Capital One deposits interest monthly, on the last business day of each month

Capital One 360 savings accounts receive interest deposits once a month, typically on the last business day of the month. The exact date shifts slightly depending on weekends and holidays, but you can expect the deposit to land in your account by the end of the calendar month. This is different from some banks that compound interest daily but only deposit it quarterly or annually.

The amount you receive depends on the current Annual Percentage Yield (APY) that Capital One is offering at that time, multiplied by your average daily balance for the month. Capital One changes its APY periodically in response to Federal Reserve rate changes, so the interest you earn in one month may differ from the next. You can check your current APY and projected monthly interest in the Capital One 360 app or online dashboard.

Key Takeaways

  • Capital One deposits interest on the last business day of each month, not daily or quarterly.
  • The amount you earn each month depends on your average daily balance and Capital One's current APY, both of which can change.
  • You can see your APY and estimated monthly interest in your account dashboard before the deposit hits.
  • Interest is taxable income, and Capital One will send you a 1099-INT form if you earn $10 or more in a year.

How Capital One calculates your monthly interest

Capital One uses your average daily balance to calculate interest each month. This means the bank adds up your balance at the end of each day in the month, then divides by the number of days. If you had $5,000 in the account for 15 days and $10,000 for the remaining 15 days, your average daily balance would be $7,500. That figure gets multiplied by the current APY and divided by 12 to get your monthly interest.

The timing of deposits and withdrawals matters because they affect your average. A large deposit early in the month will boost your average for the full month. A withdrawal late in the month has less impact on the average than one made early. This is why some savers move money in before the month ends if they want to maximize that month's interest.

When the interest actually appears in your account

The interest deposit typically posts between the 28th and the last day of the month, depending on the calendar. If the last business day falls on a Friday, you will see it then. If it falls on a Monday after a weekend, the deposit may arrive on that Monday. Federal holidays can shift the date as well — for example, if the last business day would normally be a day the banking system is closed, Capital One moves the deposit to the previous business day.

You can check your account the morning of the expected deposit date to see if it has arrived. Capital One does not send a separate notification for interest deposits, so you will need to log in or check your transaction history to confirm. The deposit will appear as a credit with a description like "Interest Paid" or similar language.

How APY changes affect your interest earnings

Capital One adjusts its savings account APY in response to changes in the Federal Reserve's benchmark interest rate. When the Fed raises rates, Capital One typically raises its APY within days or weeks. When the Fed cuts rates, Capital One usually lowers its APY as well. These changes take effect on different dates depending on Capital One's internal schedule, so your APY in one month may be different from the previous month.

If Capital One lowers its APY mid-month, the change typically applies to interest calculated for the following month, not the current one. You will earn interest at the old rate for the month in which the change was announced. Capital One publishes its current APY on its website and in the app, so you can track whether a change has occurred. Some savers check the rate monthly to understand whether their earnings are increasing or decreasing.

Interest on different Capital One account types

Capital One 360 savings accounts all follow the same monthly interest schedule, but Capital One also offers money market accounts and CDs with different terms. Money market accounts may have higher APYs but often require larger minimum balances. CDs lock your money for a set term — three months, six months, one year, or longer — and pay a fixed APY that does not change, with interest either deposited monthly or at maturity depending on the CD term.

If you have multiple Capital One accounts, each one earns and receives interest on its own schedule. A savings account deposits interest monthly; a one-year CD might deposit interest at the end of the year. Check the terms for each account type you hold to understand when you will see interest deposits.

Tax reporting for interest income

Interest you earn on a Capital One savings account is taxable income. If you earn $10 or more in interest during a calendar year, Capital One will send you a Form 1099-INT by January 31 of the following year. You will need this form to report the interest on your federal tax return. Even if you earn less than $10, you should still report the interest on your return.

Capital One reports the interest to the IRS under your Social Security number or Tax ID, so make sure your account information is current. If you move or change your address, update it in your Capital One account to may support the 1099-INT reaches you. You can also read the form from your account dashboard once it is issued.

Frequently Asked Questions

Can I move money between accounts to increase my interest?

Yes. Moving money into your savings account before the end of the month increases your average daily balance for that month, which increases your interest. However, Capital One charges no fees for transfers, so there is no cost to moving money in and out. Keep in mind that the interest benefit is small — moving $1,000 in for one month at a 4% APY earns roughly $3.

What happens to my interest if I withdraw money mid-month?

Your interest is still calculated on your average daily balance, which includes the days before the withdrawal. If you withdraw $5,000 on the 15th of a 30-day month, the first 15 days count at the higher balance and the last 15 days count at the lower balance. The interest reflects both periods.

Does Capital One compound interest daily?

Capital One compounds interest daily, meaning interest earned each day is added to your balance and earns interest the next day. However, the actual deposit of interest to your account happens once a month. The daily compounding is calculated behind the scenes and paid out in one lump sum at month end.

Will I get interest if I open an account late in the month?

Yes, but only for the days you hold the account. If you open an account on the 20th of a 30-day month, your average daily balance includes only those 11 days. You will earn interest on that shorter period when the monthly deposit is made.

How do I know if my interest deposit posted?

Log into your Capital One 360 account and check your transaction history or account summary. Interest deposits appear as credits with a description like "Interest Paid". You can also check your account balance — it will be higher by the amount of the interest. Capital One does not send email or text alerts for interest deposits.