The verdict in three sentences
A B2B SaaS MVP exists to validate one market hypothesis with a single core feature, not to ship the finished product. In 2026, budget EUR 25,000 to EUR 60,000 for a custom MVP delivered in 10 to 16 weeks, plus EUR 200 to EUR 800/month of infrastructure. The real risk isn't the dev budget, it's bloating the scope and delaying your first paying customer.
What an MVP includes (and excludes)
An MVP is not a stripped-down 1.0: it's the smallest product a customer will pay for. The standard 2026 scope is limited to authentication, one core feature, recurring billing and a security baseline. Everything else (advanced analytics, granular roles, white-label, native mobile) moves to post-MVP.
| MVP block | Included | Indicative effort (days) |
|---|---|---|
| Authentication + account management | Yes | 4-7 |
| Single core feature | Yes | 12-25 |
| Recurring billing (Stripe/subscription) | Yes | 5-9 |
| Minimal admin dashboard | Yes | 4-8 |
| Onboarding + transactional emails | Yes | 3-6 |
| Advanced analytics / reporting | No (post-MVP) | - |
| Native mobile app | No (post-MVP) | - |
Budget, stack and monthly cost
Budget mostly tracks person-days and day rate. In 2026, a senior full-stack freelancer charges EUR 450 to EUR 700/day; a structured agency quotes a fixed price against scope. The typical 2026 stack (Next.js, PostgreSQL, managed hosting) keeps infra under EUR 800/month while traction is low.
| Line item | 2026 order of magnitude |
|---|---|
| Full custom MVP | EUR 25,000 - 60,000 |
| Senior developer day rate | EUR 450 - 700 |
| Delivery time | 10 - 16 weeks |
| Monthly infra (early stage) | EUR 200 - 800/month |
| UI/UX design (included or extra) | EUR 4,000 - 12,000 |
| Post-MVP phase (V1) | EUR 20,000 - 50,000 |
No-code vs custom: decide fast
No-code (Bubble, Softr, Xano) tests an idea for EUR 5,000 to 15,000, but hits a ceiling as business logic grows complex or volume climbs. Custom costs more upfront but avoids a full rebuild at your funding round.
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| Criterion | No-code | Custom |
|---|---|---|
| Upfront cost | EUR 5,000 - 15,000 | EUR 25,000 - 60,000 |
| Timeline | 3 - 6 weeks | 10 - 16 weeks |
| Complexity ceiling | Low to medium | High |
| Exit / migration cost | High (rebuild) | Low (you own the code) |
| Best for | Fast validation | Product built to scale |
Mini case study
Thomas, founder of a small software firm in Montreal, wants to launch a field-service SaaS MVP for tradespeople. Scope: auth, job scheduling (core feature), a EUR 39/month subscription. Custom quote: EUR 42,000, 13-week delivery, EUR 350/month infra. Target: 60 paying customers in year one, i.e. 60 x 39 x 12 = EUR 28,080 annualized MRR by the end of year one. With 90 customers in year two, the upfront investment is recovered around month 16, excluding sales costs.
FAQ
What is the minimum budget for a real B2B SaaS MVP in 2026? At least EUR 25,000 for a custom build with auth, one core feature and billing. Below that you're on no-code or a non-billable prototype.
How long to deliver an MVP? Between 10 and 16 weeks for a disciplined scope. Every added secondary feature pushes go-to-market back by 2 to 4 weeks.
Should I start no-code then migrate? Yes if the goal is validating a hypothesis in under 6 weeks for less than EUR 15,000. No if you already know the business logic will be heavy: migration often costs as much as a rebuild.
What is the monthly infrastructure cost at launch? Between EUR 200 and EUR 800/month with a modern managed stack, while you stay under a few hundred active users.
Is design included in the dev budget? Not always. Plan an extra EUR 4,000 to 12,000 if UI/UX isn't part of the development quote.
Let's scope your project. Tell us your core feature, your B2B target and an indicative budget (EUR 25,000-60,000): we'll frame the MVP scope and stack. 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.
