fitgap

Affirm

Installment payment and buy now pay later (BNPL) software
Payment software
Features
Ease of use
Ease of management
Quality of support
Affordability
Market presence
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Pricing from
Pay-as-you-go
Free Trial unavailable
Free version unavailable
User corporate size
Small
Medium
Large
User industry
  1. Education and training
  2. Retail and wholesale
  3. Accommodation and food services

What is Affirm

Affirm is a buy now, pay later (BNPL) platform that lets merchants offer consumers installment payment options at checkout for online and in-store purchases. It targets ecommerce and omnichannel retailers that want to add consumer financing without building underwriting, servicing, and repayment workflows in-house. The product combines real-time credit decisioning, payment processing/settlement to merchants, and consumer account servicing through Affirm’s app and web experience. Merchants typically integrate via ecommerce platform plugins, APIs, or payment/checkout partners, depending on region and channel.

pros

End-to-end BNPL lifecycle

Affirm covers credit decisioning, installment plan creation, consumer disclosures, repayment collection, and servicing in one platform. This reduces the need for merchants to assemble separate tools for underwriting and loan servicing. It also centralizes reporting around approvals, repayment performance, and settlement. For many merchants, this simplifies operational ownership compared with stitching together multiple payment components.

Multiple integration options

Affirm supports integrations through APIs and common ecommerce/checkout integrations, which can reduce implementation effort for standard use cases. It can be deployed for online checkout and, where supported, in-store/omnichannel flows. This flexibility helps merchants align BNPL with existing payment stacks rather than replacing them. Integration choices can be important when comparing BNPL providers that vary in platform and partner coverage.

Merchant settlement and risk handling

Affirm typically pays the merchant and manages consumer repayment collection, shifting key repayment and fraud/credit exposure away from the merchant in many configurations. This can improve cash-flow predictability versus merchant-managed installment billing. It also reduces internal collections and delinquency management work. The exact allocation of fees and risk depends on the merchant agreement and transaction type.

cons

Not a full payments stack

Affirm is primarily a BNPL/consumer financing product rather than a general-purpose payment processor for all tender types. Merchants often still need separate providers for cards, bank debit, wallets, and broader payment orchestration. This can increase vendor count and reconciliation complexity compared with unified payment platforms. Fit and total cost depend on how BNPL is layered into the existing checkout.

Geography and eligibility constraints

Availability, supported currencies, and product terms vary by country and merchant category. Consumer approval is subject to underwriting, which can lead to declined transactions and variable conversion outcomes. Some verticals or ticket sizes may face additional restrictions or compliance requirements. Merchants operating in multiple regions may need alternative BNPL options for unsupported markets.

Fees and margin impact

BNPL programs typically involve merchant discount rates and/or program fees that can be higher than some standard payment methods. This can pressure margins, especially for low-margin categories or high return-rate products. Merchants may also need to manage customer support scenarios related to refunds, disputes, and installment plan adjustments. The net economics depend on uplift versus incremental cost.

Plan & Pricing

Pricing model: Pay-as-you-go (merchant transactional pricing)

Summary (from Affirm official site): Merchant pricing is not published as fixed tiers. Affirm charges a merchant discount rate (MDR) plus a per-transaction fee; the exact percentage and per-transaction fixed amount are negotiated and depend on the financing program you choose, your business size, and your business’s risk profile. Affirm states a “typical” fee is a base percentage + $X.XX (or £X.XX) per transaction but does not publish standard rates on its site. Affirm does not charge integration fees, monthly fees, or annual fees. Refunds do not return the merchant discount rate or transaction fee to merchants. Settlement to merchant bank accounts occurs via ACH/direct debit within 1–3 business days (varies by region).

Free tier/trial: No permanent "free plan" for merchants; pricing is transaction-based (no monthly/annual fees). No time-limited merchant trial is published.

Example costs (as described on Affirm official docs):

  • Typical structure described on Affirm official site: Merchant Discount Rate (MDR) = base % + fixed transaction fee (e.g., “base percentage + $X.XX per transaction”). Exact numeric values are not published and are provided after merchant signup/underwriting.

Discount/options: Fees vary by program choice (e.g., Pay in 4, Installments, Adaptive Checkout) and by merchant size/risk — Affirm indicates negotiated pricing per merchant and program.

Seller details

Affirm Holdings, Inc.
San Francisco, California, USA
2012
Public
https://www.affirm.com
https://x.com/Affirm
https://www.linkedin.com/company/affirm/

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