Square Credit Card Rates Depend on the Card and Your Credit Profile
Square does not issue its own credit cards. Instead, Square Cash Card and Square Debit Card are payment tools that let you access funds from your Square account — they are not credit products that charge interest. If you are looking for a credit card with Square branding or a card issued through Square's partnerships, the rates you pay depend entirely on which card you choose and the terms set by the actual card issuer.
The confusion often arises because Square is known as a payment processor for small businesses, not a credit card company. When people search for "Square credit card rates," they are usually either looking for information about using a credit card to fund a Square account, or they want to understand the fees Square charges when you process credit card payments through their system. Those are two different things, and the answer changes based on which one you need.
Key Takeaways
- Square does not issue credit cards or charge interest rates on card balances — Square Cash Card and Square Debit Card are prepaid payment tools, not credit products.
- If you use a credit card to load money into Square, the interest rate you pay comes from your credit card issuer, not from Square.
- Square charges processing fees when you accept credit card payments as a business, but these are transaction fees, not interest rates.
- The fees Square charges for payment processing vary by business type and payment method, ranging from around 2.6% to 3.5% plus per-transaction fees for card-present and card-not-present sales.
How Square Processes Credit Card Payments for Businesses
If you run a business and accept credit cards through Square's payment system, you pay a processing fee each time a customer swipes, taps, or enters their card. This is not an interest rate — it is a flat percentage of the transaction plus a small per-transaction charge. Square's standard rate for in-person card payments is around 2.6% plus 10 cents per transaction, though the exact amount depends on your industry and sales volume.
Online payments and invoices processed through Square typically cost around 2.9% plus 30 cents per transaction. If you use Square's virtual terminal or process payments by phone, the rate is usually higher — around 3.5% plus 15 cents. These are one-time fees taken from each sale, not ongoing interest charges. You pay them once per transaction, and the fee is deducted from the money Square deposits into your business account.
Square also offers different pricing tiers for high-volume sellers. If you process a large amount of payments each month, you may be able to negotiate a lower rate or move to a subscription plan where you pay a monthly fee instead of per-transaction percentages. The exact terms depend on your business type and sales history, so it is worth contacting Square directly to discuss your situation.
Using a Credit Card to Fund Your Square Account
You can link a personal credit card to your Square Cash account to load money, but Square itself does not charge you interest for doing this. However, your credit card issuer may treat the transaction as a cash advance, which typically comes with a higher interest rate and an upfront fee. Cash advances usually carry rates between 20% and 30% annual percentage rate (APR), significantly higher than the purchase APR on the same card.
To avoid this, check with your credit card issuer before linking your card to Square. Some issuers classify money transfers and account funding as purchases rather than cash advances, which means you would pay your regular purchase APR instead. Others treat any transfer of funds as a cash advance automatically. The only way to know is to call the customer service number on the back of your card and ask how they classify Square transactions.
If your card issuer does treat it as a cash advance, you are better off using a debit card or bank transfer to fund Square instead. That way you avoid interest charges altogether, since you are only moving money you already have.
Square Cash Card and Square Debit Card Have No Interest Rates
Square Cash Card and Square Debit Card are prepaid payment cards linked to your Square Cash account balance. Because they draw from money you have already deposited, they do not involve borrowing and therefore do not charge interest. You load money into the account, and then you can spend it using the card. There is no credit component and no interest rate.
These cards do have other fees — for example, out-of-network ATM withdrawals may cost $2, and some account activities carry small charges. But interest rates do not explore because you are not borrowing money. You are spending your own funds that are held in the Square account.
Comparing Square's Processing Fees to Other Payment Processors
If you are a business owner deciding whether to use Square, it helps to understand how their processing fees stack up against competitors. Stripe, for example, charges 2.9% plus 30 cents for online payments, which is identical to Square's online rate. PayPal charges 2.2% plus 30 cents for in-person payments with their card reader, which is lower than Square's 2.6% plus 10 cents.
The difference between processors is often small, and the best choice depends on factors beyond just the rate: how straightforward the software is to use, whether the reporting tools match your business needs, how fast you get paid, and what customer support looks like. Some businesses find that Square's simplicity and integration with other tools is worth paying a slightly higher rate than a competitor. Others prioritize the lowest possible fee and choose a processor with a lower percentage.
When you are comparing, make sure you are looking at the same type of transaction. In-person rates are usually lower than online rates across all processors, so a processor that looks cheap for card-present sales might be expensive for invoices. Calculate what you would actually pay based on your own sales mix, not just the headline rate.
What Happens If You Carry a Balance on a Linked Credit Card
If you link a credit card to Square and then carry a balance on that card, you pay interest to your credit card issuer, not to Square. The interest rate is whatever your card's APR is — typically between 15% and 25% for most people, though it can be higher or lower depending on your creditworthiness and the card's terms.
This is an important distinction: Square is not charging you interest. Your credit card company is. Square is straightforward the platform where you chose to spend the money. If you want to avoid interest charges, the solution is to pay off your credit card balance in full each month, not to change payment processors.
That said, if you find yourself regularly funding Square with a credit card and carrying a balance, it is a sign that you might benefit from a different funding method. A personal loan or line of credit often has a lower interest rate than a credit card, and the terms are more predictable. Talk to your bank about whether a personal loan makes sense for your situation.
Frequently Asked Questions
Does Square charge interest on my account balance?
No. Square Cash and Square Debit Card are prepaid accounts, not credit products. You load money in and spend it — there is no borrowing and no interest. If you carry a balance on a credit card you linked to Square, that interest comes from your card issuer, not Square.
What is the difference between Square's processing fees and interest rates?
Processing fees are one-time charges per transaction, usually a percentage plus a flat amount. Interest rates are ongoing charges on borrowed money. Square charges processing fees when you accept payments as a business, but does not charge interest because it does not lend money to consumers.
Will Square treat my transfer as a cash advance?
Square itself will not, but your credit card issuer might. Call your card issuer and ask how they classify money transfers and account funding. Some treat them as purchases, others as cash advances. The answer determines whether you pay your regular APR or a higher cash advance rate.
Is Square's 2.6% processing fee the same for all businesses?
No. The rate depends on your industry, sales volume, and whether the payment is in-person or online. High-volume sellers may negotiate lower rates or move to a subscription model. Contact Square directly with information about your business to learn what rate you would pay.
Can I avoid fees by using Square Debit Card instead of processing credit cards?
Square Debit Card has no processing fees because it is a prepaid card, not a payment processor. But if you run a business and need to accept customer payments, you still need a payment processor like Square's card reader or online payment system. The debit card is for spending your own money, not for accepting payments from customers.