APY Calculator
APY Calculator
By Ashley Kilroy | Updated May 24, 2024
An annual percentage yield or APY calculator can be a very useful tool when you want to know an accurate rate of return for a savings account, certificate of deposit, and other interest-bearing asset. Interest rates donât always give the full picture because of the compounding frequency. That frequency indicates how often your interest gets added in with the principal so it too can earn interest. By factoring in compounding, you can get a better idea of how quickly your balance grows in one year.
An APY calculator, like the one below, can give you crucial information to determine the accountâs profitability, without your having to do a lot of math. Within seconds, this tool can show you how an account performs, so you can make an educated decision about what is best for your needs.
*Actual interest credited by your financial institution may vary based on institution-specific calculation methodology.
Calculator Definitions
⢠Initial Deposit: The amount of money you first deposit into a financial account (you may hear it refers to as the principal). Typically, the financial institution requires this amount at a minimum for you to open the account. In addition, it becomes the basis for your interest earnings, with larger deposits receiving better rates. The APY will multiply your initial deposit to create a new, higher balance.
⢠Monthly Contribution: You add money to your account by making a deposit. Your initial deposit funds the account, while subsequent deposits increase that principal amount upon which interest rate compounds.
⢠Savings Time Period: The period (usually expressed in years) over which your initial deposit or investment will grow. This figure is a key factor for an APY calculator because it determines how long your account will earn interest.
For instance, a $500 savings account compounding monthly with a 5% APY will earn $25.00 in interest after one year. On the other hand, letting the account sit for five years results in earnings of $138.14.
⢠APY (Annual Percentage Yield): When considering APY vs. APR, know that the APR is an annualized representation of how compounding interest grows your savings. Whether a savings account, CD, or other financial vehicle, your account will typically compound daily, weekly, monthly, or bimonthly.
Regardless of the frequency, APY vs. interest rate alone lets you see how much your account will increase over one year. The more your account compounds, the more your balance grows. As a result, more compounding creates a higher APY. Remember, APY provides a more accurate measure than the interest rate of your account’s rate of return because it calculates the effect of compounding.
⢠Compound Frequency: Compounding refers to when your deposit earns interest. However, financial products have different compounding rates, affecting how much you earn. For example, an account that compounds twice a year earns less than one that compounds every month (provided they have the same interest rate).
The greater the compounding frequency, the more often you earn interest, increasing the account’s APY. Because interest generates returns on both your deposits and past interest earnings, frequent compounding has a snowball effect, allowing your interest to build upon itself.
⢠Interest Earned: This expresses the interest earned by your initial deposit and any subsequent deposits over a specific period. APY calculators use the interest on the initial amount and any previously earned interest to project your total earnings per year.
⢠Total Contributions: The sum of all the subsequent deposits made into the account. Financial institutions may limit your total contributions by account type (such as a CD allowing only the initial contribution) or by amount (such as a $1 million balance limit for savings accounts).
What Is APY?
As mentioned above, the APY (or Annual Percentage Yield), is a standardized measure that reflects the total amount of interest earned on an investment, savings account, or CD over one year. To add a little more detail:
• It demonstrates the outcome of compounding interest after holding the account for one year.
• It is expressed as a percentage and provides a more accurate representation of the potential return on investment than the interest rate, which expresses the percentage multiplier per compounding period.
Because it involves multiple factors interacting over a one-year period, calculating APY can be challenging. In fact, those who are not fans of math may be really reluctant to delve into APYs too deeply.
Fortunately, an APY calculator makes understanding your account’s potential growth as easy as punching in some numbers.
How Do You Calculate APY?
For those who are not math-phobic and actually enjoy some good, complex calculations, yes, you can calculate APY.
Hereâs the formula:
APY = [1 + (i / n)]n – 1
You plug in your interest (i) and compounding frequency (n). Then, you follow the order of operations to get your rate.
