Revenue Model
A framework that defines how a business generates income — including pricing structure, customer segments, and revenue streams.
What is Revenue Model?
A revenue model describes the mechanism by which your business makes money. For SaaS companies, the model is typically subscription-based (monthly or annual fees). Other models include usage-based pricing, freemium with premium upgrades, marketplace commissions, and licensing.
Your revenue model determines how predictable your income is, how you forecast growth, and how investors evaluate your business. Subscription models with low churn create highly predictable revenue streams, while usage-based models can be more volatile but may better align with customer value.
A good revenue model also defines your pricing tiers, target customer segments, and expansion paths (how existing customers pay you more over time).
Why it matters
Your revenue model directly impacts your runway planning. A subscription model with 12-month contracts gives you high visibility into future revenue. A transactional model where revenue varies monthly makes planning harder and requires more cash buffer.
The revenue model also determines your unit economics — how much it costs to acquire a customer (CAC) relative to how much that customer is worth over time (LTV). A sustainable business needs LTV to significantly exceed CAC.
Example
A B2B SaaS company uses a tiered subscription model: Starter ($49/month), Growth ($149/month), Scale ($499/month). They have 100 Starter, 40 Growth, and 10 Scale customers. MRR = (100 × $49) + (40 × $149) + (10 × $499) = $4,900 + $5,960 + $4,990 = $15,850.
How RunwayCal helps
RunwayCal's revenue model lets you define revenue assumptions — growth rate, average deal size, churn — and projects MRR forward. The model feeds directly into your runway calculation so you can see how revenue growth impacts your timeline.
Common mistakes
- 1Choosing a revenue model because competitors use it, without validating it with your customers
- 2Not modeling the revenue ramp-up period (it takes time to go from $0 to meaningful MRR)
- 3Ignoring the cost of servicing different customer segments when evaluating the model
Model your revenue growth — and its runway impact
RunwayCal lets you define revenue assumptions and projects how growth changes your runway month by month.
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