Summary

To get the same date next month from a given date, you can use the EDATE function.

In the example shown, the formula in cell B5 is:

=EDATE(B5,1)

Generic formula

=EDATE(date,1)

Explanation 

EDATE can get the "same date" in the future or past, based on the number of months supplied. When 1 is given for months, EDATE gets the same date next month.

Same date in previous month

To get the same date in a previous month, use -1:

=EDATE(date,-1) // prior month

Related functions

Excel EDATE function

EDATE Function

The Excel EDATE function returns a date on the same day of the month, n months in the past or future. You can use EDATE to calculate expiration dates, maturity dates, and other due dates. Use a positive value for months to get a date in the future, and a negative value for dates in the past.
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Dave Bruns

Hi - I'm Dave Bruns, and I run Exceljet with my wife, Lisa. Our goal is to help you work faster in Excel. We create short videos, and clear examples of formulas, functions, pivot tables, conditional formatting, and charts.

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