Issues Calculating Offset Calendar

Hi, UnknownUser1702 

Based on your information, I create a sample table:

Then create calculated columns, here is the following DAX:

AdjustedYear current = 
VAR CurrentYear = YEAR('Date'[Date])
VAR CurrentMonth = MONTH('Date'[Date])
VAR AdjustedYear = 
    IF(
        MAX('Account'[Custom_Fiscal_Year]) = "Current Year",
        IF(CurrentMonth >= MAX('Account'[Custom_Start_Month]), CurrentYear + 1, CurrentYear),
        IF(CurrentMonth >= MAX('Account'[Custom_Start_Month]), CurrentYear, CurrentYear - 1)
        
    )
RETURN AdjustedYear

AdjustedYear next = 
VAR CurrentYear = YEAR('Date'[Date])
VAR CurrentMonth = MONTH('Date'[Date])
VAR AdjustedYear = 
    IF(
        MAX('Account'[Custom_Fiscal_Year]) = "Next Year",
        IF(CurrentMonth >= MIN('Account'[Custom_Start_Month]), CurrentYear + 1, CurrentYear),
        IF(CurrentMonth >= MIN('Account'[Custom_Start_Month]), CurrentYear, CurrentYear - 1)
        
    )
RETURN AdjustedYear

I've created a few other calculated columns to compare, such as the largest start month, and so on. Here is my preview:

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Yongkang Hua

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