What you need to open a Fidelity high-yield savings account

Fidelity offers a high-yield savings account through its Cash Management account, which you can open online in about 10 minutes. You will need a Social Security number, a valid government ID, your current address, and a funding source—either a bank account to transfer from or a check to deposit. Fidelity does not require a minimum opening deposit, though you must fund the account within 30 days of opening it to keep it active.

The account itself is free to maintain. There are no monthly fees, no inactivity fees, and no minimum balance requirement once the account is open. You can deposit money through bank transfer (ACH), wire transfer, check deposit by mail or mobile app, or by transferring funds from another Fidelity account if you have one.

Key Takeaways

  • You can open a Fidelity Cash Management account online with just your Social Security number, ID, address, and a bank account or check to fund it.
  • The account has no monthly fees, no minimum balance, and no inactivity penalties.
  • Deposits arrive via ACH transfer in one to three business days, or instantly if you use a Fidelity brokerage account you already own.
  • Your money is FDIC-insured up to $250,000 through Fidelity's partner banks, and Fidelity sweeps excess balances automatically to maintain that protection.
  • You can withdraw money anytime through transfers, debit card, or checks, with no withdrawal limits or penalties.

Step-by-step process to open the account online

Go to Fidelity's website and select "Open an Account." Choose "Cash Management" from the account type menu. You will be asked to enter your name, date of birth, Social Security number, and current address. Fidelity will verify your identity using information from credit bureaus—this usually takes seconds, though occasionally they ask you to answer security questions based on your financial history.

Next, you will set up login credentials and choose how to fund the account. If you have a bank account, select the ACH transfer option and enter your routing number and account number. Fidelity will send two small test deposits (usually under $1 each) to that account within one to two business days; you then log back in and confirm the amounts to verify you own the account. Once verified, your full transfer will process.

If you do not want to wait for test deposits, you can fund the account by mailing a check to Fidelity's deposit address, which they provide during setup. Checks typically clear within five to seven business days. If you already have a Fidelity brokerage account, you can transfer money from it instantly with no verification step needed.

How deposits and withdrawals work

Money you transfer from your bank account via ACH arrives in one to three business days. Wire transfers arrive the same business day if sent before 4 p.m. Eastern Time. Checks deposited by mail take five to seven business days; checks deposited through the Fidelity mobile app take one to two business days longer than mailed checks because they must be physically processed.

You can withdraw money anytime without penalty or limit. Transfers back to your bank account take one to three business days. You can also request a check mailed to you, which takes five to seven business days. If you need cash immediately, Fidelity provides a debit card linked to the account, though you will need to request it during or after account setup—it arrives by mail in five to seven business days.

There is no limit on how many deposits or withdrawals you can make per month, unlike some savings accounts that restrict transfers. This makes the account flexible for people who need to move money in and out regularly.

FDIC insurance and how your money is protected

Fidelity's Cash Management account is FDIC-insured through multiple partner banks, meaning your deposits are protected up to $250,000 per account holder per bank. Because Fidelity uses more than one partner bank, your total protection can exceed $250,000 if Fidelity automatically sweeps your balance across their partner network.

Fidelity manages this sweep automatically—you do not have to do anything. If your balance grows above $250,000, Fidelity distributes the excess to other partner banks so that no single bank holds more than $250,000 of your money. This protection applies as long as the account is in your name alone; joint accounts have separate $250,000 protection per owner.

The account is not insured against fraud or theft, but Fidelity offers fraud monitoring and will investigate unauthorized transactions. If someone gains access to your account and makes transfers, report it immediately through your online account or by calling Fidelity's customer service line.

Interest rates and how often interest compounds

Fidelity's Cash Management account earns interest on your full balance, and the rate changes based on the Federal Reserve's actions and market conditions. Interest is compounded daily and deposited to your account monthly. You can see your current rate on Fidelity's website or in your account dashboard—it updates whenever the rate changes.

Because rates change frequently, the APY (annual percentage yield) you earn today may be different in three months. Fidelity does not lock in a rate; your balance earns whatever the current rate is each day. This means your account benefits when rates rise and earns less when rates fall, but you are never locked into a lower rate if the market improves.

Comparing Fidelity to other high-yield savings options

Fidelity's Cash Management account competes with high-yield savings accounts from online banks like Marcus, Ally, and American Express Personal Savings. The main difference is that Fidelity is a brokerage firm, not a bank, so it uses partner banks to hold your deposits. This does not change your FDIC protection, but it means you cannot visit a physical Fidelity branch to deposit cash or speak to someone in person about your savings account.

If you already use Fidelity for investing or retirement accounts, the Cash Management account integrates seamlessly—you can transfer money between accounts instantly and see all your balances in one place. If you do not use Fidelity for anything else, you may find it simpler to open a high-yield savings account directly with an online bank, since you would not gain the integration benefit.

Fidelity's rates are competitive with other online options, though the exact ranking changes monthly as different banks adjust their rates. The difference between Fidelity and the highest-paying competitor is usually small—often less than 0.1% APY—so the choice often comes down to whether you value integration with other Fidelity accounts or prefer a dedicated savings bank.

What to do after your account is open

Once your account is funded and active, log in to set up automatic transfers if you want to save regularly. You can schedule recurring ACH transfers from your bank account to your Fidelity Cash Management account on any day of the month. This is useful if you want to move a fixed amount each paycheck without having to remember to do it manually.

You can also link the account to your Fidelity brokerage account (if you have one) or to external bank accounts for faster transfers. Review your account settings to enable mobile check deposit if you want that feature, and request a debit card if you think you will need one.

Check your account monthly to confirm interest has been deposited and to verify there are no unauthorized transactions. Fidelity sends statements monthly, which you can view online or request by mail.

Frequently Asked Questions

Can I open a Fidelity Cash Management account if I do not have a bank account?

No. You must have a bank account or be able to mail a check to fund the account. If you have neither, you would need to open a checking account first at a bank or credit union, then use that to fund your Fidelity account.

What happens if I do not fund the account within 30 days?

Fidelity will close the account if no deposit is made within 30 days of opening it. You can reopen a new account anytime, so this is not permanent, but you will have to go through the setup process again.

Is there a limit to how much I can deposit?

No deposit limit exists, but FDIC insurance only covers up to $250,000 per account holder per bank. Fidelity automatically sweeps balances above that threshold to other partner banks, so your full balance remains insured as long as it is distributed correctly across their network.

Can I use this account to pay bills?

Not directly through bill pay. You can transfer money out to your bank account and then pay bills from there, or use the debit card for purchases, but the Cash Management account itself does not have a bill pay feature.

What if Fidelity goes out of business?

Your deposits are protected by FDIC insurance through Fidelity's partner banks, not by Fidelity itself. Even if Fidelity closed, your money would remain insured and accessible through the partner banks holding it.