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You may have noticed the nine-digit code at the bottom left of most checks. Called the ABA routing number (also known as a bank routing number), it identifies which financial institution is responsible for paying the check. You might also think of it as your bank’s numerical address or ID number.

It’s no big deal if you don’t know your bank’s ABA number by heart, but nevertheless, those nine digits are an important facet of many daily financial transactions, such as online bill-pay and signing up for direct deposit.

Here, you’ll learn what this number is, how it’s used, how to find it, and more information to keep your financial life running smoothly.

What Is an ABA Number?

Developed by the American Bankers Association (that’s where the ABA comes from), the main purpose of an ABA routing number is to make sure money gets where it needs to go.

In other words, routing numbers help identify which bank is responsible for paying money or giving credit to another bank. The routing number can also be used to identify which bank will receive payment or credit for a check or electronic transaction.

Rather than reading the name of a bank off a check (and potentially making a mistake), these numbers help enable bank employees and the machines that process checks do that job quickly and accurately.

Both the receiving and paying banks can use the routing number to improve the efficiency of their payment process operations.

ABA numbers also give consumers and businesses a reason to trust the banking system. Sellers can feel confident they will in fact get paid with funds from a legitimate bank and the buyers can rest easy knowing that they can prove their money is accessible and they can make a purchase or pay a bill.

What Do ABA Digits Stand for?

Here’s a closer look at what those routing number digits actually stand for (which you can also see in the image below):

The first four digits at the left indicate the Federal Reserve Bank that oversees the financial institutions in a particular location.

The next four digits identify your financial institution, or its ABA identification number.

The last digit is what’s known as a check digit number. It verifies the authenticity of the routing number.

ABA Number vs. Bank Account Number

Two crucial pieces of banking information are an account’s ABA number and the account number.

•  The ABA number identifies the financial institution where the account is held.

•  The bank account number reflects a particular, specific bank account, whether it’s checking, savings, or another kind of account.

What Is an ABA Number Used for?

The ABA number, as mentioned above, reflects the bank where an account is held. This is a critical piece of information when financial transactions take place. It allows these to be processed correctly and swiftly.

The History of the ABA Number

These routing numbers were first developed in 1910 by the American Bankers Association (ABA). At that time, it was just helpful in check processing, but it has continued to keep pace with banking innovation, including automated clearinghouses as ACH vs. checks become more popular, online banking protocols, and electronic funds transfer. It continues to play a vital role in so many basic banking matters.

Who Can Use ABA Numbers?

For a bank to be issued an ABA number, they must be a federal or state chartered financial institution and they must be eligible to have an account at a Federal Reserve Bank.

To obtain a routing number, the financial institution will work with Accuity, which is the official registrar of ABA Routing Numbers. Any newly formed financial institutions will have to submit an application to Accuity if they want to be assigned an ABA routing number.

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Where Is the ABA Number on a Check?

When looking for the ABA routing number, look at the row of numbers at the bottom of a check.

There are a lot of numbers there, but the ABA number is the nine-digit, leftmost number. It will be the first set of nine numbers that you’ll see and begins with a 0, 1, 2, or 3.

Typically, to the right of that is the consumer’s account number, then, to the right of the account number, is the number of the check.

It’s important not to get these numbers confused, since it could lead to a delay or an error in the processing of a check, as well as any online payments you authorize.

How to Find Your ABA Numbers Without a Check

Every check in a consumer’s checkbook should include their ABA number, but if a check isn’t available, there are other ways for consumers to find out the routing number they’ll need to transfer money.

Bank Statements

Recent bank statements should list the bank’s ABA routing number alongside account information. Some bank statements come by mail or as paperless electronic statements.

Bank Website

A lot of banks prominently feature their ABA numbers on their website since so many customers want to know this information. You may want to keep in mind that some larger, national banks may have different routing numbers for different states, as well as different routing numbers for wire transfers or ACH (Automated Clearing House).

Asking Your Local Bank

Customers can always call their bank to ask what the correct ABA routing number to use is. Or if you have your account at a traditional vs. online bank, you could stop by a local branch.

ABA Online Lookup Tool

The ABA actually offers a free ABA Routing Number Lookup tool that can make it simple to find routing numbers for banks. Please note that users can only utilize this tool to look up two ABA numbers per day, and can’t look up more than ten numbers in the course of a month. Also keep in mind that some banks have different numbers for different states, as well as for different transactions.

