WP Simple Pay Documentation
Advanced Usage
Discover advanced ways to use and modify WP Simple Pay's functionality.
-
How to Update Your ACH Direct Debit Settings for NACHA Compliance
Starting in 2026, NACHA (the organization that governs ACH payments in the U.S.) introduced new rules requiring ACH Direct Debit transactions to include a classification that identifies whether a payment is for goods,...
-
How to Launch Overlay from Other Buttons or Links
Learn how to launch a custom overlay or Stripe Checkout payment form from custom buttons or links.
-
How to Add Custom CSS to WP Simple Pay
Learn how to style WP Simple Pay payment forms with custom CSS.
Start Accepting Payments Today
Start accepting one-time and recurring payments or donations on your WordPress website.