How to Model SaaS Pricing
Choosing the right SaaS pricing model impacts revenue, customer acquisition, and retention. The three core models—per-seat, usage-based, and flat-rate—each have trade-offs.
The Three SaaS Pricing Models
Per-Seat Pricing
Revenue = Number of Seats × Price per Seat × Customers
Example: Slack, Salesforce, HubSpot
Usage-Based Pricing
Revenue = Usage Units × Price per Unit × Customers
Example: AWS, Twilio, Stripe
Flat-Rate Pricing
Revenue = Monthly Price × Customers
Example: Netflix, Basecamp
Per-Seat Pricing Deep Dive
Pros:
- Predictable revenue (easy to forecast)
- Natural expansion as teams grow
- Simple to understand and budget
- Aligns value to team size
Cons:
- Customers resist adding users (share logins)
- Doesn't capture value if some users are power users
- Price ceiling if team size caps
Best for: Collaboration tools, CRM, project management, communication platforms
Usage-Based Pricing Deep Dive
Pros:
- Low barrier to entry (pay as you grow)
- Aligns revenue with customer success
- Captures full value from power users
- Automatic expansion revenue
Cons:
- Unpredictable revenue (harder to forecast)
- Bill shock can cause churn
- Requires robust usage tracking
- Complex pricing for customers to predict
Best for: Infrastructure, APIs, data/storage, transactional services
Flat-Rate Pricing Deep Dive
Pros:
- Simplest to understand and sell
- Totally predictable for customers
- Low friction onboarding
- Good for small businesses
Cons:
- No natural expansion revenue
- Leaves money on table from power users
- Hard to monetize growing customers
- Limited pricing flexibility
Best for: Consumer apps, simple tools, content/media, standardized services
Hybrid Pricing Models
Many successful SaaS companies combine models:
- Base + Usage: $49/month + $0.01 per email (Mailchimp)
- Seat + Features: $10/user for Basic, $25/user for Pro (tiered per-seat)
- Flat + Overages: $99/month for 10,000 contacts, $10 per 1,000 additional
- Freemium + Seat: Free up to 5 users, then $10/user (Notion)
How to Choose Your SaaS Pricing Model
- Identify Value Metric: What increases as customers get more value? (users, usage, features, outcomes)
- Understand Buying Process: Who approves budget? How do they prefer to pay?
- Analyze Competitors: What models do competitors use? Can you differentiate?
- Test with Customers: Interview 10-20 prospects on willingness to pay
- Model Revenue: Project MRR/ARR under each model with expected customer distribution
- Start Simple: Launch with one model, iterate based on data
SaaS Pricing Best Practices
- Align Price to Value: Customers who get more value should pay more
- Keep It Simple: Customers should easily predict their bill
- Provide Transparency: Show pricing publicly, no "contact sales" for SMB
- Enable Self-Serve: Let customers upgrade/downgrade without talking to sales
- Test Pricing: A/B test prices with new customers, grandfathering existing
- Raise Prices Annually: 5-10% increases for new customers as you add value
Common SaaS Pricing Mistakes
- Too Many Tiers: 3-4 tiers max, more causes decision paralysis
- Unclear Differentiation: Make tier differences obvious (10 vs unlimited, basic vs advanced)
- Pricing Too Low: Most SaaS products are underpriced (easier to discount than raise)
- Ignoring Expansion: No path for customers to spend more as they grow
- Complex Calculations: Customers can't easily calculate cost = friction
- Not Experimenting: Pricing should evolve as you learn what customers value