When to Use an ABA Number

While you probably won’t need to use your ABA routing number every single day, you will likely need to enter this number for a number of common transactions, such as:

•  Direct (or ACH) deposits. When someone starts a new job and wants to set up direct deposits via ACH, they will most likely have to provide their ABA number and their bank account number.

•  Wire transfers. This involves sending or receiving money via a wire transfer, which is especially common for international transactions.

•  IRS direct deposits. To receive a tax refund, the IRS gives an option to have that money refunded via direct deposit. Allowing a direct deposit can speed up the refund process.

•  Paying bills or friends. You will likely need your routing number to sign up to pay bills online or to use mobile payment apps.

•  Making a deposit to your retirement account or transferring money to another bank. When you invest money for retirement or move money between banks, you might need to set up the transactions via ACH transfer, and that requires your bank routing number.

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What’s the Difference Between ABA and ACH Numbers?

The terms ABA and ACH (Automated Clearing House) are easy to mix up. ABA numbers are sometimes referred to as ACH numbers, although this is not technically correct.

ACH refers to an electronic fund transfer made between banks that is processed through the Automated Clearing House network.

The ACH is the main system that financial institutions utilize for electronic fund transfers. When using ACH, the funds are electronically deposited in the designated financial institutions, allowing payments to be made online.
Unlike wire transfers, ACH transfers are typically used for relatively small, and often regular, payments.

Consumers can utilize ACH for many types of transactions that put money in someone’s account and often do so without realizing it.

For example, through ACH someone could have their paychecks directly deposited into their checking and savings account or can make monthly debits for any routine bill payments, such as a student loan payment.

Many merchants allow their customers to pay their bills via ACH. The payer typically has to provide an account number and bank routing number to do so.

Online services transactions can also be conducted with ACH and most banks and credit unions use ACH for online bill payment services.

The Takeaway

The ABA routing number is a sequence of nine digits used by banks to identify specific financial institutions within the U.S. Found on the lower left of a check (as well as online and on your bank statements), you need to know your routing number for many basic financial transactions, such as paying bills online, signing up for direct deposits at work, using a mobile payment app, as well as transferring money from one financial institution to another.

Interested in opening an online bank account? When you sign up for a SoFi Checking and Savings account with eligible direct deposit, you’ll get a competitive annual percentage yield (APY), pay zero account fees, and enjoy an array of rewards, such as access to the Allpoint Network of 55,000+ fee-free ATMs globally. Qualifying accounts can even access their paycheck up to two days early.

FAQ

Are ABA numbers and routing numbers the same thing?

Yes, an ABA number and a bank routing number are the same thing. Those nine digits at the bottom of a check and to the left can be referred to by either term.

Is an ABA number always 9 digits?

Yes, the ABA or bank routing number is always nine digits long.

Does a debit card have an ABA number?

Debit cards do not have routing numbers; those nine digits are only found on checks to identify the financial institution that issued the check. Instead, debit cards have an account number as well as a PIN.

SoFi Checking and Savings is offered through SoFi Bank, N.A. Member FDIC. The SoFi® Bank Debit Mastercard® is issued by SoFi Bank, N.A., pursuant to license by Mastercard International Incorporated and can be used everywhere Mastercard is accepted. Mastercard is a registered trademark, and the circles design is a trademark of Mastercard International Incorporated.

Annual percentage yield (APY) is variable and subject to change at any time. Rates are current as of 12/23/25. There is no minimum balance requirement. Fees may reduce earnings. Additional rates and information can be found at https://www.sofi.com/legal/banking-rate-sheet

Eligible Direct Deposit means a recurring deposit of regular income to an account holder’s SoFi Checking or Savings account, including payroll, pension, or government benefit payments (e.g., Social Security), made by the account holder’s employer, payroll or benefits provider or government agency (“Eligible Direct Deposit”) via the Automated Clearing House (“ACH”) Network every 31 calendar days.

Although we do our best to recognize all Eligible Direct Deposits, a small number of employers, payroll providers, benefits providers, or government agencies do not designate payments as direct deposit. To ensure you're earning the APY for account holders with Eligible Direct Deposit, we encourage you to check your APY Details page the day after your Eligible Direct Deposit posts to your SoFi account. If your APY is not showing as the APY for account holders with Eligible Direct Deposit, contact us at 855-456-7634 with the details of your Eligible Direct Deposit. As long as SoFi Bank can validate those details, you will start earning the APY for account holders with Eligible Direct Deposit from the date you contact SoFi for the next 31 calendar days. You will also be eligible for the APY for account holders with Eligible Direct Deposit on future Eligible Direct Deposits, as long as SoFi Bank can validate them.