Hereâs an example showing how:
Suppose you find a CD with a 5% interest rate compounding monthly. You use the APY formula to calculate your annual rate of return:
Formula: APY = [1 + (i / n)]n – 1
Step 1: [1+(.05/12)]12 – 1
Step 2: [1+.00416667]12 – 1
Step 3: 1.0041666712 – 1
Step 4: 1.05116 – 1 = 0.05116, or 5.116%
Therefore, your APY is 5.116%. This number is slightly higher than the 5% interest rate thanks to the monthly compounding frequency.
FAQ
Is APY compounded daily, monthly, or yearly?
APY measures your interest rate per year, taking into account the compounding frequency. Whether your account compounds daily or monthly, the APY shows the rate at which your account will grow every year. You can read the fine print on an account to learn what the compounding frequency is.
What’s the difference between APY and APR?
APY, or annual percentage yield, expresses the rate of interest an asset would earn over a full year, thanks to compounding interest. APR (annual percentage rate), on the other hand, is the total rate of interest you would pay on a loan or a credit card, taking into account the interest rate and any other fees.
What is 5% APY on $1000?
An account holding $1,000 with a 5% APY will yield different amounts based on the compounding period. For example, an account that compounds monthly will yield $50.00 at the end of the year for a total balance of $1,050.00.
Looking for a savings account with a competitive APY?
With a high-yield savings account from SoFi, get up to 3.60% APY1, no account fees2, and up to $300 with direct depositâ .
SoFi Checking and Savings is offered through SoFi Bank, N.A. Member FDIC. The SoFiÂŽ Bank Debit MastercardÂŽ is issued by SoFi Bank, N.A., pursuant to license by Mastercard International Incorporated and can be used everywhere Mastercard is accepted. Mastercard is a registered trademark, and the circles design is a trademark of Mastercard International Incorporated.
1
Annual percentage yield (APY) is variable and subject to change at any time. Rates are current as of 11/12/25. There is no minimum balance requirement. Fees may reduce earnings. Additional rates and information can be found at http://www.sofi.com/legal/banking-rate-sheet.
Eligible Direct Deposit means a recurring deposit of regular income to an account holderâs SoFi Checking or Savings account, including payroll, pension, or government benefit payments (e.g., Social Security), made by the account holderâs employer, payroll or benefits provider or government agency (âEligible Direct Depositâ) via the Automated Clearing House (âACHâ) Network every 31 calendar days.
Although we do our best to recognize all Eligible Direct Deposits, a small number of employers, payroll providers, benefits providers, or government agencies do not designate payments as direct deposit. To ensure you're earning the APY for account holders with Eligible Direct Deposit, we encourage you to check your APY Details page the day after your Eligible Direct Deposit posts to your SoFi account. If your APY is not showing as the APY for account holders with Eligible Direct Deposit, contact us at 855-456-7634 with the details of your Eligible Direct Deposit. As long as SoFi Bank can validate those details, you will start earning the APY for account holders with Eligible Direct Deposit from the date you contact SoFi for the next 31 calendar days. You will also be eligible for the APY for account holders with Eligible Direct Deposit on future Eligible Direct Deposits, as long as SoFi Bank can validate them.
Deposits that are not from an employer, payroll, or benefits provider or government agency, including but not limited to check deposits, peer-to-peer transfers (e.g., transfers from PayPal, Venmo, Wise, etc.), merchant transactions (e.g., transactions from PayPal, Stripe, Square, etc.), and bank ACH funds transfers and wire transfers from external accounts, or are non-recurring in nature (e.g., IRS tax refunds), do not constitute Eligible Direct Deposit activity. There is no minimum Eligible Direct Deposit amount required to qualify for the stated interest rate. SoFi Bank shall, in its sole discretion, assess each account holder's Eligible Direct Deposit activity to determine the applicability of rates and may request additional documentation for verification of eligibility.
See additional details at http://www.sofi.com/legal/banking-rate-sheet
2 No Account Fee
We do not charge any account, service or maintenance fees for SoFi Checking and Savings. We do charge a transaction fee to process each outgoing wire transfer. SoFi does not charge a fee for incoming wire transfers, however the sending bank may charge a fee. Our fee policy is subject to change at any time. See the SoFi Bank Fee Sheet for details at sofi.com/legal/banking-fees/.
