Why do merchants accept Mastercard more than American Express?

Mastercard operates as a payment network with 90+ million merchant partners globally, while American Express functions as both issuer and network with only ~12 million merchant locations. Mastercard's lower merchant discount rates (1.5-3.5% vs Amex's 2.5-3.5%+) and support across all credit tiers makes it economically attractive for small and mid-sized merchants. American Express historically focused on premium customers, limiting merchant incentive to accept the card.

What is the difference between OptBlue and Amex Direct programs?

OptBlue is American Express's program designed for smaller merchants with tiered pricing starting at 2.5-3.5% discount rates. Amex Direct targets high-volume merchants with 3.5%+ discount rates but offers volume-based discounts and advanced merchant analytics. Both programs exist because Amex recognized smaller merchants needed more accessible acceptance options, but rates remain higher than Mastercard's standard interchange.

Which card network is better for international travel merchants?

Mastercard wins decisively for international merchants. With presence in 150+ countries and 90+ million merchant locations, Mastercard cardholders can use their cards almost universally. American Express has limited acceptance in emerging markets, developing nations, and rural areas—making it risky for merchants serving international tourists or diaspora communities unless they specifically target affluent Western travelers.

Can small businesses accept American Express cards profitably?

Yes, but with higher costs than Mastercard. Small businesses can use American Express OptBlue (2.5-3.5% discount rates) designed specifically for them. However, Mastercard's standard rates (1.5-3.5%) are lower, and Mastercard's wider acceptance means customers expect to use it. Small merchants typically accept both, but Mastercard's lower costs and broader cardholder base make it the primary network for profitability.

Why does American Express charge higher merchant fees than Mastercard?

American Express cardholders spend 3-4x more annually than average Mastercard cardholders ($14,000 vs $5,250), giving merchants access to premium-spending customers. Amex's higher fees ($2.50-$3.50 per $100) reflect this customer value proposition and more robust fraud protection. Amex positions premium service and cardholder quality as justifying the cost premium, while Mastercard competes on accessibility and volume.

Mastercard vs American Express Merchant Acceptance 2026

Updated May 4, 2026

Mastercard

Global payment network accepted at 90+ million merchants worldwide with support for all credit tiers.

Merchants globally seeking maximum customer reach, small businesses, e-commerce, and international retailers

American Express

Dual issuer-network offering premium rewards and selective merchant acceptance focused on affluent consumers.

Premium merchants targeting affluent customers, luxury retailers, travel/hospitality, and high-ticket merchants in developed markets

Short Answer

Mastercard dominates global merchant acceptance with 90+ million locations worldwide, while American Express has selective acceptance limited to approximately 12 million merchants, making Mastercard the clear winner for universal payment coverage.

Our Verdict

Choose Mastercard if you operate a small-to-medium business needing maximum global reach, accepting payments from diverse customer bases, or operating in emerging markets where acceptance matters most. Choose American Express if you target affluent merchants and cardholders willing to pay premium discount rates for access to higher-spending customers and exclusive merchant programs.

Mastercard8.6

6.4American Express

Choose Mastercard if

Merchants globally seeking maximum customer reach, small businesses, e-commerce, and international retailers

Key Differences at a Glance

🔹

Global Merchant Acceptance: Mastercard wins (90+ million locations worldwide vs ~12 million merchants globally)

🔹

Acceptance in Developing Markets: Mastercard wins (Strong presence in 150+ countries vs Limited in emerging markets and rural areas)

🔹

Small Merchant Programs: Mastercard wins (Standard interchange, all merchant sizes supported vs OptBlue program for small merchants, Amex Direct for high volume)

See all 7 differences

Key Facts & Figures

Metric	Mastercard	American Express	Diff
Global Merchant Acceptance(millions)	40+ million locations	9 million locations	+344%
Typical Annual Fee (Premium Card)(USD)	$95-$195	$550	-74%
Average Merchant Fee(%)	1.9%

Key Differences

Mastercard

Attribute

American Express

90+ million locations worldwide🏆

Global Merchant Acceptance

~12 million merchants globally

Strong presence in 150+ countries🏆

Acceptance in Developing Markets

Limited in emerging markets and rural areas

Standard interchange, all merchant sizes supported🏆

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Last updated: May 4, 2026AI generated

