The verdict in three sentences
A fundable custom SaaS MVP in Paris in 2026 costs between 25,000 and 60,000 EUR for 8 to 16 weeks of work, provided you fund only one core feature. The stack that maximises the speed/cost ratio is Next.js + Supabase, even if you accept some no-code at first. Above 60,000 EUR you are no longer building an MVP but a v1 product: defer the rest to your raise.
What the MVP budget actually covers
An MVP is not a shrunken version of your vision: it is the smallest product that proves a customer will pay. The classic Paris trap is wanting 5 modules from day one, which triples the bill and delays market entry. In 2026, work billed per two-week sprint costs 6,000 to 12,000 EUR depending on team seniority.
| Item | No-code / low-code | Custom code | 2026 order of magnitude |
|---|---|---|---|
| Single core feature | 4,000-8,000 EUR | 10,000-20,000 EUR | depends on domain complexity |
| Auth + roles | included (Supabase) | 2,000-4,000 EUR | MFA optional |
| Payment / subscription | 1,500-3,000 EUR | 3,000-6,000 EUR | Stripe Billing |
| Admin dashboard | 2,000-4,000 EUR | 5,000-9,000 EUR | key metrics |
| Custom UI design | 3,000-6,000 EUR | 6,000-12,000 EUR | light design system |
| Indicative total | 15,000-30,000 EUR | 35,000-60,000 EUR | excl. infra run |
Sprint breakdown and run budget
Splitting the project into sprints lets you stop at any point if the market does not respond. Each sprint ships a testable increment, which reassures a seed investor.
| Sprint | Deliverable | Indicative budget |
|---|---|---|
| Sprint 0 | Scoping, specs, mockups | 4,000-7,000 EUR |
| Sprint 1 | Auth + technical foundation | 6,000-9,000 EUR |
| Sprint 2 | Core feature v1 | 8,000-12,000 EUR |
| Sprint 3 | Payment + onboarding | 6,000-10,000 EUR |
| Sprint 4 | Dashboard + polish + launch | 6,000-10,000 EUR |
| Infra run | Hosting, database, monitoring | 200-800 EUR/month |
The infrastructure run (Vercel, Supabase, monitoring, transactional email) stays under 800 EUR per month as long as you are below a few thousand active users.
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Mini case study
Thomas, an intrapreneur at a Paris scale-up, wants to validate a compliance-tracking SaaS for finance directors. He funds a 38,000 EUR MVP over 12 weeks: a single core feature (automated regulatory checklist), Stripe for billing, a 350 EUR/month run. At 79 EUR/month per customer, he needs 41 subscribers to cover development within a year and 5 subscribers to cover the run. He signs 12 pilot customers in 3 months: the raise go/no-go is validated before his budget burns out.
FAQ
Can you go below 25,000 EUR? Yes, with no-code (Bubble, Softr) or an ultra-tight scope you can find MVPs at 12,000-20,000 EUR, but the technical debt is paid at your first raise when a rebuild is needed.
How long before launch? Plan for 8 to 16 weeks for a core feature. Each extra module typically adds 2 to 4 weeks.
No-code or custom code? No-code speeds validation and costs 40-50% less, but hits a ceiling once business logic gets specific or volume climbs. Many start hybrid.
What run budget should I plan for year one? Between 200 and 800 EUR per month, i.e. 2,400 to 9,600 EUR a year, excluding acquisition and marketing tools.
Do I need a CTO to launch? Not at MVP stage: an external product team is enough to prove traction; hiring a CTO makes sense after the first recurring revenue.
Let's scope your project. Tell us your core feature, target budget (25-60K EUR) and raise timeline, and we will define a fundable MVP scope. 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.
