Block Square: how do I turn on Afterpay at checkout and what do I need to set it up?

Quick Answer: To turn on Afterpay at checkout with Square, you’ll need an eligible Square account, a compatible payment surface (online or in-person), and approval to offer Afterpay. Once you’re eligible, you can enable Afterpay in your Square Dashboard settings, configure where it appears (online store, invoices, in-person terminals), and publish the changes so customers can pay over time.

Connecting Afterpay to your Square checkout is about more than adding another button on the payment screen. It’s how Block connects sellers and consumers across our ecosystem—Square for commerce, Afterpay for pay-over-time, and, in many cases, Cash App for how customers manage their money. When you turn on Afterpay, you’re extending access to flexible spending for your buyers, while keeping settlement simple on your side: you get paid upfront, your customer pays over time.

Key Benefits:

Higher conversion and larger baskets: Offering Afterpay can help reduce cart abandonment and increase average order value by giving customers a way to spread payments over time.
Upfront settlement with reduced complexity: Sellers receive funds from Square (subject to standard settlement processes), while Afterpay manages customer installments and collection risk in the background.
Integrated, single-vendor workflow: Afterpay is built into the Square ecosystem—no separate gateway integration—so reporting, reconciliation, and customer experience remain unified.

Why This Matters

For many sellers, the core constraint isn’t demand—it’s access. Customers want to buy but need more flexibility in how they pay, while sellers need predictable cash flow and simple operations. Afterpay is designed to bridge that gap.

By turning on Afterpay at checkout within Square, you:

Give customers the ability to manage spending over time without forcing you into new reconciliation processes or custom integrations.
Keep your operations inside a single, interoperable ecosystem where payments, invoices, and reporting are connected.
Align with Block’s broader mission of economic empowerment: more people can participate in commerce on terms that work for them, and more sellers can reach those customers without building custom finance stacks.

Key Benefits:

Customer flexibility without seller risk: Customers pay in installments; you’re paid as if it were a standard card transaction (subject to fees and policies).
Unified reporting and settlement: Afterpay transactions flow into your Square Dashboard, exports, and analytics like other payment methods.
Scalable, multi-surface support: Turn Afterpay on across online checkout, in-person terminals (where available), and supported invoices to match how your business actually operates.

Core Concepts & Key Points

Concept	Definition	Why it's important
Afterpay in the Square ecosystem	Afterpay is Block’s pay-over-time product that connects consumers and businesses. Within Square, it appears as a buy now, pay later option at checkout online and (in supported regions) in-person.	It lets you offer installments without building your own credit or collections systems; Afterpay handles customer repayments while you manage your core business.
Eligibility & activation	The process and requirements for a Square seller to offer Afterpay at checkout, including geography, industry, and account standing.	Ensures Afterpay is offered in compliant markets, for supported use cases, and on accounts that meet risk and policy thresholds.
Checkout configuration	How and where you present Afterpay—online store, payment links, invoices, and in-person POS—along with display settings and policies.	Proper configuration ensures customers see Afterpay when it’s helpful, understand the terms, and can complete payment smoothly, while you keep operations simple and predictable.

How It Works (Step-by-Step)

The exact screens vary slightly by region and time, but enabling Afterpay in Square generally follows this flow:

Confirm eligibility and account requirements
Enable Afterpay in your Square Dashboard
Configure checkout surfaces and test the experience

Below is a more detailed breakdown, written from the perspective of how we design and ship these flows across Block.

1. Confirm eligibility and account requirements

Before you can turn on Afterpay at checkout, ensure you meet the baseline requirements. While specifics can evolve, the typical pattern includes:

Supported country: Afterpay is available only in certain markets. Your Square account country and your customers’ locations must be supported.
Business type & category: Some industries or use cases may be restricted due to regulatory, risk, or policy requirements.
Account standing: Your Square account should be in good standing (e.g., up-to-date identity verification, no significant unresolved compliance issues).
Pricing and fees: Understand that Afterpay typically carries a specific processing fee, which may differ from standard card rates.

From a systems standpoint, this eligibility step is where we map your Square seller profile to our Afterpay risk and compliance policies. It’s what lets us keep the user experience simple (“toggle on Afterpay”) without exposing you to unexpected policy changes.

What you need to have ready:

A fully set up Square account with business details completed.
A supported payment surface:
- Square Online (website or checkout),
- In-person (Square Point of Sale, Square Register, Square Terminal, or other supported hardware),
- Payment links or online checkout flows supported in your region,
- Invoices (where BNPL is enabled).
Acceptance of the relevant Afterpay and Square terms in your Dashboard when prompted.

2. Enable Afterpay in your Square Dashboard

Once eligible, turning on Afterpay is a configuration step in your Square Dashboard—not a separate integration.