Global Merchant Acceptance

Mastercard

90+ million locations worldwide🏆

American Express

~12 million merchants globally

Acceptance in Developing Markets

Mastercard

Strong presence in 150+ countries🏆

American Express

Limited in emerging markets and rural areas

Small Merchant Programs

Mastercard

Standard interchange, all merchant sizes supported🏆

American Express

OptBlue program for small merchants, Amex Direct for high volume

Card Issuer Model

Mastercard

Payment network only (issued by multiple banks)

American Express

Both issuer and payment network

Typical Merchant Discount Rate

Mastercard

1.5-3.5% standard🏆

American Express

2.5-3.5% OptBlue, 3.5%+ Amex Direct

Credit Requirements for Cardholders

Mastercard

Options for all credit levels🏆

American Express

Good to excellent credit required

2026 Security Features

Mastercard

AES-256 encryption standard

American Express

AES GCM cipher mode (March 2026 release)

Full Comparison

Attribute	Mastercard	American Express

Global Merchant Acceptance(millions)	40+ million locations	9 million locations

Typical Annual Fee (Premium Card)(USD)	$95-$195	$550
Typical Annual Fee Range(USD)	$95-$695	—

Average Merchant Fee(%)	1.9%	3.0%

Minimum Credit Score for Best Cards(score)	600+	750+

Travel Insurance Coverage	Varies by Issuer	Comprehensive (Premium Cards)
Rewards Consistency	Standardized across cards	—

Annual Revenue (2026)(billions USD)	$37B (Growth)	$175B
2025 Net Revenue(billion USD)	$30.2B	—

Reward Cashback Rate Range(%)	0.5%-5% (varies)	1.5%-6%
Travel Rewards Tier Classification(Premium Level)	Standard Issuer-Dependent	Premium Exclusive Benefits
Maximum Rewards Rate(X points per $1)	3X points	5X points

Dispute Resolution Speed(days)	30-90 days	30-60 days
Customer Service Type	Direct dedicated support	—

Global Merchant Acceptance Rate(%)	98%+	—

Merchant Discount Rate (Standard)(%)	1.43-2.4%	—
Cost Differential vs Visa(%)	Comparable pricing	—
Merchant Discount Rate Premium vs Visa(Percentage Points)	Industry Standard Baseline	0.30-0.50% Higher
Fee Structure Complexity (2025-2026)(Implementation Changes)	Sweeping Fee Changes Implemented	Established Fee Model

Small Merchant Program Availability	Standard rates only	—

International Expansion (2026 Status)	B2B program expansion ongoing	—
12-Month Merchant Acceptance Growth Rate(Percent)	Stable Mature Network	16% Year-over-Year Growth

Fee Restructuring Cycle	Sweeping changes throughout 2025-2026	—

Premium Cardholder Value	Mass-market cardholder base	—

Global Merchant Acceptance Coverage(Countries)	190+ Countries Worldwide	Strong U.S. + Growing International

Minimum Credit Score Requirement(Score Range)	All Credit Levels (550+)	Good to Excellent (650+)
Minimum Credit Score Required(FICO score)	Fair to Excellent (580+)	Good to Excellent (670+)

Small Business Merchant Program Threshold(USD Annual Volume)	Universal Program (Scalable)	OptBlue Program (<$1M)

Merchant Network Growth Since 2017(Times Expansion)	Steady Mature Expansion	5x Expansion (2017-2025)

Countries with Merchant Acceptance(countries)	190+ countries	150+ countries
Countries with Active Network(countries)	150+ countries	120+ countries

Fraud Liability Protection(USD)	$0 liability	$0 liability
Real-Time Fraud Monitoring	EMV 3DS 2.0 + Advanced Encryption	24/7 Real-Time Alerts
Encryption Standard (2026)(null)	AES-256 (industry standard)	AES GCM (March 2026 release)
Fraud Liability Protection	$0 liability 24/7	—

Purchase Protection Coverage Duration(days)	120 days	90 days

Annual Travel Credit Benefit(USD)	$200 annually	$600 annually

Business Expense Management Integration	Mastercard Send API + Platform	Amex Intelligence Dashboard

Global Merchant Acceptance(millions)	90+ million merchants	~12 million merchants

Typical Merchant Discount Rate - Standard(percent)	1.5-3.5%	2.5-3.5% OptBlue
Merchant Discount Rate - Premium Tier(percent)	2.5-3.5%	3.5%+ Amex Direct

