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

```
There is no straight opposite function for EOMONTH() in DAX. But you can still use EOMONTH() to get the first date of a month.

Last date of a month

```
= EOMONTH(Leaves[LeaveStart]

```

First date of a month

```
= EOMONTH(Leaves[LeaveStart],-1)+1

```

You can also just use 1 in place of date to get first day of a month, like:

```
= DATE(YEAR(Leaves[LeaveStart]), MONTH(Leaves[LeaveStart]), 1)

```

Please note that STARTOFMONTH() is opposite function for ENDOFMONTH() not for EOMONTH().