The verdict in three sentences
Hosting a SaaS application costs from EUR 80/month in the early phase to EUR 2,000/month and up at scale in 2026, depending on architecture (VPS, containers, serverless) and service level. The metric that matters isn't the raw bill but the TCO per active user: a well-sized infrastructure should cost a fraction of the subscription price. The real traps are usage-based billing (egress, requests, storage) and multi-region, which can double the bill without warning.
VPS vs containers vs serverless
Architecture choice depends on stage and load. VPS is simple and predictable; serverless absorbs spikes but gets expensive at constant volume; containers (Kubernetes) offer the best control at scale.
| Criterion | VPS | Containers | Serverless |
|---|---|---|---|
| Early cost (month) | EUR 80-250 | EUR 200-500 | EUR 50-200 |
| Scale cost (month) | EUR 500-1,500 | EUR 1,000-3,000 | EUR 1,500-5,000 |
| Elasticity | Low | High | Automatic |
| Ops complexity | Low | High | Medium |
| Bill predictability | Excellent | Good | Low |
| Suited to | MVP, early | Controlled scale | Variable load |
Many SaaS start on serverless or VPS then migrate to containers once load becomes constant and predictable, to regain control of costs.
The recurring items not to forget
Hosting isn't just compute. Managed database, monitoring, backups and CDN form the backbone of a reliable service, and each has a cost.
| Item | Early (month) | Growth (month) | Scale (month) |
|---|---|---|---|
| Compute (servers/functions) | EUR 80 | EUR 400 | EUR 1,200 |
| Managed database | EUR 25 | EUR 150 | EUR 600 |
| Monitoring & logs | EUR 0-30 | EUR 80 | EUR 250 |
| Backups & storage | EUR 10 | EUR 60 | EUR 200 |
| CDN & egress | EUR 5 | EUR 90 | EUR 400 |
| Total (2026) | ~EUR 130 | ~EUR 780 | ~EUR 2,650 |
Egress (outbound data) is the classic trap: seemingly free, it explodes as soon as you serve large files or go multi-region.
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Mini case study
A Singapore SaaS vendor (project management tool) grows from 300 to 4,000 active users in a year. Its hosting bill climbs from EUR 130 to EUR 2,650/month. Per user, TCO moves from EUR 0.43 to EUR 0.66 per user/month: under control, since its average subscription is EUR 19/month. Hosting therefore represents 3.5% of revenue, a healthy ratio. By migrating from serverless to containers at scale, it saves about EUR 900/month on constant load, i.e. EUR 10,800/year.
FAQ
Which hosting for a SaaS MVP? A VPS or serverless at EUR 80-200/month is plenty to validate the market. No need to over-invest in Kubernetes before you have traction.
When should I migrate to containers? When load becomes constant and predictable, typically past a few thousand active users. Serverless then costs more than well-sized containers.
What is TCO per active user? It's total infrastructure cost divided by the number of active users. Aim to keep this ratio under 5% of revenue per user: beyond that, the architecture needs optimizing.
Is multi-region essential? Only if you have clients demanding low latency or data residency. It can double the bill: enable it only on a real contractual requirement.
How do I avoid billing surprises? Enable budget alerts, watch egress and storage, and review the architecture each quarter. Usage-based billing rewards vigilance.
Let's scope your project. Give us your number of active users, your growth curve and your data-residency constraints: we'll size the infrastructure and target TCO. 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.
