American Express vs. Mastercard: Which Financial Stock Is a Better Buy for 2027?

As digital payments continue to evolve, choosing between American Express (NYSE:AXP) and Mastercard (NYSE:MA) requires understanding how their distinct business models capitalize on global consumer spending trends.

American Express functions as a lender and a network, focusing on high-spending cardholders and premium partnerships. Mastercard operates as a pure-play payment technology provider, facilitating transactions without taking on credit risk.

The case for American Express

American Express operates a unique closed-loop network, acting as both the card issuer and the payment processor for its premium customer base. It serves millions of merchants globally and maintains strategic partnerships with brands like Delta Air Lines (NYSE:DAL), Marriott International (NASDAQ:MAR), and Hilton Worldwide Holdings (NASDAQ:HLT). These direct relationships with consumers and businesses provide deep insights into spending patterns.

Reliable recent quarterly figures for at least one of these companies aren't available, so this comparison uses each company's latest full fiscal year. In the fiscal year ended Dec. 31, 2025, revenue reached nearly $72.2 billion, representing growth of approximately 9.5% over the previous year. The company reported net income of close to $10.8 billion during this period.

As of its December 2025 balance sheet, the debt-to-equity ratio was roughly 1.7x, indicating that total debt is nearly 1.7 times shareholder equity. The current ratio, which compares current assets to current liabilities, is approximately 0.3x. American Express also generated free cash flow of nearly $16.0 billion in its latest fiscal year.

The case for Mastercard

Mastercard serves a global ecosystem of financial institutions, governments, and businesses, connecting more than 3.7 billion accounts. The company operates in the broader fintech landscape, providing critical infrastructure for digital payments. It recently expanded its commercial reach through partnerships with financial institutions to launch specialized credit products for small businesses.

In the fiscal year ended Dec. 31, 2025, Mastercard generated revenue of nearly $32.8 billion, representing approximately 16.4% growth over the prior year. The company reported a net income of close to $15.0 billion. This performance resulted in a high net margin of roughly 45.6% for the year.

As of its December 2025 balance sheet, the debt-to-equity ratio was approximately 2.5x, meaning total debt was 2.5 times shareholder equity. The current ratio is roughly 1.0x, indicating that current assets are roughly equal to current liabilities. Mastercard generated nearly $16.4 billion in free cash flow during its latest fiscal year.

Risk profile comparison

American Express faces intense worldwide competition from other networks and alternative payment providers like Apple and PayPal. It relies heavily on co-brand partnerships, where a bankruptcy or non-renewal by a major partner could impact revenue. Additionally, the company is sensitive to geopolitical instability and shifting trade policies that affect international travel spending.

Mastercard faces substantial global competition from other payment networks like Visa and local government-backed payment systems. The company also faces ongoing legal and regulatory risks regarding interchange fees and antitrust oversight. As a central player in the payment value chain, it remains a primary target for cybersecurity threats and information security incidents.

Valuation comparison

American Express trades at a lower Forward P/E than Mastercard, indicating it is currently priced at a smaller multiple of its future earnings estimates.

Valuation metrics include sourcing from Financial Modeling Prep (FMP) and may ›differ from other data providers.

Which stock would I buy for 2027?

The multiple gap is real, but it isn't the main factor for me. What I care about more is which business keeps compounding over a decade, and Mastercard has the structural edge. It sells access to a network, so each added transaction costs almost nothing and growth flows straight to profit. It never lends, so it never has to fund a loan book or hold capital against one. American Express has to do both, which means part of every growth dollar goes to supporting the balance sheet.
Amex has real strengths. It runs a closed loop with an affluent customer base, so it owns the relationship in a way Mastercard doesn't, and that has driven years of steady fee and spending growth. But wealthy customers still fall behind on payments when the economy turns, so Amex's earnings will rise and fall with the economy. Mastercard's risk is different: regulators and merchants keep attacking the fees behind its profit margins.
So this is mostly a quality question, and portfolio fit comes second. For a long-term holder, I'd lean toward Mastercard as the better business. The cost is a high multiple, which means returns depend on continued strong growth. Amex is the better choice only if price matters more to you than durability. If your portfolio already leans on banks and lenders, Mastercard also adds spending exposure without more credit risk.

American Express is an advertising partner of Motley Fool Money. Seena Hassouna has positions in Mastercard. The Motley Fool has positions in and recommends American Express, Mastercard, and Visa. The Motley Fool recommends Delta Air Lines and Marriott International. The Motley Fool has a disclosure policy.