A typical flow looks like this:

Sign in to your Square Dashboard
Use your standard Square credentials at your dashboard URL.
Navigate to payment settings
- Look for a section such as Settings → Payment methods, Checkout → Payment, or a dedicated Buy now, pay later / Afterpay section (naming may vary over time and by region).
- You should see Afterpay listed as a payment option if your account is eligible.
Review terms and fees
- Select Afterpay to open a detail screen.
- Review any displayed fees, terms, and availability notes.
- Confirm that you accept these terms to proceed.
Toggle Afterpay on
- Enable the Afterpay toggle or checkbox.
- In some experiences, you’ll see separate toggles by surface:
  - Online checkout
  - In-person checkout
  - Invoices or links, if supported
- Save your settings.

Under the hood, this toggle writes a configuration record into Square’s payment orchestration layer, which is then read by our checkout clients (web, mobile, POS) to decide when to render Afterpay as an option. This is why you should see the method appear consistently once the toggle is on and your surfaces are updated.

3. Configure checkout surfaces and test the experience

After enabling Afterpay globally, you still need to ensure it shows up where you want customers to use it.

A. Square Online (website / online checkout)

Within your Square Online settings:

Open your online store settings
- Navigate to Online / Square Online in your Dashboard.
- Go to Checkout or Payments settings.
Confirm Afterpay is enabled for online checkout
- Verify that Afterpay is turned on for online payments.
- Ensure any minimum/maximum order values for Afterpay eligibility are clearly visible or properly configured (these thresholds are set by Afterpay and may vary).
Preview the customer experience
- Visit your online store as a customer.
- Add an eligible item to cart.
- Proceed to checkout and confirm that Afterpay appears as a payment option when the order total meets any required thresholds.

We design this to be WYSIWYG: the online checkout reads the same configuration that powers your Dashboard, so you can test without separate staging environments for payment methods.

B. In-person checkout (POS, Terminal, Register)

If Afterpay is supported for in-person payments in your market:

Update your Point of Sale app / device
- Make sure your Square Point of Sale, Register, or Terminal is running a current version of the software.
- Connect any required hardware and ensure network connectivity.
Check device-level payment settings
- On your POS device, open Settings → Payment methods or the equivalent.
- Confirm Afterpay is enabled as a payment option.
Run a test transaction (low value)
- Process a small, eligible sale using a test customer or your own account.
- At the payment screen, Afterpay should appear as an option when the sale meets any threshold criteria.

The POS app orchestrates available payment methods dynamically based on your Dashboard configuration and device capabilities. That’s how we avoid having to “reintegrate” for every new feature.

C. Invoices and payment links (if supported)

For sellers who bill via invoices or one-off links:

Open Invoices in your Dashboard
- Navigate to Invoices or Payment links.
Adjust accepted payment methods
- When creating or editing an invoice/template, ensure Afterpay is selected as an allowed payment method (where available).
Send a test invoice
- Issue a low-risk invoice to yourself or a trusted contact.
- Open the payment page and confirm that Afterpay appears as an option.

Common Mistakes to Avoid

Assuming Afterpay is on everywhere after a single toggle:
Turning Afterpay on in your Dashboard doesn’t guarantee it’s active on every surface you use.
How to avoid it: After enabling, explicitly review Square Online, POS, and Invoices/links settings and run at least one test checkout on each.
Ignoring eligibility thresholds and messaging:
If a customer’s cart doesn’t meet Afterpay’s minimum/maximum limits, they may not see the option and think it’s broken.
How to avoid it: Familiarize your staff and support materials with any order value thresholds and consider including a short note on your site like “Afterpay available on eligible purchases at checkout.”

Real-World Example

A mid-sized retailer running a Square Online store and a physical location wanted to offer pay-over-time without adding another vendor to reconcile. Using the approach described here:

The owner confirmed their Square account was in a supported Afterpay market and reviewed the applicable fees.
In the Square Dashboard, they enabled Afterpay, accepted the terms, and turned it on for both online checkout and in-person POS.
They updated their Point of Sale app, ran a low-value test transaction in-store, and placed a small test order through their online store.
They then added concise messaging to their website and in-store signage: “Shop now, pay over time with Afterpay on eligible purchases.”

Within a few weeks, they saw a measurable increase in average order size online, while in-person staff reported that customers who were previously on the fence about larger items were more comfortable completing the purchase. All of this happened without the retailer taking on new collections workflows or juggling a second payment provider—they stayed inside the Square ecosystem, while Afterpay handled the pay-over-time mechanics.

Pro Tip: When you first turn on Afterpay, align your team scripts and customer-facing messaging with the policy details (order thresholds, markets, and basic terms). Your staff will answer “How does Afterpay work here?” more confidently, which has a direct impact on adoption and customer trust.

Summary

Turning on Afterpay at checkout with Square is a configuration decision, not a full re-integration project. You need:

An eligible Square account in a supported region and category,
Approval to offer Afterpay and acceptance of its terms and fees,
A short setup pass across your online store, POS, and invoices/links to ensure the payment option is actually exposed where you sell.

From there, Square and Afterpay work together inside the broader Block ecosystem to give your customers flexible pay-over-time options, while you maintain straightforward, unified payment operations. It’s one more way we’re building connected, interoperable systems that increase access to the global economy without adding operational drag.

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