Your routing number is a nine-digit code that identifies your bank. You need it to set up direct deposit, send or receive wire transfers, pay bills electronically, and link external accounts. There are several quick ways to find it, depending on whether you have a checkbook, use online banking, or neither.
Find It on a Paper Check
The fastest method if you have a checkbook: flip to any check and look at the bottom. You’ll see a line of numbers printed in a special font. According to the American Bankers Association, which created the routing number system, the routing number is the left-most number on that line. Your account number comes next, followed by the individual check number.
The routing number is always exactly nine digits. It’s often bracketed by small symbols that look like vertical lines or colons, which separate it visually from the account number. If you see a number with more or fewer than nine digits, you’re looking at the wrong group.
Find It in Online or Mobile Banking
If you don’t have checks, your bank’s website or mobile app will show the routing number. The exact menu path varies by bank, but the pattern is consistent: log in, select your checking or savings account, and look for a link or option labeled something like “Account and Routing Numbers” or “View Account Details.” Some banks display it on the main account summary screen, while others tuck it behind a tap or click.
For example, PNC’s mobile app shows it when you select your account and then tap “Account and Routing Numbers.” Their online banking displays it just below the account name after you click “View Account/Routing Number.” Most banks follow a similar approach. If you can’t find it, searching “routing number” in your bank’s app or help section usually gets you there in seconds.
Find It on Your Bank’s Website
Even without logging in, most banks publish their routing numbers on a public page, often titled “Routing Number” or listed under customer service. A quick search for your bank’s name plus “routing number” will typically pull up the right page. Just make sure you’re on your bank’s official site and not a third-party directory.
One thing to watch: large banks often have more than one routing number. The number assigned to your account may depend on the state or region where you originally opened it, or it could reflect a past merger with another bank. If your bank lists multiple routing numbers by state, use the one for the location where your account was opened, not necessarily where you live now. When in doubt, the number shown inside your online banking portal for your specific account is the most reliable.
Call Your Bank Directly
If none of the above options work, call the customer service number on the back of your debit card or on your bank’s website. A representative can confirm the correct routing number for your account in a couple of minutes. This is especially useful if your bank has gone through mergers and you’re unsure which of several routing numbers applies to you.
ACH vs. Wire Routing Numbers
Here’s a detail that catches people off guard: your bank may use different routing numbers for different types of transactions. The routing number printed on your checks is typically your ACH routing number, used for direct deposits, automatic bill payments, and electronic transfers between bank accounts. But if you’re sending or receiving a wire transfer, your bank may require a separate wire routing number.
ACH transfers handle routine, everyday payments where speed isn’t critical. Wire transfers are typically used for large or time-sensitive transactions, like closing on a house. If someone asks for your routing number for a wire transfer specifically, don’t assume the number on your check is correct. Check with your bank or look on their website for a wire transfer routing number, which is sometimes listed separately.
Where You’ll Need Your Routing Number
You’ll be asked for your routing number in a handful of common situations:
- Direct deposit: Your employer needs it (along with your account number) to deposit your paycheck electronically.
- Tax refunds: The IRS uses it to send your refund directly to your bank account instead of mailing a check.
- Automatic bill payments: Utilities, loan servicers, and subscription services use it to pull payments from your account.
- Transferring money between banks: Linking an external account at another bank requires both your routing and account numbers.
- Wire transfers: Domestic and international wires require a routing number, though international transfers may also need a SWIFT code, which is a separate identifier your bank uses for cross-border payments.
Verify a Routing Number
If you want to double-check that a routing number is valid and belongs to the right bank, the American Bankers Association maintains an official lookup tool on its website at aba.com. You can enter a nine-digit number and confirm which institution it’s tied to. This is useful if you’re setting up a payment and want to make sure you copied the number correctly before submitting.
Your routing number isn’t secret the way your account number or password is. It’s printed on every check you write. But you should still be careful about sharing your account number alongside it, since the combination of both is what someone would need to initiate a withdrawal from your account.

