What Is Annual Percentage Yield (APY)? A Complete Guide

Sam OneliaWritten by Sam Onelia

- Jul 13, 2026

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Helping millions make smarter financial decisions since 2014
LaizoEdited by Ricardo Laizo
  • Understand how APY measures the real annual return on your savings, including the effect of compound interest.
  • Compare variable and fixed APY across savings accounts, CDs, and money market accounts.
  • Learn how APY differs from APR and simple interest rates to make smarter financial decisions.

Annual percentage yield - Comparison

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Commission on US stocks$0
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Number of stocks6,000+
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1%
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$50
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Yes
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Yes
Robo Advisor
No
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Yes
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Yes
Total trading options
6,000+ - 300+ - 20
Debit Card
Yes

Platforms & support

Web
Yes
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Yes
Android
Yes
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Yes
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Phone
No
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Yes
Community forums
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Yes
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Commission on US stocks$0
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Number of stocks3300
Number of ETFs500
Inactivity fee$25 every 6 months of login inactivity
Total trading options3300 - 500
Financer Score™Reviewed by 97 users
Pricing80
Customer Support100
Terms and Flexibility80
Customer Experience74

Fees & commissions

Commission on local stocks
$0
Commission on US stocks
$0
ETF commissions
$0
Currency exchange fee
0%
Deposit fee
$0
Withdrawal flat fee
$0
Inactivity fee
$25 every 6 months of login inactivity

Investing

Minimum deposit
$5
Demo account
No
Interest on uninvested funds
Yes
Robo Advisor
Yes
Copy Trading
No
Fractional shares
Yes
Total trading options
3300 - 500
Debit Card
Yes

Platforms & support

Web
Yes
iOS
Yes
Android
Yes
Desktop
No
Live chat
Yes
Email
Yes
Phone
Yes
24/7 Support
No
Community forums
Yes

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Yes
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Commission on US stocks$0
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Number of stock exchanges10
Number of stocks10000
Number of ETFs3,000+
Inactivity fee$10 per month (free if account meets minimum activity)
Total trading options10000 - 3,000+ - 10
Financer Score™Reviewed by 21 users
Pricing80
Customer Support80
Terms and Flexibility80
Customer Experience91

Fees & commissions

Commission on local stocks
$0
Commission on US stocks
$0
ETF commissions
$0
Currency exchange fee
0.5%
Deposit fee
$0
Withdrawal flat fee
$25 (for wire transfers, domestic ACH withdrawals are free)
Inactivity fee
$10 per month (free if account meets minimum activity)

Investing

Minimum deposit
$1
Demo account
Yes
Interest on uninvested funds
Yes
Robo Advisor
No
Copy Trading
No
Fractional shares
Yes
Total trading options
10000 - 3,000+ - 10
Debit Card
Yes

Platforms & support

Web
Yes
iOS
Yes
Android
Yes
Desktop
Yes
Live chat
Yes
Email
Yes
Phone
Yes
24/7 Support
No
Community forums
Yes

Additional fields

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Yes
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Commission on US stocksN/A
Minimum deposit$75
Number of stock exchangesN/A
Number of stocks0
Number of ETFs0
Inactivity fee$0
Total trading options0 - 0 - N/A
Financer Score™Reviewed by 15 users
Pricing100
Customer Support100
Terms and Flexibility90
Customer Experience68

Fees & commissions

Commission on local stocks
Standard $0.89 / Micro $0.49 per side
Commission on US stocks
N/A
ETF commissions
N/A
Currency exchange fee
0.7%
Deposit fee
$0
Withdrawal flat fee
$0
Inactivity fee
$0

Investing

Minimum deposit
$75
Demo account
Yes
Interest on uninvested funds
No
Robo Advisor
No
Copy Trading
No
Fractional shares
No
Total trading options
0 - 0 - N/A
Debit Card
Yes

Platforms & support

Web
Yes
iOS
Yes
Android
Yes
Desktop
Yes
Live chat
Yes
Email
Yes
Phone
No
24/7 Support
Yes
Community forums
No

Additional fields

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Yes
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Number of stocks7,500+
Number of ETFs2,500+
Inactivity fee$0
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Financer Score™Reviewed by 21 users
Pricing80
Customer Support60
Terms and Flexibility40
Customer Experience86

Fees & commissions

Commission on local stocks
$1 per order
Commission on US stocks
$1 per order
ETF commissions
$1 per order
Currency exchange fee
1.5%
Deposit fee
$0
Withdrawal flat fee
$0
Inactivity fee
$0

Investing

Minimum deposit
$10
Demo account
No
Interest on uninvested funds
No
Robo Advisor
No
Copy Trading
No
Fractional shares
Yes
Total trading options
7,500+ - 2,500+
Debit Card
Yes

