Credit Union Or Big Bank? Key Differences Explained

Joneboi and Harrison Keely/Wikimedia Commons

ScoreCard Research

Choosing where to keep your money involves more than just convenience. Credit unions and big banks follow different models that influence everything from fees to customer service. While both offer similar core services, how they operate and what they prioritize can lead to very different experiences for account holders. Here’s a closer look at their different approaches across key areas.

Free Checking Accounts Are More Common At Credit Unions

Elaine F./Yelp

Roughly 80% of credit unions provide checking accounts with no monthly fees. Only about 40% of national banks do the same. Many also eliminate minimum balance requirements and offer bill pay at no extra cost, benefits often restricted or conditional at traditional financial institutions.
More From The Penny Hoarder: Here’s How to Make Money From Home

Big Banks Charge Higher Overdraft Fees

Stevepb/Pixabay

An average overdraft charge of $35 is standard across large banks. In contrast, credit unions often cap this at $25 and sometimes offer grace periods. Before the 2022 reforms, overdraft fees generated over $7 billion yearly. This might be burdensome for many account holders during unexpected financial shortfalls.
Make money easier. Sign up for The Penny Hoarder’s newsletter today.

Credit Unions Offer Better Auto Loan Rates

Raten-Kauf/Pixabay

In 2024, auto loan rates averaged 6.03% at credit unions, compared to 7.53% at major banks, as per the National Credit Union Administration. Many credit unions also waive application fees, and flexible perks like skip-a-payment options can save members hundreds over the life of a five-year loan.
More From The Penny Hoarder: Need Money Immediately? 6 Ways To Find Fast Cash

ATM Access Is Wider With Big Banks

Masrur Odinaev/Wikimedia Commons

With over 15,000 ATMs per brand, banks like Chase and Bank of America ensure wide access. Credit unions use shared networks like CO-OP to offer 30,000 machines, but out-of-network usage may incur charges. Premium bank accounts often include full ATM fee reimbursements worldwide.
More From The Penny Hoarder: 100+ Places That Will Give You Free Stuff on Your Birthday

Credit Unions Often Pay Higher Savings Interest Rates

olia danilevich/Pexels

A typical credit union savings account pays between 0.25% and 0.50% annually. Meanwhile, many large banks hover around 0.01%–0.10%. Certificates of Deposit often yield even more. Some credit unions reward loyalty with rate boosts tied to long-term membership or account bundles.

More From The Penny Hoarder: Ditch Overpriced Car Insurance Now — Save $500 Today

Big Banks Offer More Credit Card Rewards

RDNE Stock Project/Pexels

Chase, Amex, and others lead with travel points, cashback and more. Credit unions offer fewer credit card options, often focused on low APR  rather than perks. For frequent travelers or large spenders, bank-issued cards generally deliver stronger rewards and global usability.
More From The Penny Hoarder: Everything You Need To Know About Debt

Credit Unions Have Lower Mortgage Origination Fees

RDNE Stock project/Pexels

Homebuyers can save significantly on mortgage origination fees, often 0.5–1% lower, through credit unions. Waived application or processing fees are common. Flexible down payment requirements and smaller closing costs also help members access homeownership without the financial strain.
More From The Penny Hoarder: How to Pay off Credit Card Debt in 2025

Mobile App Features Are More Strong At Big Banks

Torsten Dettlaff/Wikimedia Commons

Leading bank apps offer integrated budgeting tools, AI support, fraud alerts and Zelle transfers. Credit union apps vary widely in capability, sometimes lacking key features. Usability scores consistently rank Chase, Wells Fargo and BofA above most credit union platforms.
More From The Penny Hoarder: How To Budget: Create A Household Budget in 4 Simple Steps

Credit Unions Reinvest Profits In Member Benefits

Nattanan23/Pixabay

Credit unions operate as not-for-profit institutions, redistributing surplus income to members. This can mean lower loan rates, occasional dividend payouts or community-based financial support. Some even offer year-end interest rebates tied to usage levels, which is a stark contrast to shareholder-driven banks.
More From The Penny Hoarder: Our Picks for The Best Checking Accounts for This Month

Big Banks Charge More For Wire Transfers

RDNE Stock project/Pexels

Major banks often charge $25–$50 for each wire transfer, making frequent transactions expensive. Credit unions, on the other hand, typically charge much less—or even waive the fee for loyal members—treating it as a benefit rather than another profit source. The savings quickly add up.
More From The Penny Hoarder: The Best Rewards Credit Cards to Maximize Your Spending in 2025

Credit Unions Aren’t Taxed Like Big Banks

Photo By: Kaboompics.com/Pexels

Unlike banks, federal credit unions do not pay corporate income tax. This structural advantage enables them to return more value through reduced loan interest and community investments. Banks, by contrast, pass tax obligations into pricing and profit strategies.
More From The Penny Hoarder: The 6 Best No Annual Fee Credit Cards of 2025

Big Banks Invest More In Fraud Protection Technology

geralt/Pixabay

Larger financial institutions invest billions each year into fraud detection and digital security. Features like biometric login, AI monitoring and real-time alerts come standard. While credit unions are improving in this area, many lack the same scale or resources for equivalent protection.
More From The Penny Hoarder: How to Choose a Credit Card That is Right For You

Credit Union Membership Grows Faster During Economic Downturns

Geralt/Pixabay

During major downturns like 2008 and 2020, Americans increasingly turned to credit unions. Their lower fees and stable lending terms made them a preferred alternative. Community reputation and trust played key roles in these shifts during financially uncertain periods.
More From The Penny Hoarder: Here’s How to Get Cheap Auto Insurance Without Cutting Coverage

Big Banks Offer More Global Financial Services

Audy of Course/Pexels

For travelers and expatriates, big banks provide essential services like currency exchange, foreign ATM access and international wire transfers. Credit unions generally lack this global infrastructure or rely on external partners. Mobile access abroad also tends to be smoother with national providers.
More From The Penny Hoarder: How to Invest with AI: Tools and Tips for 2025

Credit Unions Often Provide Personalized Financial Counseling

Kindel Media/Pexels

Many credit unions give personalized counseling on budgeting, credit repair and financial planning—mostly free of charge. Members benefit from tailored advice and youth savings initiatives. Large banks, by comparison, often automate or outsource these services to third-party providers.
More From The Penny Hoarder: The Top 0% Interest APR Credit Cards in 2025