How to discover financial Year based on current datetime?

Question

I need a financial year based on current or today's datetime.

Suppose if we consider today's date is 10 April 2011, then i need the outputs as Financial Year 2012 and for some cases i need to display the same output in short format as FY12. Both ways i want to display.

In our requirement financial Year considered is from April (the current year) to March (following year).

Based on current datetime...the scenario of output is depends on the current datetime falls in the below said period or duration.

From 01April2011 to 31March2012 - Financial Year 2012 or FY2012
From 01April2012 to 31March2013 -  Financial Year 2013 or FY2013
From 01April2013 to 31March2014 -  Financial Year 2014 or FY2014
.
.
.

so on....

Another example: If we take today's datetime as 16April2012, then the output is needed as Financial Year 2013 and also FY13.

Please help how to acheive the same in very short format using LINQ or Regex in C#, .Net3.5

Fruitarian

What has this got to do with LINQ and Regex, won't simple if else work for you ? – Pears

Answer 1

A couple of Extension methods

public static class DateTimeExtensions
{
    public static string ToFinancialYear(this DateTime dateTime)
    {
        return "Financial Year " + (dateTime.Month >= 4 ? dateTime.Year + 1 : dateTime.Year);
    }

    public static string ToFinancialYearShort(this DateTime dateTime)
    {
        return "FY" + (dateTime.Month >= 4 ? dateTime.AddYears(1).ToString("yy") : dateTime.ToString("yy"));
    }
}

Lucrative

Answer 2

I've done the before by creating a FinancialYear class:

public class FinancialYear
{
    int yearNumber;
    private static readonly int firstMonthInYear = 4;

    public static FinancialYear Current
    {
        get { return new FinancialYear(DateTime.Today); }
    }

    public FinancialYear(DateTime forDate) 
    {
         if (forDate.Month < firstMonthInYear) {
             yearNumber = forDate.Year + 1;
         }
         else {
             yearNumber = forDate.Year;
         }
    }

    public override string ToString() {
        return yearNumber.ToString();
    }
}

Other points:

• Have a look at IFormatProvider to see how you can customize formatting (you could provide an overload of ToString that takes a format argument like DateTime does.
• override Equals, and implement IEquitable to provide equality.
• Implement IComparable to give comarisons.
• You could also implement your own == < > >= and <= operators for the class.

Extenuate

Answer 3

Where the financial year is variable (e.g. a company financial year may run July > June rather than follow April > March tax year)

/// <summary>
/// Extension method to get the start of the financial year
/// </summary>    
public static DateTime GetStartOfFinancialYear(this DateTime date, int startMonthOfFinancialYear)
{
    if (startMonthOfFinancialYear < 1 || startMonthOfFinancialYear > 12)
        throw new ArgumentException("Must be between 1 and 12","startMonthOfFinancialYear");

    DateTime rtn = new DateTime(date.Year,startMonthOfFinancialYear,1);
    if (date.Month < startMonthOfFinancialYear)
    {
        // Current FY starts last year - e.g. given April to March FY then 1st Feb 2013 FY starts 1st April 20*12*
        rtn = rtn.AddYears(-1);
    }

    return rtn;
}

// Example, Financial Year starts in July
DateTime startFY = DateTime.Now.GetStartOfFinancialYear(7);
DateTime endFY = startFY.AddYears(1).AddDays(-1);

Bostow

The endFY in this code is going to be wrong by almost a whole day. The end of the financial year would be startFY.AddYears(1).AddTicks(-1) to get 23:59:59.9999999... your code is going to give the start of the last day of the financial year not the end of it – Conformance

Answer 4

To improve on Russ' answer above, I would suggest:

• consolidate 2 extension methods into 1 - common addition logic
• add arguments for Short/Long and the month (some need Oct instead of April)
• add default values
• leave out the "Financial Year" because some might use "Fiscal Year"

public static string ToFYString(this DateTime dateTime, bool longFlag = false, int monthLimit = 3)
{
   var format = longFlag ? "yyyy" : "yy";
   return (dateTime.Month > monthLimit ? dateTime.AddYears(1).ToString(format) : dateTime.ToString(format));
}

1. if april is your new FY, and you want short, use .ToFYString()
2. if october is your new FY and you want short use .ToFYString(monthLimit: 9)
3. if april is your new FY, and you want long, use .ToFYString(true)
4. if october is your new FY, and you want long, use .ToFYString(true, 9)

Maypole

Answer 5

Try the bellow code to get the Financial year or the period value.

public int GetFinancialYear(DateTime date)
{
    return date.Month > 6 ? date.Year + 1 : date.Year;
}

public int GetFinancialPeriod(DateTime date)
{
    return date.Month > 6 ? date.Month - 6 : date.Month + 6;
}

Spectra

Answer 6

I am not sure why you would need LINQ but won't something like this suffice

DateTime today = DateTime.Today;
if(today.Month <= 3)
       make this string "Financial Year " + today.ToString("yy")); // OR yyyy for 2013
else 
       "Financial Year " + today.AddYears(1).ToString("yy"));

Pears

Answer 7

public class FinancialYear
{
    public YearRepresentation ResolveFinancialYear(DateTime currentDate)
    {
        YearRepresentation financialYear = new YearRepresentation();
        int year = (currentDate.Month >= 4) ? currentDate.AddYears(1).Year : currentDate.Year;
        financialYear.SetYear(year);

        return financialYear;
    }
}

public class YearRepresentation
{
    public string LongYear { get; set; }

    public string ShortYear { get; set; }

    public void SetYear(int year)
    {
        this.LongYear = "Financial Year " + year;
        this.ShortYear = "FY " + year;
    }
}

Troll

Answer 8

This an example for finding current financial year.

        string FinYear=null;

        if (DateTime.Today.Month > 3)
        {

            FinYear = "1/4/" + DateTime.Today.Year;
        }

        else
        {
            FinYear = "1/4/" + (DateTime.Today.Year - 1);
        }

Pharmacopsychosis

Answer 9

Here used Valued Tuple (Finacial year start from July so, I used 7. If you want

Month-year to Month-year

the format then just need to use month and Year Property of start date and End Date.

public  static (DateTime, DateTime) GetCurrentFinacialYearDateRange()
    {
        if(DateTime.Now.Month >= 7)
        {
            DateTime startDate = new DateTime(DateTime.Today.Year, 7, 1); // 1st July this year
            DateTime endDate = new DateTime(DateTime.Today.Year + 1, 7, 1).AddDays(-1); // Last day in June next year
            return (startDate, endDate);
        }
        else
        {
            DateTime startDate = new DateTime(DateTime.Today.Year-1, 7, 1); // 1st July this year
            DateTime endDate = new DateTime(DateTime.Today.Year, 7, 1).AddDays(-1); // Last day in June next year
            return (startDate, endDate);
        }
        
    }

Ceram

How does this answer the question? – Thrash