When an employer asks for a bank identification code for direct deposit, they are almost always asking for your bank’s nine-digit ABA routing number. Combined with your personal account number, that routing number tells the Automated Clearing House (ACH) network which financial institution should receive your pay and which account to credit. You can find it printed on a check, listed in your online banking, or shown on a bank statement.
What the Routing Number Does
Every bank and credit union in the United States is assigned at least one nine-digit routing number that acts as its address within the ACH network. When your employer runs payroll, the routing number points the payment to your bank, and the account number tells your bank which account to credit. The American Bankers Association maintains a database of roughly 22,000 active routing numbers covering every participating institution in the country.1American Bankers Association. ABA Routing Number
One detail catches people out: a single bank can have more than one routing number. The one used for ACH transactions like direct deposit is not always the same as the one used for wire transfers. If you give your employer the wire number by mistake, the deposit can be delayed or rejected. When you look up your number, confirm you’re using the one designated for ACH or direct deposit specifically.
Where to Find Your Routing Number
Several reliable sources will show you the right number:
- Personal checks. The routing number is the first block of nine digits along the bottom-left edge of the check, before your account number.
- Online banking or mobile app. Log in and look under account details, account summary, or a section labeled something like “account numbers.” Most banks display the routing number alongside your account number.
- Bank statements. Monthly or quarterly statements usually list the routing number near the top with your account information.
- Your bank’s website. Many banks publish routing numbers on a dedicated direct deposit or account information page.
- Federal Reserve E-Payments Routing Directory. The Federal Reserve maintains a searchable directory of routing numbers for Fedwire and FedACH participants, updated daily.2Federal Reserve Financial Services. E-Payments Routing Directory
If you bank with an online-only institution that doesn’t issue checks, the app or online portal is your primary source. When in doubt, call your bank and ask for the routing number used for ACH direct deposits.
What Else Goes on the Authorization Form
Your employer’s direct deposit form will typically ask for four things:
- Bank name. The legal name of your financial institution.
- Routing number. The nine-digit ABA number for ACH transactions.
- Account number. The number identifying your specific account at that bank.
- Account type. Whether the account is checking or savings.
The federal government’s Standard Form 1199A, used for direct deposit of federal payments, collects exactly these four data points, and most private employers follow the same pattern.3Fiscal.Treasury.gov. Standard Form 1199A – Direct Deposit Sign-Up Form Some employers also ask you to attach a voided check so they can visually confirm the routing and account numbers. That’s a company policy rather than a legal requirement. If you don’t have checks, a printout or screenshot from online banking showing both numbers usually works as a substitute.
Many employers also let you split your paycheck across two or more accounts. If you take that option, you’ll provide a routing number and account number for each destination, along with a dollar amount or percentage for each split. Two or three destination accounts is a common limit, depending on the payroll system.
When a SWIFT/BIC Code Applies Instead
If your employer is based outside the United States or the payment originates abroad, the transaction may travel through the SWIFT network instead of ACH. In that case, the sending party uses a Business Identifier Code (BIC), an eight- or eleven-character code standardized under ISO 9362. The eight-character version contains a four-character bank code, a two-letter country code, and a two-character location code, with an optional three-character branch code tacked on for the eleven-character version.4Swift. Business Identifier Code (BIC)
For a domestic paycheck, you won’t need a BIC. Stick with the nine-digit routing number.
What Happens After You Submit the Form
After your employer receives your authorization, they usually send a prenote through the ACH network. A prenote is a zero-dollar test transaction that verifies your routing number, account number, and account type all match a real account at the specified bank. Under ACH operating rules, the employer must wait at least two to three banking days after the prenote before sending an actual payment.
Between the prenote and normal payroll scheduling, it commonly takes one to two full pay cycles before your first electronic deposit lands. You may get a paper check during that transition. Once the system is active, deposits typically post on the morning of payday.
If you later switch banks, you’ll submit a new authorization form with the updated numbers, and another prenote will run. Keep the old account open for one or two statement cycles after the switch to catch stragglers, whether incoming deposits or automatic payments that haven’t yet redirected.
If a Deposit Goes to the Wrong Account
A single wrong digit in a routing or account number can send your pay somewhere it shouldn’t go. Speed matters when that happens. Under ACH operating rules, the originator (your employer or their bank) can initiate a reversal for an incorrect recipient, but the reversal must reach the receiving bank within five banking days after the original payment settled.5Nacha. Reversals and Enforcement Contact your employer’s payroll department the moment you notice something is off so they can act inside that window.
Also call your bank. Federal Regulation E, administered by the Consumer Financial Protection Bureau, sets consumer protections for electronic fund transfers.6eCFR. 12 CFR Part 1005 – Electronic Fund Transfers (Regulation E) If an unauthorized electronic transfer shows up on your account, your liability depends on how fast you report it:
- Within two business days of learning about the problem, your liability is capped at $50.
- After two business days but within 60 days of your statement, liability can rise to $500.
- After 60 days from the statement date, you could be responsible for the full amount of unauthorized transfers that occur after the 60-day window.7eCFR. 12 CFR 1005.6 – Liability of Consumer for Unauthorized Transfers
Review your statements each cycle. The sooner you spot a problem, the stronger your protections.
Protecting Your Deposit From Payroll Diversion Fraud
Payroll diversion scams work by impersonating an employee, usually through a spoofed email, and asking payroll to redirect that person’s direct deposit to a new account the fraudster controls. The victim often doesn’t notice until payday arrives with no deposit.
A few habits reduce your exposure:
- Share your routing and account numbers only through your employer’s official HR portal or directly with the payroll department. Don’t send them in response to an email, even one that appears to come from a familiar name.
- If you work in payroll or HR and get a request to change someone’s direct deposit, confirm it by calling the employee at a number you already have on file, not a number in the email.
- Watch for a paper check arriving when you normally get direct deposit, unexpected email-forwarding rules on your account, or payroll messages showing up in your deleted folder. Any of these can signal that someone has tampered with your instructions.
- Check your account on payday. Early detection preserves the strongest tier of Regulation E protection.
If you suspect a diversion, notify payroll and IT immediately, then call your bank to flag the account.