How Square Payment Devices Work and What They Cost

What a Square Payment Device Does

A Square payment device is a small hardware reader that connects to your phone or tablet and lets you accept credit cards, debit cards, and digital wallets in person. Instead of running a customer's card through a traditional register terminal, you tap, insert, or swipe the card into the Square reader, and the payment processes through Square's system. The money moves into your bank account, usually within one to two business days.

Square makes several different readers. The most common is the Square Reader, a small white square that plugs into your phone's headphone jack or charging port. There's also the Square Terminal, a standalone device that works without a phone, and the Square Stand, which holds an iPad and is built for a counter or checkout area. Each one connects to Square's software, which tracks sales, inventory, and customer information on the same app or dashboard.

You don't need to own a physical store to use one. Freelancers, contractors, food vendors, and service providers use Square readers to collect payment on the job site or at a client's home. The device itself is inexpensive or free depending on which model you choose, but Square charges you a fee every time a card is processed.

Key Takeaways

• Square readers plug into your phone or tablet and let you accept card payments anywhere, with money deposited to your bank account in one to two business days.
• Square charges a percentage of each transaction (typically 2.6% plus 10 cents for in-person card payments) plus monthly fees if you use certain features.
• The Square Reader itself costs nothing or around $10, but you pay per transaction; the Square Terminal costs more upfront but works without a phone.
• You need a bank account, a phone or tablet, and internet connection to use Square, and you should understand what happens if a customer disputes a charge.
• Square is one option among many; other payment processors like PayPal, Stripe, and Toast have different fee structures and features.

How Square Charges You

Square's main cost is a per-transaction fee. For in-person card payments, you pay 2.6% of the sale plus 10 cents per transaction. That means on a $100 sale, Square takes $2.70. If you accept payments online or over the phone (keyed in manually), the rate is higher: 3.5% plus 30 cents. Digital wallet payments like Apple Pay or Google Pay processed in person use the same 2.6% plus 10 cents rate.

Some Square plans charge a monthly subscription. The basic Square plan has no monthly fee—you only pay per transaction. Square Plus costs $99 per month and includes things like advanced reporting and staff management features. Square Premium costs $299 per month and adds more inventory tools and customer insights. If you're just starting out or processing a small number of transactions, the basic plan with no monthly fee is usually the right choice.

Square also charges if you want to accept payments by mail, phone, or invoice. Those transactions cost 3.5% plus 30 cents. If a customer disputes a charge (called a chargeback), Square charges you $15 to investigate it, and if the dispute is ruled against you, you lose the sale amount plus the $15 fee.

Which Square Device to Choose

The Square Reader is the most affordable entry point. It costs nothing if you sign up for a Square account, or around $10 if you buy it separately. It's a small device about the size of a sugar cube that plugs into your phone's charging port or headphone jack. You need a smartphone or tablet running iOS or Android, and you need an internet connection (WiFi or cellular data). It works well for small businesses, service providers, and anyone who moves around—a plumber collecting payment at a job site, a personal trainer at a client's home, or a vendor at a farmers market.

The Square Terminal is a standalone device that doesn't need a phone. It's a small touchscreen about the size of a paperback book. It costs around $399 upfront and works on its own with just an internet connection. You don't need to own a smartphone, and customers can see the total and tip options on the Terminal's screen. It's better for a fixed location like a small retail shop or food cart where you want a dedicated checkout device.

The Square Stand holds an iPad and is designed for a counter. It costs around $299 and is best if you already own an iPad and want a professional-looking setup. The iPad runs Square's point-of-sale software, and the Stand holds it at an angle customers can see.

What You Need to get your free guide

To use Square, you need a business bank account in your name or your business's name. Square deposits your payments into this account. You also need a valid Social Security number or Employer Identification Number (EIN), a government-issued ID, and an address. Square runs a background check as part of its signup process.

You need an active internet connection—WiFi or cellular data—to process payments. If your internet goes down, most Square readers can store a few transactions and process them once you're back online, but you should not rely on this for regular use. You also need a phone or tablet (for the Square Reader) or just the Terminal device itself (if you choose the Terminal).

