Alternative Payment Method (APM)

What Is an Alternative Payment Method?

An alternative payment method (APM) is any payment instrument a consumer uses to complete a transaction outside of traditional credit and debit card networks (Visa, Mastercard, American Express) and physical cash. The category is broad by design: it encompasses bank redirects, real-time payment schemes, mobile wallets, buy now pay later (BNPL) services, prepaid instruments, and cryptocurrency or stablecoin payments.

The term originated in the card-centric payments industry, where Visa and Mastercard were considered the "default" and everything else was the "alternative." That framing is increasingly outdated. In many markets, APMs are the primary way people pay. APMs now account for roughly 61% of global e-commerce transactions, and digital wallets alone make up over half of online payment volume worldwide.

For merchants and payment processors, APMs matter because they unlock access to markets where card penetration is low and consumer preference strongly favors local methods. Failing to support the dominant APM in a given country can mean losing a majority of potential customers at checkout.

How It Works

APMs vary widely in their technical implementation, but most follow one of a few integration patterns. The most common is the redirect flow, used by bank transfer methods like iDEAL, Bancontact, and SOFORT.

Redirect Flow

In a redirect-based APM, the merchant initiates a payment request through their payment gateway or processor. The consumer is then redirected to their bank or wallet provider to authenticate and authorize the payment. After completing authorization, the consumer returns to the merchant's site. The redirect return should not be treated as payment confirmation: the authoritative status comes via a webhook from the processor.

1. Consumer selects the APM at checkout (e.g., iDEAL, Bancontact)
2. Merchant creates a payment session via the processor API, specifying return, error, and cancel URLs
3. Consumer is redirected to their bank's authentication page
4. Consumer approves the payment using their banking credentials or biometrics
5. Bank sends a confirmation to the processor, and the consumer is redirected back to the merchant
6. Processor sends a webhook to the merchant confirming the final payment status

Push Payment Flow

Real-time payment networks like UPI, Pix, and FedNow use a push model. The consumer initiates the payment from their banking app, often by scanning a QR code or entering a payment identifier. The funds move directly from the consumer's bank account to the merchant's account, with settlement occurring in seconds.

Wallet Flow

Digital wallets like Alipay, GrabPay, Apple Pay, and Google Pay use tokenized credentials stored on the consumer's device or account. The consumer authenticates with biometrics or a PIN, and the wallet provider handles authorization and settlement with the merchant's acquirer. Some wallets wrap an underlying card transaction; others operate as independent payment rails.

API Integration Example

A simplified payment initiation for a redirect-based APM looks like this:

// Create a payment session for iDEAL
const payment = await client.payments.create({
  amount: 4999,
  currency: "EUR",
  method: "ideal",
  redirect: {
    return_url: "https://merchant.com/checkout/complete",
    cancel_url: "https://merchant.com/checkout/cancel"
  },
  metadata: { order_id: "order_12345" }
});

// Redirect consumer to the bank authorization page
redirect(payment.redirect_url);

// Handle async webhook for payment confirmation
app.post("/webhooks/payment", (req, res) => {
  const event = req.body;
  if (event.type === "payment.completed") {
    fulfillOrder(event.metadata.order_id);
  }
});

Major APM Categories

Bank Redirects and Open Banking

Bank redirect methods send consumers to their bank's online environment to authorize a payment. These are especially popular in Europe: open banking regulations like PSD2 have accelerated their growth by mandating that banks expose payment APIs to third-party providers.

Notable examples include iDEAL in the Netherlands (accounting for roughly 70% of online payments), Bancontact in Belgium, SOFORT in Germany and Austria, and Przelewy24 in Poland. These methods offer lower fees than card payments because they bypass interchange and card network fees entirely.

