AWS Tenancy Cost Calculator
Are you building SaaS the expensive way? Compare multi-tenant vs single-tenant architecture costs and find your crossover point.
Tell us about your SaaS
We'll compare architecture costs for your scale.
Which architecture are you considering?
We'll show costs for both multi-tenant and single-tenant approaches.
| Metric | Multi-Tenant | Single-Tenant |
|---|---|---|
| Monthly Infra Cost (Total) | $X,XXX | $XX,XXX |
| Cost per Customer | $XX | $XXX |
| Data Isolation | Logical | Physical |
See detailed cost comparison, crossover analysis, and implementation guidance — free.
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Detailed Cost Comparison
| Metric | Multi-Tenant | Single-Tenant |
|---|---|---|
| Total Monthly Cost | $X,XXX | $XX,XXX |
| Cost per Customer | $XX | $XXX |
| Crossover Point | At ~X customers | |
Architecture Recommendation
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Our AWS architects can help you design and implement the most cost-efficient tenancy model for your business.
Schedule a Free Architecture Design Session →Who This Tool Is For
SaaS founders, architects, and CTOs deciding between multi-tenant and single-tenant architectures. If you're in the early stages of SaaS design or migrating from one model to another, this tool clarifies the cost implications of each choice.
Why We Built This Tool
Multi-tenant vs single-tenant is often treated as a binary security/compliance decision. But it's really a cost decision. The tradeoff has profound implications for unit economics, scalability, and profitability. This tool makes that economics visible.
What Problem It Solves
- Architecture guessing. Teams pick multi-tenant or single-tenant based on gut feel. This shows the cost difference upfront.
- Scaling surprises. A cheap single-tenant architecture at 10 customers becomes a nightmare at 1000. This shows the inflection point.
- Compliance complexity. "We need single-tenant for compliance" is true, but it's expensive. This helps negotiate with security/legal.
- Migration timing. When should you migrate from multi-tenant to single-tenant? This helps answer that.
Learn more about our AWS architecture consulting or serverless SaaS development.
How to Use This Tool
- Enter your customer count. Use your current or projected customer count.
- Select workload size. Light, medium, or heavy based on typical customer complexity.
- See the cost comparison. Multi-tenant vs single-tenant total cost and cost per customer.
- Find the crossover. This is the customer count where single-tenant becomes cheaper.
Multi-Tenant vs Single-Tenant at a Glance
Multi-Tenant ✓
- Pros: Lower cost per customer, easier scaling, shared infrastructure
- Cons: Noisy neighbor risk, complex isolation, regulatory limits
- Best for: Early stage, cost-sensitive, SMB customers
Single-Tenant ✓
- Pros: Physical isolation, compliance-friendly, customer control
- Cons: Higher cost per customer, ops complexity, deployment overhead
- Best for: Enterprise, compliance-heavy, mission-critical workloads
Frequently Asked Questions
Can I switch from multi-tenant to single-tenant later?
Yes, but it's expensive. You'll need to migrate data, duplicate infrastructure, and handle customer transitions. This tool helps you decide if you should start single-tenant to avoid the migration.
Is there a middle ground?
Yes! Hybrid approaches exist (e.g., multi-tenant for SMBs, single-tenant for enterprise). Some teams use shared infrastructure with logical isolation. This tool shows pure models, but hybrid solutions are often optimal.
What about databases? RDS vs DynamoDB?
This tool focuses on overall architecture cost. Database choice (SQL vs NoSQL) affects multi-tenant cost more than single-tenant. For details, talk to our architects.