Platforms & support

Web
Yes
iOS
Yes
Android
Yes
Desktop
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Phone
Yes
24/7 Support
Yes
Community forums
Yes

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Inactivity fee$0
Total trading optionsAround 100 - 7
Financer Score™Reviewed by 22 users
Pricing70
Customer Support70
Terms and Flexibility80
Customer Experience69

Fees & commissions

Commission on local stocks
Bronze $3/mo, Silver $6/mo, Gold $12/mo
Commission on US stocks
$0
ETF commissions
$0
Currency exchange fee
0%
Deposit fee
$0
Withdrawal flat fee
$0
Inactivity fee
$0

Investing

Minimum deposit
$5
Demo account
No
Interest on uninvested funds
Yes
Robo Advisor
Yes
Copy Trading
No
Fractional shares
Yes
Total trading options
Around 100 - 7
Debit Card
Yes

Platforms & support

Web
Yes
iOS
Yes
Android
Yes
Desktop
No
Live chat
Yes
Email
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Phone
Yes
24/7 Support
Yes
Community forums
No

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Commission on US stocks$0
Minimum deposit$1
Number of stocks5000
Number of ETFs2000
Inactivity fee$0
Total trading options5000 - 2000
Financer Score™Reviewed by 14 users
Pricing100
Customer Support60
Terms and Flexibility80
Customer Experience30

Investing involves risk. Commission-free trading of stocks, ETFs and options refers to $0 commissions for Robinhood Financial self-directed individual cash or margin brokerage accounts that trade U.S. listed securities via mobile or web. Regulatory and exchange fees may apply. Please see Robinhood Financial Fee Schedule to learn more.

Fees & commissions

Commission on local stocks
$0
Commission on US stocks
$0
ETF commissions
$0
Currency exchange fee
0%
Deposit fee
$0
Withdrawal flat fee
$0
Inactivity fee
$0

Investing

Minimum deposit
$1
Demo account
No
Interest on uninvested funds
Yes
Robo Advisor
Yes
Copy Trading
No
Fractional shares
Yes
Total trading options
5000 - 2000
Debit Card
Yes

Platforms & support

Web
Yes
iOS
Yes
Android
Yes
Desktop
Yes
Live chat
Yes
Email
Yes
Phone
Yes
24/7 Support
Yes
Community forums
No

Additional fields

Recommended company
No
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Commission on US stocks$0 for online U.S. equity trades
Minimum deposit$0

Fees & commissions

Commission on local stocks
$0 for online U.S. equity trades
Commission on US stocks
$0 for online U.S. equity trades
ETF commissions
$0 online ETF trades; limited ETFs may incur $100 service fee
Deposit fee
Electronic funds transfer (EFT): $0
Withdrawal flat fee
Domestic bank wire: $0

Investing

Minimum deposit
$0
Demo account
No
Interest on uninvested funds
Yes
Robo Advisor
Yes
Copy Trading
No
Fractional shares
Yes
Debit Card
No

Platforms & support

Web
Yes
iOS
Yes
Android
Yes
Desktop
Yes
Live chat
Yes
Email
Yes
Phone
Yes
24/7 Support
Yes
Community forums
Yes

Additional fields

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Commission on US stocks$0 commissions for U.S.-listed stocks; regulatory and other fees may apply
Minimum deposit$0
Inactivity fee$5/month after more than 12 months inactive, effective August 1, 2026; exemptions apply

Fees & commissions

Commission on local stocks
$0 commissions for U.S.-listed stocks; regulatory and other fees may apply
Commission on US stocks
$0 commissions for U.S.-listed stocks; regulatory and other fees may apply
ETF commissions
$0 commissions for U.S.-listed ETFs; regulatory and other fees may apply
Deposit fee
$0 for ACH and debit card deposits
Withdrawal flat fee
ACH: $0; domestic wire: $25; international wire: $45
Inactivity fee
$5/month after more than 12 months inactive, effective August 1, 2026; exemptions apply

Investing

Minimum deposit
$0
Demo account
Yes
Interest on uninvested funds
Yes
Robo Advisor
Yes
Copy Trading
No
Fractional shares
Yes
Debit Card
Yes

Platforms & support

Web
Yes
iOS
Yes
Android
Yes
Desktop
Yes
Live chat
No
Email
Yes
Phone
Yes
24/7 Support
No
Community forums
Yes

Additional fields

Recommended company
No

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Currency exchange fee
0% - 1.5% (0.53%)
Minimum deposit
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Demo account
4 (44.4%)
Interest on uninvested funds
7 (77.8%)
Robo Advisor
5 (55.6%)
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1 (11.1%)
Fractional shares
8 (88.9%)
Debit Card
8 (88.9%)
Web
9 (100%)
iOS
9 (100%)
Android
9 (100%)
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6 (66.7%)
Live chat
8 (88.9%)
Email
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6 (66.7%)

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Customer Experience74
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What Is Annual Percentage Yield (APY)?

