ALLEXCEPT is a DAX function that removes all filter context from a table except the columns you specify. It is used for percentage-of-parent calculations, running totals that ignore some slicers, and measures that need to stay partially filtered. This guide covers syntax, examples, and when to use ALLEXCEPT vs ALL or ALLSELECTED.
Key Facts
- ALLEXCEPT syntax: ALLEXCEPT(<table>, <column1>, [<column2>, …])
- Removes all filters from a table — except the columns you list.
- Most common use: percentage-of-parent totals (e.g., % of category total).
- Use ALLEXCEPT inside CALCULATE or DIVIDE for controlled filter removal.
- EPC Group: 29 years Microsoft consulting. Founder Errin O'Connor authored the bestselling Microsoft Press Power BI book.
Power BI ALLEXCEPT Function Guide
Power BI ALLEXCEPT Function: DAX Guide with Examples
ALLEXCEPT is a DAX function that removes all filter context from a table except the columns you specify. It is used for percentage-of-parent calculations, running totals that ignore some slicers, and measures that need to stay partially filtered. This guide covers syntax, examples, and when to use ALLEXCEPT vs ALL or ALLSELECTED.
Key facts
- ALLEXCEPT syntax:
ALLEXCEPT(<table>, <column1>, [<column2>, …]) - Removes all filters from a table — except the columns you list.
- Most common use: percentage-of-parent totals (e.g., % of category total).
- Use ALLEXCEPT inside CALCULATE or DIVIDE for controlled filter removal.
- EPC Group: 29 years Microsoft consulting. Founder Errin O'Connor authored the bestselling Microsoft Press Power BI book.
ALLEXCEPT syntax
ALLEXCEPT takes a table and one or more columns to keep filtered. All other filters on the table are removed.
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