Blended Pricing
What Is Blended Pricing? Definition and How It Works
Definition
Blended pricing is a card acceptance pricing model where the merchant pays a single flat-rate percentage on all transactions regardless of card type, combining interchange fees, scheme fees, and acquirer margin into one undifferentiated rate.
How it works
In a blended pricing model the acquirer or payment service provider calculates a single rate that covers interchange costs (which vary by card type), card scheme fees, and the acquirer's margin, and presents this as a flat percentage to the merchant. The merchant pays the same rate whether a transaction is made on a low-interchange debit card or a high-interchange premium commercial credit card.
The simplicity of blended pricing appeals to merchants who want predictable single-rate billing without the complexity of understanding interchange categories. For very small merchants with low volume and simple card mix, blended pricing is administratively simpler.
However, blended pricing creates an information asymmetry that consistently favours the acquirer over the merchant. Because the blended rate must be set high enough to cover the acquirer's worst-case card mix, merchants with a favourable card mix (predominantly consumer debit) overpay. The merchant cannot see the actual underlying interchange costs and therefore cannot verify whether the blended rate is fair.
Blended pricing also obscures the impact of mix changes. If a merchant's card mix shifts toward more premium credit cards, the actual cost increases, but the blended rate stays the same until renewal.
Why it matters
A single rate means simple monthly billing and easy cost-per-transaction calculation with no need to understand interchange categories or scheme fee schedules. Merchants with predominantly debit card volume systematically overpay under blended pricing versus interchange-plus. Merchants cannot verify whether their blended rate fairly reflects their actual interchange cost profile; the acquirer has full visibility of the card mix but the merchant does not. Blended rates are typically reviewed at contract renewal; significant rate increases can occur without the merchant having the benchmark data to evaluate the change. High-volume merchants should evaluate switching to interchange-plus pricing; savings typically increase proportionally with processing volume.
With PXP
PXP offers interchange-plus pricing for enterprise merchants, providing full cost transparency and the ability to model true acceptance costs. PXP's reporting shows interchange categories and scheme fees separately, enabling merchants to understand their complete cost structure by card type and channel.
Frequently asked questions
What is the difference between blended pricing and interchange-plus pricing?
Blended pricing: one flat rate covers all transactions regardless of card type. Interchange-plus pricing: the actual interchange rate for each transaction is passed through at cost plus a fixed acquirer markup. A merchant with mostly debit transactions pays approximately 0.5% (0.2% interchange + 0.3% margin) under interchange-plus but 1.8% under blended, overpaying by 1.3% on debit transactions.
How does a merchant calculate whether they are overpaying on blended pricing?
To assess blended pricing value: (1) obtain your blended rate from your current agreement; (2) get a breakdown of your transaction volume by card type; (3) apply the published interchange rates for your card mix (Visa and Mastercard publish interchange rate tables); (4) calculate the weighted average interchange cost for your mix; (5) add estimated scheme fees; (6) compare this calculated cost to your blended rate. The difference between your blended rate and your calculated cost is the acquirer's effective margin.
Can blended pricing ever be better than interchange-plus for a merchant?
In specific circumstances yes. For merchants with very low volume (below USD 10,000/month) the administrative simplicity of blended pricing may be valued over the potential savings from interchange-plus. For merchants where the effort of monitoring interchange categories exceeds the potential savings blended pricing's simplicity may be a practical choice. Generally however merchants processing significant volume benefit from switching to interchange-plus.
What fees are included in a blended pricing rate?
A blended rate combines: interchange (the dominant cost component paid to the card-issuing bank varying by card type); card scheme fees (assessment fees paid to Visa/Mastercard typically 0.05-0.15%); and the acquirer's margin. In a true blended model all three are rolled into the single percentage. Some acquirers add separate monthly fees or per-transaction authorisation fees on top; merchants should identify all fees in their effective rate calculation rather than relying on the headline blended percentage alone.
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