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Deposit Glossary

Annualized yield (APY)

A practical explanation of Annualized yield (APY), including what it means, how it is used, and why it matters in real savings decisions.

Definition

APY (Annual Percentage Yield) is an annual percentage yield that takes into account the impact of compounding calculations (such as monthly or weekly interest) to more accurately reflect the actual interest income you receive during the year. APY is the most intuitive interest comparison standard when comparing deposit products from different banks.

? Why Should You Understand Annualized yield (APY)？

If the product supports rolling interest back to the principal on a monthly, quarterly or yearly basis, APY is a better reflection of the real income level, especially suitable for long-term savings or compounding strategies.

Key Points for Understanding This Term

  • APY takes into account compounding frequency and is therefore generally higher than the Apr at the same nominal rate.
  • When comparing long-term deposit strategies, APY is more informative than purely nominal annual interest rates.
  • The more frequently the interest settles and rolls, the more pronounced the difference between APY and Apr is usually.

Related tools

Further Reading

Compound interest future value Annualized Rate of Return (Apr)

Related Questions

The higher the compounding frequency, the higher the APY?

Yes. If two products have the same nominal annual interest rate, but one is interest-bearing on a monthly basis and one is interest-bearing on an annual basis, the APY on a monthly basis will be higher. Theoretically, the frequency of interest calculation has changed from once a year to 365 times a day, and APY has the greatest room for improvement.

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Why look at APY and not just nominal rates

Because APY is a reflection of what you actually get. Especially for long-term deposits or strategies that choose to roll interest back to principal, APY can more accurately tell you how high the real income level is. Nominal interest rates are just the starting point.

How do I know if a product is using Apr or APY

This is usually clearly marked on your bank's app or webpage. If there is no callout, the preferred assumption is Apr (for conservative reasons). You can also look at the interest calculation rules of the product manual - there are detailed interest settlement dates and rollover rules, and the high probability is the product that tends to APY.

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