Deposits that are not from an employer, payroll, or benefits provider or government agency, including but not limited to check deposits, peer-to-peer transfers (e.g., transfers from PayPal, Venmo, Wise, etc.), merchant transactions (e.g., transactions from PayPal, Stripe, Square, etc.), and bank ACH funds transfers and wire transfers from external accounts, or are non-recurring in nature (e.g., IRS tax refunds), do not constitute Eligible Direct Deposit activity. There is no minimum Eligible Direct Deposit amount required to qualify for the stated interest rate. SoFi Bank shall, in its sole discretion, assess each account holder's Eligible Direct Deposit activity to determine the applicability of rates and may request additional documentation for verification of eligibility.

See additional details at https://www.sofi.com/legal/banking-rate-sheet.
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We do not charge any account, service or maintenance fees for SoFi Checking and Savings. We do charge a transaction fee to process each outgoing wire transfer. SoFi does not charge a fee for incoming wire transfers, however the sending bank may charge a fee. Our fee policy is subject to change at any time. See the SoFi Bank Fee Sheet for details at sofi.com/legal/banking-fees/.
^Early access to direct deposit funds is based on the timing in which we receive notice of impending payment from the Federal Reserve, which is typically up to two days before the scheduled payment date, but may vary.

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SOBNK-Q425-008

If you’re leaving a job, you may hear the term “rollover IRA.” But exactly what is a rollover IRA? Employees have the option of moving their retirement savings from their employer-sponsored 401(k) plan to an individual retirement account, or IRA, at another financial institution when they leave a job. This IRA, where they transfer their 401(k) savings to, is called a rollover IRA. If the 401(k) plan was not a Roth 401(k), you’ll likely want to open what’s called a traditional IRA.

In this scenario, a rollover IRA is also a traditional IRA. But they aren’t always the same. You can have a traditional IRA that is not a rollover IRA. Read on for the differences worth noting between a rollover IRA and a traditional IRA.

Is There a Difference Between a Rollover IRA and a Traditional IRA?

When it comes to a rollover IRA vs. traditional IRA, the only real difference is that the money in a rollover IRA was rolled over from an employer-sponsored retirement plan.

Otherwise, the accounts share the same tax rules on withdrawals, required minimum distributions, and conversions to Roth IRAs.

Recommended: Types of Retirement Plans and Which to Consider

What Is a Rollover IRA?

A rollover IRA is an individual retirement account created with money that’s being rolled over from a qualified retirement plan like a 401(k). Generally, rollover IRAs happen when someone leaves a job with an employer-sponsored plan, such as a 401(k) or 403(b), and they roll the assets from that plan into a rollover IRA.

In a rollover IRA, like a traditional IRA, your savings grow tax-free until you withdraw the money in retirement. There are several advantages to rolling your employer-sponsored retirement plan into an IRA, vs. into a 401(k) with a new employer:

•   IRAs may charge lower fees than 401(k) providers.

•   IRAs may offer more investment options than an employer-sponsored retirement account.

•   You may be able to consolidate several retirement accounts into one rollover IRA, simplifying management of your investments.

•   IRAs offer the ability to withdraw money early for certain eligible expenses, such as purchasing your first home or paying for higher education. In these cases, while you’ll pay income taxes on the money you withdraw, you won’t owe any early withdrawal penalty.

There are also some rollover IRA rules that may feel like disadvantages to putting your money into an IRA instead of leaving it in an employer-sponsored plan:

•   While you can borrow money from your 401(k) and pay it back over time, you cannot take a loan from an IRA account.

•   Certain investments that were offered in your 401(k) plan may not be available in the IRA account.

•   There may be negative tax implications to rolling over company stock.

•   An IRA requires that you start taking required minimum distributions (RMDs) from the account at age 73, even if you’re still working, whereas you may be able to delay your RMDs from an employer-sponsored account if you’re still working.

•   The money in an employer plan is protected from creditors and judgments, whereas the money in an IRA may not be, depending on your state.

Recommended: 4 Step Guide to Retirement Planning

What Is a Traditional IRA?

Now that you know the answer to the question of what is a rollover IRA?, you’ll want to familiarize yourself with a traditional IRA. To understand the difference between a rollover IRA vs. traditional IRA, it helps to know some IRA basics.

From the moment you open a traditional IRA, your contributions to the account are typically tax deductible, so your savings will grow tax-free until you make withdrawals in retirement.

This is advantageous to some retirees: Upon retirement, it’s likely one might be in a lower income tax bracket than when they were employed. Given that, the money they withdraw will be taxed at a lower rate than it would have when they contributed.

