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## Get last 3 months with DAX

Hi all,

I want to filter a table by Table[latest_send_date] where this column only contains dates from the last 3 months. In another table I want to apply the same filter but then these months 1 year ago. Anyone have an idea how to do this in DAX? Don't get it done..

Thanks!

1 ACCEPTED SOLUTION
Community Support

Hi @Oos

1. I 'd like to suggest you use the slicer rather than Dax to achieve this:

2. Alternatively, you can use the DAX formula as below:(Create a calendar table and manage the relationship with your fact table)

``value in last 3 months this year = CALCULATE(MAX('Table 4'[Value]),FILTER('Table 4',[Date].[MonthNo]>=MONTH(TODAY())-3&&[Date].[Year]=YEAR(TODAY())))``

``value in last 3 months last year = CALCULATE(MAX('Table 4'[Value]),FILTER('Table 4',[Date].[MonthNo]>=MONTH(TODAY())-3&&[Date].[Year]=YEAR(TODAY())-1))``

Community Support Team _ Dina Ye
If this post helps, then please consider Accept it as the solution to help the other members find it more
quickly.
3 REPLIES 3
Community Support

Hi @Oos

1. I 'd like to suggest you use the slicer rather than Dax to achieve this:

2. Alternatively, you can use the DAX formula as below:(Create a calendar table and manage the relationship with your fact table)

``value in last 3 months this year = CALCULATE(MAX('Table 4'[Value]),FILTER('Table 4',[Date].[MonthNo]>=MONTH(TODAY())-3&&[Date].[Year]=YEAR(TODAY())))``

``value in last 3 months last year = CALCULATE(MAX('Table 4'[Value]),FILTER('Table 4',[Date].[MonthNo]>=MONTH(TODAY())-3&&[Date].[Year]=YEAR(TODAY())-1))``

Community Support Team _ Dina Ye
If this post helps, then please consider Accept it as the solution to help the other members find it more
quickly.

How did you build that slicer with "Last" and designating number of months?  Is that a non-standard slicer?  Thanks

Community Champion

Hi @Oos

The below article describes how to create a calendar table / date dimension, that will allow you to achieve your requirement.

https://community.powerbi.com/t5/Community-Blog/Relative-Date-Dimension/ba-p/779039

Best Regards,
Mariusz

If this post helps, then please consider Accepting it as the solution.

Please feel free to connect with me.

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