The verdict in three sentences
In 2026, a B2B SaaS platform multi-tenant in Singapore costs between 90 000 and 280 000 SGD for a first sellable product. Cost comes not from screens but from three building blocks: multi-tenancy (account isolation), usage-based billing and the SLA you promise. A sellable MVP exists from 90 000 SGD; scalability and compliance push the budget higher.
How much a B2B SaaS platform costs in 2026
Budget depends on the maturity targeted: an MVP to validate the market, or a scalable product ready for growth.
| Level | Scope | 2026 price (SGD) | Timeline |
|---|---|---|---|
| Sellable MVP | 1 core feature, single billing | 90 000 - 140 000 | 4-6 months |
| Established product | Multi-tenant, roles, self-service | 140 000 - 210 000 | 6-9 months |
| Scalable | Usage-based, SLA, public API | 210 000 - 280 000 | 9-12 months |
| Compliance | Advanced privacy, audit, ISO-ready | +20 000 - 45 000 | +2-3 months |
2026 order of magnitude for a senior team, excluding cloud infrastructure (often 1 500-7 000 SGD/month by load).
Core SaaS modules and scaling cost
Each block has a build cost and a recurring cost as customer count grows.
| Module | Role | Build 2026 (SGD) | Cost at scale |
|---|---|---|---|
| Multi-tenant | Account isolation | 24 000 - 46 000 | Low |
| Usage billing | Metering + usage invoicing | 20 000 - 40 000 | Medium (volume) |
| Multi-account admin | Customer, role management | 16 000 - 30 000 | Low |
| Self-service | Signup, trial, upgrade | 14 000 - 26 000 | Low |
| SLA / observability | Monitoring, 99.9 % uptime | 16 000 - 34 000 | Medium (on-call) |
| Public API | Customer integrations | 16 000 - 38 000 | Medium (support) |
Usage-based billing (metering) is the most underestimated module: counting, aggregating and invoicing consumption reliably takes real engineering.
Mini case study
Wei Lin, founder of a logistics startup in Singapore, wants to sell a fleet-tracking SaaS billed per active vehicle. She invests 125 000 SGD in a multi-tenant MVP with usage billing and self-service, delivered in 5 months. With 40 customers at an average 480 SGD/month in year one, she reaches 19 200 SGD MRR, i.e. 230 000 SGD annualised: the platform is recouped in around 8 months of operation, excluding acquisition costs.
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
FAQ
Should we go multi-tenant from day one or start simple?
Native multi-tenancy is recommended from the start: retrofitting costs 30 to 50 % more than a clean design. You can still ship a reduced first functional scope.
Is usage-based billing worth the extra cost?
Yes for a SaaS whose value grows with usage. It costs 20 000 to 40 000 SGD to build but aligns price with perceived value and improves retention.
What SLA should we promise B2B customers?
99.9 % uptime is a reasonable 2026 standard, implying monitoring, redundancy and on-call. A stricter SLA (99.99 %) nearly doubles operating cost.
What monthly cloud budget to plan?
Budget 1 500 to 7 000 SGD/month at launch by traffic and data. This cost follows usage and stays marginal against MRR beyond a few dozen customers.
How long for a sellable MVP?
A multi-tenant MVP with basic billing ships in 4 to 6 months. The full scalable product lands between 9 and 12 months.
Let's scope your project. Describe your core feature, your billing model (usage, per seat) and your target customers: we frame the MVP, multi-tenancy and billing. 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.