Real-Time Payment Networks

Government-backed instant payment systems have become dominant APMs in several of the world's largest economies:

• UPI (India): serves roughly 400 million users and processes over 20 billion transactions per month. UPI accounts for more than 55% of India's e-commerce volume and is operated by the National Payments Corporation of India (NPCI).
• Pix (Brazil): launched in 2020 by Banco Central do Brasil, Pix has reached over 170 million individual users, covering roughly 82% of Brazil's population. It settles payments in under ten seconds, 24/7, and accounts for approximately 55% of all payment transactions in the country.
• FedNow (United States): the Federal Reserve's instant payment service, launched in 2023, with roughly 1,700 participating institutions as of 2026. Adoption is still early compared to established systems like UPI and Pix.
• SPEI (Mexico): Mexico's interbank electronic payment system enables real-time transfers and is the backbone of consumer digital payments in the country.

These networks represent a shift from card-mediated payments to account-to-account (A2A) transfers, driven by lower costs and faster settlement.

Digital Wallets

Digital wallets store payment credentials (cards, bank accounts, or stored balances) and let consumers pay with a tap, scan, or click. They are the single largest APM category globally, with over 5 billion projected users worldwide.

In China, Alipay and WeChat Pay together are used by roughly 90% of online payment users. WeChat Pay alone has over 1 billion active users. In Southeast Asia, GrabPay, GCash, and ShopeePay dominate mobile commerce. Apple Pay and Google Pay have strong adoption in the US, UK, and Australia, though they typically wrap an underlying card transaction rather than operating as independent rails.

Buy Now, Pay Later

Buy now, pay later (BNPL) services like Klarna, Afterpay, and Affirm let consumers split purchases into installments, often interest-free. The global BNPL market reached an estimated $560 billion in gross merchandise value in 2025 and is projected to exceed $640 billion in 2026.

BNPL acts as both a payment method and a credit product. For merchants, it increases average order value and conversion rates. For consumers, it offers short-term financing without a traditional credit card. Regulatory scrutiny is increasing in several jurisdictions as lawmakers evaluate whether BNPL products should be subject to the same consumer credit protections as traditional lending.

Crypto and Stablecoin Payments

Cryptocurrency and stablecoin payments represent the newest APM category. Unlike other APMs that are typically region-specific, stablecoins work across borders without geographic restrictions. A merchant accepting USDC or USDT can receive payments from any country where the consumer has internet access.

Major processors are building stablecoin support into their platforms. Stripe enabled stablecoin checkout for merchants on its platform, and PayPal expanded PYUSD to dozens of countries. The passage of the GENIUS Act in the United States in July 2025 provided a federal regulatory framework for stablecoin issuers, further legitimizing this category.

Stablecoin payments offer near-instant settlement, low fees, and programmable logic through smart contracts. However, adoption at the point of sale remains early compared to established APMs like UPI or Pix. Most stablecoin payment volume today comes from B2B invoice settlement and cross-border remittances rather than retail checkout. For a detailed look at merchant adoption, see the stablecoin merchant adoption guide.

Why APM Adoption Varies by Region

APM dominance is shaped by local infrastructure, regulation, and consumer behavior. Several factors drive regional variation:

• Card penetration: in markets where credit card ownership is low (much of Southeast Asia, Latin America, and Africa), consumers naturally gravitate to bank transfers, mobile money, and wallet-based payments.
• Government-led systems: UPI, Pix, and FedNow were created by central banks or regulators to modernize national payment infrastructure. Their zero or near-zero fees make them hard to compete against.
• Regulation: Europe's open banking mandates (PSD2) require banks to provide third-party access to payment initiation APIs, directly enabling bank-based APMs.
• Consumer habit: in the Netherlands, iDEAL became dominant because Dutch consumers historically preferred direct bank payments over credit. In Japan, credit cards still lead online payments at roughly 55%, reflecting different consumer preferences.
• Mobile-first economies: in markets where smartphones arrived before traditional banking infrastructure, mobile wallets and mobile money services (M-Pesa in East Africa, GCash in the Philippines) became the default payment layer.

