A primary share account is not a savings account — it is a membership account that gives you ownership in a credit union
When you open a primary share account at a credit union, you are buying a small piece of ownership in that institution. The money you put in is called your "share," and it makes you a member-owner rather than just a customer. A savings account at a bank, by contrast, is a deposit account where the bank holds your money and pays you interest.
The confusion happens because primary share accounts work similarly to savings accounts in some ways — you deposit money, it earns a small return, and you can withdraw it. But the legal structure is different. A bank savings account is a contract between you and the bank. A primary share account is a membership stake in a cooperative financial institution.
Most credit unions require you to open a primary share account before you can use any other service — checking, loans, or other savings products. It is usually the first account you set up, and you must keep at least a small balance in it (often $5 to $25) for as long as you are a member.
Key Takeaways
- A primary share account makes you a member-owner of the credit union, while a savings account at a bank makes you a depositor with no ownership stake.
- Most credit unions require a primary share account before you can open any other account or borrow money.
- You must maintain a minimum balance in your primary share account, typically between $5 and $25, to stay a member.
- The interest rate on a primary share account is usually lower than on a dedicated savings account, because the primary share's purpose is membership, not savings growth.
- If you close your primary share account, you lose your membership and cannot use any other services at that credit union.
How a primary share account differs from a dedicated savings account
A dedicated savings account at a credit union is a separate product designed specifically for saving money. It typically earns a higher interest rate than a primary share account because its only purpose is to hold and grow your deposits. You can have multiple savings accounts at the same credit union, and closing one does not affect your membership.
The primary share account, by contrast, is the foundation of your membership. You cannot close it without leaving the credit union entirely. The interest rate is usually modest — sometimes less than 0.5% annually — because the account's real purpose is to establish your ownership stake, not to be your main savings tool.
If you are looking to save money and earn interest, you would typically use a dedicated savings account or a money market account at the credit union. The primary share account sits in the background, maintaining your membership status.
Why credit unions require a primary share account
Credit unions are member-owned cooperatives, not corporations. They are run by and for their members, and profits are returned to members through better rates and lower fees. The primary share account is how the credit union documents that you are a member-owner.
This structure also protects the credit union. By requiring members to maintain a small ownership stake, the institution ensures that members have some financial commitment to the credit union's success. It also simplifies record-keeping — the credit union knows exactly who its members are and can contact them if needed.
From a practical standpoint, the primary share account is usually inexpensive to maintain. Most credit unions charge no monthly fee and require only a small minimum balance. Some even waive the minimum if you set up direct deposit or maintain other accounts.
What happens to your primary share account when you close it
If you decide to leave a credit union, you close your primary share account and withdraw your balance. The credit union will send you a check or transfer the money to another account. Once that account is closed, you are no longer a member and cannot use any services at that credit union — no checking, no loans, no access to other accounts.
If you have other accounts at the same credit union (a savings account, a checking account, a loan), closing your primary share account does not automatically close those. However, you will no longer be a member, so the credit union may require you to close the other accounts as well. Check with your specific credit union about their policy.
Some people keep a primary share account open at a credit union even if they do not use it regularly, straightforward to maintain membership and access to services. The balance requirement is usually so small that it costs almost nothing.
The interest rate on a primary share account
Credit unions set their own interest rates on primary share accounts, so the rate varies by institution. Some credit unions pay no interest at all, while others pay a small amount — typically between 0.01% and 0.5% annually. A few credit unions with strong financial positions may pay slightly more, but primary share accounts are never meant to be high-yield savings tools.
The rate also does not change based on how much you deposit. Whether you keep the $5 minimum or deposit $500, the interest rate stays the same. This is different from some savings accounts, which offer higher rates on larger balances.
If you want to earn meaningful interest on your savings, ask your credit union about dedicated savings accounts, money market accounts, or certificates of deposit (CDs). These products are designed for growth and typically pay higher rates than a primary share account.
How to open a primary share account
To open a primary share account, you first need to be may be able to access for membership at a specific credit union. may be able to access varies — some credit unions serve people who work for a particular employer, live in a certain area, or belong to a specific organization. You can search for credit unions in your area using the CO-OP network locator or by visiting credit union websites directly.
Once you find a credit union where you are may be able to access, you will need to bring identification (a driver's license or passport) and proof of address (a utility bill, lease, or bank statement). You may also need a Social Security number or Individual Taxpayer Identification Number (ITIN). The credit union will walk you through the membership process and open your primary share account on the spot.
The minimum deposit to open a primary share account is usually small — often $5 to $25. Some credit unions waive this if you set up direct deposit. The whole process typically takes 15 to 30 minutes in person, or longer if you explore online.
Primary share accounts and NCUA insurance
Money in a primary share account is protected by the National Credit Union Administration (NCUA), a federal agency that insures credit union deposits. Your primary share account is covered up to $250,000, just like a savings account at a bank is covered by the Federal Deposit Insurance Corporation (FDIC).
This protection applies whether your primary share account earns interest or not. If the credit union fails, the NCUA will return your money up to the $250,000 limit. In practice, this limit is high enough that most individual members never need to worry about it.
If you have multiple accounts at the same credit union — a primary share account, a savings account, and a checking account — they are each covered separately up to $250,000. So your total coverage could be much higher if you spread your money across different account types.
Frequently Asked Questions
Can I use my primary share account like a regular savings account?
You can deposit and withdraw money from a primary share account, but it is not designed for regular saving. The interest rate is too low to make it worthwhile as your main savings tool. Use it to maintain membership, and open a dedicated savings account if you want to save money and earn a better return.
What is the minimum balance I need to keep in a primary share account?
Most credit unions require between $5 and $25, though some have no minimum at all. Check with your specific credit union. If your balance drops below the minimum, the credit union may charge a fee or close the account, which would end your membership.
Do I have to keep money in a primary share account if I am not using the credit union?
You must keep the account open and maintain the minimum balance to stay a member. If you do not plan to use the credit union, you can close the account and withdraw your money. Once you do, you are no longer a member and cannot reopen it without reapplying for membership.
Can I have more than one primary share account?
No. You can have only one primary share account per credit union, and it must be open to maintain membership. You can have multiple other accounts — savings, checking, money market — but only one primary share account.
What happens to my primary share account if I move to a different state?
If you move and are no longer may be able to access for membership (for example, if the credit union only serves people in your old state), you will need to close your account. If you move to a state where the credit union still serves you, your account stays open and your membership continues.