Commercial Center

12 months of transaction history will be available. This does not include your ACH, wire, nor Remote Deposit Capture (RDC) history. If you wish to retain more account transaction history and/or history related to ACH, wire and/or RDC history, please download before 5:00pm (PT) this Friday, March 20.

Any future transfers that are originated in your Bill Pay system will convert over to Commercial Center. Other recurring internal transfers and recurring bill payments will not. We recommend you check to ensure all the information has been transferred accurately, and that any transfers/payments are scheduled or rescheduled as needed.

If you use business online bill pay services, all your payee information will transfer over to Commercial Center along with 12 months of history. Once you have access to your account on Monday, March 23, 2026, we recommend that you check your account and bill pay/transfer information to verify it has transferred accurately. Some transferred information may be organized differently on the new platform than in your current bill pay/transfer system.

There will be a slight delay in the service used to run balance/transaction reports in Commercial Center after the transition. The data needed to run these reports will be available beginning Tuesday, March 24, 2026.

Online alerts will not transfer over to Commercial Center and will be limited to balance alerts on the new system. You will need to set them up beginning Monday, March 23, 2026, on the new system.

The system alerts from Remote Deposit Capture will change. Commercial Center users will be notified when a deposit is rejected. No alerts will be sent for accepted or adjusted deposits.

By 5:00pm (PT) Thursday, March 19: Final ACH batches must be released. ACH services via HomeStreet’s system will end.

Before 5:00pm (PT) Friday, March 20: Download ACH history. This history will not be available via Commercial Center.

Monday, March 23, 2026: Please be sure to notify the senders of Mechanics Bank’s routing and transit number, which is 121102036, and log in to Commercial Center for ACH items with an effective date of March 23, 2026 or later. Note: The HomeStreet routing number will continue to work. 

• ACH Tax templates will not be converted and will need to be reestablished
• Non-NACHA ACH file import templates will not be converted and will need to be reestablished

Your new Commercial Center password/PIN, established the first time you log into the system, will be required when you initiate an ACH transfer and at the approval step.

You should experience minimal changes to your ACH services beyond the above.

After March 23, 2026: The processing deadline for online ACH originations will be 5:00pm (PT).

At 3:00pm (PT) Friday, March 20: Wire transfer services via HomeStreet’s system will end.

Before 5:00pm (PT) Friday, March 20: Download wire history. This history will not be available via Commercial Center.

For incoming wire transfer dated after Friday, March 20, 2026, please notify the senders of Mechanics Bank's routing and transit number, which is 121102036. Note: The former HomeStreet routing number will continue to work.

The international SWIFT code will change from HOMSUS6S over to MEBKUS66.

Your new Commercial Center password/PIN, established the first time you log into the system, will be required when you initiate a wire and at the approval step.

After March 23, 2026: The processing deadline for online wire originations will be 3:30pm (PT). The processing deadline for online FX wire originations will be 1:30pm (PT).

You should experience minimal changes to your wire services beyond the above.

Friday, March 20 up until 5:00pm (PT): Review the transaction presentments on your account. If there are items you would like paid or returned in the Positive Pay system this Saturday, March 21, notify the bank by contacting Commercial Depository Services (CDS) or call your local banker. If no decision is made, we will follow the default rule established for your account over transition weekend.

Please note user access for Positive Pay is changing slightly. If a user has "maintenance" access to an account(s) AND "view-only" access to another account, the "view-only" account will not be added. In this scenario, the user will need to request "maintenance" access to the "view-only" account to see it in the Positive Pay system. The system only allows users to choose "maintenance" OR "view-only" access. A combination of both is not allowed. (A combination of both is allowed at the user level).

After your initial log-in to Commercial Center, please check the Positive Pay permission settings as the entitlements have likely changed due to system access differences between Commercial Center and HomeStreet's Business Online Banking service.

As close to 4:00pm (PT) Friday, March 20: Download any Quicken or other third-party financial software, including Direct Connect or Web Connect history you wish to retain. Learn more here

Both services will be available via Commercial Center, however, the bill pay feature will not be allowed.

Before 5:00pm (PT) Friday, March 20: Download RDC history. This history will not be available via Commercial Center.

The system alerts from RDC will change. Commercial Center users will be notified when a deposit is rejected. No alerts will be sent for accepted or adjusted deposits.

Continue to use your existing scanner: Your scanner driver will update automatically after the transition. For Online Banking Plus users: Administrators will be able to maintain their own users, however, to add, delete, or change RDC user permissions, a request will have to be made with the Mechanics Bank.

After March 23, 2026: The processing deadline for remote deposit capture will be 6:30pm (PT).

Download the Commercial Center mobile app anytime beginning on Monday, March 23, 2026.

First time login instructions 

Please note, Positive Pay mobile access has been discontinued.

If you receive eStatements (electronic statements) with your current account, you will continue to receive them. If you currently receive paper statements, you will continue to receive them. If you currently receive BOTH electronic and paper statements, you will continue to receive both.

If you are an analyzed client receiving paper analysis statements, these statements will only be available electronically via Commercial Center starting March 23.

If you are a customer who originates online Automated Clearing House (ACH) transfers using the ACH network and/or originates wire transfers online, uses Positive Pay and/or have more than 20+ entities, your business account(s) will be transitioned to the new Mechanics Bank Commercial Center Online Banking platform.

