Bank Code Verified

071912813, Routing Number for BMO HARRIS BANK,N.A., NAPERVILLE, IL

Routing Number: 071912813

Date of Revision: 091912




State: IL

Zip: 60563

Phone: (855) 259-8521

Understanding Routing Numbers and Their Significance in Banking TransactionsIn the realm of banking, routing numbers play a crucial role in ensuring that transactions are processed accurately and efficiently. Whether you’re making a wire transfer, setting up direct deposit, or even ordering checks, understanding routing numbers is essential.

This article will delve into the significance of routing numbers, their history, and shed light on BMO Harris Bank, N.A., a prominent financial institution in the United States.

The Significance of Routing Numbers

Routing numbers, also known as ABA routing numbers or routing transit numbers, are unique identifiers assigned to banks and credit unions by the American Bankers Association (ABA). These numbers, consisting of nine digits, act as an address that helps facilitate the transfer of funds between financial institutions.

Think of them as the postal code for your money!

1. Simplifying Transactions

Routing numbers simplify the process of transferring funds between financial institutions.

When you provide your routing number along with your account number, it ensures that the funds are directed accurately to your designated bank or credit union. This eliminates the possibility of the money being misdirected or lost in transit.

2. Identifying Financial Institutions

Routing numbers also serve the purpose of identifying specific financial institutions.

Each bank or credit union has its own unique routing number, allowing other institutions to identify where the funds need to be sent. This system ensures that the correct institution is credited with the transfer, preventing errors and miscommunication.

3. Electronic Transactions

In the digital age, electronic transactions are more prevalent than ever.

Whether you’re making an online payment or setting up direct deposit, routing numbers are required to ensure the smooth execution of these transactions. By providing your routing number, you enable the electronic transfer of funds directly to the intended recipient, eliminating the need for physical checks or cash.

A Brief History of BMO Harris Bank, N.A.

BMO Harris Bank, N.A., a subsidiary of the Bank of Montreal (BMO), has a rich history that dates back to the 19th century. Let’s take a brief journey through time to explore the foundation and evolution of this esteemed financial institution.

1. Founding and Early Growth

BMO Harris Bank traces its roots to 1882 when it was founded as Harris Bank by Norman Wait Harris.

It operated as a small, local bank in Chicago, Illinois, catering to the needs of individuals and businesses in the area. Over the years, Harris Bank expanded its operations and gained a solid reputation for its personalized service and commitment to its customers.

2. Mergers and Acquisitions

In 1921, Harris Bank merged with Chicago National Bank, further expanding its reach and customer base.

This merger solidified Harris Bank’s position as a significant player in the regional banking landscape. Subsequent mergers and acquisitions over the years allowed the bank to grow its assets and establish a strong presence in the Midwest.

3. The BMO Era

In 1984, the Bank of Montreal acquired Harris Bank, marking the beginning of a new era for the institution.

The acquisition provided Harris Bank with access to extensive resources and international expertise. In 2011, Harris Bank officially changed its name to BMO Harris Bank, reflecting its deepened connection to its parent company.

4. Present-Day BMO Harris Bank

Today, BMO Harris Bank, N.A. is a well-established financial institution with a wide range of banking products and services.

It serves personal, commercial, and corporate clients across the United States, offering everything from traditional savings and checking accounts to mortgages, loans, and investment services. BMO Harris Bank continues to prioritize customer satisfaction and innovative solutions to meet the evolving needs of its customers.


Understanding routing numbers is essential for anyone engaging in banking transactions. These unique identifiers simplify and expedite the transfer of funds, ensuring accuracy and preventing errors.

Furthermore, gaining insights into the history of financial institutions like BMO Harris Bank, N.A. allows us to appreciate the evolution of the banking industry and the growth of esteemed institutions that have stood the test of time. By continuing to educate ourselves about the intricacies of banking, we empower ourselves to make informed decisions and navigate the financial landscape with confidence.

Topic 3: Key Functions of Routing Numbers

Routing numbers serve several key functions in the world of banking. Let’s explore these functions in more detail to gain a comprehensive understanding of their importance.

1. Identifying Financial Institutions

One of the primary functions of routing numbers is to identify specific financial institutions within the United States.

Each bank or credit union is assigned a unique routing number, which acts as an identifier for that particular institution. When initiating a transaction, whether it’s a wire transfer, direct deposit, or electronic payment, the routing number ensures that the funds are directed to the correct bank or credit union.

