While ACH deposits are reliable in most cases, they can sometimes fail due to account issues, such as insufficient funds or an incompatible account type.
What happens when an ACH deposit fails
In the rare event that an ACH payment fails, your deposit will be marked as Unsettled in your CEX.IO account transactions history. This status indicates that the funds were not successfully transferred from your bank. Your account balance may reflect a pending amount that needs to be resolved.
How to Resolve an Unsettled Deposit
If your deposit is marked as Unsettled, follow the steps in the notification you received from CEX.IO to settle the balance manually.
Check your email and/or in-app notification; there will be a direct link and step-by-step instructions to settle the outstanding balance. Until the balance is settled, some account features may be temporarily restricted.
Common reasons & solutions for ACH failure
1. Insufficient funds
Unlike card payments, ACH transfers are not validated in real time — the funds are pulled from your account after a short delay. The most common reason for an ACH failure is that your bank account did not have enough funds to cover the deposit amount at the time of processing.
How to fix:
Verify your bank balance and check your daily "External Transfer" limits within your banking app
Top up and wait for pending transactions to clear
Start with a smaller amount to test the connection
Use an alternative method if funds are unavailable. Any of these can be used to complete your deposit while you resolve the ACH issue:
Debit/credit card
Google/Apple Pay
PayPal
Domestic wire
2. Savings account used instead of checking
Savings accounts are not supported for ACH transfers due to federal banking regulations that limit the number of outgoing transactions from savings accounts.
If you linked a savings account, the deposit will fail even if the balance is sufficient.
How to fix:
Remove the savings account if you already linked it to CEX.IO:
-> In the CEX.IO App, go to Payment Methods in your Profile menu and delete the linked ACH savings account.
-> If you use the CEX.IO website, open the Wallet page and switch to Account manager. Choose the Bank account and delete the linked ACH savings account.
Re-link your ACH checking account. You can do so when requesting your next fiat deposit or on the Payment methods (mobile app)/Account manager (website) page
Retry once the correct (checking) account is linked
If you are unsure which type your account is, check with your bank directly or look for the account type in your banking app.
Other possible causes
The bank account was closed or deactivated after being linked to CEX.IO.
The bank rejected the ACH pull due to internal security rules.
The account details on file no longer match your current bank account.
Sometimes, an ACH decline happens for reasons that aren’t visible in the CEX.IO app. If you’ve confirmed that your account has sufficient funds and is a checking account, the issue may be a specific security block on your bank's side.
Contact your bank’s customer service or fraud department. Ask if there are any restrictions on external ACH Transfers or specific blocks on payments to digital asset platforms.
We know that payment declines are frustrating. To support our community, CEX.IO occasionally issues limited-time promotional offers to users who have encountered transaction issues. If you received a notification regarding a special promotional offer, you can read the Official Promotion Rules here.
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