Mobile deposits usually get rejected for one of a short list of reasons: a photo the app can’t read, a missing or wrong endorsement, a mismatch between the check and what you typed in, a duplicate, a deposit-limit breach, or a check type the app doesn’t accept. The error message rarely tells you which, so the fastest way to figure out why your mobile deposit was rejected is to walk the list in order.
The Photo the App Can’t Read
Image quality is the single most common cause of a rejection, and it’s the easiest to fix. Your bank’s app uses optical character recognition to read the magnetic-ink line along the bottom edge of the check, which contains the routing number, account number, and check number. Shadows, glare, or an unsteady hand can make any of those digits unreadable, and the system rejects the deposit before it evaluates anything else.
The software also needs to see all four corners of the check to confirm it has a complete document. Patterned tablecloths, wood grain, and colored surfaces confuse the edge-detection algorithm. A plain, dark surface with even overhead lighting solves most of these problems. Hold the phone parallel to the check, keep your fingers out of the frame, and wait for the app’s auto-capture to confirm focus before it snaps.
Missing or Wrong Endorsement
Even a perfectly clear image will be rejected if the back of the check isn’t endorsed the way your bank wants. Most banks now require a restrictive endorsement: your signature plus a phrase like “For Mobile Deposit Only” written in the endorsement area. Some banks also want the account number or the bank’s name.
The requirement comes out of a federal rule aimed at stopping the same paper check from being deposited twice at different institutions. Under Regulation CC, a bank that accepts the original paper version of a check that was already deposited electronically can seek reimbursement from the bank that processed the image. If the original check carried a restrictive endorsement like “For Mobile Deposit Only” and was then brought to a teller window, the second bank loses that reimbursement right.1eCFR. 12 CFR Part 229 – Availability of Funds and Collection of Checks (Regulation CC) That indemnity framework gives banks a strong reason to insist on the endorsement, and their apps enforce it by rejecting deposits without it.
If your app doesn’t spell out the wording, “For Mobile Deposit Only” followed by your signature is the safe default. Use dark ink, write inside the endorsement area, and make sure it’s fully visible in the photo.
Mismatches Between the Check and What You Typed
The data you enter in the app has to match what’s on the check. When it doesn’t, the deposit gets flagged. The common ones:
- Dollar amount typed incorrectly. If you type $1,500 but the check reads $1,050, the deposit fails. Check both the numerical amount and the amount written in words.
- Words and numbers on the check disagree with each other. When the written-out amount and the numerical amount conflict, the check is still legally valid and the written words control under the Uniform Commercial Code. Many mobile deposit systems flag the discrepancy anyway rather than decide which amount to process, so you may need to deposit it in person or ask the issuer for a corrected check.2Legal Information Institute. UCC 3-114 Contradictory Terms of Instrument
- Payee name doesn’t match your account. The “Pay to the Order of” line has to match the name on your bank account. A maiden name, a nickname, or a slight misspelling may pause the deposit for manual review or reject it outright.
Stale-Dated and Post-Dated Checks
Dates trip people up because the rules aren’t what most people assume. A check older than six months is considered stale-dated. Banks have no obligation to honor a stale check, though they’re permitted to do so at their discretion. Most mobile deposit systems just reject them. If you’re sitting on an old check, contact the issuer for a replacement.
Post-dated checks are the opposite problem. Many people believe a bank can’t process a check before the date written on it, but that isn’t how the law works. Under the Uniform Commercial Code, a bank can pay a post-dated check before its date unless the account holder has given the bank advance notice not to.3Legal Information Institute. UCC 4-401 When Bank May Charge Customer’s Account Even with that legal permission, most mobile apps reject post-dated checks as a blanket policy to avoid disputes. You’ll need to wait until the date on the check arrives.
It’s a Duplicate
If you already deposited this check through mobile deposit and try again, the system will catch it. Banks use image-matching and check serial numbers to detect duplicates, even across different accounts at the same institution. This is one reason banks require the restrictive endorsement, and one reason you shouldn’t destroy the paper check right after depositing.
Accidental duplicates are more common than you’d think. The app might have frozen during submission and you weren’t sure the first attempt went through, or a joint account holder may have deposited the same check at a branch. Before resubmitting, look at your account’s pending transactions or recent activity to see whether the first deposit actually processed.
You Hit a Deposit Limit
Your bank caps how much you can deposit through the app. Limits usually apply on a daily basis and on a rolling 30-day basis. A typical personal checking account might allow somewhere between $2,500 and $5,000 per day, with a monthly ceiling around $10,000, though the exact numbers depend on your bank, your account type, and your deposit history. A single check that exceeds the daily limit, or a series of smaller deposits that push past the monthly cap, gets an automatic rejection.
Business accounts generally come with significantly higher mobile deposit limits than personal accounts. If you regularly deposit checks that exceed your current caps, contact your bank about an upgrade. Many will raise your ceiling after reviewing your account history and deposit patterns, sometimes without requiring a full account change.
The rejection message usually won’t tell you the specific limit you hit. Look in your bank’s mobile deposit terms, often buried in the app’s settings or the deposit agreement you accepted when you enabled the feature, to find your current daily and monthly caps.
The Check Type Isn’t Eligible
Some checks can’t be deposited through a mobile app regardless of how clean the image is or how well you endorsed it. The most common ineligible items:
- Third-party checks. A check made out to someone else who signed it over to you needs in-person verification of both signatures. Almost no bank accepts these through mobile deposit.
- Checks drawn on foreign banks. Items drawn on non-U.S. financial institutions can’t be processed through standard domestic check capture and require specialized handling.4U.S. Department of the Treasury Bureau of the Fiscal Service. Cash and Check Deposits
- Money orders and cashier’s checks without standard routing numbers. If the instrument doesn’t have a machine-readable routing and account number printed along the bottom, the OCR system can’t process it.
- Checks payable to multiple people. If a check is made out to “John and Jane Doe,” both payees need to endorse it, and many banks require both parties to present identification in person. Checks using “or” between names are more flexible, but policies on accepting these through mobile deposit vary widely.
All of these require a trip to a physical branch. If you’re unsure whether your item qualifies, check your bank’s mobile deposit terms or call before making the drive.
What to Do After a Rejection
Start with the obvious. Re-read the error message even if it’s vague, then work through the common culprits in order. Image quality first, since it’s the cheapest fix: front and back captured clearly, endorsement visible with the restrictive language your bank requires, amount you entered matching the check exactly.
If the image looks fine, check that the check itself is eligible. Not stale-dated, not post-dated, not made out to someone else, not over your daily or monthly limit. If you’ve already attempted this deposit once, look at pending transactions to rule out a duplicate.
When the rejection doesn’t match anything you can identify, call your bank. Representatives can usually see the specific reason code that triggered the rejection, even when the app only shows a generic message. If you believe the rejection is an error, ask the representative to document your concern. Federal rules require banks to have procedures for investigating reported errors on electronic transactions, and you have 60 days from the statement reflecting the issue to raise it.5Consumer Financial Protection Bureau. 1005.11 Procedures for Resolving Errors
One more thing while you’re sorting this out: don’t throw away the paper check as soon as the app says “deposit submitted.” Most banks require you to hold onto the original for at least 10 to 30 days after the deposit posts. If the deposit is returned or the bank needs to verify the item, you’ll need the paper. Once the funds have fully cleared and the retention period has passed, shred the check rather than tossing it, since leaving deposited checks around creates an opportunity for someone to deposit the same item again.