What Square Does With Your Payment

Square is a payment processor that moves money from a customer's card or bank account into a merchant's account. When you swipe, tap, or key in a card at a Square reader, Square captures that transaction, sends it to the customer's bank, waits for approval, and deposits the funds into the merchant's bank account—usually within one to two business days.

Square does not hold the money itself. It acts as the intermediary between the merchant, the customer's bank, and the merchant's bank. The company makes money by taking a percentage of each transaction (called an interchange fee) plus a flat per-transaction fee. For a merchant, Square is one option among several payment processors; for a customer, it is invisible—you see only that the merchant accepts cards.

Key Takeaways

  • Square is a payment processor that moves money from a customer's card into a merchant's bank account, typically within one to two business days.
  • Square charges merchants a percentage of each transaction plus a flat fee per transaction, not the customer.
  • Square offers hardware (card readers, point-of-sale terminals) and software (invoicing, online checkout) so merchants can accept payments in multiple ways.
  • The actual money movement happens through the banking system and card networks; Square coordinates the steps but does not hold customer funds.
  • Square is one of many payment processors; others include Stripe, PayPal, and traditional merchant services providers.

How Money Moves Through Square

When a customer pays with a card through Square, the transaction follows a fixed path. The customer's card information goes to Square's system, which forwards it to the card network (Visa, Mastercard, American Express, or Discover). The card network routes it to the customer's bank, which checks the account balance and fraud signals, then approves or declines the charge.

If approved, the customer's bank sends a confirmation back through the card network to Square. Square then batches that transaction with others from the same day and sends a settlement request to the merchant's bank. The merchant's bank receives the funds and deposits them into the merchant's account. This entire process—from card swipe to merchant bank deposit—takes about 24 to 48 hours, though the customer's bank may show the charge when ready.

Square keeps a record of every transaction in its system so the merchant can see sales history, refund transactions if needed, and reconcile their records. But the actual movement of money happens through the banking system and card networks, not through Square's accounts.

Square Hardware and Software Options

Square offers different tools depending on how a merchant wants to accept payments. The most recognizable is the Square Reader, a small device that plugs into a phone or tablet and reads physical cards. A merchant can also use a Square Terminal, a standalone device that does not need a phone—it has its own screen, keyboard, and internet connection.

For online sales, Square provides Square Online Checkout, a payment form that merchants can embed on their website or send as a link. For invoicing, Square Invoices lets a merchant email a bill to a customer, who can pay directly from the invoice. For larger businesses, Square for Restaurants and Square for Retail are point-of-sale systems that track inventory, staff, and sales in addition to processing payments.

A customer does not choose which Square tool to use—the merchant does. The customer straightforward pays however the merchant has set up: by tapping a card on a reader, entering a card number on a website, or clicking a payment link in an email.

What Square Costs and Who Pays

Square charges merchants, not customers. The merchant pays a percentage of the transaction amount (the rate varies by card type and payment method) plus a flat fee per transaction. For example, a merchant might pay 2.6% plus 10 cents per card-present transaction (a customer swiping or tapping a card in person), or 2.9% plus 30 cents per online transaction.

These fees are built into the merchant's cost of doing business. A customer never sees a separate charge from Square. If a merchant raises prices to cover payment processing costs, that is a business decision the merchant makes, but Square does not bill the customer directly.

Square also offers optional add-ons: a monthly subscription for advanced features, hardware rental or purchase, and integration with accounting software. But the core service—processing a payment—costs only the per-transaction fee.

Square Versus Other Payment Processors

Square competes with Stripe, PayPal, Clover, Toast, and traditional merchant services providers. All of them do the same basic job: accept a payment, route it through the banking system, and deposit funds into a merchant's account. The differences are in pricing structure, hardware options, software features, and customer support.

Stripe focuses on online and software businesses and charges a flat percentage plus per-transaction fee with no monthly minimum. PayPal offers both in-person and online processing and lets customers pay with a PayPal balance as well as a card. Clover and Toast are point-of-sale systems aimed at restaurants and retail, with built-in inventory and staff management. Traditional merchant services providers (often banks or independent sales organizations) may offer lower per-transaction rates for high-volume merchants but typically require a contract and longer setup.

A merchant chooses a processor based on where they sell (in person, online, or both), how much they sell, what features they need, and what they are willing to pay. Square is popular with small businesses and sole proprietors because the hardware is inexpensive, there is no long-term contract, and setup is fast.

How Square Handles Refunds and Disputes

If a merchant needs to refund a customer, they initiate the refund through Square's system. Square sends a reversal request back through the card network to the customer's bank. The customer's bank returns the funds to the customer's account, usually within one to three business days. The merchant's account is debited by the refund amount plus any fees that were charged on the original transaction.

If a customer disputes a charge (claiming they did not authorize it or did not receive what they paid for), the card network opens a dispute case. Square provides the merchant with tools to respond—uploading receipts, delivery confirmation, or communication with the customer. The card network then decides whether the merchant or the customer is right. If the customer wins, the funds go back to the customer and the merchant loses the money. If the merchant wins, the funds stay with the merchant.

Frequently Asked Questions

Does Square hold my money after I pay?

No. Square processes the payment and deposits it into the merchant's bank account within one to two business days. The merchant's bank holds the money in their account, not Square. Square does not keep customer funds or merchant funds.

Can I use Square if I do not have a business?

Yes. Square is available to sole proprietors, freelancers, and individuals who accept payments. You do not need to be incorporated or have a business license in most cases, though Square's terms of service do require you to be at least 18 and have a valid bank account.

What happens if my internet goes down during a payment?

Square Readers require an internet connection to process payments in real time. If your connection drops, the transaction will not go through. Square Terminals have built-in internet and can fall back to a mobile connection. Some Square systems can queue transactions offline and send them when the connection returns, but this depends on the device and settings.

Is Square safe for customers?

Square is PCI DSS compliant, meaning it meets security standards set by the payment card industry. Card data is encrypted and tokenized (converted to a code) so Square and merchants do not store full card numbers. Customers are also protected by their bank's fraud detection and by card network dispute processes if something goes wrong.

How long does it take to get paid after a sale?

Square deposits funds into a merchant's bank account within one to two business days of the transaction. The exact timing depends on the merchant's bank and when the transaction was processed. Weekends and holidays may delay deposits.