Overview

Affirm was founded in 2012 and is headquartered in San Francisco, California. Founded by PayPal co-founder Max Levchin, Affirm is the leading Buy Now Pay Later (BNPL) platform in the United States. Affirm's core mission is to deliver "honest, flexible, and affordable" installment payment alternatives to traditional credit cards.

Affirm has partnered with 300K+ merchants including Amazon (exclusive BNPL partner), Walmart, Shopify, Peloton, and Adidas. The mobile app has been downloaded 45M+ times with 17M+ active consumers. In fiscal 2025, Affirm's Gross Merchandise Volume (GMV) exceeded $30 billion. The company is publicly traded on Nasdaq (AFRM) with a market cap exceeding $15 billion.

Key Strengths

  • Exclusive Amazon BNPL partnership: Affirm is Amazon's exclusive BNPL provider in the US, allowing Amazon shoppers to choose Affirm at checkout. This exclusive partnership provides a massive traffic funnel and brand trust, directly reaching Amazon's 300M+ active customers.

  • Flexible 0%-36% APR plans: Offers installment plans from 0% APR (short-term interest-free) to 36% APR (long-term), with terms ranging from 3 to 48 months. The 4-payment interest-free Pay in 4 option at 0% APR effectively lowers purchase barriers for creditworthy consumers.

  • Transparent pricing, no hidden fees: Affirm clearly displays total cost, monthly payment, and APR on every transaction with no late fees, service fees, or prepayment penalties. This transparency commitment is distinctive in the BNPL industry and builds strong consumer trust.

  • Powerful mobile experience: The Affirm mobile app provides full installment management — checking available credit, applying for financing, and managing repayment plans. The virtual Affirm Card lets consumers use BNPL at any US merchant that accepts Visa.

Product Ecosystem

Affirm Installments (Core Product)

Consumers select Affirm at checkout on partner merchant sites, provide basic information, and receive a real-time decision:

  • Pay in 4: 4 interest-free bi-weekly payments
  • Monthly Installments: 3-48 months, 0%-36% APR

Affirm Card (Virtual Card)

A Visa-linked virtual debit card that lets consumers use their Affirm spending power at any merchant accepting Visa. Supports online purchases as well as Apple Pay / Google Pay for in-store use, extending BNPL capability from partner merchants to 1M+ US merchants.

Merchant Dashboard

Provides real-time transaction reporting, installment conversion analytics, and customizable plan configuration. Merchants can track how Affirm BNPL impacts their average order value and conversion rates.

Limitations

  • Extremely limited international coverage: Affirm primarily serves US consumers, with limited support for Canadian merchants. For markets in China, Europe, or Asia Pacific, Affirm is unavailable. Consider Klarna (Europe) or Afterpay (Australia/UK).

  • APR up to 36% on some plans: For consumers with lower credit scores, long-term installment APR can reach 36%, comparable to or exceeding traditional credit card rates. Consumers should carefully review terms.

  • Soft credit check on every transaction: Each Affirm purchase triggers a soft credit inquiry. While it doesn't impact credit scores, some consumers may be declined due to insufficient credit history.

  • Higher merchant fees: Merchant fees run approximately 2%-4% + $0.30 per transaction, higher than traditional debit (~1.5%) and some credit card (~2.5%) rates. High-AOV merchants should evaluate whether BNPL conversion lift justifies the extra cost.

Use Cases

  • US e-commerce BNPL (★★★★★): The standard BNPL option, most directly available for Amazon and Shopify merchants.
  • High-AOV goods (★★★★★): Electronics, furniture, fitness equipment ($200+), installment plans significantly boost conversion.
  • Subscription services （★★★★☆）: Annual SaaS subscriptions and memberships — flexible installments reduce decision friction.
  • Non-US markets （★☆☆☆☆）: US/Canada only; choose local BNPL providers for other regions.

Pricing

Plan Type Duration APR Range Best For
Pay in 4 4 payments (6 weeks) 0% APR Low-AOV, fast turnover
Monthly Installments 3-12 months 0%-36% APR Mid-AOV, flexible repayment
Long-term Installments 13-48 months 10%-36% APR High-AOV, cash flow relief

Merchant fee: ~2%-4% + $0.30 per transaction, negotiable based on volume.

FAQ

  • How is Affirm different from Afterpay/Klarna? Affirm's key differentiators are the exclusive Amazon partnership, transparent pricing (no hidden fees), and longer-term installment options (up to 48 months). Afterpay focuses on 4-payment interest-free plans, fashion/apparel, and AU/UK markets, while Klarna leads in Europe with broader international coverage.

  • Does Affirm run a credit check? Yes, each Affirm transaction uses a soft credit inquiry that does not affect your credit score. Approval depends on credit history, purchase amount, and repayment capacity; see BNPL comparison.

  • Can Chinese consumers use Affirm? No. Affirm requires a US phone number and US credit history for verification. Chinese consumers cannot use Affirm directly; see cross-border payment comparison.

  • What are Affirm's merchant fees? Approximately 2%-4% + $0.30 per transaction, varying by industry and volume. The conversion lift from BNPL usually offsets the higher fee cost for most merchants; see payment gateway rate comparison.