The verdict in three sentences
A fundable B2B SaaS MVP lands between 35,000 and 90,000 EUR depending on scope, with 3 to 5 core features, not fifteen. The absolute priority is a real paying flow: authentication, multi-user management and Stripe billing from V1. Anything that doesn't help validate product-market fit belongs in V2.
What an MVP budget actually covers in 2026
An MVP is not a mockup: it charges a subscription. Budget depends mostly on the number of core features and the complexity of your business rules.
| Item | Minimal scope | 2026 estimate (EUR) |
|---|---|---|
| Product framing + UX design | Wireframes, key flows | 4,000 – 9,000 |
| Auth + role management | Login, invites, permissions | 5,000 – 10,000 |
| Core features (3 to 5) | The heart of the value prop | 15,000 – 45,000 |
| Stripe billing | Subscriptions, trials, invoices | 4,000 – 8,000 |
| Admin dashboard + analytics | Usage, accounts | 3,000 – 8,000 |
| Deployment + monitoring | CI/CD, logs, alerts | 4,000 – 10,000 |
| MVP total | 3 to 5 months | 35,000 – 90,000 |
The 2026 reference stack for speed remains Next.js + Supabase + Stripe, cutting time-to-market without mortgaging scalability.
In-house build vs agency vs no-code
Your build model affects your runway more than the day rate does.
| Criterion | In-house build | Specialised agency | No-code |
|---|---|---|---|
| Upfront cost | 2 senior devs ~14,000 EUR/mo | 35,000 – 90,000 EUR | 3,000 – 12,000 EUR |
| Time to 1st paying customer | 5 – 8 months | 3 – 5 months | 1 – 2 months |
| Scale beyond 500 users | High | High | Low (technical wall) |
| Later rebuild cost | None | Low | Often a full rewrite |
| Source-code control | Full | Full (transferred) | Limited |
No-code is excellent to test an idea in 6 weeks, but most B2B SaaS that take off must be rewritten afterwards: that's a hidden six-figure cost.
Mini case study
Thomas, founder of an HR startup in Berlin, wants an MVP to raise a pre-seed. Scope: 4 core features (team import, onboarding workflows, e-signature, reporting), SSO auth and Stripe billing. Agency quote: 58,000 EUR, delivered in 4 months. In-house he'd have paid two senior devs 14,000 EUR/month, i.e. ~84,000 EUR over 6 months, with no delivery guarantee. Choosing the agency, he gains 2 months of runway and signs 3 paying customers before his round, which materially improves his valuation.
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FAQ
What is the minimum budget for a credible SaaS MVP in 2026?
Below 35,000 EUR you have a prototype, not a charging MVP. A real MVP with Stripe billing and multi-account management starts around 35,000 – 45,000 EUR.
How long until the first paying customer?
With an agency and a disciplined scope (3 to 5 features), expect 3 to 5 months. Each nice-to-have added in V1 pushes that date back 2 to 4 weeks.
Should Stripe be integrated from the MVP?
Yes. A SaaS that can't charge validates nothing. Stripe billing (subscriptions, trials, invoices) is 4,000 to 8,000 EUR and is part of the non-negotiable scope.
Can no-code be enough?
To validate an idea in 6 weeks, yes. But beyond 500 active users or complex business rules you hit a technical wall forcing a full rewrite.
Who owns the code at the end?
With a serious agency, the source code is fully transferred to you. Require it in the contract: it's a key asset for your fundraising due diligence.
Let's scope your project. Tell us your 3 to 5 core features, indicative budget and fundraising timeline, and we'll frame the shortest MVP scope to first paying customer. 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.