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Who is eligible for a Direct Deposit Bonus?
How do I earn the Direct Deposit Bonus?
3. You will receive the bonus amount in your SoFi Checking account within 7 business days of completing all requirements listed above. You are only eligible to receive one bonus amount. You must have an open SoFi Checking account in good standing at the time of the bonus payment.
What is an Eligible Direct Deposit?
Not Eligible Deposits that are not from an employer, payroll or benefits provider or government agency and deposits that are non-recurring in nature are not eligible. Examples of deposits that are not eligible include check deposits, peer-to-peer transfers (e.g., transfers from Zelle, PayPal, Venmo, Wise, etc.), merchant transactions (e.g., transactions from PayPal, Stripe, Square, etc.), bank ACH funds transfers, wire transfers from external accounts, and IRS tax refunds. SoFi Bank shall, in its sole discretion, assess your Eligible Direct Deposit activity to determine eligibility and may require additional documentation to complete this verification.
Although we do our best to recognize all Eligible Direct Deposits, a small number of employers, payroll providers, benefits providers, or government agencies do not designate payments as direct deposit. If you have satisfied the Eligible Direct Deposit requirements but have not received a cash bonus in your Checking account, please contact us at 855-456-7634 with the details of your initial Eligible Direct Deposit. After SoFi validates the details of your Eligible Direct Deposit, your Direct Deposit Bonus will be based on the date we received your initial Eligible Direct Deposit.
What else is important to know?
New and existing SoFi members who have never set up direct deposit with SoFi are eligible for the Direct Deposit Bonus. Bonuses are limited to one bonus per SoFi member. In the case of a joint account, direct deposit activity will only be counted towards the primary account holderâs eligibility for the bonus (the primary account holder is the member who opened the joint account first).
1. Set up your first Eligible Direct Deposit. SoFi must receive it on or before 1/31/26.
2. Once SoFi receives and recognizes your first Eligible Direct Deposit, we will add up the Total Eligible Direct Deposits received over the next 25 calendar days. This total will determine the bonus amount.
Total Eligible Direct Deposit
Bonus Amount
Timing
$1.00 - $999.99
$0
To determine your bonus amount, SoFi will add up all your Eligible Direct Deposits received within 25 calendar days of your first Eligible Direct Deposit.
$1,000.00 - $4,999.99
$50
$5,000.00 or more
$300
Eligible: Recurring ACH deposit of regular income to your SoFi Checking or Savings account, including payroll, pension, or government benefit payments (e.g., Social Security), made by your employer, payroll or benefits provider or government agency (âEligible Direct Depositâ)
â˘This promotion is available between 12/7/2023 at 12:01AM ET and 1/31/2026 at 11:59PM ET. SoFi reserves the right to modify or end the promotion at any time without notice. The terms of this promotion take precedence over the terms of any prior Direct Deposit promotion.
â˘SoFi reserves the right to exclude any members from participating in this promotion for any reason, such as suspected fraud, misuse, or suspicious activity.
â˘SoFi members with Eligible Direct Deposit activity can earn 3.60% annual percentage yield (APY) on savings balances. Interest rates are variable and subject to change at any time. These rates are current as of 11/12/25. There is no minimum balance requirement. Fees may reduce earnings. Additional rates and information can be found at http://www.sofi.com/legal/banking-rate-sheet.
â˘Bonuses are considered miscellaneous income, and may be reportable to the IRS on Form 1099-MISC (or Form 1042-S, if applicable). SoFi is required to do this reporting in compliance with the applicable federal and state reporting requirements. Recipient is responsible for any applicable federal, state or local taxes associated with receiving the bonus offer; consult with your tax advisor to determine applicable tax consequences.
â˘This promotion is offered by SoFi Bank, N.A, Member FDIC (âSoFiâ)
Financial Tips & Strategies: The tips provided on this website are of a general nature and do not take into account your specific objectives, financial situation, and needs. You should always consider their appropriateness given your own circumstances.
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