How to Calculate the Expiration Date with an Excel Formula – 3 Steps

The sample dataset showcases Club members’ Names and the Starting Day.

To calculate the expiration date of their Monthly Payment:


Step 1 – Apply the EOMONTH Function to Get the Last Day of the Month

  • Choose a cell to enter the formula. Here, D5.
=EOMONTH(C5,1)+0

Apply EOMONTH Function to Get the Last Day of the Month

  • Press Enter to see the expiration date for the monthly payment.
  • Drag down the Fill Handle to fill the rest of the cells.

This is the output.

Apply EOMONTH Function to Get the Last Day of the Month

Read More: Excel Calculates Difference Between Two Dates in Days


Step 2 – Add Days to a Date to Calculate Expiry Date

The membership is renewed after every 45 days.

  • Select E5 and use the formula.
=C5+45

 Add Days with Date to Calculate the Expiry Date

  • Press Enter to see the expiration date for the monthly payment.
  • Drag down the Fill Handle to fill the rest of the cells.

This is the output.

 Add Days with Date to Calculate the Expiry Date

Read More: Excel Formula to Calculate Number of Days Between Today and Another Date


Step 3 – Combine the DATE, YEAR, MONTH, and DAY Functions to Calculate the Final Output

  • Select F5 and enter the formula.
=DATE(YEAR(C5)+1,MONTH(C5),DAY(C5))
  • The DATE function will create a valid date from a given date.
  • The YEAR function will calculate the year from the provided date in the string.
  • The MONTH function will return the month portion from a date.
  • The DAY function extracts the sequential date within a string.

Combine the Date, Year, Month, and Day Functions to Calculate the Final Output

  • Press Enter to see the expiration date.
  • Drag down the Fill Handle to fill the rest of the cells.

This is the output.

This is the final output.

Combine the Date, Year, Month, and Day Functions to Calculate the Final Output

Read More: Calculate Number of Days between Two Dates with VBA in Excel


Things to Remember

  • Cells must be in date format. Press Ctrl+1 and choose Date.

Download Practice Workbook

Download the practice workbook.


 

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Wasim Akram
Wasim Akram

Wasim Akram holds a BSc degree in Industrial and Production Engineering from Ahsanullah University of Science and Technology. Over the past 2 years, he has been actively contributing to the ExcelDemy project, where he has authored more than 150 articles. Now, he is working as an Excel VBA and Content Developer. He likes learning new things about Microsoft Office, especially Excel VBA, Power Query, Data Analysis, and Excel Statistics. He is also very interested in machine learning and... Read Full Bio

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