継続的な料金体系モデル

Pricing models are patterns that represent your business on Stripe and consists of the products or services you sell, how much they cost, what currency you accept for payments, and the service interval for subscriptions. To build the pricing model, you use products—what you sell—and prices—how much and how often to charge for your products.

定額料金

Many SaaS businesses offer their customers a choice of escalating service options. Customers choose a service tier and pay a flat rate for it. Imagine a business called Togethere that sells a collaboration platform. They offer three different service levels: basic, starter, and enterprise. For each service level, they offer a monthly and yearly price.

Flat-rate pricing model

In this example, Togethere has three products: Basic, Starter, and Enterprise. Each product has several different prices. The basic level has prices for 10 USD per month and 100 USD per year. Both prices are for the same Basic product, so they share the same product description on the customer’s receipt and invoice.

Per-seat pricing

Per-seat pricing is a linear pricing model where the number of seats (for example, software licenses) maps to the number of units (for example, users). Togethere, our example collaboration platform company, also wants to offer a per-seat plan. Togethere’s customers pick how many seats they’ll use, and Togethere charges based on that amount.

ユーザー数単位の料金体系モデル

To create a model for this scenario, Togethere creates a product and price structure where each unit represents a user. When Togethere creates a subscription for a customer, the customer specifies the number of users for that subscription.

段階制料金

Prices can represent tiers, allowing the unit cost to change with quantity or usage. Use tiers if you need non-linear pricing when quantity or usage changes. You can also combine tiered pricing with base fees to create usage-based pricing models.

For example, Togethere wants to offer lower rates for customers who use more projects per month. The following tiered pricing models show two different ways to adjust pricing as usage increases: volume-based pricing and graduated pricing. To demonstrate these approaches to tiered pricing, we’ll use the following tiers:

従量ベースの料金体系

With volume-based pricing, the subscription item bills at the tier corresponding to the amount of usage at the end of the period. The entire quantity (or usage) is multiplied by the unit cost of the tier. Because the tier price applies to the entire quantity (or usage), the total might decrease when calculating the final cost.

For example, a customer with 5 projects is charged 35 USD (5 × 7 USD). If they accumulate 6 projects the following month, then all projects bill at the 6-10 rate. That month, they’re charged 39 USD (6 × 6.50 USD).

段階的な料金体系

While similar to volume pricing, graduated pricing charges for the usage in each tier instead of applying a single price for overall usage. The quantity is multiplied by the amount for each tier and the totals for each tier are summed together.

For example, 5 projects result in the same charge as volume-based pricing—35 USD total at 7 USD per project. This changes as usage exceeds the first tier. A customer with more than 5 projects is charged 7 USD per project for the first 5 projects, then 6.50 USD for projects 6 through 10, and finally 6 USD per project thereafter. A customer with 6 projects is charged 41.50 USD, 35 USD for the first 5 projects and 6.50 USD for the 6th project.

定額料金を追加する

You can specify a flat fee (flat_amount) to add to the invoice. This works for both volume and graduated pricing. For example, you can have a flat fee that increases when your customer exceeds certain usage thresholds:

Volume-based pricing flat fee example

If quantity is 12 and tiers_mode=volume, the total amount billed is:

12 × 3 USD + 30 USD = 66 USD

Graduated pricing flat fee example

If quantity is 12 and tiers_mode=graduated, the total amount billed is:

(5 × 5 USD + 10 USD) + (5 × 4 USD + 20 USD) + (2 × 3 USD + 30 USD) = 111 USD

A tier can have either a unit_amount or a flat_amount, or both, but it must have at least one of the two. If quantity is 0, the total amount is 10 USD regardless of the tiered pricing model used. Stripe always bills the first flat fee tier when quantity=0. To bill 0 when there’s no usage, set up an up_to=1 tier with an unit_amount equal to the flat fee and omit the flat_amount.

従量課金

Usage-based pricing enables you to charge based on a customer’s usage of your product or service. Usage-based pricing includes models such as fixed fee and overage, pay as you go, and credit burndown.

Fixed fee and overage

Use the fixed fee and overage model to charge a flat fee per month for your service at the beginning of the period. The flat fee has some included usage entitlement, and any additional usage (overage) charges at the end of the period.

You can use the Stripe Dashboard or API to set this up with two prices within the same product. For example, Alpaca AI introduces an advanced model called Llama AI. Priced at 200 USD per month, this model includes 100,000 tokens. They charge any usage above the included tokens at an additional rate of 0.001 USD per token.

Pay as you go

The pay as you go model (also called “in arrears billing”) lets you track usage incurred over a determined period, then charge the customer at the end of the period.

You can use any of the following pricing strategies:

• Per unit: Charge the same amount for each unit.
• Per package: Charge an amount for a package or bundle of units or usage.
• Volume-based pricing: Charge the subscription item at the tier that corresponds to the usage amount at the end of the period.
• Graduated pricing: Charge for the usage in each tier instead of applying a single price to all usage.

This model might cause customers to accumulate significant usage, and affect their payment method status at the end of the month.

Credit burndown

The credit burndown model lets you collect prepayment for usage-based products and services. Customers can use billing credits to pay an initial amount, and then apply their billing credits as they use the product.

For example, Alpaca AI wants to sell a large enterprise contract to an existing self-serve customer for their new Llama AI Model. The customer commits to pay 100,000 USD up front for Llama AI, so they can get 120,000 USD of billing credit usage to use within 1 year.