Average Cardholder Annual Spending(USD)	$4,500-6,000	$12,000-16,000

Credit Score Requirement (Entry Level)(score)	580-620 (fair credit available)	670+ (good credit minimum)

Cardholder Acceptance Rate at Merchants(percent)	98% of US merchants, 85%+ internationally	95% of US merchants, 60%+ internationally

Countries Accepted(countries)	190+	—
Merchant Acceptance Rate(percent)	~94%	—

Business Model	Issuer + Network	—

Mastercard

American Express

Global Merchant Acceptance(millions)

40+ million locations

9 million locations

Typical Annual Fee (Premium Card)(USD)

$95-$195

$550

Typical Annual Fee Range(USD)

$95-$695

—

Average Merchant Fee(%)

1.9%

3.0%

Minimum Credit Score for Best Cards(score)

600+

750+

Travel Insurance Coverage

Varies by Issuer

Comprehensive (Premium Cards)

Rewards Consistency

Standardized across cards

—

Annual Revenue (2026)(billions USD)

$37B (Growth)

$175B

2025 Net Revenue(billion USD)

$30.2B

—

Reward Cashback Rate Range(%)

0.5%-5% (varies)

1.5%-6%

Travel Rewards Tier Classification(Premium Level)

Standard Issuer-Dependent

Premium Exclusive Benefits

Maximum Rewards Rate(X points per $1)

3X points

5X points

Dispute Resolution Speed(days)

30-90 days

30-60 days

Customer Service Type

Direct dedicated support

—

Global Merchant Acceptance Rate(%)

98%+

—

Merchant Discount Rate (Standard)(%)

1.43-2.4%

—

Cost Differential vs Visa(%)

Comparable pricing

—

Merchant Discount Rate Premium vs Visa(Percentage Points)

Industry Standard Baseline

0.30-0.50% Higher

Fee Structure Complexity (2025-2026)(Implementation Changes)

Sweeping Fee Changes Implemented

Established Fee Model

Small Merchant Program Availability

Standard rates only

—

International Expansion (2026 Status)

B2B program expansion ongoing

—

12-Month Merchant Acceptance Growth Rate(Percent)

Stable Mature Network

16% Year-over-Year Growth

Fee Restructuring Cycle

Sweeping changes throughout 2025-2026

—

Premium Cardholder Value

Mass-market cardholder base

—

Global Merchant Acceptance Coverage(Countries)

190+ Countries Worldwide

Strong U.S. + Growing International

Minimum Credit Score Requirement(Score Range)

All Credit Levels (550+)

Good to Excellent (650+)

Minimum Credit Score Required(FICO score)

Fair to Excellent (580+)

Good to Excellent (670+)

Small Business Merchant Program Threshold(USD Annual Volume)

Universal Program (Scalable)

OptBlue Program (<$1M)

Merchant Network Growth Since 2017(Times Expansion)

Steady Mature Expansion

5x Expansion (2017-2025)

Countries with Merchant Acceptance(countries)

190+ countries

150+ countries

Countries with Active Network(countries)

150+ countries

120+ countries

Fraud Liability Protection(USD)

$0 liability

Real-Time Fraud Monitoring

EMV 3DS 2.0 + Advanced Encryption

24/7 Real-Time Alerts

Encryption Standard (2026)(null)

AES-256 (industry standard)

AES GCM (March 2026 release)

Fraud Liability Protection

$0 liability 24/7

—

Purchase Protection Coverage Duration(days)

120 days

90 days

Annual Travel Credit Benefit(USD)

$200 annually

$600 annually

Business Expense Management Integration

Mastercard Send API + Platform

Amex Intelligence Dashboard

Global Merchant Acceptance(millions)

90+ million merchants

~12 million merchants

Typical Merchant Discount Rate - Standard(percent)

1.5-3.5%

2.5-3.5% OptBlue

Merchant Discount Rate - Premium Tier(percent)

2.5-3.5%

3.5%+ Amex Direct

Average Cardholder Annual Spending(USD)

$4,500-6,000

$12,000-16,000

Credit Score Requirement (Entry Level)(score)

580-620 (fair credit available)

670+ (good credit minimum)

Cardholder Acceptance Rate at Merchants(percent)

