Excel ISERR Function

This post will guide you how to use Excel ISERR function with syntax and examples in Microsoft excel.


The Excel ISERR function returns TRUE if the value is any error value except #N/A.

The ISERR function is a build-in function in Microsoft Excel and it is categorized as an Information Function.

The ISERR function is available in Excel 2016, Excel 2013, Excel 2010, Excel 2007, Excel 2003, Excel XP, Excel 2000, Excel 2011 for Mac.


The syntax of the ISERR function is as below:

= ISERR (value)

Where the ISERR function argument is:

  • Value -This is a required argument. The value that you want to test.


The below examples will show you how to use Excel ISERR Function to test if the value is any of error values(except #N/A), if so, return TRUE.

#1 = ISERR (B1)

excel iserr function example


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