Blended Pricing

What Is Blended Pricing?

Blended pricing (also called flat-rate pricing) is a payment processing model where a payment processor charges every transaction at the same rate, regardless of the card brand (Visa, Mastercard, Amex), card type (debit, credit, rewards, corporate), or transaction method (swiped, keyed, online). The processor absorbs the variable underlying costs and profits from the spread between what it pays in interchange and what it collects from the merchant.

This model became mainstream with the rise of payment facilitators like Stripe, Square, and PayPal in the early 2010s. Before that, most merchants dealt with traditional merchant accounts that used interchange-plus or tiered pricing, both of which required understanding complex fee schedules. Blended pricing removed that complexity: sign up, see one rate, start accepting cards.

The tradeoff is transparency. Under blended pricing, the merchant never sees how much of their fee goes to the issuing bank, how much goes to the card network, and how much is the processor's margin. The processor has full information about interchange costs; the merchant does not. This information asymmetry is the core tension of the model.

How It Works

Every card transaction involves multiple parties, each taking a cut of the merchant discount rate (MDR): the total fee the merchant pays to accept a card payment.

The Three Fee Components

Under any pricing model, the underlying cost of processing a card transaction consists of three layers:

1. Interchange fee: paid to the cardholder's issuing bank. This is the largest component, typically ranging from 0.2% for regulated debit cards to over 3% for premium rewards or corporate cards. The rate depends on card type, merchant category, and transaction method.
2. Scheme (assessment) fee: paid to the card network (Visa, Mastercard) for using its infrastructure. These are typically small, around 0.13% to 0.15% plus a few cents per transaction.
3. Processor markup: the acquirer or payment processor's margin for providing the merchant with payment acceptance, fraud tools, reporting, and settlement.

With blended pricing, these three components are invisible to the merchant. The processor quotes a single rate that covers all three. For example, if a processor charges 2.9% + $0.30:

Transaction: $100 online purchase with a standard Visa credit card

Blended pricing (what the merchant sees):
  Processing fee: $100 × 2.9% + $0.30 = $3.20

What the processor actually pays:
  Interchange:   $100 × 1.65% = $1.65
  Scheme fee:    $100 × 0.14% = $0.14
  Total cost:                    $1.79

Processor margin: $3.20 - $1.79 = $1.41 (44% gross margin)

This margin varies dramatically by card type. A regulated debit card with 0.05% + $0.21 interchange leaves the processor with over $2.70 in margin on the same $100 transaction. A premium rewards card with 2.5% interchange leaves only $0.41. The processor sets the blended rate high enough to remain profitable across the average card mix.

Blended vs Interchange-Plus vs Tiered

Three pricing models dominate card processing, each making different tradeoffs between simplicity and cost transparency:

Interchange-plus pricing is the most cost-effective model for merchants with volume, because they pay the actual interchange cost plus a small, transparent markup. A merchant processing $50,000 per month with a favorable card mix can save hundreds of dollars monthly by switching from blended to interchange-plus.

Tiered pricing sorts transactions into buckets, but the processor controls which transactions land in which tier. A "qualified" rate might look attractive, but the processor can route most transactions into the more expensive "mid-qualified" or "non-qualified" tiers. This model is generally considered the least merchant-friendly.

Current Blended Pricing Examples

As of 2026, the major blended-pricing processors in the US charge the following rates:

These rates apply to standard domestic card transactions. International cards, currency conversion, and manual card entry all carry additional surcharges, often adding 1% to 1.5% on top of the base rate.

Use Cases

Small and New Businesses

Blended pricing is designed for merchants who process low volumes (typically under $10,000 to $20,000 per month) and prioritize fast onboarding over fee optimization. A coffee shop processing $5,000 monthly might overpay by $30 to $50 compared to interchange-plus, but the simplicity of a single predictable rate and no monthly minimums, gateway fees, or long-term contracts is worth the premium.

E-Commerce and SaaS Platforms

Online businesses benefit from blended pricing when their card mix skews toward higher-interchange card types (rewards cards, corporate cards, international cards). In this scenario, the blended rate can actually be competitive with interchange-plus because the processor subsidizes high-interchange transactions with profits from low-interchange ones.

Payment Facilitators and Marketplaces

Payment facilitators (PayFacs) often use blended pricing for their sub-merchants because it simplifies onboarding and billing across thousands of sellers. Platforms like Shopify Payments and Squarespace Commerce pass through a blended rate to merchants, adding their own margin on top.

Why It Matters for Crypto Payments

Blended pricing exists because the traditional card payment stack has inherent complexity: hundreds of interchange categories, multiple card networks, issuing and acquiring banks, and a web of assessment fees. Someone has to absorb that complexity, and blended pricing puts that burden on the processor.

Crypto and stablecoin payment rails eliminate this complexity entirely. There is no interchange because there is no issuing bank. There are no scheme fees because there is no card network. The settlement is direct: a push payment from buyer to seller, with only a network fee and (optionally) a processor's margin.

Stablecoin payment processors like Stripe (for USDC), Coinbase Commerce, and BitPay currently charge between 0.75% and 2% per transaction: roughly half the cost of card-based blended pricing. More importantly, these payments carry no chargeback risk (transactions settle with finality), no cross-border surcharges, and no interchange variability.

For merchants already frustrated by the opacity of blended pricing but unwilling to manage interchange-plus complexity, stablecoin rails offer a third path: simplicity and low cost, without the information asymmetry. Learn more about how these rails compare in our stablecoin payment rails vs traditional processing deep dive.

Risks and Considerations

Overpaying at Scale

The most significant risk of blended pricing is paying more than necessary as transaction volume grows. A merchant processing $100,000 per month at 2.9% + $0.30 pays roughly $3,200 in fees. On interchange-plus at IC + 0.3% + $0.10, the same volume might cost $2,200 to $2,500 depending on card mix: a difference of $700 to $1,000 per month. Over a year, that gap funds a meaningful upgrade in payment infrastructure.

Hidden Surcharges

The headline blended rate rarely tells the full story. Most processors add surcharges for international cards (typically +1% to +1.5%), currency conversion (+1%), manually keyed transactions (+0.5%), and disputed transactions ($15 to $25 per dispute). A merchant whose customer base includes international buyers may find their effective rate well above the advertised blended rate.

Lack of Optimization Levers

Under interchange-plus pricing, merchants can take concrete steps to lower costs: encouraging debit over credit, card-present transactions over card-not-present, and Level 2/Level 3 data submission for B2B transactions. Under blended pricing, none of these optimizations matter because the rate is the same regardless. Merchants lose the ability to influence their own fee structure.

Interchange Fee Settlement Impact

The 2024 Visa/Mastercard interchange fee settlement (valued at approximately $38 billion in projected merchant savings) will lower standard interchange rates by 0.1 percentage points and cap consumer card interchange for eight years. Under interchange-plus pricing, these savings pass directly to merchants. Under blended pricing, there is no guarantee that processors will reduce their flat rate to reflect lower interchange costs: the savings may be retained as additional processor margin.

Blended Pricing vs Crypto: A Fee Comparison

The structural difference between card-based and crypto-based payment fees illustrates why payment rails matter:

For a deeper analysis of how crypto payment processing compares to traditional card processing costs, see our research on merchant payment acceptance costs.

This glossary entry is for informational purposes only and does not constitute financial or investment advice. Always do your own research before using any protocol or technology.