How does compounding frequency affect APY?

More frequent compounding produces a higher APY. Daily compounding yields slightly more than monthly, which yields more than quarterly or annual compounding. The difference grows with higher interest rates.

What is a good APY for a savings account?

As of 2026, competitive high-yield savings accounts offer APYs between 4.00% and 5.25%. Online banks typically offer higher rates than traditional banks due to lower overhead costs.

Why do banks advertise APY instead of APR?

Banks are required by the Truth in Savings Act to disclose APY on deposit accounts so consumers can make accurate comparisons. APY reflects actual earnings including compounding, making it a fairer comparison metric.

How much will I earn with 5% APY on $10,000?

With 5% APY on a $10,000 deposit, you would earn $500 in the first year, bringing your total to $10,500. After 5 years with no additional deposits, you would have approximately $12,762.82.

Does APY include fees?

No, APY only reflects the interest earned through compounding. It does not account for account fees, minimum balance requirements, or penalties. Always check the full fee schedule alongside the advertised APY.

APY Calculator

Q: What is APY and how is it different from APR?

APY (Annual Percentage Yield) is the effective annual return accounting for compound interest. APR (Annual Percentage Rate) is the base interest rate without compounding. APY is always equal to or higher than APR because it includes the compounding effect.

Calculate annual percentage yield on savings accounts, CDs, and money market accounts. Convert APR to APY, see how compounding frequency affects your earnings, and compare rates side by side.

Nominal Interest Rate (APR %) Compounding Frequency Deposit Amount ($) (optional — to show earnings)

Enter APR (%)

Compounding Frequency	APY	Extra Earned on $10,000

Account 1

Account Name APR (%) Compounding Deposit ($)

Account 2

Account Name APR (%) Compounding Deposit ($)

Account 3

Account Name APR (%) Compounding Deposit ($)

Account	APR	APY	1-Year Earnings	5-Year Earnings

How APY Works

Annual Percentage Yield (APY) represents the real rate of return you earn on a deposit over one year, accounting for the effect of compound interest. Unlike a simple interest rate, APY factors in how often interest is compounded, giving you an accurate picture of your actual earnings. Banks and credit unions are required by the Truth in Savings Act to disclose APY so consumers can make fair comparisons between accounts. The formula is straightforward: APY = (1 + r/n)^n - 1, where r is the nominal annual rate (APR) and n is the number of compounding periods per year. A savings account with a 5% APR compounded daily yields an APY of approximately 5.13%, meaning you earn slightly more than the stated rate thanks to daily compounding.

APY Formula

APY = (1 + r/n)ⁿ − 1

Where: r = nominal annual interest rate (APR as decimal), n = number of compounding periods per year

APY vs APR Explained

APR (Annual Percentage Rate) is the base interest rate without compounding. APY is the effective annual rate after compounding is applied. The difference between them grows as the compounding frequency increases and as the base rate rises. For a 5% APR compounded monthly, the APY is 5.12%. Compounded daily, it becomes 5.13%. At lower rates the difference is negligible, but at higher rates the gap widens significantly. For example, a 12% APR compounded daily yields an APY of 12.75%, a difference of 0.75 percentage points. When comparing savings accounts, always use APY since it reflects what you will actually earn. When evaluating loans, the APR is typically quoted, and the effective cost may be higher once compounding is included.

How Compounding Frequency Affects Your Earnings

Compounding frequency determines how often earned interest is added to your balance and begins earning interest itself. Daily compounding adds interest every day, monthly compounding adds it once a month, and annual compounding adds it once a year. More frequent compounding means your interest starts earning interest sooner, resulting in a higher effective yield. On a $10,000 deposit at 5% APR, daily compounding earns $512.67 in the first year compared to $500.00 with annual compounding, a difference of $12.67. Over five years the gap grows to about $65 on the same deposit. Most online savings accounts and CDs compound daily, while some traditional banks compound monthly or quarterly. When comparing accounts, the APY already accounts for compounding frequency, making it the most reliable metric for comparison.

What Is a Good APY for Savings in 2026?

As of 2026, competitive high-yield savings accounts offer APYs between 4.00% and 5.25%, depending on the institution and current Federal Reserve interest rate environment. Online banks typically offer higher APYs than traditional brick-and-mortar banks because they have lower overhead costs. CDs generally offer slightly higher rates for locking your money in for a fixed term, with 12-month CDs ranging from 4.25% to 5.50%. Money market accounts fall somewhere between savings and CDs, offering competitive rates with more flexible access. To maximize your returns, compare APYs across multiple institutions, consider CDs for money you will not need short-term, and watch for promotional rates that may decrease after an introductory period.