Credit union vs. bank: Which one fits how you save and borrow?

For borrowing, a credit union is usually the better first stop. In the NCUA’s comparison of national averages for the last quarter of 2025, the average credit union rate was lower than the average bank rate on every loan type it tracks, from new car loans to credit cards, and federal credit unions cannot charge more than 18% on most loans. For saving, it depends on the product: credit unions paid more on CDs and money market accounts but slightly less on regular savings, and online banks competing for deposits can beat both. A large bank wins when you need branches and ATMs in many states. Your deposits are insured up to $250,000 at either.

What ownership changes

A bank is a for-profit company owned by shareholders, chartered either by the Office of the Comptroller of the Currency or by a state. A credit union is a not-for-profit cooperative owned by its members, who elect its board on a one-member, one-vote basis. Federal credit unions are chartered by the NCUA under the Federal Credit Union Act of 1934; the rest are chartered by states. Credit unions do not pay federal income tax, and without outside shareholders to pay, their earnings can go back to members as lower loan rates, higher deposit rates or lower fees.

That is the theory. In practice the difference shows up most clearly on loans and is smaller on deposits, and a very large credit union can feel a lot like a bank. Treat ownership as a reason to get a quote, not as a guarantee of a better deal.

Insurance: the same limit, with one exception

Bank deposits are insured by the FDIC. Deposits at federally insured credit unions are insured by the NCUA through the National Credit Union Share Insurance Fund. Both cover $250,000 per depositor, per institution, per ownership category, and both are backed by the full faith and credit of the United States. Our guide to FDIC insurance limits shows how the categories add up.

The exception: a small number of state-chartered credit unions carry private share insurance instead, which has no federal backing. A 2017 GAO report counted 125 of them, about 2% of credit unions, all insured by one company, American Share Insurance. Federal law requires them to disclose that they are not federally insured, so look for that notice or check the credit union in the NCUA’s Credit Union Locator. One timing detail for trust accounts: the NCUA’s version of the FDIC’s 2024 trust rule, with its five-beneficiary cap, takes effect on December 1, 2026.

Loans: where credit unions usually win

The clearest structural advantage is a legal ceiling. The Federal Credit Union Act caps rates at federal credit unions at 15%, and the NCUA board has kept a temporary 18% ceiling in place since 1987, most recently extending it through September 10, 2027. It covers most loans, credit cards included. State-chartered credit unions follow state law instead. Compare that ceiling with the average APR on all credit card accounts at commercial banks, from the Federal Reserve:

For small emergencies, federal credit unions can offer payday alternative loans (PALs), which are allowed above the 18% ceiling: an APR of no more than 28%, an application fee of no more than $20, and either $200 to $1,000 over one to six months (PAL I) or up to $2,000 over one to twelve months (PAL II). Our list of payday loan alternatives compares them with other options.

On car loans, the gap is easy to price. Say a credit union quotes 6% and a bank quotes 7% on a $25,000 new car loan over 60 months. The payments are $483.32 and $495.03 a month, so the credit union saves $11.71 a month and about $703 in interest over the loan ($3,999 against $4,702). Averages hide a lot of variation between lenders, so the useful move is to get a written quote from a credit union before you sit down at the dealership and let the dealer try to beat it.

Savings and convenience: where banks can win

On deposits, the NCUA’s comparison is mixed. In its December 2025 data, the average credit union paid more than the average bank on every CD term and on money market accounts, but less on regular savings and interest checking. Both averages include large institutions that pay very little; the highest savings rates tend to come from online banks that compete for deposits, explained in our guide to high-yield savings. Nothing stops you from borrowing at a credit union and saving at an online bank.

Scale is the other bank advantage. The largest banks run branches and proprietary ATMs across much of the country, and they spend heavily on their apps. Credit unions answer with shared networks: many belong to shared branching and surcharge-free ATM networks such as CO-OP, which let you use other credit unions’ locations, but coverage varies by region. If you move often or travel for work, check the networks before you join. Fees on checking accounts tend to be low at both credit unions and online banks; our guide to checking accounts with no monthly fee lists what to compare.

Who can join a credit union

Banks are open to anyone who passes their account screening. Credit unions can accept only people within their field of membership, defined by a common bond: an employer or occupation, a community where you live, work, worship or attend school, or membership in an association. The Credit Union Membership Access Act of 1998 confirmed that credit unions can serve several such groups, and many now have broad community charters or let you qualify by joining a partner organization. Family members of current members are often eligible too. Under the federal credit union bylaws, once you join you remain a member even if you later change jobs or move (“once a member, always a member”).

Joining means opening a savings (share) account, usually with a small deposit, and banks and credit unions alike commonly screen applicants with reports such as ChexSystems. If a past account ended badly, our guide to a second chance bank account covers both kinds of institution.

How to decide

• You are about to finance a car, take a personal loan or open your first card: get a credit union quote first, and compare it with at least one bank or online lender.
• You need a few hundred dollars fast: ask a federal credit union about a PAL before considering a payday loan.
• You want the most interest on cash: compare credit union CDs and money market accounts with online bank savings, not with big-bank averages.
• You need in-person service in several states: a large bank, or a credit union whose shared network covers where you live and travel.