Best Boilerplates for Multi-Tenant SaaS in 2026

Multi-Tenancy Is Table Stakes for B2B SaaS

Every B2B SaaS needs multi-tenancy. Your customers are organizations — companies that add team members, manage billing, and expect their data to be isolated from other customers.

The challenge: adding multi-tenancy to an existing single-tenant application takes weeks. Adding it from the start takes hours. Choose a boilerplate that includes it.

Data Isolation Approaches

Row-Level Security (Most Common)

-- Each table has a tenant_id column
-- Queries automatically filtered by current tenant
CREATE TABLE documents (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  tenant_id UUID NOT NULL REFERENCES tenants(id),
  title TEXT NOT NULL,
  content TEXT,
  created_at TIMESTAMPTZ DEFAULT NOW()
);

-- PostgreSQL RLS policy
ALTER TABLE documents ENABLE ROW LEVEL SECURITY;
CREATE POLICY tenant_isolation ON documents
  USING (tenant_id = current_setting('app.current_tenant_id')::UUID);

Schema-Based (Stronger Isolation)

-- Each tenant gets their own PostgreSQL schema
-- Higher isolation, harder to query across tenants
CREATE SCHEMA tenant_abc123;
CREATE TABLE tenant_abc123.documents (...);

Database-Per-Tenant (Maximum Isolation)

Separate database per tenant — maximum isolation, highest cost. Used by enterprises with compliance requirements (HIPAA, SOC2). Most SaaS doesn't need this.

Quick Comparison

Starter	Isolation	Teams	RBAC	Billing	Best For
Supastarter	Row-level	✅	✅ Roles	Stripe + 4 more	Complete B2B SaaS
Volca	Row-level	✅	✅	Stripe	Clean, minimal B2B
Bedrock	Row-level	✅	✅	Stripe	Enterprise-grade
Makerkit	Row-level	✅	✅ Roles	Stripe + Lemon	Plugin-based B2B

Supastarter's Multi-Tenancy

The most complete multi-tenancy implementation in any boilerplate:

// Tenant-scoped API — automatic tenant isolation
const documents = await prisma.document.findMany({
  where: {
    organizationId: ctx.organizationId,  // From session context
    // No other tenant's documents can appear here
  },
});

// Create document scoped to current tenant
await prisma.document.create({
  data: {
    title: input.title,
    organizationId: ctx.organizationId,
    createdById: ctx.userId,
  },
});

Team management features:

• Create/invite members via email
• Role assignment (owner, admin, member)
• Remove members
• Transfer ownership
• Per-seat billing with Stripe

The 5 Core Multi-Tenancy Features

Every B2B SaaS needs these — check they're included before buying:

1. Organization/team creation — User creates an org; becomes the owner
2. Member invitation — Invite by email; accept flow; proper error states
3. Role-based access — At minimum: owner, admin, member
4. Per-seat billing — Stripe subscription that scales with member count
5. Data isolation — Members can't see other organizations' data

Supastarter, Volca, and Bedrock include all five. ShipFast and T3 include zero (single-user focus).

Adding Multi-Tenancy to a Single-Tenant Boilerplate

If your chosen boilerplate doesn't include multi-tenancy:

Effort estimate: 2-4 weeks for a senior developer Database changes: Add organization_id FK to every tenant-scoped table Auth changes: Include organizationId in session; scoped access checks everywhere UI changes: Organization switcher, member management pages, billing scoped to org

Better to start with a multi-tenant boilerplate if B2B is the plan from day one.

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Compare multi-tenant SaaS boilerplates on StarterPick.