A credit union is a member-owned financial cooperative: every depositor holds an ownership stake, and any money the institution earns above its operating costs flows back to members as lower loan rates, higher savings yields, and smaller fees. That cooperative structure is the core of how credit unions work. Federal law limits each one to serving a defined group of people who share a workplace, community, or association, and deposits at federally insured credit unions are protected up to $250,000 by the National Credit Union Share Insurance Fund, backed by the full faith and credit of the United States government.1National Credit Union Administration. Share Insurance Coverage
Who Can Join
Every credit union operates under a charter that defines its “field of membership.” Federal law recognizes three categories.2Office of the Law Revision Counsel. 12 USC 1759 – Membership
- A single common bond, where everyone shares one employer or one association such as a labor union or church congregation.
- A multiple common bond, where several distinct occupational or associational groups are combined under one charter; each added group generally must have fewer than 3,000 members.
- A community charter, open to anyone who lives, works, worships, or attends school within a defined geographic area such as a city, county, or rural district.
Community charters have made credit unions far more accessible than they were decades ago. If you live in a mid-sized metro area, there is a good chance a community-chartered credit union already covers your zip code.
Family eligibility extends the reach further. If someone in your immediate family falls within a credit union’s field of membership, you can typically join even if you don’t personally meet the common bond. That family member doesn’t even need to be a member themselves; they just need to be eligible.3National Credit Union Administration. Membership Eligibility of Immediate Family Members If that person later moves outside the field of membership without ever having joined, the eligibility for their relatives typically ends.
Once You Join, You Stay a Member
Under the standard federal credit union bylaws, once you join, you remain a member even if you leave the employer or move away from the community that made you eligible.4National Credit Union Administration. Federal Credit Union Bylaws Your membership continues until you voluntarily withdraw or are expelled for cause. A credit union you join through a first job out of college can serve you for life.
What You Get as a Member-Owner
Joining requires subscribing to at least one share of the institution, which usually means a small initial deposit. The board of directors sets the par value of that share, and at most credit unions it falls somewhere between $5 and $25.5National Credit Union Administration. Membership Rights and Par Value of Shares That deposit isn’t a fee you lose. It’s your ownership stake, and it stays in your account.
This is the fundamental difference between a credit union and a bank. At a commercial bank, shareholders and customers are two separate groups with sometimes competing interests: shareholders want higher profits, customers want lower fees. At a credit union those groups are the same people, so when the institution does well financially, the people who use the services are the ones who benefit.
How Members Benefit Financially
Credit unions carry a not-for-profit designation, which confuses some people into thinking they operate like charities. They don’t. A credit union runs as a business that covers salaries, rent, technology, and regulatory costs. The difference is what happens to the money left over: instead of distributing profits to outside investors, a credit union returns surplus revenue to its members.
That return takes several forms. The most visible is pricing. NCUA data from the second quarter of 2025 puts the gap on auto loans at roughly 1.7 to 2.0 percentage points. A 48-month used car loan averaged 5.82% at credit unions versus 7.79% at banks, and a 60-month new car loan averaged 5.75% versus 7.49%.6National Credit Union Administration. Credit Union and Bank Rates 2025 Q2 On a $30,000 car loan, that kind of spread saves hundreds of dollars over the life of the loan.
The savings show up in fees too. Many credit unions waive monthly maintenance charges entirely and keep penalty fees well below the industry average. A CFPB report found that most smaller banks and credit unions cap credit card late fees at $25 or less, while nearly all of the largest card issuers charge at or near the regulatory safe harbor of $40.7Consumer Financial Protection Bureau. Credit Card Late Fees
There’s also a hard ceiling on what a federal credit union can charge for loans. The Federal Credit Union Act generally caps the rate at 15%, though the NCUA Board has maintained a temporary ceiling of 18% for decades, and as of early 2026 that 18% ceiling remains in effect.8National Credit Union Administration. Permissible Loan Interest Rate Ceiling Extended The cap applies across all loan products and is lower than what many bank-issued credit cards charge.
