Cost-Plus Pricing vs. Bundled Pricing: Which is Best for Your Business?
In this blog, we’ll explain cost-plus pricing vs flat-rate pricing. We’ll also provide guidance on what factors to consider when deciding which pricing model is best for your business.
Comparing Cost-Plus Pricing and Flat-Rate Pricing
Although both pricing models allow businesses to accept electronic payments, they approach transaction pricing differently.
Cost-Plus Pricing
Under a cost-plus pricing model, businesses pay:
- Interchange fees
- Card network assessment fees
- Processor markup
Since each transaction is priced based on its actual costs, merchants can see exactly what they are paying and where their fees originate.
This pricing structure is commonly offered through traditional merchant account providers and is often preferred by businesses seeking transparency and long-term cost optimization.
Flat-Rate Pricing
Flat-rate pricing simplifies payment acceptance by charging the same fee for every transaction.
For example: 2.9% + $0.30 per transaction
Under this model, businesses pay the same rate whether the customer uses:
- A debit card
- A rewards credit card
- A commercial card
- A purchasing card
Merchant Accounts vs Payment Service Providers (PSPs)
To understand payment processing pricing, it’s important to understand the difference between a traditional merchant account and a Payment Service Provider (PSP).
Traditional Merchant Accounts
Merchant account providers typically offer:
- Dedicated merchant accounts
- Greater pricing transparency
- Customized processing solutions
- Detailed reporting
- Cost-plus pricing options
Merchant accounts are often a strong fit for businesses with established payment volume or long-term growth plans.
Payment Service Providers (PSPs)
Payment Service Providers (PSPs) allow businesses to begin accepting payments quickly without obtaining a dedicated merchant account.
Examples include:
- Stripe
- Square
- PayPal
PSPs typically use flat-rate pricing because it provides:
- Simple onboarding
- Predictable billing
- Faster account setup
- Minimal underwriting requirements
For startups and lower-volume businesses, PSPs can be attractive. However, as transaction volume grows, many businesses evaluate whether a traditional merchant account and cost-plus pricing model can provide better long-term value.
Why Payment Type Matters
Not all transactions cost the same to process. Factors that influence payment costs include:
- Debit versus credit cards
- Card-present versus card-not-present transactions
- Rewards and premium card programs
- Commercial cards
- Industry type
- Transaction data quality
Because transaction costs vary, a pricing model that charges the same rate for every payment may not always represent the lowest-cost option.
How Debit Card Transactions Can Affect Costs
One of the clearest differences between cost-plus pricing and flat-rate pricing is how debit card transactions are treated.
Debit cards often carry lower interchange costs than credit cards. Under a cost-plus pricing model, merchants benefit directly from those lower costs.
With flat-rate pricing, the transaction is charged the same rate regardless of the actual debit card processing cost.
Example: $100 Debit Card Transaction
Cost-Plus Pricing
Interchange Fee: $0.26
Assessment Fee: $0.02
Processor Markup: $0.15
Total Cost: $0.43
Flat-Rate Pricing
2.9% + $0.30
Total Cost: $3.20
Comparison
Cost-Plus Pricing: $0.43
Flat-Rate Pricing: $3.20
Difference: $2.77
Actual costs vary depending on card type, processor markup, and transaction qualification, but this example illustrates why businesses with significant debit card volume often evaluate cost-plus pricing as they grow.
Which Pricing Model Is Right for Your Business?
When comparing cost-plus pricing vs flat-rate pricing, there is no one-size-fits-all answer. The best option depends on your transaction volume, payment mix, business model, and growth objectives.
Cost-Plus Pricing May Be a Better Fit If You:
- Process a high volume of transactions
- Want visibility into payment costs
- Need detailed reporting
- Accept recurring payments
- Operate a subscription business
- Want to optimize payment processing expenses
Flat-Rate Pricing May Be a Better Fit If You:
- Are launching a new business
- Have relatively low transaction volume
- Prioritize simple billing
- Need fast account setup
- Prefer minimal pricing complexity
Many businesses begin with a PSP and transition to a merchant account as payment volume increases and cost optimization becomes a higher priority.
The Long-Term Impact of Pricing Models
The difference between pricing models may appear small when reviewing a single transaction, but processing costs accumulate over time.
As transaction volume increases, businesses often begin asking questions such as:
- Can I reduce payment processing costs?
- Am I paying too much in fees?
- Do I understand my processing statement?
- Would a different pricing model save money?
Organizations that regularly review their payment acceptance strategy are often better positioned to identify opportunities for cost savings and operational improvements.
Final Thoughts
Both cost-plus pricing and flat-rate pricing have a place in the payments industry. Flat-rate pricing provides simplicity, predictability, and fast onboarding, making it an attractive option for startups and lower-volume businesses. Cost-plus pricing offers greater transparency and may provide significant savings for growing organizations that want more visibility into their payment processing expenses.
Before choosing a payment provider, consider your transaction volume, payment mix, reporting requirements, and long-term growth plans. The right pricing model can help support your business today while positioning you for future growth.
Curious how much you could save? Use Payway’s Savings Calculator to compare your current payment processing costs and discover potential savings opportunities.
Frequently Asked Questions
What is the difference between cost-plus pricing vs flat-rate pricing?
Cost-plus pricing charges the actual transaction costs plus a processor markup, while flat-rate pricing charges the same rate for every transaction regardless of the underlying costs.
Is flat-rate pricing the same as bundled pricing?
In many cases, yes. Both terms are commonly used to describe pricing models that package processing costs into a single rate for each transaction.
Why do PSPs use flat-rate pricing?
PSPs often use flat-rate pricing because it simplifies onboarding, pricing, underwriting, and billing for small and growing businesses.
Are merchant accounts cheaper than PSPs?
Not always. However, businesses with growing transaction volume often find that traditional merchant accounts provide greater pricing transparency and may reduce overall processing costs.
Why do debit card transactions often cost less under cost-plus pricing?
Debit card interchange fees are often lower than credit card interchange fees. Cost-plus pricing passes those savings to the merchant, while flat-rate pricing charges the same rate regardless of card type.
Which pricing model is best for subscription businesses?
Many subscription businesses prefer cost-plus pricing because recurring transactions create opportunities for long-term cost savings and payment optimization.
Can businesses switch from flat-rate pricing to cost-plus pricing?
Yes. Many businesses start with a PSP and later migrate to a merchant account provider offering cost-plus pricing as transaction volume and payment complexity increase.
How do I know if I am paying too much for payment processing?
Reviewing your merchant statements, understanding your pricing model, and comparing processing costs regularly can help identify opportunities for savings.
Related Resources
Merchant Accounts: What You Need to Know
Payment Gateways and Merchant Accounts: Why You Need Both for Seamless Payment Processing
Merchant Accounts vs. Payment Service Providers: Which Should You Choose?
Exploring Beyond Stripe: Why it Might be Time to Say Goodbye and Discover New Stripe Alternatives