The first time I really understood two-part pricing was at a golf course. I paid $5,000 for an annual membership. Then I paid $65 every time I played a round. The membership got me through the door. The per-round fee paid for the actual experience. And the whole time, I felt like I was getting a deal because the round fee was "only" $65 (it would have been $120 as a non-member). That's two-part pricing in its purest form, and it is everywhere once you start looking.
Two-part pricing (also called a two-part tariff in economics) is a pricing strategy where customers pay two separate charges: a fixed fee for access, and a variable fee based on usage. The fixed fee captures a portion of consumer surplus upfront. The variable fee captures revenue as consumption occurs. Together, they allow a seller to extract more total revenue than either charge could generate alone.
The Economics Behind Two-Part Pricing
The theory goes back to Walter Oi's 1971 paper on Disneyland pricing, which became one of the foundational texts in pricing economics. Oi observed that Disneyland could maximize profit by charging an entry fee (capturing consumer surplus) and then setting the per-ride price at or near marginal cost (maximizing quantity consumed).
The formal economic model works like this: the fixed fee is set equal to (or approaching) the consumer surplus that the buyer would enjoy at the per-unit price. The per-unit price is set at or near marginal cost. The result is a firm that captures nearly all of the consumer surplus while still selling the efficient quantity of goods.
In practice, things are messier. Companies can't perfectly observe each customer's willingness to pay, so the fixed fee is usually set at a level that works for the marginal customer you want to include, not at the maximum any single customer would pay.
What makes this interesting for marketers is that two-part pricing isn't just an economic curiosity. It's a practical strategy that shows up across dozens of industries, from SaaS platforms to amusement parks to mobile phone plans.
How Two-Part Pricing Works in Practice
The mechanics are simple. The design decisions are not.
Component | Purpose | Economic Effect | Customer Perception |
Fixed Fee (membership, subscription, access charge) | Capture consumer surplus, create commitment | Transfers value from buyer to seller upfront | "I'm invested now, I should use it" |
Variable Fee (per-use, per-unit, per-transaction) | Capture revenue proportional to consumption | Allows price near marginal cost, maximizes usage | "Each use is cheap because I already paid" |
The psychology is key. The fixed fee creates a sunk cost that motivates usage. The low variable fee makes each incremental use feel like a bargain. Vaia's analysis of two-part tariffs notes that this structure results in an allocatively efficient outcome (price per unit equals marginal cost), even though the total price paid by the consumer is significantly higher than in a single-price model.
Two-Part Pricing vs. Related Strategies
I think it's worth clarifying how two-part pricing relates to a few concepts that people often confuse it with.
Strategy | Structure | Key Difference from Two-Part Pricing |
Two-Part Pricing | Fixed fee + per-use variable fee | Both components required for access and usage |
Low base product + expensive consumables | Variable cost is on a different product (razors/blades) | |
Loss-leader base + profitable complement | One product subsidizes the other | |
Different prices for different segments | Can be done without a two-part structure | |
Tiered feature bundles at set prices | Fixed prices per tier, not usage-based | |
Freemium | Free base + paid premium tier | No fixed fee for the base offering |
Captive pricing is probably the closest cousin. The razor-and-blade model (cheap handle, expensive cartridges) has a similar economic structure. But the difference is that in captive pricing, the "fixed" component (the razor) is often sold at or below cost as a loss leader, while the variable component (blades) is where the profit lives. In two-part pricing, both components are designed to be profitable.
Real-World Examples Across Industries
Amusement parks. Disneyland was the original academic example. Today, Disney charges park admission (fixed fee) and then monetizes through food, merchandise, and premium experiences like Lightning Lane (variable usage). Six Flags and Cedar Fair use season pass models where the fixed fee is the pass and the variable fees are parking, food, and fast passes.
Gym memberships. Planet Fitness charges a monthly membership fee ($15-25) and then charges for additional services like tanning, massage chairs, and guest passes. ClassPass takes it further with a credit-based system: fixed monthly fee for a credit allotment, then credits consumed per class booked.
SaaS platforms. Marketer Milk identifies this as one of the dominant SaaS pricing patterns. Salesforce charges a per-seat license fee (fixed) plus API call overages and add-on modules (variable). HubSpot charges a platform fee plus per-contact pricing above certain thresholds. GrowthUnhinged's 2025 analysis shows credit-based models (a form of two-part pricing) growing rapidly, with 79 of 500 tracked SaaS companies now offering credit models, up from 35 at the end of 2024.
Telecommunications. Mobile phone plans with a base monthly charge plus per-GB data overage fees are classic two-part pricing. The industry has largely moved toward "unlimited" plans (which are really fixed-fee only), but business plans and IoT contracts still commonly use two-part structures.
Costco and warehouse clubs. The annual membership fee ($65-130) is the fixed component. Products are priced near cost (the variable component). Costco's entire business model is a two-part tariff where the membership fee IS the profit and the merchandise is priced at near-zero margin.
When Two-Part Pricing Works Best
Two-part pricing is most effective when several conditions are present:
High consumer surplus. If customers value the product significantly more than the marginal cost, there's room for a fixed fee to capture that surplus without deterring consumption.
Repeat usage. The fixed fee only makes sense if customers will use the product multiple times. A one-time purchase doesn't support a two-part structure.
