How to Compare Dates in Power BI

Updated on:

May 12, 2026

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Use this interactive demo to learn how to compare and filter dates using custom columns in Power BI.

Quick summary

This tutorial shows how to compare dates in Power BI using the Power Query Editor and a custom column formula. You will learn to filter rows based on date conditions, such as identifying records where a date is greater than today.

Steps

Click Transform data from the Home tab to open the Power Query Editor.
In the Power Query Editor, click Add Column.
Choose Custom Column from the Add Column menu.
Add the custom column formula in the empty formula field.
Click OK to apply the formula and create the new column.
Use the steps to filter rows where the date is greater than today.
Click the File menu and select Close & Apply to save your changes and return to the report.

📌 Why this matters

Comparing dates in Power BI is a critical skill for analysts who need to build dynamic, time-aware reports. Using the Power Query Editor's custom column feature, users can write flexible date comparison formulas that automatically filter data relative to today's date. This approach eliminates manual data updates and ensures dashboards always reflect current, accurate date logic. Mastering date comparison in Power BI helps teams make faster, data-driven decisions without relying on static date values.

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