The verdict in three sentences
Turning a single-client product into a multi-tenant white-label SaaS costs 50,000 to 110,000 EUR (about 54,000 to 120,000 USD) in 2026, depending on data isolation and the depth of customisation. Designed well, the architecture brings hosting down to 0.5 to 2 EUR per account per month, which makes a network of 30 resellers profitable from a few hundred users each. The realistic timeline is 4 to 6 months, a third of it spent on isolation, per-tenant billing and security testing.
The building blocks of a white-label SaaS
Every reseller wants its logo, domain name, colours, emails and sometimes its own pricing. You want one codebase, one deployment and data that never crosses over.
| Building block | Role | Indicative cost (2026 estimate) |
|---|---|---|
| Tenant model and routing | Tenant identified by domain or subdomain | 6,000 to 12,000 EUR |
| Brand customisation | Logo, colours, fonts, favicon, copy per tenant | 5,000 to 10,000 EUR |
| Custom domains | planning.distributor.sg with automatic SSL | 3,000 to 7,000 EUR |
| Data isolation | Schema per tenant or tenant key with row-level security | 8,000 to 20,000 EUR |
| Per-tenant Stripe billing | Subscriptions, tiers, reseller commission, invoices in their name | 7,000 to 15,000 EUR |
| Reseller console | Manage own customers, users, statistics | 8,000 to 18,000 EUR |
| White-label emails and notifications | Sender and templates per tenant | 3,000 to 6,000 EUR |
| Security, audit log, testing | Penetration tests, PDPA and GDPR compliance | 6,000 to 15,000 EUR |
Three isolation models, three budgets
Your isolation choice drives the upfront price, the hosting cost and your sales arguments with enterprise clients.
| Model | Principle | Build cost | Hosting per account per month | Best for |
|---|---|---|---|---|
| Shared database, tenant key | All data in the same tables, filtered by tenant | 50,000 to 70,000 EUR | 0.5 to 1 EUR | SMEs, high volumes |
| Schema per tenant | One database, one isolated schema per reseller | 65,000 to 90,000 EUR | 0.8 to 1.5 EUR | Distributor networks |
| Database per tenant | A dedicated database per reseller | 80,000 to 110,000 EUR | 1.5 to 2 EUR and up | Demanding enterprises |
| Hybrid | Shared by default, dedicated database as a paid option | 85,000 to 110,000 EUR | Variable | Tiered offering |
For 30 distributor networks, schema per tenant is a good compromise: isolation that is easy to demonstrate in an audit, per-reseller backup and restore, without multiplying infrastructure costs.
Reseller business model
| Parameter | Typical 2026 value |
|---|---|
| List price per user | 25 to 45 EUR per month |
| Reseller discount | 30 to 40 % |
| Onboarding fee per reseller | 1,500 to 5,000 EUR |
| Hosting cost per account | 0.5 to 2 EUR per month |
| Stripe fees | About 3.4 % + 0.50 SGD per card transaction in Singapore |
| Platform maintenance | 15 to 20 % of build per year |
Mini case study
Sophie, CEO of a scheduling software publisher in Singapore, targets 30 distributor networks with an average of 120 users each, 3,600 accounts. List price 30 EUR per user per month, reseller discount 35 %: she collects 19.50 EUR per account, 70,200 EUR per month. Schema-per-tenant hosting costs about 1.2 EUR per account, 4,320 EUR per month. With an 80,000 EUR build, 14,000 EUR annual maintenance and 30 onboarding fees at 3,000 EUR (90,000 EUR), the investment is covered in the first full quarter at full load. Even with only 10 active resellers in year one, monthly margin exceeds 21,000 EUR and the build is paid back in under 5 months.
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FAQ
How much does a multi-tenant white-label SaaS cost in 2026?
Between 50,000 and 110,000 EUR depending on data isolation and the reseller console. Converting an existing product often costs 30 % less than starting from scratch, if the codebase is healthy.
Can each reseller have its own domain name?
Yes, with automatic SSL certificate issuance. The reseller adds one DNS record, the platform does the rest in under 10 minutes.
How do we bill through resellers with Stripe?
With Stripe Connect or per-tenant Stripe Billing, you collect, take your share and pay out the commission. In Singapore, card fees are around 3.4 % + 0.50 SGD per domestic transaction, plus Connect payout fees.
How do we prove data isolation to a client?
With a schema or database per tenant, an annual penetration test (5,000 to 12,000 EUR) and an audit log. These answer enterprise security questionnaires.
How long until the first resellers go live?
Allow 4 to 6 months for the platform, then 1 to 2 weeks per reseller for onboarding, data migration and training.
Let's scope your project. Describe your current product, target number of resellers and required isolation level: we will price a multi-tenant architecture between 50,000 and 110,000 EUR over 4 to 6 months. 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.