For merchants expanding internationally, understanding these dynamics is critical. A checkout page that only offers Visa and Mastercard may convert well in the US or UK but could lose the majority of potential sales in Brazil, India, or the Netherlands. For a deeper look at how A2A payments are reshaping these markets, see the research on A2A payment rails.

Payment Orchestration

The proliferation of APMs creates a fragmentation problem for merchants. Supporting iDEAL in the Netherlands, UPI in India, Pix in Brazil, and Alipay in China means integrating with multiple processors, each with their own API, settlement timeline, and compliance requirements.

Payment orchestration platforms solve this by aggregating APMs behind a single API. Processors like Adyen support over 200 local payment methods through one integration. Orchestration layers that sit above processors can route transactions across multiple providers, choosing the optimal path based on geography, cost, and authorization rates.

A typical orchestration flow works as follows:

1. Merchant integrates a single orchestration API
2. At checkout, the platform detects the consumer's region and displays relevant APMs
3. The orchestrator routes the transaction to the appropriate processor or acquirer
4. Settlement occurs according to the APM's native timeline (instant for Pix, T+1 for some bank transfers)
5. The merchant receives a unified webhook and reconciliation report regardless of the underlying method

For a detailed look at how orchestration platforms work, see the payment orchestration research.

Use Cases

Cross-Border E-Commerce

A merchant selling globally needs to accept the dominant payment method in each target market. APM support is the difference between a checkout flow that converts and one that forces consumers to abandon their cart because their preferred payment method isn't available.

Recurring Billing and Subscriptions

Some APMs support mandates or recurring authorization tokens that allow merchants to charge consumers on a schedule. SEPA Direct Debit in Europe and ACH in the United States are common for subscription-based businesses. Newer methods like variable recurring payments under open banking frameworks offer more flexibility.

Marketplace and Platform Payments

Marketplaces operating across multiple countries need to accept payments from buyers in local currencies and methods, then disburse to sellers. APM support through an orchestration layer simplifies this by normalizing the payment acceptance across regions.

B2B and Invoice Payments

Business-to-business transactions increasingly use APMs to avoid card fees on large invoices. Bank transfers, real-time payment networks, and stablecoins all reduce the cost of moving money between businesses compared to card rails, where interchange fees are percentage-based and grow with transaction size.

Risks and Considerations

Fragmentation and Maintenance

Each APM has its own integration requirements, settlement cycles, refund mechanisms, and compliance rules. Even with orchestration platforms, merchants must handle differing chargeback and dispute processes (or the absence of them) across methods. Some APMs, like iDEAL, do not support chargebacks at all, shifting dispute resolution entirely to the merchant.

Settlement Timing

Settlement timelines vary widely across APMs. Some real-time networks like Pix and UPI settle in seconds. Bank redirect methods may take one to two business days. BNPL providers often settle with merchants on a delayed schedule, creating cash flow gaps. Merchants must account for these differences in their treasury and reconciliation processes.

Regulatory Complexity

APMs are subject to local regulations that differ by country. Open banking rules in Europe differ from UPI's regulatory framework in India. BNPL products face evolving consumer credit regulations. Stablecoin payments must comply with KYC/AML requirements and, in the US, the GENIUS Act framework. Merchants operating across regions need to track regulatory changes for each APM they support.

Fraud and Dispute Handling

Card networks provide standardized chargeback and dispute resolution mechanisms. Many APMs lack equivalent protections. Bank transfers and stablecoin payments are typically irreversible, meaning merchants and consumers have limited recourse for unauthorized or disputed transactions. This shifts fraud prevention responsibility to the front of the funnel: screening and verification before the payment is initiated.

Currency and FX Risk

APMs that settle in local currencies expose merchants to foreign exchange risk. A merchant accepting Pix in Brazilian reais or UPI in Indian rupees must manage currency conversion and potential volatility. Stablecoins pegged to the US dollar avoid this problem for dollar-denominated merchants but introduce their own considerations around depeg risk and redemption.

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.