Skip to main content

603 Checking Account

Simplify your finances and help a NH charity with one checking account.

Our 603 Checking Account lets you manage everyday spending with ease.

  • Get paid up to two days earlier with direct deposit1
  • Enjoy discounted loan rates with automatic payment2
  • Fee-free access to 30,000+ CO-OP® and SUM® ATMs 
  • No minimum daily balance requirement
  • No monthly service fee with eStatements3
  • Remote check deposit, pay bills, view check images, free credit score, and more with mobile banking

Giving Back is Easier Than Ever

Every time you make a purchase with your 603 Account debit card, St. Mary's Bank will donate $0.0603 to a New Hampshire non-profit of your choice.

Here’s how it works:

  1. Open your account and select a charity category. Categories include:
    • Animals
    • Children and Families
    • Environment
    • Food and Shelter
  2. Use your debit card for purchases.
  3. St. Mary’s Bank automatically donates $0.0603 per debit card purchase to your selected charity.

It’s that simple!
You may designate a different charity each year.

Already a member?
Open a new 603 Account or convert an existing St. Mary's Bank checking account.

If you have an existing checking account and would like to convert to the 603 Account, simply call the Member Contact Center at (888) 786-2791, or visit any branch.

Children & Families

Court Appointed Special Advocates (CASA) of New Hampshire is a nonprofit that recruits, trains, and supports community volunteers to serve as advocates for children throughout the state who have experienced abuse or neglect. Since CASA was founded in 1989, they have given 10,000+ New Hampshire children a voice in District and Family courts and a chance at a brighter future.

Select the Children & Families category to help CASA reach the $5,000 maximum donation.

Expand Close


The NHSPCA mission is to save the lives of companion animals through rescue, rehabilitation, and adoption; to promote learning, eliminate animal cruelty and be a leader in advancing the highest standards of animal welfare.

Select the ANIMALS category to help the NHSPCA reach the $5,000 maximum donation.

Expand Close


The Society for the Protection of New Hampshire Forests (Forest Society) is a nationally accredited nonprofit land conservation organization, founded in 1901 to protect New Hampshire’s most important landscapes and promote the careful use of its renewable natural resources. The Forest Society conserves land integral to the quality of life in communities, including working forests that support the economy and purify our air and water; diverse habitat that supports native and transitory wildlife; and prime agricultural soils that grow our food. The Forest Society conducts ongoing programs in land protection, reservation stewardship, education, advocacy, and sustainable forestry.

Select the ENVIRONMENT category to help the Forest Society reach the $5,000 maximum donation.

Expand Close

Food & Shelter

The New Hampshire Food Bank serves as the only food bank in the state, working to provide nutritious food and resources to the hundreds of thousands of New Hampshire residents that are food insecure. The Food Bank supplies millions of pounds of food annually to more than 400 partner agencies, including food pantries, homeless shelters, soup kitchens, children’s programs, senior centers and more. In turn, these agencies provide hunger relief to those suffering from food insecurity throughout the state.

Select the FOOD & SHELTER category to help the NH Food Bank reach the $5,000 maximum donation.

Expand Close

Open a 603 Account

For existing members, please log in to Online Banking to open.
Already have a checking account?
Call the Member Contact Center at (888) 786-2791 or visit any branch.

Pair with a Rainy Day Savings

  • Build an emergency savings cushion
  • Enjoy one free withdrawal each month
  • Minimum monthly automatic deposit of just $25
  • Achieve savings goals faster with high-yield interest rates


1. Early Pay: If we receive notice from an employer or government agency that your funds are ready, we may post your direct deposit earlier than your “official” scheduled payment day. Subject to originator payroll/funds process and timing. St. Mary’s Bank will not assume liability for not depositing funds to your account early.

2. Loan Rate Discount: available on select loans with automatic funds transfer from a St. Mary’s Bank checking account.

3. 603 Account: St. Mary’s Bank will donate $0.0603 to a non-profit per debit card purchase transaction. Maximum donation for each category is established each year and posted online at The primary account owner will select the non-profit/category at time of account opening and may change it once per year. Donations will be made to the designated non-profit in the selected category in place at the time of payout. Beneficiary organizations are designated at the sole discretion of St. Mary’s Bank and posted online at Donations are made by St. Mary’s Bank and not considered to be charitable donations by the account owners. $10 minimum balance required to open account. Avoid $2 monthly paper statement fee by enrolling in free eStatements.