Annual Percentage Yield (APY) is the real rate of return you earn on a savings account, certificate of deposit (CD), or other interest-bearing account over one year. Unlike a simple interest rate, APY includes the effect of compound interest, which means you earn interest on the interest you've already accumulated.

Banks are required by federal law (the Truth in Savings Act) to disclose APY, making it the most reliable number for comparing savings products apples-to-apples.

Here's a quick example: if you deposit $10,000 into a savings account with a 4% interest rate compounded daily, the APY comes out to about 4.08%. After one year, you'd have $10,408, not just $10,400. That extra $8 comes from compound interest working in your favor.

How to Calculate APY

The APY formula accounts for both the nominal interest rate and how often interest compounds:

APY = (1 + r/n)^n - 1

Where:

  • r = the nominal annual interest rate (as a decimal)
  • n = the number of compounding periods per year

Let's say a savings account offers 4% interest compounded monthly:

  • r = 0.04
  • n = 12
  • APY = (1 + 0.04/12)^12 - 1 = 0.0407 = 4.07%

If that same 4% compounds daily (n = 365):

  • APY = (1 + 0.04/365)^365 - 1 = 0.0408 = 4.08%

The more frequently interest compounds, the higher the APY. That's why daily compounding beats monthly, and monthly beats quarterly.

Compounding FrequencyPeriods Per Year (n)APY on 4% RateEarnings on $10,000

Annual

1

4.00%

$400.00

Quarterly

4

4.06%

$406.04

Monthly

12

4.07%

$407.42

Daily

365

4.08%

$408.08

What Is a Good APY?

A "good" APY depends on the type of account and current market conditions. As of 2026, the national average savings account APY is just 0.39% according to the FDIC. But the best high-yield savings accounts offer rates up to 5.00% APY, more than 12 times the average.

Here's a general benchmark for what constitutes a competitive APY across different account types:

  • High-yield savings accounts: 4.00% to 5.00% APY
  • Money market accounts: 3.50% to 4.50% APY
  • 1-year CDs: Up to 4.10% APY
  • Traditional savings accounts: 0.01% to 0.60% APY

APY rates are closely tied to the Federal Reserve's federal funds rate. When the Fed raises rates, APYs on savings products tend to rise. When the Fed cuts rates, APYs follow. The current federal funds rate sits at 3.50% to 3.75% after several cuts in late 2025.

Variable APY vs. Fixed APY

There are two types of APY you'll encounter when shopping for savings products, and the difference matters for your financial planning.

Variable APY fluctuates based on market conditions and the Federal Reserve's interest rate decisions. Most savings accounts and money market accounts offer variable APYs. When the Fed cuts rates, your APY may drop. When rates rise, your APY can increase. This is the most common type.

Fixed APY stays the same for a set period, regardless of what happens to market rates. CDs are the most common product with fixed APYs. If you lock in a 1-year CD at 4.10% APY today, you earn that rate for the full term, even if the Fed cuts rates tomorrow.

The trade-off is straightforward: variable APYs give you flexibility (you can withdraw anytime), while fixed APYs give you certainty (your rate won't drop, but you may face early withdrawal penalties).

FeatureVariable APYFixed APY

Rate changes?

Yes, based on market conditions

No, locked for the term

Common products

Savings accounts, money markets

CDs, some bonds

Withdrawal flexibility

Withdraw anytime

Early withdrawal penalties

Best when rates are

Rising (you benefit from increases)

Falling (you're locked in higher)

Risk

APY may drop if Fed cuts rates

You miss out if rates rise

APY vs. Interest Rate: What's the Difference?

The nominal interest rate is the basic percentage a bank pays on your deposit. APY takes that rate and factors in compounding, showing you the actual amount you'll earn over a year.

Think of it this way: the interest rate is the advertised speed, while APY is the actual distance you'll travel. They're closely related, but APY is always equal to or higher than the interest rate (assuming compounding happens more than once a year).

For practical purposes, if two banks both advertise a 4% interest rate but one compounds daily and the other compounds annually, the daily-compounding bank gives you a higher APY (4.08% vs. 4.00%). That's why APY is the better number to compare.

Banks are legally required to publish APY under the Truth in Savings Act, specifically so consumers can make fair comparisons.