Why the Pricing Works
A key reason credit unions can offer better pricing is their tax treatment. Under federal law, credit unions are exempt from federal, state, and local income taxes on their operations, a significantly broader exemption than many people realize. The only exception is that real property and tangible personal property, meaning buildings and equipment, get taxed the same as any other business.9Office of the Law Revision Counsel. 12 USC 1768 – Taxation That exemption frees up revenue that would otherwise go to tax obligations, and in a well-run credit union most of that money flows into better rates and services.
A Payday Loan Alternative
Credit unions also offer a product called a Payday Alternative Loan, designed to give members a way out of the predatory payday lending cycle. The NCUA caps the interest rate on these small-dollar loans at 28%, calculated as the 18% general ceiling plus 1,000 basis points.10National Credit Union Administration. Federal Credit Union Loan Interest Rate Ceiling That is steep compared to a regular personal loan, but it’s a fraction of the 400% or more that payday lenders routinely charge.
How Decisions Get Made
Credit unions follow a democratic governance model where every member gets exactly one vote regardless of how much money they have on deposit. Someone with a $500 savings account has the same say as someone with $200,000. Members exercise this power by electing a board of directors at the annual meeting.
The board sets strategic direction, approves major policies, and hires the professional management team that runs daily operations. Federal law provides that only one board officer may receive compensation; the rest serve as unpaid volunteers.11Office of the Law Revision Counsel. 12 USC 1761a – Officers of the Board This volunteer structure keeps overhead low and reinforces the cooperative character of the institution, though it also means board talent can vary widely from one credit union to another.
Federal, State, and Insured
Credit unions can be chartered at either the federal or state level. Federally chartered credit unions are regulated and examined by the NCUA.12National Credit Union Administration. About NCUA State-chartered credit unions answer to their state’s financial regulator, though the vast majority also carry federal deposit insurance through the NCUSIF.
A small number of state-chartered credit unions use private insurance instead of federal coverage. Private insurers are not backed by the full faith and credit of the United States, so those deposits don’t carry the same federal guarantee. Credit unions that use private insurance are required to disclose that fact prominently in account statements, on signature cards, in advertising, and at every location where deposits are accepted; new and existing depositors must sign a written acknowledgment that the institution is not federally insured.13Federal Register. Disclosures for Non-Federally Insured Depository Institutions If you are unsure about your credit union’s insurance status, the NCUA’s Credit Union Locator tool confirms whether an institution is federally insured.
Your Money’s Safety
The National Credit Union Share Insurance Fund provides coverage up to $250,000 per individual depositor at federally insured credit unions. Joint accounts are separately insured up to $250,000 per co-owner, and IRA and Keogh retirement accounts get their own $250,000 of coverage on top of that.1National Credit Union Administration. Share Insurance Coverage A married couple with individual accounts, a joint account, and IRAs at the same credit union could carry well over $1 million in total coverage.
If a credit union runs into serious trouble, the NCUA can place it into conservatorship, keeping the doors open while problems are resolved, or proceed to liquidation if the institution can’t be saved. When possible, the NCUA arranges for another credit union to assume the failed institution’s members and accounts so members continue banking with minimal disruption. If no acquiring credit union steps in, insured deposits are typically paid out within five days of closure, and no member of a federally insured credit union has ever lost money in an insured account.14National Credit Union Administration. Credit Union Conservatorship and Liquidation
Access and Convenience
The traditional knock against credit unions has been fewer branches and ATMs than the large national banks. Shared branching networks largely solve this. The CO-OP Shared Branch network connects more than 5,000 locations across the country, allowing members of any participating credit union to walk into another participating credit union and conduct transactions as if it were their home branch. You can make deposits, withdrawals, transfers, and balance inquiries with your credit union’s name, your account number, and a government ID.
Combined with surcharge-free ATM networks and mobile banking apps, the access gap between credit unions and large banks has narrowed considerably. If you travel internationally or need specialized commercial banking services, however, a large bank may still offer broader infrastructure.
Taxes on What You Earn
The credit union itself doesn’t pay income taxes, but you still do on what you earn there. Interest and dividends paid on your share accounts are taxable income. Credit unions report these earnings to the IRS on Form 1099-INT for any member who earns $10 or more in a calendar year, the same way a bank reports savings interest.15Internal Revenue Service. Instructions for Forms 1099-INT and 1099-OID You will owe federal income tax on those earnings at your ordinary rate, and most states tax them as well.