98% of US merchants, 85%+ internationally

95% of US merchants, 60%+ internationally

Countries Accepted(countries)

190+

—

Merchant Acceptance Rate(percent)

~94%

—

Business Model

Issuer + Network

—

Full Comparison

Attribute	Mastercard	American Express

Global Merchant Acceptance(millions)	40+ million locations	9 million locations

Typical Annual Fee (Premium Card)(USD)	$95-$195	$550
Typical Annual Fee Range(USD)	$95-$695	—

Average Merchant Fee(%)	1.9%	3.0%

Minimum Credit Score for Best Cards(score)	600+	750+

Travel Insurance Coverage	Varies by Issuer	Comprehensive (Premium Cards)
Rewards Consistency	Standardized across cards	—

Annual Revenue (2026)(billions USD)	$37B (Growth)	$175B
2025 Net Revenue(billion USD)	$30.2B	—

Reward Cashback Rate Range(%)	0.5%-5% (varies)	1.5%-6%
Travel Rewards Tier Classification(Premium Level)	Standard Issuer-Dependent	Premium Exclusive Benefits
Maximum Rewards Rate(X points per $1)	3X points	5X points

Dispute Resolution Speed(days)	30-90 days	30-60 days
Customer Service Type	Direct dedicated support	—

Global Merchant Acceptance Rate(%)	98%+	—

Merchant Discount Rate (Standard)(%)	1.43-2.4%	—
Cost Differential vs Visa(%)	Comparable pricing	—
Merchant Discount Rate Premium vs Visa(Percentage Points)	Industry Standard Baseline	0.30-0.50% Higher
Fee Structure Complexity (2025-2026)(Implementation Changes)	Sweeping Fee Changes Implemented	Established Fee Model

Small Merchant Program Availability	Standard rates only	—

International Expansion (2026 Status)	B2B program expansion ongoing	—
12-Month Merchant Acceptance Growth Rate(Percent)	Stable Mature Network	16% Year-over-Year Growth

Fee Restructuring Cycle	Sweeping changes throughout 2025-2026	—

Premium Cardholder Value	Mass-market cardholder base	—

Global Merchant Acceptance Coverage(Countries)	190+ Countries Worldwide	Strong U.S. + Growing International

Minimum Credit Score Requirement(Score Range)	All Credit Levels (550+)	Good to Excellent (650+)
Minimum Credit Score Required(FICO score)	Fair to Excellent (580+)	Good to Excellent (670+)

Small Business Merchant Program Threshold(USD Annual Volume)	Universal Program (Scalable)	OptBlue Program (<$1M)

Merchant Network Growth Since 2017(Times Expansion)	Steady Mature Expansion	5x Expansion (2017-2025)

Countries with Merchant Acceptance(countries)	190+ countries	150+ countries
Countries with Active Network(countries)	150+ countries	120+ countries

Fraud Liability Protection(USD)	$0 liability	$0 liability
Real-Time Fraud Monitoring	EMV 3DS 2.0 + Advanced Encryption	24/7 Real-Time Alerts
Encryption Standard (2026)(null)	AES-256 (industry standard)	AES GCM (March 2026 release)
Fraud Liability Protection	$0 liability 24/7	—

Purchase Protection Coverage Duration(days)	120 days	90 days

Annual Travel Credit Benefit(USD)	$200 annually	$600 annually

Business Expense Management Integration	Mastercard Send API + Platform	Amex Intelligence Dashboard

Global Merchant Acceptance(millions)	90+ million merchants	~12 million merchants

Typical Merchant Discount Rate - Standard(percent)	1.5-3.5%	2.5-3.5% OptBlue
Merchant Discount Rate - Premium Tier(percent)	2.5-3.5%	3.5%+ Amex Direct

Average Cardholder Annual Spending(USD)	$4,500-6,000	$12,000-16,000

Credit Score Requirement (Entry Level)(score)	580-620 (fair credit available)	670+ (good credit minimum)

Cardholder Acceptance Rate at Merchants(percent)	98% of US merchants, 85%+ internationally	95% of US merchants, 60%+ internationally

Countries Accepted(countries)	190+	—
Merchant Acceptance Rate(percent)	~94%	—

Business Model	Issuer + Network	—

Mastercard

American Express

Global Merchant Acceptance(millions)

40+ million locations

9 million locations

Typical Annual Fee (Premium Card)(USD)

