Question: What is the opposite of EOMONTH()? I am trying to find the beginning date of 12 months ago. Would it be EOMONTH(Current Date,12)-1?

Any direction would be great. TIA

Answer: 
To find the beginning of a month, go to the end of the month before and add a date to it (not sure if I understand the question)

```
Start of month one year ago = EOMONTH(TODAY(),-13)+1

```
In DAX, you could also use

```
= DATE(YEAR(Dates[Date])-1, MONTH(Dates[Date]), 1)

```

This backs up one year, keeps the month, and returns the first day of that month.