While we are pleased to provide partial access to some branch lobbies, please know that online and mobile banking, drive-up and telephone are still the best ways for you to work with Greylock, now and for the foreseeable future. These great services not only provide improved convenience, they also provide enhanced safety for you and our staff.

We are available 24/7 at (413) 236-4000

For Updated Branch Hours CLICK HERE

For Member Updates CLICK HERE

For Business Member Updates CLICK HERE

Mobile Banking

mobile tablet and mobile phone with greylock mobile banking app

available on the app store button

available on the google play store button

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To use the Greylock Federal Credit Union Mobile Banking App, you must be a Greylock Online Banking user.

FEATURES Balance Inquiry, Account Transaction History, Transfer to your Deposit Accounts, Cross-account transfers (to another account you jointly own), Transfer funds between accounts you own at other financial institutions and your Greylock accounts with External Account Transers, Transfer funds to another person with Popmoney, Deposit a check with Remote Deposit Capture

SECURITY Set up security questions to verify your identity, Secure login with User ID and Password, No transmission of complete account numbers

Mobile Deposit | Deposit your check using our mobile banking app

Use the Greylock mobile app to easily take a photo of both sides of your endorsed check and submit the photos as your deposit. Mobile Deposit is available to Greylock members who have a personal checking or savings account and use our mobile banking app— either for iPhone or Android.

  1. Endorse your check with "For Mobile Deposit Only".
  2. Log in to the Greylock Mobile Banking app and click "DEPOSIT" and then click "DEPOSIT A CHECK".
  3. Choose the account where you want your deposit to go and enter the amount.
  4. Take a photo of the front and back of the check, making sure it's a good image of the full check.
  5. Click "NEXT" to review and then click "MAKE DEPOSIT" if it's correct.

Funds are available within 2 business days. Keep your paper check until the funds are posted to your account.

We may establish limits on the dollar amount and/or number of items or deposits from time to time. If you attempt to initiate a deposit in excess of these limits, we may reject your deposit. The current daily dollar limit per business day and per deposit limit is $5,000.00. View full Mobiliti Appendage here.

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Eliminate the hassle of checks and cash with Popmoney! Send and receive money as easily as you would receive email and text messages. You don't need a separate account, just use your current Greylock Checking or Savings account.


  • Send money using the recipient's name and email address, mobile number or checking/savings account information. You will be notified when the transaction is completed.
  • If you're receiving money, you will receive an email or text message telling you someone sent you money. Just log in to your financial institution's online banking site and direct the funds to your bank account.

Manage My Cards | Strong protection for your Greylock Debit Card

Use Card Controls to safeguard your card from fraud, control family spending, block international transactions, and restrict certain merchants!

Take control of your Greylock Debit Card right from your mobile app. Simply select "Manage My Cards" from the "Accounts" tab or "More" tab. From there, you can:

  • Review the statuses of each of your cards
  • Turn your cards off and on
  • Set transaction limits
  • Set location limits
  • Set merchant limits

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