In order to create report accuracy based on Power BI DAX and fiscal year period, you will need to make modifications to time intelligence calculations on how your organization makes use of the budgetary calendar. Here are some advanced techniques and best practices:
Create A Fiscal Calendar Table: First of all, create a calendar table in Power BI with fiscal year, fiscal quarter, and budgetary month columns. You can do this either in Power Query or DAX, with the only important issue being to consider the beginning of your fiscal year, e.g., July 1. Let the calendar table with the financial year be at the center of any calculations that relate to dates.
Use Custom DAX Measures: Rather than using standard time intelligence functions, which are for a typical calendar year, create standard DAX measures. For E.g. In case of Year to Date (YTD), such a formula will be applicable:
FiscalYTD =
CALCULATE(
SUM(Sales[Amount]),
DATESBETWEEN(
Calendar[Date],
DATE(YEAR(MAX(Calendar[Date])) - IF(MONTH(MAX(Calendar[Date])) < 7, 1, 0), 7, 1),
MAX(Calendar[Date]) )
)
Fiscally born individuals are expected to shift the commencement date (in this case, 1 July) according to their financial years.
Employ Fiscal Columns for Filtering and Grouping. Purposes: Implement the financial year and the financial quarter columns from your calendar table in slicers and visualizations. This keeps the fiscal quarters and periods in the reports and visuals specific to them and does not default to calendar quarters and periods.
Coping with Aggregations in more than one Financial Year: In the case of rolling totals in different financial years, relate the periods for which the roll-up is taken to each other using DAX functions such as DATESINPERIOD or CALCULATE in conjunction with FILTER to change the date ranges accordingly. For e.g:
FiscalRolling12Months =
CALCULATE(
SUM(Sales[Amount]),
DATESINPERIOD(Calendar[Date], MAX(Calendar[Date]), -12, MONTH)
)
Confirm Using Evaluation Metrics: Apply your measurements to example data to check their consistency with financial periods. YTD, QTD, and rolling totals are checked against known figures in the source system or calculated manually to validate correctness.
These methods will assist you in generating accurate reporting for any given fiscal year, allowing proper performance monitoring and management.