Power Query Calculate The Following 10th of The Month

Calculating the following 10th of the month is a common requirement in data analysis and reporting. This guide explains how to perform this calculation using Power Query in Excel, including the formula, practical examples, and frequently asked questions.

What is the Following 10th of the Month?

The following 10th of the month refers to the 10th day of the subsequent month after a given date. This calculation is useful for scheduling, reporting, and data analysis tasks where you need to reference a specific day in the next month.

For example, if today is June 15, 2023, the following 10th of the month would be July 10, 2023. This calculation accounts for varying month lengths and leap years.

How to Calculate It in Power Query

Power Query provides powerful tools for date calculations. Here's how to calculate the following 10th of the month:

Open your Excel workbook and go to the Data tab.
Click "Get Data" and select "From Table/Range" to import your data.
In the Power Query Editor, select the column containing your dates.
Go to the "Add Column" tab and select "Custom Column".
Enter the following formula in the formula bar:

Date.AddMonths([YourDateColumn], 1) > Date.Day([YourDateColumn])

This formula adds one month to the original date and then checks if the day is after the 10th. If not, it adjusts to the 10th of the next month.

Note: This calculation assumes you want the 10th of the next month if the current date is before the 10th. If you need different logic, adjust the formula accordingly.

The Formula Explained

The core formula for calculating the following 10th of the month in Power Query is:

Date.AddMonths([DateColumn], 1) > Date.Day([DateColumn])

This formula works by:

Taking the original date from your data column
Adding one month to that date
Checking if the day of the original date is after the 10th
Returning the 10th of the next month if the condition is met

The formula automatically handles month-end dates and varying month lengths.

Worked Examples

Here are some examples of how the calculation works with different input dates:

Input Date	Following 10th of the Month	Explanation
June 5, 2023	July 10, 2023	Since 5 is before the 10th, we take the 10th of the next month
June 15, 2023	July 10, 2023	Same logic applies regardless of the day after the 10th
January 31, 2023	March 10, 2023	February has fewer days, so we correctly jump to March
February 28, 2023	March 10, 2023	Handles non-leap years correctly
February 28, 2024	March 10, 2024	Handles leap years correctly

FAQ

What if I want the 10th of the current month if the date is before the 10th?: You would need to modify the formula to return the current month's 10th if the day is before the 10th. The exact formula would depend on your specific requirements.
Does this calculation work with leap years?: Yes, the formula automatically handles leap years by correctly calculating the number of days in February.
Can I use this formula with a different day than the 10th?: Yes, you can easily modify the formula to use any day number by changing the "10" in the formula to your desired day.
What if my date column contains blank or invalid dates?: The formula will return errors for invalid dates. You may want to add error handling to your Power Query to manage these cases appropriately.
Is there a way to calculate this without using Power Query?: Yes, you could use Excel formulas like DATE, DAY, and MONTH functions, but Power Query provides more flexibility and efficiency for large datasets.