Treasury Management and Treasury Online Services

Your Treasury Management services will soon transition to M&T, and M&T Bank Treasury Center® will replace People's United Business Online eTreasury+. Get the latest updates to help you prepare.

Treasury Management
Services Guide

Download a guide to Treasury Management services to learn how to use them, how to access them and how to be prepared on day one following transition weekend.

Use M&T Mobile and Online for Business for other online services

Bill Pay, Mobile Check Deposit and business credit cards can be accessed using M&T Mobile and Online Banking for Business. Please visit the Mobile and Online Resource Center to learn more.

Important dates and actions as your services transition from People's United eTreasury+ to Treasury Center


Continue to use People’s United Business Online eTreasury+ for your day-to-day banking and retain your eTreasury+ tokens, up until the close of business at 5pm ET on Friday, September 2, 2022.


  • Watch for an email from M&T with your Preview Mode date and instructions for how to log into Treasury Center
Please note:

  • Any changes you make to users and/or transaction templates in eTreasury+ during Preview Mode will also need to be made in Treasury Center
  • Preview Mode will not be available for M&T Mobile and Online Banking for Business.


  • Log into Treasury Center to verify User ID, password or token
  • Personalize workspaces and set up preferred views
  • Verify that all users, their services and account permissions have been successfully moved to Treasury Center
  • Download the Treasury Center mobile app from the App Store® or Google Play

Please note: Preview Mode will not be available for M&T Mobile and Online Banking for Business.


Transition weekend. People's United branches close early.  Please check posted signs at your branch


People's United Business Online Banking eTreasury+ will no longer be available after 5pm ET.


Branches reopen. Begin using M&T Online Banking for Business and M&T Bank Treasury Center®.

Guidance every step of the way

Helpful resources, tools and support

Watch for emails with instructions and links for:


M&T's online learning resources

Access Treasury Center how-to videos, user guides, training videos and more at our online Learning Center

Watch for these additional communications


  • A series of emails to help prepare for your transition to Treasury Center. Please save all emails that come from the sender “M&T Treasury Management”
  • Two separate emails from M&T Bank Treasury Center, one will confirm your User ID and the other will provide your temporary password
  • Instructions for existing mobile token users on how to download our mobile token, which will be used at login
  • Information for users of Escrow, Direct Connect, Remote Check Deposit, Positive Pay and ACH

Additional email instructions for users of:

  • BAI Codes
  • Direct Connect
  • Escrow
  • Foreign Currency Accounts
  • Integrated Payables
  • Positive Pay
  • Remote Check Deposit


  • For existing physical token users, your new physical tokens will be mailed to you at the address on file for your eTreasury+ billing account. Tokens will be supplied only for users that have logged on in the past 12 months
  • Escrow accounts and services information
  • Check Image Service information, including encryption key
  • Controlled Disbursement new account number(s) will be mailed to you 

We're here to help

  • Call our Treasury Management Service Team at 1-800-724-2240, Monday–Friday, 8am–6pm ET. Select option #3 and have your Treasury Center User ID and account number ready
  • Contact your Treasury Management Sales Consultant or your Relationship Manager
  • Visit our Treasury Center Online Learning Center
On April 2, 2022, People’s United Bank, N.A. merged into M&T Bank. It is now part of M&T Bank and its former branches and most services will operate as the People’s United division of M&T Bank until we complete the integration of our systems later in 2022.
Unless otherwise specified, all advertised offers and terms and conditions of accounts and services are subject to change at any time without notice. After an account is opened or service begins, it is subject to its features, conditions and terms, which are subject to change at any time in accordance with applicable laws and agreements. Please contact an M&T representative for details.
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