Your checking account has two main numbers you need to know

A checking account uses two separate numbers: your account number and your bank's routing number. The account number identifies your specific account at the bank. The routing number identifies the bank itself. Together, they tell the financial system exactly where your money is and where to send it.

You will see these numbers printed at the bottom of your checks, and you will need both of them to set up direct deposit, pay bills online, or receive wire transfers. They are not secret — you share them regularly — but they work together as a pair to make sure money goes to the right place.

Key Takeaways

  • Your account number is unique to your checking account and appears on your checks, statements, and online banking login.
  • Your routing number identifies your specific bank branch or banking network and is the same for all customers at that bank.
  • You need both numbers together to receive direct deposits, set up bill payments, or receive wire transfers from other people or organizations.
  • The routing number appears first on your checks (usually nine digits), followed by your account number (usually ten to twelve digits).
  • You can find both numbers on your checks, your bank statement, or by calling your bank's customer service line.

Where to find your account number

Your account number is printed on every check you receive from your bank. It appears at the bottom of the check, after the routing number. The account number is usually between ten and twelve digits long, though this varies by bank.

You can also find your account number on your monthly bank statement, in your online banking portal, or by calling your bank's customer service line. If you have a debit card, the account number may be printed on the card itself, though some banks do not print it there for security reasons.

Where to find your routing number

Your routing number is also printed on your checks, at the bottom left. It is a nine-digit code that identifies your bank or credit union. Unlike your account number, the routing number is the same for every customer at your bank — it does not change from person to person.

You can find your routing number on your bank statement, in your online banking portal, or by searching the Federal Reserve's routing number database online. If you call your bank, they can give it to you in seconds. Some banks print the routing number on debit cards as well.

Why banks use two numbers instead of one

Using two numbers instead of one makes the system faster and more reliable. The routing number tells the financial network which bank to contact. Once the money arrives at that bank, the account number tells the bank which customer's account to deposit it into. This two-step process works the same way whether money is moving between two accounts at the same bank or crossing the country.

If a bank changed its routing number, it would have to notify every employer, every bill-pay service, and every customer who had set up direct deposits or automatic payments. By keeping the routing number stable and using the account number for individual accounts, banks can make changes to individual accounts without disrupting the entire system.

What the numbers look like on a check

At the bottom of a check, you will see a series of numbers in a special magnetic ink format. Reading from left to right, the first nine digits are the routing number, followed by a space, then your account number (usually ten to twelve digits), then another space, and finally the check number itself.

The magnetic ink allows banks to sort checks by machine rather than by hand. The order matters: routing number first, then account number. If you are writing down these numbers to give to someone else, make sure you copy them in the right order.

When you need to share these numbers

You will need to provide both your routing number and account number when you set up direct deposit for a paycheck or government benefit. You will also need them if you want someone to send you a wire transfer, if you are setting up automatic bill payments, or if you are receiving a transfer from another bank.

You do not need to share these numbers for everyday debit card purchases or ATM withdrawals. You also do not need to share them just to open the account — the bank creates these numbers for you when you sign the paperwork.

Keeping your numbers safe

Your account number and routing number are not passwords. You share them regularly with employers, government agencies, and other financial institutions. However, you should not write them down and leave them lying around, and you should not share them with anyone who calls you unexpectedly claiming to be from your bank.

If someone has your account and routing numbers, they cannot access your account without additional information like your PIN or online banking password. Real banks never call customers asking for account numbers — they already have that information in their system. If someone calls asking for these numbers, hang up and call your bank directly using the number on your card or statement.

Frequently Asked Questions

Do I get a new account number if I close my account and open a new one?

Yes. Each account gets its own unique account number when it is created. If you close your checking account and open a new one at the same bank, you will receive a new account number. The routing number stays the same because it identifies the bank, not the account.

Can I use just my account number without the routing number?

No. You need both numbers together. The routing number tells the financial system which bank to contact, and the account number tells that bank which account to use. Without the routing number, the system does not know where to send the money.

What if I have multiple checking accounts at the same bank?

Each account gets its own account number, but they all share the same routing number. The routing number identifies your bank; the account number identifies which specific account at that bank you are using.

Are there any other numbers I need to know about my checking account?

Your bank may assign you a customer ID number for logging into online banking, but that is different from your account number. Some banks also use a branch number, though this is less common now. Your debit card has its own card number as well. For most banking purposes, you only need the account number and routing number.