You can deposit checks into Square Checking using the mobile app's check deposit feature or by mailing the check to Square's processing center
Square Checking is a business checking account offered through Square, the payments platform. If you have a Square Checking account, you can deposit paper checks in two ways: through the Square app on your phone (which uses mobile check deposit) or by mailing the check directly to Square's address. Mobile deposit is faster—usually 1 to 2 business days—while mailed checks take longer but work if you don't have the app or prefer not to use it.
The mobile deposit method is the most common route. You photograph the front and back of the check using your phone camera within the Square app, and the system reads the check information automatically. You don't need to visit a bank branch or ATM. Mailed deposits work the same way any other mailed check does: Square receives it, processes it, and credits your account after verification.
Key Takeaways
- Mobile check deposit through the Square app is the fastest method and typically clears within 1 to 2 business days.
- You photograph both sides of the check using your phone camera; Square's system reads the routing number, account number, and amount automatically.
- Mailed checks should be sent to the address Square provides in your account settings and take longer to process, usually 5 to 10 business days.
- Square Checking accounts have daily deposit limits for mobile deposits, which vary based on your account history and verification status.
- Once deposited, the funds appear in your account balance, and you can use them immediately even if the check hasn't fully cleared.
How to deposit a check using the Square app
Open the Square app on your phone and navigate to the Checking section. Look for the option labeled "Deposit a Check" or "Mobile Deposit"—the exact wording varies slightly depending on your app version. Tap that option to start the deposit process.
You'll be prompted to photograph the front of the check. Hold your phone steady and position the check so that all four corners are visible and the image is clear. The check should fill most of the frame but not be cropped. Take the photo, then review it to make sure the routing number, account number, and amount are all readable. If the image is blurry or cut off, retake it.
After the front is captured, photograph the back of the check the same way. The back typically shows an endorsement line where you sign. Square's system will read both images and display the check amount and other details for your review. Confirm that the amount is correct, then submit the deposit. The app will show you a confirmation number—save this or screenshot it for your records.
The funds usually appear in your account within 1 to 2 business days. Square may place a temporary hold on the funds while the check clears, but you can often use the money immediately for purchases or transfers even during the hold period.
Daily and monthly deposit limits for mobile check deposits
Square Checking accounts have limits on how much you can deposit per day using mobile check deposit. These limits vary based on your account age, verification status, and deposit history. New accounts typically start with lower limits—often $1,000 to $5,000 per day—and the limit may increase over time as you build a track record of successful deposits.
You can check your current daily limit by opening the Checking section of the Square app and looking at the deposit details or account settings. If you need to deposit more than your daily limit, you can either wait until the next day to deposit additional checks or use the mailed deposit method, which has no daily limit but takes longer to process.
If you regularly exceed your daily limit, contact Square support through the app or your account settings. They can review your account and may raise your limit based on your usage patterns and account standing.
Mailing a check to Square instead of using mobile deposit
If you prefer not to use the mobile app or if you're depositing a check that's damaged or difficult to photograph, you can mail it to Square. Log into your Square Checking account online or open the app and find the mailing address for check deposits—this address is usually listed under deposit options or account settings. Write it down or copy it carefully.
Endorse the back of the check by signing your name on the line provided. Do not write anything else on the back. Place the check in an envelope and mail it to the address Square provides. Use regular first-class mail or a tracked service like certified mail if you want confirmation of delivery.
Mailed checks typically take 5 to 10 business days to clear, depending on when Square receives them and how long processing takes. There is no daily limit for mailed deposits, so this method works if you need to deposit a large amount or multiple checks at once. Keep your own records of what you mailed and when, in case you need to follow up.
What happens if a check deposit is rejected or fails
A mobile check deposit can fail for several reasons: the image is too blurry or cropped, the check is damaged or illegible, the routing or account number doesn't match the bank's records, or the check itself is fraudulent or has already been deposited elsewhere. If Square rejects your deposit, the app will show an error message explaining why. Common reasons include "image quality too low" or "unable to read check information."
If the image quality is the problem, retake the photos with better lighting and a steadier hand. Make sure all four corners of the check are visible and the text is sharp. If the check itself is damaged, torn, or faded, mailing it to Square may work better because a human can review it.
If Square suspects the check is fraudulent or has already been deposited, they will hold the deposit and contact you. Do not attempt to re-deposit the same check. If you believe the rejection is an error, contact Square support through the app with your confirmation number and the reason given for the rejection.
Funds availability and holds on deposited checks
When you deposit a check, Square credits your account balance immediately in most cases, even though the check hasn't fully cleared yet. This means you can use the funds right away for purchases, transfers, or withdrawals. However, Square may place a temporary hold on the funds while the check clears with the issuing bank, which typically takes 1 to 2 business days for mobile deposits.
During the hold period, the funds count toward your balance and you can spend them, but Square retains the right to reverse the deposit if the check bounces or is flagged as fraudulent. If the check does bounce, Square will deduct the amount from your account and may charge you a fee. This is rare with legitimate checks, but it's why the hold exists.
Mailed checks take longer to clear because they must be physically received and processed. During this time, the funds are not available for use, even though they may appear in your account. Once the hold lifts, the funds are yours to use without restriction.
Endorsing and preparing a check for deposit
Before you deposit any check—whether by mobile app or mail—you must endorse it. Endorsement means signing the back of the check on the line provided. For a personal check, sign your name exactly as it appears on the front. For a business check made out to your business name, sign the business name followed by your signature.
Do not write anything else on the back of the check beyond your signature. Do not add account numbers, deposit instructions, or other notes. Square's system reads the back of the check, and extra writing can interfere with processing or cause the deposit to be rejected.
Make sure the check is not post-dated (dated in the future). Square will reject post-dated checks. Also verify that the amount written in words matches the amount in numbers. If they don't match, the check may be rejected or the bank may honor only the amount written in words.
Frequently Asked Questions
Can I deposit a check made out to someone else into my Square Checking account?
No. The check must be made out to you or your business name. If a check is made out to someone else, that person must endorse it to you by signing the back and writing "Pay to the order of [your name]," and then you sign below. However, many banks and services, including Square, do not accept third-party endorsed checks. Contact Square support to ask about their policy before attempting this.
What's the difference between the amount shown in my account and the amount that's actually available to spend?
Your account balance includes deposited checks that are still on hold. The available balance is the amount you can actually spend or transfer. Square shows both figures in your account. During the hold period (usually 1 to 2 business days), the full balance is available to use, but Square can reverse it if the check bounces.
How do I know if my check deposit went through?
After you submit a mobile deposit, the Square app shows a confirmation number and a receipt. The deposit also appears in your transaction history within the Checking section. You can tap on the transaction to see the status. If you mailed a check, contact Square support with your mailing date and check amount to ask about processing status.
Can I deposit a check that's already been deposited somewhere else?
No. Depositing the same check twice is check fraud, even if you do it by accident. Square's system checks for duplicate deposits and will reject the check if it detects that it's already been processed. If you accidentally deposit a check twice, contact Square immediately to report it.
What should I do if a check bounces after I've already spent the money?
If the check bounces, Square will reverse the deposit and deduct the amount from your account. If you've already spent the money, your account balance will go negative. You'll be responsible for paying back the amount, and Square may charge you a fee for the bounced check. Contact the person or business who gave you the check and ask them to provide a new check or payment method.