Use Square Checking if you want everything in one place; use an external account if you need the safety of a separate bank or want to avoid Square's fees.

The choice comes down to three things: whether you want Square to hold your money, whether you're willing to pay Square's monthly fee, and how much you trust a single company with your operating funds. Square Checking is a deposit account held at Lincoln Savings Bank, not at Square itself—that matters for your protection. But it costs $15 per month, and you can only move money out through Square's system. An external account at your regular bank is free, gives you full control, and keeps your business money separate from Square's operations. Most sellers use both: Square Checking for convenience and their bank account as a backup or for larger transfers.

Key Takeaways

  • Square Checking is held at Lincoln Savings Bank and FDIC-insured, but costs $15 monthly and only lets you move money through Square's system.
  • An external bank account is free, gives you direct access to your money, and protects you if Square's service goes down or changes its terms.
  • Square Checking deposits happen faster (usually next business day) than transfers to an external account (one to three business days).
  • You can link both at the same time—many sellers use Square Checking for daily operations and their bank account for larger withdrawals or backup access.
  • If you use Square Checking, your money is protected by FDIC insurance up to $250,000, the same as any other bank account.

How Square Checking Works and What It Costs

Square Checking is a deposit account that Square offers through Lincoln Savings Bank. When you set it up, you get a debit card, online access, and the ability to move money out to other accounts or withdraw cash. Square deposits your sales into this account automatically, usually the next business day. The account costs $15 per month with no minimum balance, no overdraft fees, and no per-transaction charges.

The catch is that you can only move money out through Square's system—you cannot call the bank directly and request a wire transfer or ACH payment. If you need to send money somewhere that Square does not support, you have to move it to an external account first. You also cannot deposit checks or cash directly into Square Checking; you have to use Square's mobile deposit feature or deposit through a partner ATM network.

How External Bank Accounts Work and Why They Matter

An external account is a checking or savings account at your own bank—Chase, Bank of America, a credit union, or any other institution. You link it to Square during setup, and Square can deposit your sales directly into that account instead of into Square Checking. There is no fee to Square for this, and you keep full control: you can write checks, set up automatic bill payments, request wire transfers, or withdraw cash at any ATM.

The downside is speed. Deposits to an external account usually take one to three business days, compared to next business day for Square Checking. If you need your money fast—to cover payroll or pay a supplier—the delay matters. You also lose the convenience of a single account: your Square sales go to your bank, but you still have to manage Square's dashboard separately.

Speed, Control, and When Each One Makes Sense

Use Square Checking if you run a high-volume business where you need cash quickly and do not mind paying $15 monthly for faster access. Restaurants, retail shops, and service businesses that process dozens of transactions daily often benefit from next-business-day deposits. The debit card also lets you pull cash when ready if you need it for supplies or change.

Use an external account if you process fewer transactions, want to avoid the monthly fee, or need the flexibility of a full-service bank. If you only sell a few times a week, the one-to-three-day delay is usually not a problem. If you need to wire money to a vendor or set up automatic payments, your bank account gives you options that Square Checking does not. Many sellers also use an external account as a safety net: if Square's service goes down or if you decide to stop using Square, your money is already somewhere you can access it directly.

FDIC Protection and What Happens to Your Money

Both accounts are FDIC-insured up to $250,000. Square Checking is insured because it is held at Lincoln Savings Bank, a real bank with federal deposit insurance. Your external account at your bank is also FDIC-insured. The difference is that if Lincoln Savings Bank fails, the FDIC covers your Square Checking balance. If your bank fails, the FDIC covers your external account. In practice, this almost never happens—bank failures are rare and FDIC protection is reliable.

What matters more is what happens if Square itself goes out of business or stops offering Checking. Your money in Square Checking would still be protected by the FDIC because it is at Lincoln Savings Bank, not at Square. But you would lose the convenience of Square's system managing it. Your external account would not be affected at all—it would still be at your bank, under your control.

Using Both Accounts at the Same Time

You can link multiple accounts to Square and choose which one receives deposits. Many sellers set it up this way: Square Checking for daily operations and their bank account as a backup. You might deposit to Square Checking for the first $5,000 of sales each month, then switch to your external account for anything above that. Or you might use Square Checking for regular sales and your bank account for refunds or chargebacks, which Square handles differently.

To set up a second account, go to your Square Dashboard, find the Transfers section, and add a new linked account. You will need your routing number and account number from your bank. Square will verify the account by depositing two small amounts (usually under $1 each) and asking you to confirm the amounts. Once verified, you can choose which account receives your next deposit.

Fees, Limits, and Hidden Costs

Square Checking costs $15 per month. There are no other fees for deposits, transfers, or debit card use. Your external bank account is free through Square, but your bank might charge you fees—overdraft fees, monthly maintenance fees, or ATM fees if you use out-of-network machines. Check your bank's fee schedule before you decide.

Square does not limit how much you can deposit to either account, but your bank might. Some banks cap daily deposits or require you to report large transfers. If you process very high volumes, call your bank ahead of time and let them know. Square also does not charge fees for moving money between accounts, but your bank might charge for outgoing wire transfers or ACH payments—usually $0 to $3 per transaction.

Frequently Asked Questions

Can I use Square Checking if I do not have a business bank account?

Yes. Square Checking is your business account—you do not need a separate one. You can use it as your only account if you want. Many sole proprietors and small business owners do this because it is simpler than managing two accounts.

What happens to my money if I stop using Square?

If you have Square Checking, your money stays in the account at Lincoln Savings Bank. You can still access it through the debit card or by transferring it to your external bank account. You lose the ability to manage it through Square's dashboard, but the money is yours. If you have an external account, nothing changes—your money is already at your bank.

How long does it take to transfer money from Square Checking to my external account?

Usually one to three business days, the same as a deposit from Square to an external account. Square processes the transfer when ready, but your bank takes time to receive and post it. Weekends and holidays add extra days.

Is Square Checking safe?

Yes. It is held at Lincoln Savings Bank, a real bank with FDIC insurance. Your money is protected the same way it would be at any other bank. Square does not hold your money directly—the bank does.

Should I close my external bank account if I use Square Checking?

No. Keep it open as a backup. If Square's service goes down, you still have access to your money through your bank. If you ever stop using Square, you already have somewhere to move your money. The account is free, so there is no reason to close it.