What this calculator measures
SaaS pricing must recover shared fixed costs, customer-level delivery costs, payment fees, and the margin needed to fund growth and operations. This model spreads fixed cost across a chosen number of paying customers, then solves for a per-customer price.
The customer-volume assumption is especially important. If actual customers are below the estimate, each customer must carry more fixed cost. Pricing tiers, annual discounts, support intensity, usage-based infrastructure, and churn may require a more detailed model.
Common use cases
Use this model when the inputs describe the same decision, period and customer or product scope.
- Estimate a monthly subscription price from fixed costs, customer costs, fees, volume, and target margin.
- Use the result with the recorded inputs: Monthly fixed costs, Cost per customer, Paying customers, Payment fee, Target gross margin.
- Compare multiple scenarios before making a business decision.
Formula
The price must cover fixed and customer-level costs before payment fees and the target margin are reserved.
Formula breakdown
- Customer count, price and churn assumptions should use the same billing cadence.
- Gross margin should use a consistent cost-of-service definition.
Worked example
Monthly fixed cost is $24,000, variable cost is $8 per customer, and expected volume is 600 customers. With a 3% payment fee and 65% target gross margin, the required price is ($24,000 ÷ 600 + $8) ÷ (1 − .03 − .65) = $150 per customer per month.
Scenario comparison
500 customers at $40 per month produces $20,000 MRR before churn, discounts and expansion.
A 10% price rise with 6% customer loss may still lift MRR, but retention effects require separate analysis.
How to interpret the result
The calculated price is a cost-and-margin threshold, not proof of market willingness to pay. Compare it with customer value, alternatives, positioning, packaging, and expected conversion.
If fee rate plus target margin reaches 100%, no finite price can satisfy the assumptions. Reduce the target, lower cost, change payment economics, or increase expected customers.
What a good result looks like
A good price supports sustainable margin and customer value while remaining credible for the target segment.
Evaluate pricing by segment and retention, not only a target margin.
Common mistakes
- Assuming every customer pays list price.
- Treating annual prepayment as extra recurring revenue instead of normalizing the period.
When this metric can mislead you
The calculator cannot predict demand elasticity or competitor response.
A higher theoretical price may reduce conversion, expansion or retention.
How to use the result in a decision
Use it to compare packages and margin outcomes.
Validate major changes with customer research and controlled tests.
Assumptions and limitations
- Fixed and variable costs are monthly and use the same scope.
- Paying-customer count represents the modeled steady period.
- Payment fees scale as a percentage of revenue.
- Churn, tax, discounts, bad debt, and tier mix are not separately modeled.