What a sub savings account is and why you might use one

A sub savings account in Capital One 360 is a separate savings account linked to your main account. You can create multiple sub accounts under one login, each with its own balance and interest rate. Capital One 360 calls these "savings buckets" — they work like labeled containers for different savings goals.

The main reason to set one up is to organize money by purpose. You might have one sub account for an emergency fund, another for a car down payment, and another for vacation. Because each account has its own balance displayed separately, you can see at a glance how much you have saved toward each goal. The money stays in the same bank and earns the same interest rate, but the separation makes it harder to accidentally spend money you meant to save for something specific.

Sub accounts also help if you want to automate savings. You can set up automatic transfers from your checking account into a specific sub savings account on payday, so money moves toward your goal without you having to remember to move it manually.

Key Takeaways

  • You can create up to 25 sub savings accounts in Capital One 360, each with its own name and balance.
  • Sub accounts earn the same interest rate as your main savings account and are FDIC insured up to the standard limit.
  • You set up a sub account by logging into Capital One 360 online or through the mobile app and selecting the option to add a new savings account.
  • Once created, you can transfer money between your main account and sub accounts instantly at no cost.
  • Each sub account has its own routing and account number, so you can have direct deposits sent to a specific sub account if you want.

How to create a sub savings account through the Capital One 360 website

Log into your Capital One 360 account on the website. On the dashboard or accounts page, look for a button or link that says "Add Account" or "Open a New Account." Click it. Capital One 360 will show you options for the type of account you want to open — select "Savings Account."

You will then be asked to name the account. Use a name that tells you what the money is for: "Emergency Fund," "Car Down Payment," "Vacation 2025," or whatever your goal is. This name appears on your dashboard every time you log in, so make it clear and specific to yourself.

After you name it, Capital One 360 will confirm the account details and show you the interest rate. The sub account will be created instantly. You will see it listed on your accounts page alongside your main savings account and any other sub accounts you have already created.

How to create a sub savings account through the Capital One 360 mobile app

Open the Capital One 360 mobile app and log in. On the home screen or accounts tab, look for a button labeled "Add Account," "New Account," or a plus sign (+). Tap it. The app will prompt you to choose the account type — select "Savings Account."

Enter a name for the account that describes its purpose. The app will show you the current interest rate and ask you to confirm. Once you confirm, the sub account is created and will appear in your list of accounts immediately. You can switch between accounts by tapping on them in the app.

Moving money into and out of sub accounts

After you create a sub account, you need to move money into it. You can transfer from your main Capital One 360 checking or savings account, or from an external bank account you have linked to your Capital One 360 profile.

To transfer between your own Capital One 360 accounts, log in and select the account you want to transfer from. Look for a "Transfer" or "Move Money" option. Choose the sub account as the destination and enter the amount. The transfer happens instantly and costs nothing.

To transfer from an external bank account, you will need to link that account first. Capital One 360 will ask for the routing number and account number of the external bank. Once linked, you can initiate a transfer from that account to your sub account. Transfers from external banks typically take one to three business days, depending on your bank and the time of day you submit the transfer.

You can also set up automatic transfers. In the transfer section, look for an option to schedule recurring transfers. You can choose the amount, the source account, the destination sub account, and how often the transfer should happen — weekly, biweekly, monthly, or on a specific date each month.

Using direct deposit to fund a sub account

If you want your employer to deposit part of your paycheck directly into a sub account instead of your main account, you can do that. Each sub account has its own routing number and account number, just like a separate bank account would.

Log into Capital One 360 and open the sub account you want to use for direct deposit. Look for account details or account information. You will see the routing number and account number for that specific sub account. Write these down or take a screenshot.

Give this routing number and account number to your employer's payroll department, along with your name and any other information they ask for. On your next pay cycle, your employer will deposit the amount you specified into that sub account instead of your main account. This is useful if you want a portion of each paycheck to go automatically toward a specific savings goal.

Limits and rules for sub savings accounts

Capital One 360 allows you to create up to 25 sub savings accounts under one login. Each account earns interest at the same rate as your main savings account. All accounts are FDIC insured up to $250,000 per depositor, per bank, per ownership category — so if you have $250,000 in your main savings account and another $250,000 across your sub accounts, only the first $250,000 is covered by FDIC insurance.

There are no monthly fees for sub accounts, and you can close a sub account at any time. If you close an account that has money in it, Capital One 360 will transfer the balance to your main savings account before closing it.

Sub accounts have the same withdrawal limits as your main savings account. Federal law previously limited savings account withdrawals to six per month, but that rule was suspended. However, Capital One 360 may still have its own limits on how many transfers you can make per month — check your account agreement or contact Capital One 360 to confirm current limits.

Frequently Asked Questions

Can I rename a sub account after I create it?

Yes. Log into Capital One 360, open the sub account, and look for an option to edit the account name or settings. You can change the name to whatever you want. The new name will appear on your dashboard the next time you log in.

Do sub accounts earn interest?

Yes. Sub accounts earn the same interest rate as your main Capital One 360 savings account. Interest is calculated daily and deposited monthly. The interest rate changes based on market conditions and Capital One 360's current rates, which apply to all your accounts equally.

What happens if I close my main Capital One 360 account?

If you close your main account, your sub accounts will also close. Capital One 360 will transfer any money in your sub accounts to you before the accounts are closed. You can request a check, a transfer to an external bank account, or another method depending on what Capital One 360 offers at the time.

Can someone else access my sub accounts?

Only if you give them access. If you set up authorized users or power of attorney on your main Capital One 360 account, those people may be able to see and transfer money from your sub accounts. If you want to keep a sub account private, do not add other users to your account or discuss the account details with anyone.

Is there a minimum balance required for a sub account?

Capital One 360 does not require a minimum balance to open or maintain a sub savings account. You can open an account and leave it empty, or deposit as little as $1. However, check Capital One 360's current terms, as policies can change.