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How to Accept Affirm & Klarna Buy Now Pay Later (BNPL) in Gravity Forms

Last updated: August 16, 2026 • Author:
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Offering flexible installment financing significantly increases average order value (AOV) and conversion rates for high-ticket services, coaching packages, and customized products. With the Gravity Forms Affirm Payment Gateway Add-on, you can enable seamless Affirm Buy Now Pay Later (BNPL) checkout directly on any WordPress form.

Why Offer Affirm BNPL on Gravity Forms

  • Higher Conversion for High-Ticket Services: Allows customers to split purchases into manageable monthly installments (3, 6, or 12 months) with 0% APR options.
  • Guaranteed Upfront Payout: Affirm pays you in full upfront while managing client credit underwriting and loan servicing directly.
  • Zero Platform Revenue Share: Avoids expensive SaaS platform transaction fees.

Step-by-Step Setup Guide

Step 1: Enter Affirm API Credentials

Navigate to Forms → Settings → Affirm and enter your Public API Key and Private API Key from your Affirm merchant dashboard.

Step 2: Add an Affirm Feed to Your Form

In your form settings, create an Affirm payment feed, map billing address fields, and select your target currency (USD/CAD).

Boost your average order value today. Get Gravity Forms Affirm Addon (/year) →

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