Log in to your Commercial Center account at www.mechanicsbank.com beginning on or after Monday, March 23, 2026. You’ll need to know your Company ID to do so.

Yes. You will need your current HomeStreet Company ID and User ID in order to log into Commercial Center on Monday, March 23. Enter your existing User ID in ALL CAPS. If your User ID uses any of these special characters, they will need to be removed: `~!#$%^*{}|[]\";'<>?/

When you log in to Commercial Center for the first time, you will be asked to input a temporary password. Before 5pm (PT) Friday, March 20, please log into the HomeStreet Business Online Banking system to read the secure message that explains the temporary password formula. You must have this to log in on Monday morning.

If you have not had an opportunity to access the secure message before 5pm (PT) on Friday, March 20, there will be an option to select "Forgot Password" on the Commercial Center log in page. Enter your Company ID and User ID. Once confirmed, a temporary password will be sent to the email address we have on file for your account.

If you have any questions, please call Treasury Operations by calling 800.272.1876.  

No. Instead, a one-time passcode will be generated each time you log in. The first time you log in to Commercial Center, you will be asked to create a permanent password/PIN. Once entered, the system will generate an automated, one-time passcode that will be sent to your email or via text message to authenticate your User ID. This passcode verification step will be required with every subsequent log-in and will also be required when you initiate a wire or an ACH transfer through Commercial Center and at the approval step.

Please download the Commercial Center app from the Apple App Store or Google Play Store. Look for the app with a gray background, gold icon, and the words “Commercial Center.” You will need a software activation key to access mobile banking the first time you enroll. Company administrators will have access to the activation key via Commercial Center.

12 months of transaction history and statements will automatically transition. Please download any additional history you wish to retain before Friday, March 20 at 5:00pm (PT).

If you use business online bill pay services, all your payee information will transfer over to the new Online Banking Plus platform. Once you have access to your account on Monday, March 23, 2026, we recommend checking your account and bill pay/transfer information to verify it has transferred accurately. Some transferred information may be organized differently on the new platform than in your current bill pay/transfer system. Please allow time to organize your information into your preferred format.  

Yes. However, there will be a slight delay. The data needed to run these reports will be available on Tuesday, March 24, 2026.

The former HomeStreet routing number will continue to work, however, on or after March 23, please be sure to notify the senders of the specific Mechanic's Bank routing and transit number, which is 121102036.

Please begin updating the SWIFT code from HOMSUS6S over to MEBKUS66.

Your new Commercial Center password/PIN, established the first time you log into the system, will be required when you initiate a wire and at the approval step. The same is true for ACH transfers.

No. Please be sure to download any history you wish to retain before Friday, March 20 at 5:00pm (PT).

Yes. However, bill pay via Direct Connect will no longer be available. History will not be captured. Be sure to download any Direct Connect or Web Connect history you wish to retain before this Friday, March 20 at 5:00pm (PT). Learn more here

Friday, March 20 before 5:00pm (PT): Review the transaction presentments on your account. If there are items you would like paid or returned in the Positive Pay system on Saturday, March 21, notify the bank by contacting Commercial Depository Services (CDS) or calling your banker. If you don't contact us, we will follow the default pay/return rules established for your account over transition weekend.

Please note user access for Positive Pay is changing slightly. If a user has "maintenance" access to an account(s) AND "view-only" access to another account, the "view-only" account will not be added. In this scenario, the user will need to request "maintenance" access to the "view-only" account to see it in the Positive Pay systems. The system only allows users to choose "maintenance" OR "view-only" access. A combination of both is not allowed. (A combination of both is allowed at the user level).

After your initial log-in to Commercial Center, please check the Positive Pay permission settings as the entitlements have likely changed due to system access differences between Commercial Center and HomeStreet's Business Online Banking service.

Access to Positive Pay via the mobile apps will no longer be available.

After March 23, 2026: The Positive Pay exception review deadline will be 12:00pm (PT).

Your Positive Pay services will largely remain the same within Commercial Center beyond what is listed above with your history, templates, and file definitions automatically transitioning.

Yes. Former HomeStreet customers using ACH Block Service will be transitioned to ACH Positive Pay in Commercial Center. Transactions will post as an exception.

The notifications are changing. Users will be notified if a deposit is rejected, not when one is accepted or adjusted.

Any sweeps or automatic transfers established between accounts will transfer over. Please verify this on Monday, March 23, 2026 to ensure there are no interruptions.

Your account history will be accessible via your former HomeStreet IntraFi Depositor Control Panel (DCP) portal via www.depositorcontrol.com/login. Current and future ICS and/or CDAR accounts will be transitioned to the Mechanics Bank IntraFi DCP portal.

If you have access to your loan via the Commercial Real Estate link from the www.homestreet.com website, you will be able to access this from the Commercial Real Estate link in the online banking section of the mechanicsbank.com website beginning Monday, March 23, 2026.

Yes. Autobooks will no longer be available. Bill pay, ACH and wire services will no longer be available from business savings accounts. Mobile access to Positive Pay is also being discontinued.

Please talk to your local banker, branch office, or call Treasury Operations at 800.272.1876.