$95-$195

$550

Typical Annual Fee Range(USD)

$95-$695

—

Average Merchant Fee(%)

1.9%

3.0%

Minimum Credit Score for Best Cards(score)

600+

750+

Travel Insurance Coverage

Varies by Issuer

Comprehensive (Premium Cards)

Rewards Consistency

Standardized across cards

—

Annual Revenue (2026)(billions USD)

$37B (Growth)

$175B

2025 Net Revenue(billion USD)

$30.2B

—

Reward Cashback Rate Range(%)

0.5%-5% (varies)

1.5%-6%

Travel Rewards Tier Classification(Premium Level)

Standard Issuer-Dependent

Premium Exclusive Benefits

Maximum Rewards Rate(X points per $1)

3X points

5X points

Dispute Resolution Speed(days)

30-90 days

30-60 days

Customer Service Type

Direct dedicated support

—

Global Merchant Acceptance Rate(%)

98%+

—

Merchant Discount Rate (Standard)(%)

1.43-2.4%

—

Cost Differential vs Visa(%)

Comparable pricing

—

Merchant Discount Rate Premium vs Visa(Percentage Points)

Industry Standard Baseline

0.30-0.50% Higher

Fee Structure Complexity (2025-2026)(Implementation Changes)

Sweeping Fee Changes Implemented

Established Fee Model

Small Merchant Program Availability

Standard rates only

—

International Expansion (2026 Status)

B2B program expansion ongoing

—

12-Month Merchant Acceptance Growth Rate(Percent)

Stable Mature Network

16% Year-over-Year Growth

Fee Restructuring Cycle

Sweeping changes throughout 2025-2026

—

Premium Cardholder Value

Mass-market cardholder base

—

Global Merchant Acceptance Coverage(Countries)

190+ Countries Worldwide

Strong U.S. + Growing International

Minimum Credit Score Requirement(Score Range)

All Credit Levels (550+)

Good to Excellent (650+)

Minimum Credit Score Required(FICO score)

Fair to Excellent (580+)

Good to Excellent (670+)

Small Business Merchant Program Threshold(USD Annual Volume)

Universal Program (Scalable)

OptBlue Program (<$1M)

Merchant Network Growth Since 2017(Times Expansion)

Steady Mature Expansion

5x Expansion (2017-2025)

Countries with Merchant Acceptance(countries)

190+ countries

150+ countries

Countries with Active Network(countries)

150+ countries

120+ countries

Fraud Liability Protection(USD)

$0 liability

Real-Time Fraud Monitoring

EMV 3DS 2.0 + Advanced Encryption

24/7 Real-Time Alerts

Encryption Standard (2026)(null)

AES-256 (industry standard)

AES GCM (March 2026 release)

Fraud Liability Protection

$0 liability 24/7

—

Purchase Protection Coverage Duration(days)

120 days

90 days

Annual Travel Credit Benefit(USD)

$200 annually

$600 annually

Business Expense Management Integration

Mastercard Send API + Platform

Amex Intelligence Dashboard

Global Merchant Acceptance(millions)

90+ million merchants

~12 million merchants

Typical Merchant Discount Rate - Standard(percent)

1.5-3.5%

2.5-3.5% OptBlue

Merchant Discount Rate - Premium Tier(percent)

2.5-3.5%

3.5%+ Amex Direct

Average Cardholder Annual Spending(USD)

$4,500-6,000

$12,000-16,000

Credit Score Requirement (Entry Level)(score)

580-620 (fair credit available)

670+ (good credit minimum)

Cardholder Acceptance Rate at Merchants(percent)

98% of US merchants, 85%+ internationally

95% of US merchants, 60%+ internationally

Countries Accepted(countries)

190+

—

Merchant Acceptance Rate(percent)

~94%

—

Business Model

Issuer + Network

—

Mastercard vs American Express Merchant Acceptance 2026

Mastercard

American Express

Short Answer

Our Verdict

Key Differences at a Glance

Key Facts & Figures

Key Differences

Related Comparisons

Explore Entities

More Finance

People Also Compare

Full Comparison

Visual Comparison

Pros & Cons

Mastercard

Pros

Cons

American Express

Pros

Frequently Asked Questions

Resources & Learn More

Wikipedia

Videos

Full Comparison

Visual Comparison

Cons