Accept Square
payments on WHMCS
Install the free PaymentHood module for WHMCS, connect your Square account, and Square appears as a payment option at checkout. No custom gateway code, and no second integration when you add another provider later.
- USD
- CAD
- AUD
- JPY
- GBP
- EUR
- Platform
- WHMCS 7.0+
- Provider
- Square
- Install via
- Apps & Integrations
- Billing
- One-time & recurring
- PaymentHood fee
- None
Square on WHMCS at a glance
- WHMCS version
- WHMCS 7.0+
- Where you install it
- WHMCS admin → Apps & Integrations
- Coverage
- Merchant accounts are available in the United States, Canada, Australia, Japan, the United Kingdom, Ireland, France and Spain.
- Currencies
-
- USD
- CAD
- AUD
- JPY
- GBP
- EUR
- Billing models
- One-time checkout and recurring renewals — WHMCS generates both, and the module handles both.
- Cost
- The module is free and open source. You pay Square's own fees, published on their pricing page (opens in new tab). PaymentHood adds nothing on top.
Coverage, currencies and payment methods as published by Square, who set and update them. For the current list see Square's own documentation (opens in new tab).
What WHMCS customers can pay with
Each method Square supports appears in your WHMCS checkout. Enabling one is a PaymentHood dashboard setting — nothing changes on the WHMCS side.
Cards
Visa, Mastercard, American Express, Discover and JCB
Digital wallets
Apple Pay, Google Pay and Cash App Pay
Buy now, pay later
Afterpay where Square offers it
Connect Square to WHMCS
Four steps, no code. The full walkthrough with screenshots is in the WHMCS installation guide.
Open a Square account
Register with Square and finish their onboarding. Funds settle from Square to your own bank account.
Add it in PaymentHood
Paste your Square credentials into the PaymentHood dashboard. They stay server-side and never reach your storefront.
Install the module
Download the WHMCS module and install it from Apps & Integrations in your WHMCS admin.
Enable and test
Paste your PaymentHood API key into the module settings, run a sandbox order end to end, then switch to live.
Rather than a direct Square module
A single-provider module works until you need a second provider. These are the parts you would otherwise build and maintain yourself.
- Webhook security
- HMAC-signed event notification, verified before an order is released
- Payment verification
- Server-side payment status re-check against the Square API before fulfilment
- Credentials
- OAuth access token scoped to the merchant, held server-side in PaymentHood
- Add a second provider without touching your WHMCS checkout
- Automatic failover when Square is unreachable, instead of a failed order
- Idempotent charge creation, so a double-submitted order is not a double charge
- One reconciliation view across every provider you run
- Free and open source — read the module on GitHub (opens in new tab)