Excel INTRATE Function: Syntax, Examples & Tips

The INTRATE function calculates the annual interest rate of an investment based on settlement, maturity, investment, and redemption values.
Excel
=INTRATE(settlement, maturity, investment, redemption, [basis])

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On this page
  1. Parameters
  2. What is an INTRATE Formula in Excel?
  3. A Practical Example
  4. INTRATE Formula
  5. Result of the Formula
  6. Why Use INTRATE?
  7. Key Takeaways:
  8. Example use case

Parameters

settlement:
The date on which the investment is made. This is the date when the security is purchased.

maturity:
The date on which the investment matures. This is the date when the security expires or is redeemed.

investment:
The amount of money invested in the security. This is the principal amount that is used to calculate the interest rate.

redemption:
The amount of money received at maturity. This is the total amount that will be received when the security matures.

[basis]:
An optional parameter that specifies the day count basis to use for the calculation. If omitted, Excel uses the default basis of 0 (US (NASD) 30/360).

What is an INTRATE Formula in Excel?

The INTRATE function in Excel is a financial tool that calculates the interest rate for a fully invested security. It is particularly useful for determining the annualized interest rate of a security based on its price, redemption value, and the number of days until maturity.

In simpler terms, the INTRATE function helps you assess the profitability of an investment by providing the interest rate based on its current price and expected future value.

A Practical Example

Imagine you are evaluating a short-term investment in a bond, and you have the following data in an Excel spreadsheet:

Bond Data Table:

Investment PriceRedemption ValueDays to Maturity
950100030

You want to find the annualized interest rate for this bond.

INTRATE Formula

To calculate the interest rate for the bond, you would use the INTRATE formula as follows:

Excel
=INTRATE(A2, B2, C2)

Breakdown of the Formula:

  • A2: This is the investment price of the bond.
  • B2: This is the redemption value of the bond.
  • C2: This is the number of days until the bond matures.

Result of the Formula

When you apply the formula, it calculates the annualized interest rate based on the provided data. The output would be:

Annualized Interest Rate
0.0513

Here, the annualized interest rate is calculated based on the bond's investment price of 950, redemption value of 1000, and 30 days to maturity.

Why Use INTRATE?

The INTRATE function is particularly useful when you need to evaluate the profitability of short-term investments or securities. It allows you to quickly determine the interest rate, helping you make informed investment decisions.

Key Takeaways:

  • INTRATE: Calculates the interest rate for a fully invested security based on its price and redemption value.
  • Investment Evaluation: Helps you assess the profitability of short-term investments.
  • Common Use Cases: Ideal for bond analysis, short-term securities, and any scenario where you need to determine interest rates for investments.

Understanding how to use the INTRATE function can significantly enhance your financial analysis capabilities in Excel, enabling you to make better investment decisions.

Happy calculating!

Example use case

You have a table where Column A contains the issue date of a series of loans, Column B contains the maturity date, Column C contains the loan amount, and Column D contains the total interest paid at maturity. You can use the INTRATE function to calculate the interest rate for each loan based on these values. This allows for efficient assessment of loan profitability and helps in making informed decisions regarding future lending strategies without the complexity of more advanced financial calculations.

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