Start by deciding what matters most to you
Opening a savings account is straightforward, but where you open it shapes what you pay, what you earn, and how you access your money. The main choice is between a traditional bank branch, a credit union, or an online bank — each has different fees, interest rates, and minimum balances. Before you walk into a branch or click "open account," think about what you actually use: Do you need to deposit cash regularly? Do you want to talk to a person? Are you chasing the highest interest rate, or do you want simplicity?
The account itself works the same way everywhere — money goes in, earns interest, and you can withdraw it. What changes is the cost of holding that account and the speed at which your money grows.
Key Takeaways
- Traditional banks offer branch access and cash deposits but typically pay lower interest rates and charge monthly fees unless you maintain a minimum balance.
- Credit unions often have lower fees and better rates than banks, but membership is restricted by employer, location, or affiliation, and they have fewer branches.
- Online banks pay the highest interest rates because they have no physical branches, but you cannot deposit cash in person and customer service is phone or chat only.
- You will need a government ID, Social Security number, and proof of address to open an account at any institution.
- Monthly maintenance fees, minimum balance requirements, and interest rates vary widely — comparing three options takes 15 minutes and can save you hundreds of dollars per year.
Traditional banks: branch access and convenience, higher costs
A traditional bank is what most people picture: a physical location where you can walk in, deposit cash, and speak to a teller. Banks like Chase, Bank of America, Wells Fargo, and regional institutions like PNC or US Bank operate this way. The advantage is when ready access to your money and the ability to deposit cash without a mobile app.
The trade-off is cost and return. Most traditional banks charge a monthly maintenance fee — often $5 to $15 — unless you keep a minimum balance (usually $500 to $2,500) or set up direct deposit. Interest rates are typically 0.01% to 0.05% annually, which means $100 in savings earns less than a dollar per year. You are paying for the convenience of branches and tellers, not for growth.
Traditional banks make sense if you deposit cash regularly, prefer face-to-face service, or already have a checking account there and want everything in one place. If you are purely saving and do not need branches, the cost eats into your returns.
Credit unions: lower fees and better rates, membership required
A credit union is a nonprofit financial institution owned by its members. You do not just open an account — you become a member, usually by working for a specific employer, living in a specific area, or belonging to an organization. Common credit unions include Navy Federal (military and families), Connexus (open to many professions), and local options tied to your city or county.
Credit unions typically charge no monthly fee and pay higher interest rates than traditional banks — often 0.05% to 0.25% depending on the union and the account type. They also tend to be more flexible with minimum balance requirements. The catch is access: credit unions have far fewer branches than banks, and not all ATMs accept credit union cards without a fee. If you need to deposit cash, you are limited to the union's locations or partner networks.
To find a credit union you can join, search the CO-OP Network or Shared Branch locator on the Credit Union National Association website, or ask your employer if they sponsor one. Membership is usually free, and once you are in, opening a savings account takes the same documents as a bank.
Online banks: highest interest rates, no physical branches
An online bank exists only on the internet — no branches, no tellers, no cash deposits. Banks like Ally, Marcus (owned by Goldman Sachs), Discover, and Wealthfront operate this way. Because they have no physical locations, they pass the savings to you in the form of higher interest rates: typically 4% to 5% annually as of early 2024, though rates change with the Federal Reserve.
The trade-off is access. You cannot walk in and deposit cash. You can deposit checks by photographing them with your phone (mobile deposit), and you can transfer money electronically, but if you need cash regularly, an online bank alone is not practical. Customer service is phone or chat, not in person. Some people solve this by keeping a small checking account at a traditional bank for cash and using an online savings account for the bulk of their savings.
Online banks make sense if you save money and rarely touch it, if you are comfortable with digital banking, and if you want the highest possible return. The interest rate difference between an online bank and a traditional bank can add up to $100 to $300 per year on a $5,000 balance.
What you need to open an account anywhere
The documents are the same across all three types. You will need a government-issued photo ID (driver's license, passport, or state ID), your Social Security number, and proof of address (a utility bill, lease, or bank statement dated within the last 60 days). Some institutions also ask for your employment status or income, though this is not required to open a savings account.
At a traditional bank or credit union, bring these documents in person or upload them online if the institution offers that option. At an online bank, you upload photos of your ID and proof of address through their website or app. The process usually takes 10 to 15 minutes, and your account opens the same day or within one business day.
Comparing accounts side by side
| Feature | Traditional Bank | Credit Union | Online Bank |
|---|---|---|---|
| Monthly fee | $5–$15 (waived with minimum balance) | Usually $0 | Usually $0 |
| Interest rate | 0.01%–0.05% | 0.05%–0.25% | 4%–5% |
| Minimum balance | $500–$2,500 | $0–$500 | $0–$25 |
| Cash deposits | Yes, in branch | Yes, in branch or partner ATM | No |
| Customer service | In person, phone, online | Phone, online, some branches | Phone, chat, email |
| Best for | Regular cash deposits, branch access | Lower fees, better rates, membership available | Maximum interest, minimal account activity |
How to narrow your choice
Start with a single question: Do you need to deposit cash regularly? If yes, a traditional bank or credit union is your only option. If no, an online bank will earn you significantly more interest.
If you are choosing between a traditional bank and a credit union, check whether you are may be able to access for a credit union first. Search the CO-OP Network or ask your employer. If you may have access to, compare the monthly fee and interest rate of the credit union to the bank. Most credit unions will win on both counts.
If you are choosing between a credit union and an online bank, the decision depends on whether you need cash access. If you do, the credit union is worth it. If you do not, the online bank's interest rate is hard to beat — the difference compounds over time.
Once you have narrowed it to one or two institutions, visit their websites, look up the current interest rate and monthly fee, and check whether there is a minimum balance. Then open the account. The whole process takes less than 30 minutes.
Frequently Asked Questions
Can I open a savings account online if I do not have a physical address?
Most banks and credit unions require proof of a U.S. address. If you are unhoused or living temporarily, some online banks and credit unions are more flexible — call ahead and ask. A few accept a P.O. box or a letter from a shelter as proof of address.
What happens if I do not meet the minimum balance?
If your balance falls below the minimum, the bank charges a monthly fee (usually $5 to $15) until you bring it back up. Some banks waive the fee if you set up direct deposit instead. Check the account terms before you open it.
Can I move money between a traditional bank and an online bank?
Yes. Once both accounts are open, you can transfer money electronically between them using the account and routing numbers. Transfers usually take one to three business days. You can also set up automatic transfers if you want to move money on a schedule.
Do I lose my money if the bank fails?
No. Savings accounts at banks and credit unions are insured by the FDIC (Federal Deposit Insurance Corporation) or NCUA (National Credit Union Administration) up to $250,000 per account holder per institution. Your money is protected even if the institution closes.
Which type of account earns the most interest?
Online banks currently offer the highest rates — 4% to 5% annually. Credit unions are next at 0.05% to 0.25%. Traditional banks pay the least at 0.01% to 0.05%. Rates change with the Federal Reserve, so check the current rate before you open an account.