Heterogeneous demand. When customers have varying levels of demand, two-part pricing allows heavy users to pay more (through higher variable fees) while the fixed fee ensures even light users contribute to fixed costs.
Competitive differentiation. In markets where competitors use simple per-unit pricing, a two-part model can feel like better value to heavy users while creating switching costs through the fixed fee commitment.
The Strategic Tradeoffs
Two-part pricing isn't free money. There are real tradeoffs that marketers need to consider.
The fixed fee creates a barrier to entry. Every potential customer who won't pay the fixed fee is a customer you lose. If your fixed fee is too high, you shrink your addressable market. Price segmentation through tiered fixed fees (basic/premium/enterprise) can partially address this.
The variable fee affects usage patterns. If the per-use charge is too high, customers won't use the product enough to perceive value, and they'll churn when the fixed fee renewal comes up. If it's too low, you're leaving money on the table.
Transparency matters. Customers increasingly expect price transparency. A two-part structure that feels like nickel-and-diming ("I already paid $99/month, why are you charging me extra for this?") creates resentment. The best two-part pricing models feel fair because the fixed fee delivers clear base value and the variable fee is proportional to genuine additional consumption.
Two-Part Pricing in the AI/SaaS Era (2024-2026)
The most interesting evolution of two-part pricing right now is happening in AI-powered software. Companies like OpenAI, Anthropic, and their downstream users are adopting credit-based pricing models that are essentially two-part tariffs: a monthly subscription fee for access (fixed), plus token/credit consumption for actual AI usage (variable).
Chargebee reports that usage-based pricing components (the variable part of two-part pricing) are becoming standard in SaaS, with most high-growth B2B platforms now incorporating some form of consumption pricing alongside their base subscription.
This makes sense. AI costs are directly tied to compute usage. A flat subscription would either overprice light users or underprice heavy ones. Two-part pricing aligns the cost structure with actual value delivered.
Thought Leaders and Key Organizations
Walter Oi (University of Rochester) published the foundational paper on two-part tariffs using Disneyland as the case study, establishing the economic framework still taught today.
Jean Tirole (Nobel laureate) extended two-part tariff theory in his work on industrial organization and platform economics.
Madhavan Ramanujam (Simon-Kucher & Partners) has written extensively about modern pricing strategy, including how two-part models apply to subscription businesses.
Kyle Poyar (GrowthUnhinged, formerly OpenView Partners) tracks the evolution of usage-based and hybrid pricing models in SaaS, providing the most current data on adoption trends.
FAQs
What is two-part pricing?
Two-part pricing is a strategy where customers pay two separate charges: a fixed fee for access or membership, and a variable fee based on actual usage or consumption. Examples include gym memberships with per-class fees, Costco's annual membership plus near-cost products, and SaaS subscriptions with usage-based overages.
What is the economic theory behind two-part pricing?
The theory, formalized by Walter Oi in 1971, shows that a firm can maximize profits by setting the fixed fee to capture consumer surplus and the per-unit price at or near marginal cost. This extracts more total revenue than a single-price model.
How is two-part pricing different from captive pricing?
In captive pricing (razor/blade model), the base product is sold cheap and the consumable is priced high. In two-part pricing, both the fixed fee and the variable fee can be profitable, and the variable fee is typically set near marginal cost to encourage usage.
What industries commonly use two-part pricing?
Common industries include fitness/recreation (gym memberships), entertainment (amusement parks), telecommunications (phone plans), SaaS (subscription + usage), retail (warehouse club memberships), and professional services (retainer + hourly fees).
Why do SaaS companies use two-part pricing?
SaaS companies use two-part pricing to align revenue with value delivery. The subscription fee covers base infrastructure costs and provides revenue predictability, while usage-based charges scale with actual consumption, ensuring heavy users pay proportionally more.
What is the optimal split between fixed and variable fees?
There's no universal answer. The optimal split depends on customer price sensitivity, competitive alternatives, cost structure, and desired usage patterns. Generally, a lower fixed fee maximizes adoption while a higher variable fee maximizes revenue from heavy users.
Can two-part pricing backfire?
Yes. If the fixed fee is too high, it deters sign-ups. If the variable fee is too high, it discourages usage and increases churn. And if the structure feels like nickel-and-diming, it damages brand perception and customer satisfaction.
How does two-part pricing relate to price discrimination?
Two-part pricing is a form of second-degree price discrimination. By charging both a fixed and variable component, the seller effectively charges different total prices to customers with different usage levels, extracting more surplus from heavy users.
Sources & References
- Wikipedia. "Two-Part Tariff." wikipedia.org
- Social Sci LibreTexts. "Two-Part Pricing." socialsci.libretexts.org
- Vaia. "Two-Part Tariff: Advantages & Pricing." vaia.com
- Marketer Milk. "5 B2B SaaS Pricing Models Working in 2025." marketermilk.com
- GrowthUnhinged. "What Actually Works in SaaS Pricing Right Now." growthunhinged.com
- Chargebee. "SaaS Pricing Models Guide." chargebee.com
- MIT OpenCourseWare. "Price Discrimination and Two Part Tariff." ocw.mit.edu
- Cobloom. "The Ultimate Guide to SaaS Pricing Models, Strategies & Psychological Hacks." cobloom.com
Written by Conan Pesci | April 5, 2026 | Markeview.com
Markeview is a subsidiary of Green Flag Digital LLC.