A Side-by-Side Comparison of Rollover IRA vs Traditional IRA

Can You Contribute to a Rollover IRA?

By now you’re probably wondering, can I contribute to a rollover IRA?, and the answer is yes. You can make contributions to a rollover IRA, up to IRA contribution limits. For tax year 2025, individuals can contribute up to $7,000 (with an additional catch-up contribution of $1,000 if they’re 50 or older). For tax year 2026, they can contribute up to $7,500 (with an additional catch-up contribution of $1,100). If you do add money to your rollover IRA, however, you may not be able to roll the account into another employer’s retirement plan at a later date.

Can You Combine a Traditional IRA With a Rollover IRA?

A rollover IRA is essentially a traditional IRA that was created when money was rolled into it. Hence, you can combine two IRAs by having a direct transfer done from one account to another, or by rolling money from one IRA to the other IRA.

There’s one important aspect of the rollover process that will help prevent the money from counting as an early withdrawal or distribution to you, and that’s being timely with any transfers. With an indirect rollover (which is when the money goes to you and you move the money into the new plan), you typically have 60 days to deposit the money from the now-closed fund into the new one. (Another option is a direct rollover, when the funds go directly from your 401(k) into the IRA account.)

A few other key points to remember: As mentioned above, if you add non-rollover money to a rollover account, you may lose the ability to roll funds into a future employer’s retirement plan. Also keep in mind that there’s a limit of one rollover between IRAs in any 12-month period. This is strictly an IRA-to-IRA limit and does not apply to rollovers from a retirement plan to an IRA.

How to Open a Traditional or Rollover IRA Account

Opening a traditional IRA and a rollover IRA are identical processes — the only difference is the funding. You can open a traditional or rollover IRA by doing the following:

•   Decide where to open your IRA. For instance, you can choose an online brokerage where you can choose your own investments, or you can select a robo-advisor that will offer automated suggestions based on your answers to a few basic investing questions. (There’s a small fee associated with most robo-advisors.)

•   Open an account. From the provider’s website, select the type of IRA you’d like to open — traditional or rollover, in this case — and provide a few pieces of personal information. You’ll likely need to supply your date of birth, Social Security number, and contact and employment information.

•   Fund the account. You can fund the account with a direct contribution via check or a transfer from your bank account, transferring money from another IRA, or rolling over the money from an employer-sponsored retirement plan. Contact your company plan administrator for information on how to do the latter.

The Takeaway

Both a rollover IRA and a traditional IRA allow investors to put money away for retirement in a tax-advantaged way, with very little difference between the two accounts.

One of the primary questions anyone considering a rollover IRA should consider is, will you keep contributing to it? If so, that would prevent you from rolling the rollover IRA back into an employer-sponsored retirement account in the future.

Whether it’s a rollover IRA you’ve created by rolling over an employer-sponsored retirement account or a traditional IRA you’ve opened with regular contributions, either account can play a key role in your retirement game plan.

Prepare for your retirement with an individual retirement account (IRA). It’s easy to get started when you open a traditional or Roth IRA with SoFi. Whether you prefer a hands-on self-directed IRA through SoFi Securities or an automated robo IRA with SoFi Wealth, you can build a portfolio to help support your long-term goals while gaining access to tax-advantaged savings strategies.

FAQ

Can you take money out of a rollover IRA?

Yes, but if you take money from a rollover IRA (or a traditional IRA for that matter) before age 59½, those withdrawals are subject to income tax and an early withdrawal penalty of 10%. There are certain exceptions, however. If you withdraw the money for certain higher education expenses or to buy your first home, for example, the penalty may not apply.

Why would you rollover an IRA?

A rollover is when you move money between two different types of retirement plans. Typically, you might roll over an IRA if you leave a job with an employer-sponsored plan, such as a 401(k) or 403(b). You would roll the assets from that plan into a rollover IRA where your savings grow tax-free until you withdraw the money in retirement.

You could instead choose to leave the money in your former employer’s plan, if that’s allowed, or roll it over into your new employer’s 401(k) or 403(b) plan, if they have one. However, a rollover IRA may offer you more investment choices and lower fees and costs than an employer-sponsored plan.

Can I roll over assets into my traditional IRA?

Yes, rolled over money can be contributed to a traditional IRA. It’s also worth noting that you can also combine a traditional IRA and a rollover IRA. You can do this with a direct transfer from one account to another, or by rolling money from one IRA to another, for instance. Just keep in mind that there is a limit of one rollover between IRAs in any 12-month period.