AI agents for business finance: what they can and can't do
What AI agents can do in bookkeeping, close, collections and compliance today, where a person must stay in charge, and how to judge a product.
The short answer
When your US bank returns the ACH debit that funded a transfer to Nigeria, the remittance company has not been paid, so it will cancel the transfer if the naira has not gone out, or treat the amount as money you owe if it already has. Expect your bank's returned-payment or NSF fee, any fee the app was charged (Remitly's agreement says you must reimburse it), and limits on paying by bank until it is settled.
What an ACH return is
When you pay a remittance app "from bank account", the app sends an ACH debit to your US bank asking for the money. The bank can refuse and send it back, which is a return. Common reasons are not enough money in the account, a closed or wrong account, or the account holder telling the bank the debit was not authorised. The ACH network's operating rules, set by Nacha, govern return reasons and deadlines; the exact codes are not reproduced on Nacha's public pages we read.
Timing is what causes trouble. Wise says ACH payments usually take up to four business days to reach it and the debit usually appears in your account within two to three business days. Some apps release the naira to Nigeria before the debit has fully settled, so a return can arrive after your family has already been paid.
What happens next, case by case
| Situation | What usually follows | What you do |
|---|---|---|
| Transfer not yet paid out in Nigeria | The app cancels or holds it; nothing reaches the recipient | Fix the cause, then start a new transfer |
| Naira already delivered | The app has paid out money it has not received; you owe it the dollar amount | Contact the app, pay what is owed by another method |
| You told your bank the debit was unauthorised, but it was yours | The app sees an unauthorised claim on a transfer you made | Withdraw the claim with your bank and settle with the app |
| Someone else used your bank details | A genuine unauthorised debit | Report to your bank within 60 days of the statement (12 CFR 1005.11) |
The costs
- Your bank's fee. Many banks charge a returned-item or NSF fee; check your bank's fee schedule. Remitly's user agreement says it is "not responsible for any non-sufficient funds fees" your bank charges.
- The app's costs. Remitly's agreement says that if a payment causes Remitly to be charged a fee, you must reimburse the equivalent amount, and that fees owed remain payable even after your account is closed.
- Restrictions. Remitly says it may decline or cancel transactions when funds are insufficient and may suspend an account or a specific payment method. Expect to be asked to pay by debit card for a while, or to pass extra checks.
- A negative balance at your bank. Some accounts go negative instead of returning. Chime's agreement, for example, says ACH debits are limited to the available balance, a negative balance must be covered "immediately", and an account negative for 90 days or more may be closed.
Example of what you might owe
Example only. Tunde, in Maryland, sends $600 to his mother in Ibadan, paid by ACH. The naira is delivered the same day. Three business days later his bank returns the debit because a rent payment cleared first, and charges him a $35 returned-item fee (an invented figure for this example). He now owes the app $600 for the transfer and any fee it was charged, and he has paid his bank $35. If the app was charged, say, $5, his total outlay to fix the mistake is $640 plus the original transfer fee. Nothing comes back from Nigeria: the transfer was completed as instructed.
Steps to sort it out
- Check your bank statement and the app's transaction history to see whether the transfer was delivered.
- Find out why the bank returned the debit. If it was a mistake by the bank, ask the bank to put it in writing.
- Contact the app through its in-app support, quote the transfer reference and offer to pay the balance. Ask whether it can be paid by debit card.
- Do not open a new account with the same app to get round the restriction; most agreements, Remitly's included, allow one account per customer.
- Keep a written record of what you paid and when, and ask the app to confirm in writing that the balance is cleared.
If you cannot pay straight away
Tell the app, rather than going quiet. Remitly's agreement does not describe a collections process, so what happens to an unpaid balance is not set out there; settling it directly, even in parts if the app agrees, keeps the matter between you and the provider and lets you ask for written confirmation when it is cleared.
How to avoid it next time
- Leave the money in the account until the debit has posted, not just until you have pressed send.
- Use a debit card for urgent transfers; Wise, for example, lists card pay-ins at 0 to 30 minutes.
- Check standing orders and rent payments due the same week.
- If you change banks, update the payment method in every app before closing the old account.
Where Pryme fits
With a Pryme account opened from the US, you can move dollars in first and send naira only from money already in your balance, which takes the bounced-debit risk out of the transfer. Conversion happens with Swap; the app shows the rate and the fee before you approve. For related problems, see being charged twice for one transfer.
Questions people ask
Will my family in Nigeria lose the money if my ACH payment bounces?
Usually not if it was already delivered. The provider pays out as instructed, and you then owe it the dollar amount. If it was not yet paid out, the transfer is normally cancelled.
Can Remitly charge me if my bank payment is returned?
Remitly's user agreement says you must reimburse fees Remitly is charged because of your payment, and it is not responsible for your bank's NSF fees.
How long after a transfer can an ACH debit be returned?
Most returns for insufficient funds come within a few business days of the debit. Unauthorised-debit claims by consumers can come later; your bank's error rules give you 60 days from the statement to report one.
Why can I no longer pay by bank in the app after a return?
Apps commonly restrict bank payments after a return to manage risk. Clear any balance owed and ask support when bank payments can be restored.
Sources
- Remitly: User Agreement, US (effective 23 Feb 2026) · accessed Oct 2026
- Wise Help: Paying with your connected bank account (ACH) in the US · accessed Oct 2026
- Wise Help: USD transfers (pay-in times by method) · accessed Oct 2026
- Chime: Deposit Account Agreement, The Bancorp Bank, N.A. (Rev. 09/2026) · accessed Oct 2026
- CFPB: Regulation E, 12 CFR 1005.11, procedures for resolving errors (accounts and debit cards) · accessed Oct 2026
- CFPB: Problems sending money to another country? (modified 12 Dec 2024) · accessed Oct 2026
This article is general information, not financial, legal or tax advice. Products described are provided under the terms on this site and are subject to regulation and eligibility.