline |
|---|---|---|---|
| Discovery & design | Workshops, wireframes, light design system | 3,000 - 6,000 | 1-2 wk |
| Technical foundation | Next.js, Supabase, auth, roles, CI/CD | 5,000 - 9,000 | 2-3 wk |
| Core feature | The function that creates unique value | 9,000 - 18,000 | 3-5 wk |
| Stripe billing | Subscriptions, trials, webhooks, customer portal | 4,000 - 7,000 | 1-2 wk |
| QA & go-live | Tests, fixes, Vercel deployment | 4,000 - 10,000 | 1-2 wk |
Adding the medians of each lot lands around 34,000 EUR, the heart of the range. Anything not in this table (advanced multi-tenant, SSO, custom analytics, native mobile) is out of MVP scope: document it, don't build it yet.
The day rate and the logic of iteration
Cost depends directly on the day rate of the profiles involved. In Berlin in 2026, freelance and agency benchmarks are stable but tight on senior talent.
| Profile | 2026 day rate (EUR) | Typical days on an MVP |
|---|---|---|
| Junior fullstack developer | 350 - 450 | 10-15 |
| Senior fullstack developer | 550 - 700 | 20-30 |
| Product designer | 450 - 600 | 8-12 |
| Tech lead / architect | 650 - 850 | 5-10 |
| Product manager | 500 - 650 | 8-12 |
An MVP mobilizes on average 55 to 75 person-days. At a blended rate of 520 EUR, that gives 28,600 to 39,000 EUR: consistent with the stated range. After launch, don't cut the team: reserve 5,000 EUR/month (about 9-10 days) to fix, measure and add the second feature based on paying feedback. Without this budget, 7 out of 10 MVPs stall for lack of tuning.
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Mini case study
Julian, co-founder of an HR startup in Berlin, wants to validate an annual-review tracking tool for SMEs. He raised a 250,000 EUR pre-seed and refuses to burn 100,000 EUR on an unvalidated product.
MVP scope: one core feature (creating and signing reviews), auth + Stripe billing. Build budget: 32,000 EUR, timeline 12 weeks. He then reserves 5,000 EUR/month over 6 months, i.e. 30,000 EUR of iteration. Total first-year investment: 62,000 EUR. At a price of 79 EUR/month/customer, he reaches operational break-even at 66 active customers, achievable in 9 months per his pipeline. He keeps 188,000 EUR of runway for acquisition.
FAQ
Can you build an MVP for under 25,000 EUR? Yes, with no-code (Bubble, Softr) or an even tighter scope, around 12,000-20,000 EUR. But technical debt and customization limits quickly catch up with a B2B SaaS aiming to scale.
Why Next.js + Supabase rather than a custom stack? This combination provides ready-made auth, database, storage and real-time, cutting the technical foundation by 30-40%. You save 4,000 to 6,000 EUR on the first lot alone.
How long before first revenue? With Stripe billing built into the MVP, you can charge from go-live, about 12 weeks after kickoff. The first euro often arrives during the paid beta.
Do you need a designer for the MVP? Yes, but in a limited dose (8-12 days). A B2B buyer paying 79 EUR/month expects a credible interface; sloppy design tanks conversion right at the sales demo.
What if the market doesn't respond? That is exactly the point of the MVP: spend 32,000 EUR to find out, not 150,000. Lot-based delivery lets you stop at the core-feature milestone if signals are weak.
Let's scope your project. Tell us your core feature, indicative budget and target launch date, and we'll frame an MVP shippable in 10-14 weeks. 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.