APY vs. APR: Know the Difference

APY and APR look similar but serve opposite purposes:

  • APY (Annual Percentage Yield) = what you earn on savings and investments
  • APR (Annual Percentage Rate) = what you pay on loans and credit cards

APR includes the interest rate plus any fees charged by the lender (origination fees, closing costs, etc.). APY includes the base interest rate plus the effect of compounding.

Here's where it gets practical: when you're saving money, you want the highest APY possible. When you're borrowing money, you want the lowest APR possible.

A credit card with a 24% APR costs you roughly 2% per month on your outstanding balance. A savings account with a 4.50% APY earns you about 0.37% per month on your total balance, including previously earned interest.

APYAPR

Measures

What you earn

What you pay

Includes

Interest rate + compounding

Interest rate + fees

Used for

Savings accounts, CDs, money markets

Loans, credit cards, mortgages

Goal

Higher is better

Lower is better

Compounding

Included in calculation

Not typically included

How APY Affects Your Savings Over Time

The real power of APY shows up over longer time horizons. Compound interest creates a snowball effect where your earnings accelerate year after year.

Consider a $10,000 deposit at 4.50% APY:

  • After 1 year: $10,450
  • After 5 years: $12,462
  • After 10 years: $15,530
  • After 20 years: $24,117

That same $10,000 at the national average of 0.39% APY would only grow to $10,039 after year one, and just $10,808 after 20 years. The difference between a high-yield account and a traditional savings account over two decades is $13,309 in pure interest earnings.

You can run your own numbers with our compound interest calculator to see how different APYs affect your specific savings goals.

Where to Find the Best APY Rates

The biggest APY gap is between traditional banks and online banks. Brick-and-mortar banks often offer APYs under 0.10% on savings accounts because they have high overhead costs (branches, staff, real estate). Online banks, credit unions, and fintech companies consistently offer the highest APYs because they operate with lower costs.

Here's where to look:

  • Online high-yield savings accounts offer the best combination of high APY and easy access to your money. Many have no minimum balance requirements and no monthly fees.
  • Certificates of Deposit (CDs) lock your money for a set term (3 months to 5 years) in exchange for a guaranteed fixed APY. Longer terms often pay higher rates.
  • Money market accounts combine higher APYs with check-writing and debit card access, though they may require higher minimum balances.

Before opening any account, verify that the institution is FDIC-insured (banks) or NCUA-insured (credit unions). Compare APYs, minimum balance requirements, fees, and withdrawal limits.

Is APY Paid Monthly or Yearly?

APY is an annual rate, but most banks actually pay interest monthly. Here's how it works: the bank divides your APY into 12 monthly portions and credits your account each month.

For example, with a 4.50% APY on $10,000, you won't receive $450 at the end of the year in one lump sum. Instead, you'll receive roughly $36.70 in the first month (slightly less than 1/12 of the annual total because compounding builds gradually). Each subsequent month, you earn interest on a slightly larger balance.

Some banks compound daily but credit monthly. Others compound and credit monthly. The frequency of crediting doesn't change your APY, it just changes when you see the money appear in your account.

Compare savings accounts to find accounts with the APY and payout schedule that works for your savings strategy.

Frequently Asked Questions

What is APY and how does it work?

APY stands for Annual Percentage Yield. It measures the total interest you earn on a deposit or savings account over one year, including the effect of compound interest. Unlike a simple interest rate, APY accounts for how often your interest compounds (daily, monthly, quarterly), giving you an accurate picture of your real earnings.

How is APY calculated?

APY is calculated using this formula: APY = (1 + r/n)^n - 1, where r is the nominal annual interest rate and n is the number of compounding periods per year. For example, a 4% interest rate compounded daily (365 times per year) gives an APY of 4.08%.

What is a good APY on a savings account?

A good APY depends on current market conditions. As of 2026, the national average savings account APY is 0.39%, but the best high-yield savings accounts offer 4.00% to 5.00% APY. Any rate significantly above the national average is considered good. Online banks and credit unions typically offer the highest APYs.

What is the difference between APY and APR?

APY measures what you earn on savings and investments, while APR measures what you pay on loans and credit. APY factors in compound interest on your earnings. APR includes the interest rate plus lender fees on borrowed money. When saving, look for a high APY. When borrowing, look for a low APR.

Is APY paid out monthly?

APY is an annual rate, but most banks pay interest monthly. The bank divides your annual yield into monthly portions and credits your account each month. Compounding means each month's interest payment slightly increases, because you're earning interest on previously earned interest.

Does a higher APY mean more risk?

Not necessarily. As long as your money is in an FDIC-insured bank or NCUA-insured credit union, your deposits are protected up to $250,000 per depositor, per institution. Online banks often offer higher APYs because they have lower overhead costs, not because they're riskier.

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