This identification process is crucial in preventing miscommunication and ensuring that the money reaches its intended destination. 2.

Facilitating Electronic Transactions

In the digital age, electronic transactions have become the norm. Routing numbers play a critical role in facilitating these transactions, allowing individuals and businesses to make payments, receive funds, and conduct other financial activities seamlessly.

Whether you’re setting up online bill payments, making purchases with your debit card, or receiving salary through direct deposit, routing numbers enable the smooth transfer of funds through electronic channels. By providing your routing number, you ensure that the transaction is processed accurately and efficiently, eliminating the need for physical checks or cash.

3. Enabling Automated Clearing House (ACH) Payments

The Automated Clearing House (ACH) network is a secure system used for processing electronic payments in the United States.

Routing numbers are a vital component of this system, as they help identify the originating and destination financial institutions involved in the transaction. Whether it’s an electronic transfer between two bank accounts or a direct deposit from an employer, routing numbers enable ACH payments to be executed swiftly and accurately.

4. Supporting Check Processing

Routing numbers are also essential for check processing, ensuring that funds are properly credited or debited from bank accounts.

When you write a check, your routing number is printed at the bottom, along with your account number and other pertinent information. When the check is deposited or cashed, the routing number helps direct the funds to the correct financial institution for verification and clearance.

This process ensures that the money is deducted from your account and credited to the recipient’s account accurately and efficiently. 5.

International Wire Transfers

Routing numbers play a critical role in facilitating international wire transfers. When sending or receiving funds from overseas, financial institutions use a combination of routing numbers and other identifying codes to ensure that the transfer is processed accurately and in compliance with international regulations.

The routing number helps international banks identify the appropriate correspondent bank in the United States, which further facilitates the transfer to the intended recipient’s account. Topic 4: The Role of Routing Numbers in Bank Transactions

Routing numbers play a vital role in various bank transactions, ensuring that funds are directed accurately and efficiently.

Let’s delve deeper into the specific areas where routing numbers are utilized. 1.

Direct Deposits

Many employers offer direct deposit as a convenient way to pay their employees. With direct deposit, an individual’s salary and other earnings are electronically transferred to their bank account.

To set up direct deposit, employees must provide their routing number and account number to their employer. This information enables the employer’s financial institution to route the funds directly to the employee’s account.

Routing numbers are crucial in ensuring that the funds reach the correct bank and account, expediting the payment process and providing individuals with faster access to their money. 2.

Online Bill Payments

In our digital world, online bill payments have become increasingly popular. Whether you’re paying utility bills, student loans, or credit card bills, routing numbers are essential for these transactions.

When setting up online bill payments, you typically enter your bank account information, including your routing number and account number. This information allows the payment to be routed directly to the payee’s bank account, ensuring that the funds are received promptly and accurately.

Routing numbers ensure that the payment is correctly associated with the intended recipient, avoiding any potential delays or errors. 3.

Wire Transfers

Routing numbers are vital in both domestic and international wire transfers. Wire transfers are a secure and expedited method of transferring funds between different financial institutions.

Whether it’s a business making a payment to a supplier or an individual sending money to a family member, routing numbers are required to ensure the accurate and efficient transfer of funds. The routing number helps financial institutions identify the sending and receiving banks, facilitating seamless communication and enabling the funds to be delivered to the correct account.

4. Automated Clearing House (ACH) Payments

ACH payments, as mentioned earlier, are electronic transfers processed through the Automated Clearing House network.

These payments include direct deposits, payroll transactions, and electronic bills. Routing numbers play a crucial role in ACH payments by identifying the financial institutions involved in the transaction.

They ensure that the funds are correctly debited from the originating account and credited to the recipient’s account, guaranteeing seamless and efficient money transfers. 5.

Check Processing

Even in the digital age, checks are still used for certain transactions. When you write a check, your routing number is printed at the bottom, along with your account number.

When the check is deposited or cashed, the routing number is used to identify the bank and account that the funds should be drawn from. The routing number plays a critical role in check processing, ensuring that the funds are accurately transferred from the payer’s account to the recipient’s account.


Routing numbers are the backbone of efficient and accurate banking transactions. Whether it’s identifying financial institutions, facilitating electronic transactions, supporting check processing, enabling wire transfers, or ensuring smooth ACH payments, routing numbers play a crucial role in keeping the financial system running smoothly.

By understanding the significance of routing numbers and leveraging them correctly, individuals and businesses can navigate the banking landscape with confidence, making transactions with ease and precision.

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