How to Integrate Square with Squarespace as Payment Option Easily 2026

Head to the Squarespace login screen and sign in with your email and password, or use one of the Continue with Google, Apple, or Facebook options if that's how your account was originally set up. Once you're in, Squarespace takes you to your dashboard, where you'll pick the specific site you want to connect Square to if you manage more than one.

From your site's home panel — which shows a Get started checklist, your site preview, and links like Manage Domain and Publish Your Site — look at the left-hand navigation. Website, Products & Services, Scheduling, and Invoicing all sit here, but the setting you need is reached through the gear icon at the bottom of the sidebar, labeled Settings.

Inside Settings, the left column lists categories including Website, Domains & Email, Customer Notifications, Selling, Brand, Marketing, Third Party Tools, and Billing. Click Selling, and you'll see a grid of cards: Business Information, Payments ("Add ways to receive payments"), Customer Accounts, Low Stock Alerts, Cart, and Checkout. Payments is the one you want — it's specifically where every payment processor your store can accept gets added and configured.

On the Payments page, Squarespace lists the processors available to connect, and Square appears as one of the options alongside Squarespace's own native payments and others depending on your region. Click Square to start the connection flow rather than trying to configure it as a generic card processor — the dedicated Square option is what triggers the account-linking step.

You'll be prompted to log into Square using the credentials tied to your actual business account — the same one used for your Square POS or dashboard if you already sell in person. Signing in here isn't just verification; it's what authorizes Squarespace to talk to your Square account and pull in payment processing on your behalf, so double-check you're using your business account rather than a personal or test one.

After authorization, Squarespace automatically finishes linking the two accounts — there's no manual API key or token to copy over. Once the sync completes, Square shows up as an active, connected payment method back on the Payments settings page, ready to be offered at checkout alongside anything else you've enabled.

Go to your storefront's checkout page and either place a small test order or simply confirm Square appears as a selectable payment option. This is worth doing before announcing the change anywhere, since payment integrations are exactly the kind of setting where a small misconfiguration only becomes obvious the moment a real customer tries to check out.