A bank transit number is a code that identifies which bank branch holds your account
When you write a check or set up a direct deposit, you need three pieces of information: your account number, your routing number, and sometimes your transit number. The transit number tells the banking system exactly which physical branch of your bank processes your account. It is different from your routing number, which identifies the entire bank.
Think of it this way: the routing number is like the address of your bank's main headquarters, but the transit number is like the address of the specific branch where your account lives. If you bank at a large national bank with hundreds of branches, the transit number makes sure your money goes to the right location.
Not every bank uses transit numbers the same way, and some smaller banks or online-only banks may not use them at all. But if your bank is part of a larger network with multiple branches, you will likely need this number for certain transactions.
Key Takeaways
- A transit number identifies the specific branch where your account is held, separate from your routing number which identifies the entire bank.
- You can find your transit number on the bottom left of your checks, in your online banking portal, or by calling your bank's customer service line.
- Transit numbers are most commonly needed for direct deposit setup, wire transfers, and other electronic transfers between accounts.
- Many online banks and smaller institutions do not use transit numbers because they do not have physical branches.
Where to find your transit number
The easiest place to look is the bottom left corner of your checks. You will see a series of numbers printed there. The first set of numbers is your routing number (usually nine digits), and the second set is your transit number (usually four digits), followed by your account number on the right side.
If you do not have checks or prefer not to look at them, log into your online banking account. Most banks display your transit number in the account details or settings section, sometimes labeled as "branch number" or "transit code." You may need to click through to a page about your specific account.
If you cannot find it online, call your bank's customer service number on the back of your debit card or on their website. Have your account number ready, and tell them you need your transit number. They can give it to you in under a minute.
When you actually need a transit number
Direct deposit is the most common reason you will need this number. When you start a new job or set up automatic deposits, your employer's payroll system uses your routing number, transit number, and account number to send your paycheck to the right place. Without the correct transit number, the deposit might be delayed or sent to the wrong branch.
Wire transfers sometimes require a transit number, especially if you are sending money between branches of the same bank. If you are wiring money to a different bank entirely, you typically only need the routing number and account number, not the transit number.
Some bill payment systems and automatic transfer setups may ask for it as well, though many modern systems only ask for the routing number and account number. When in doubt, ask the organization requesting the information whether they need the transit number or if the routing number is enough.
The difference between transit number and routing number
These two numbers serve different purposes, and mixing them up can cause problems. Your routing number identifies your entire bank — it is the same for every customer at that bank, no matter which branch they use. Your transit number identifies your specific branch within that bank.
A large bank like Chase or Bank of America has one routing number but dozens or hundreds of transit numbers, one for each branch location. A smaller regional bank or a credit union might have only one transit number because it has only one location.
For most everyday transactions, the routing number is what matters. But for transactions that need to go to a specific branch — like setting up direct deposit at a particular location — the transit number ensures accuracy.
Banks and institutions that do not use transit numbers
Online banks like Ally, Charles Schwab, or Discover do not have physical branches, so they do not use transit numbers. They only use routing numbers. If an online bank asks you for a transit number, you can usually leave that field blank or enter zeros.
Credit unions sometimes use transit numbers and sometimes do not, depending on their size and structure. If your credit union is part of a larger network with multiple locations, it may use them. If it is a single-location credit union, it probably will not.
When you are setting up a new account or starting a new transaction, the form will tell you whether a transit number is required. If the field is optional or the system does not ask for it, you do not need to worry about finding one.
What happens if you use the wrong transit number
If you give the wrong transit number for direct deposit, your paycheck might be delayed while the bank sorts out where it should go. The money usually ends up in the right place eventually, but it can take several extra days. This is why it is worth double-checking the number before you submit it to your employer.
For wire transfers, using the wrong transit number can cause the transfer to fail or be rejected. The sending bank will usually catch the error and ask you to correct it before the money leaves your account. This is another reason to verify the number with your bank before initiating a large transfer.
For routine bill payments or automatic transfers between your own accounts, the system is usually forgiving enough to route the money correctly even if the transit number is slightly off. But it is still better to get it right the first time.
Frequently Asked Questions
Is my transit number the same as my account number?
No. Your account number identifies your specific account, while your transit number identifies the branch where that account is held. Both appear on your checks, but they are separate numbers in different positions.
Do I need a transit number for online transfers to other banks?
Usually not. Most online transfer systems only ask for the routing number and account number. The transit number is mainly used for transfers within the same bank or for direct deposit setup.
What if my bank merged with another bank?
After a merger, your transit number may change as branches are consolidated or reorganized. Your bank will notify you of any changes and update your account information. Contact your bank if you are unsure whether your transit number has changed.
Can I use my routing number instead of my transit number?
Sometimes, but not always. For direct deposit, you typically need both. For other transactions, the routing number alone may work. When a form asks for a transit number, it is best to provide it rather than substitute the routing number.
Why do some banks call it a "branch number" instead of a transit number?
Different banks use different terminology for the same thing. "Branch number," "transit number," and "branch transit number" all refer to the code that identifies your specific branch. The function is the same regardless of what your bank calls it.