Square will ask for your bank account details, including your routing number and account number. This is how they deposit your money. They may also ask for information about your business—what you sell, how much you expect to process monthly, and whether you've had payment processing before. If you're new to payment processing or have a history of chargebacks, Square may limit how much you can process per day or week until you build a track record.

How Money Moves From Customer to Your Bank

When a customer pays with a card, here's what happens: the card reader sends the card information to Square's servers. Square checks with the customer's bank to make sure the card is valid and the account has enough money. If approved, Square holds the money temporarily. The customer sees the charge on their statement, and you see the sale in your Square dashboard right away.

One to two business days later, Square deposits the money into your bank account, minus their fee. So if you process $1,000 in sales on a Monday, you might see $973 in your account on Wednesday (after Square's 2.6% plus 10 cents per transaction). Weekends and holidays can delay deposits. If you process a payment on Friday evening, the deposit might not hit until Monday or Tuesday.

If a customer disputes a charge within 180 days, the money can be pulled back out of your account. Square investigates the dispute, and if the customer wins, you lose the sale amount and pay a $15 dispute fee. This is called a chargeback. To protect yourself, keep records of what you sold, when, and to whom.

Chargebacks and Disputes

A chargeback happens when a customer tells their bank that they didn't authorize a charge or didn't receive what they paid for. The bank pulls the money back from Square, and Square pulls it from your account. You lose the sale, and Square charges you $15 to handle the dispute.

To reduce chargebacks, keep clear records: save receipts, take photos of what you delivered, and get a signature or confirmation from the customer when possible. If a customer says they didn't receive a service or product, respond to Square's dispute investigation with proof that you delivered it. Square will side with you if you have evidence.

If you get too many chargebacks—what "too many" means varies, but generally more than 1% of your transactions—Square may freeze your account or close it. This is why it's important to keep disputes low and respond quickly if one happens.

Square Versus Other Payment Processors

Square is one of several companies that process in-person card payments. PayPal Here has a similar reader and charges 2.7% plus 5 cents per in-person transaction, slightly higher than Square. Stripe Terminal charges 2.7% plus 8 cents and is often used by larger businesses or those with custom software. Toast is built for restaurants and charges 2.59% plus 15 cents but includes more restaurant-specific features like kitchen display systems.

The differences are small—usually less than half a percent—but they add up if you process large volumes. Square is popular because it's simple to set up, the hardware is cheap, and the software is easy to use. If you need advanced inventory management, employee scheduling, or industry-specific features, another processor might be worth comparing.

Frequently Asked Questions

What happens if I don't have a smartphone?

You can use the Square Terminal, which is a standalone device that doesn't need a phone. It costs around $399 upfront and works on its own with just an internet connection. The Terminal has its own screen and keypad, so customers can see the total and enter their PIN or tap their card directly on the device.

Can I use Square if I have bad credit or a past chargeback?

Square may still approve you, but they may limit how much you can process per day or per month while you build a track record. Be honest during signup about any past payment processing issues. Square's underwriting team reviews each application individually, so approval is not automatic but is possible even with a complicated history.

How long does it take to get paid after a customer swipes their card?

You see the sale in your Square dashboard immediately, but the money doesn't hit your bank account for one to two business days. Weekends and holidays can delay deposits. If you process a payment on Friday after 5 p.m., the deposit might not arrive until Tuesday.

What if a customer wants to pay with cash instead?

Square's readers only accept card and digital wallet payments, not cash. If you need to accept cash, you'll need a separate cash drawer or register. Some businesses use Square for cards and handle cash separately, or they use a different payment processor that integrates with cash handling.

Can I refund a customer after they've paid?

Yes. In your Square dashboard, you can issue a refund for any transaction. The refund goes back to the customer's card, and it usually takes one to two business days to appear in their account. Square charges you the same per-transaction fee on the refund as it does on the original sale, so refunding a $100 transaction costs you the same 2.6% plus 10 cents.