Square is one of the most widely-known credit card processing services. They were one of the first to provide users with a magstripe reader that could be plugged directly into a smartphone or tablet and now offer a variety of point-of-sale tools to help businesses process electronic payments.


Variety of hardware and hardware support. Square makes it easy and inexpensive to get up and running if you want to accept credit cards via a card reader. If you’re a new user, they’ll send you a free card reader. They also sell chip readers and a fully integrated point of sale register.

Free invoicing. You can generate invoices within Square, including some minimal customization such as adding your logo, and email them to your clients. Clients can authorize you to keep a card on file to pay the invoice if they prefer. There’s no fee for your clients to pay an invoice.

Loans. Qualified Square sellers can get a loan through Square and pay the loan back via automatic deductions from your credit card transactions.


  • All swiped credit cards (where you have the physical card present and it is processed through a card reader) have a 2.75% fee per transaction.
  • All keyed-in credit cards (where you manually enter a credit or debit card) have a 3.5% fee per transaction and an additional 15 cents per transaction.
  • All invoiced transactions (where your client pays an invoice generated by Square) have a 2.9% fee per transaction and an additional 30 cents per transaction.


Image of Square Laptop, Tablet and Mobile View

Starting Monthly Fee$0
Starting Processing Fee2.75%
Free TrialNo
Accept Payments
Accept Payments via Website
Recurring Payment
Send Invoices
Request Payments
Accepts Major Credit Cards
eCheck/ACH Deposits
International Transactons
Issue Refunds
Fraud Protection
Trust Account Compliance

Things You Might Want to Know

Security. If you’re using Square’s card reader, the data is encrypted at the moment of swipe. Keyed-in data is encrypted when it transmits to Square. Square is Payment Card Industry (PCI) compliant. Servers are monitored around the clock.

Apps and Integrations. Square integrates with leading accounting software like QuickBooks and Xero. It also works with scheduling software like Acuity so that clients can book and pay for appointments online. You can also integrate Square with form builders like Jotform. Square has mobile apps for both iOS and Android. With those apps, you can accept credit cards, send and track invoices, send receipts, and access transaction history.

Who Square Is For

Square is easy to set up and easy to use. Thanks to built-in invoicing and easy integration with accounting software, it can make the process of getting charging your customers, getting your money, getting it deposited, and tracking it very easy. However, Square is much better suited for retail businesses who want to be able to accept physical credit cards and sell merchandise. If you are just getting started with accepting electronic payments, Square is a good first step, but many firms will likely outgrow the retail-based paradigm relatively quickly.

Square Rating:


  • 8.7/10
    Customer Experience & Support - 8.67/10
  • 7.3/10
    Pricing & Value - 7.33/10
  • 10/10
    Security - 10/10
  • 7.7/10
    Innovation & Future-Proofing - 7.67/10
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Our Rating: 4.2/5

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