Routing numbers identify the financial institution side of a payment, while account numbers identify customers’ specific accounts. Both are often needed to move money electronically.
Key Takeaways
- Nine-digit identifier: Routing numbers help payment systems direct transactions to the correct institution.
- Different from the account number: The account number identifies the individual deposit account.
- Used for ACH and direct deposit: Payroll and electronic bill payments commonly require both numbers.
- Wire instructions can differ: A bank can provide a separate routing number or set of instructions for wires.
How a Routing Number Works
Payment systems use routing information to identify where a transaction should be sent. Account information then tells the receiving institution which customer account should be credited or debited.
Routing numbers are institution identifiers, not secret authentication credentials. They are printed on checks and routinely shared for legitimate payment setup.
Routing Number vs. Account Number
| Routing number | Account number |
|---|---|
| Identifies the financial institution or routing endpoint | Identifies the customer’s specific account |
| Usually nine digits in the U.S. ABA system | Length varies by institution |
| Can be shared by many customers at the bank | Unique to the account within the institution’s system |
Where to Find a Routing Number
Bank websites and mobile apps commonly display routing information for direct deposit and ACH. A paper check also typically prints the routing number along the bottom.
Confirming the number directly with the bank or credit union is safest, especially before a large or unfamiliar transfer.
Routing Numbers and Direct Deposit
Payroll setup generally requires a routing number and account number so the employer can send an ACH credit to the correct destination.
The direct deposit instructions provided by the bank should be used rather than guessing from another account or an old check.
Routing Numbers and ACH Transfers
ACH transfers commonly use the receiving financial institution’s routing number together with the account number and account type.
A returned payment can occur when routing or account data is invalid, the account is closed, or other network conditions are not met.
Do Banks Have More Than One Routing Number?
Yes. A large institution can have multiple routing numbers because of geography, mergers, product systems, or payment type.
Wire transfers can also use different instructions from ACH or checks. One document’s number should not be assumed to work for every payment channel.
Routing Number vs. Debit Card Number
A debit-card number identifies the card relationship and payment card, not the bank’s ACH routing information.
Entering a debit-card number where a routing number is requested can cause setup failure or misdirect the payment process.
Frequently Asked Questions (FAQs)
Is a routing number the same as an account number?
No. Routing information identifies the financial institution, while the account number identifies the specific account.
Are routing numbers always nine digits?
U.S. ABA routing numbers use nine digits.
Can the same bank have multiple routing numbers?
Yes. Large banks can use different routing numbers by region, product, or payment method.