public double GetTaxAmountPayable(double incomeAmount, short yourage, double RaAmount = 0, bool annual = true, MedicalDetails medicaldetails = null)
{
//double taxpayable = 0;
//double basetax;
//double incomeAmountAboveThreshold;
//double primaryrebate = Helpers.GetPrimaryRebate(yourage);
//double effectiveTaxableIncome;
//medicalTaxCreditRebate = medicaldetails != null ? Helpers.GetMedicalTaxRebate(medicaldetails, annual) : 0;
////List of the lower & upper limits, base tax and percentage of taxation
//var incomeBands = Helpers.GetIncomeRanges();
////User selected Annual (default)
//if (annual)
//{
// effectiveTaxableIncome = incomeAmount - primaryrebate - medicalTaxCreditRebate;
// effectiveTaxableIncome = effectiveTaxableIncome - RaAmount;
// for (int i = 0; i < incomeBands.Count; i++)
// {
// if (effectiveTaxableIncome.IsBetween(incomeBands[i].Item1, incomeBands[i].Item2))
// {
// incomeAmountAboveThreshold = effectiveTaxableIncome - (incomeBands[i].Item1 - 1);
// basetax = incomeBands[i].Item3;
// taxpayable = basetax + (incomeAmountAboveThreshold * incomeBands[i].Item4);
// }
// }
//}
//else
//{
// //Medicaltaxrebates are not considered for monthly calculations
// effectiveTaxableIncome = incomeAmount - (primaryrebate / 12);
// effectiveTaxableIncome = effectiveTaxableIncome - RaAmount;
// for (int i = 0; i < incomeBands.Count; i++)
// {
// if (effectiveTaxableIncome.IsBetween(incomeBands[i].Item1 / 12, incomeBands[i].Item2 / 12))
// {
// incomeAmountAboveThreshold = effectiveTaxableIncome - ((incomeBands[i].Item1 / 12) - 1);
// basetax = incomeBands[i].Item3 / 12;
// taxpayable = basetax + (incomeAmountAboveThreshold * incomeBands[i].Item4);
// }
// }
//}
//return taxpayable;
return(0);
}
/// <summary>
/// Uses Struct Helper instead of Tuple. Uses Named properties so more readable
/// </summary>
/// <param name="incomeAmount"></param>
/// <param name="yourage"></param>
/// <param name="RaAmount"></param>
/// <param name="annual"></param>
/// <param name="medicaldetails"></param>
/// <returns></returns>
public decimal GetTaxAmountPayableStruct(decimal incomeAmount, short yourage, decimal RaAmount = 0, bool annual = true, MedicalDetails medicaldetails = null)
{
decimal taxpayable = 0;
decimal basetax;
decimal incomeAmountAboveThreshold;
decimal primaryrebate = Helpers.GetPrimaryRebate(yourage);
decimal effectiveTaxableIncome;
medicalTaxCreditRebate = medicaldetails != null?Helpers.GetMedicalTaxRebate(medicaldetails, annual) : 0;
//List of the lower & upper limits, base tax and percentage of taxation
var incomeBands = Helpers.GetIncomeRangesStruct();
//User selected Annual (default)
if (annual)
{
effectiveTaxableIncome = incomeAmount - primaryrebate - medicalTaxCreditRebate;
effectiveTaxableIncome = RaAmount > 0 ? (effectiveTaxableIncome - RaAmount) : effectiveTaxableIncome;
for (int i = 0; i < incomeBands.Count; i++)
{
if (effectiveTaxableIncome.IsBetween(incomeBands[i].LowerLimit, incomeBands[i].UpperLimit))
{
incomeAmountAboveThreshold = effectiveTaxableIncome - (incomeBands[i].LowerLimit - 1);
basetax = incomeBands[i].BaseTaxAmount;
taxpayable = basetax + (incomeAmountAboveThreshold * incomeBands[i].TaxRate);
}
}
}
else
{
//Medicaltaxrebates and Primary rebates are not considered for monthly calculations
effectiveTaxableIncome = incomeAmount;// - (primaryrebate / 12);
effectiveTaxableIncome = RaAmount > 0 ? (effectiveTaxableIncome - RaAmount) : effectiveTaxableIncome;
for (int i = 0; i < incomeBands.Count; i++)
{
if (effectiveTaxableIncome.IsBetween(incomeBands[i].LowerLimit / 12, incomeBands[i].UpperLimit / 12))
{
incomeAmountAboveThreshold = effectiveTaxableIncome - ((incomeBands[i].LowerLimit / 12) - 1);
basetax = incomeBands[i].BaseTaxAmount / 12;
decimal taxrate = incomeBands[i].TaxRate;
taxpayable = basetax + (incomeAmountAboveThreshold * taxrate);
}
}
}
return(taxpayable);
}
internal static decimal GetMedicalTaxRebate(MedicalDetails medicaldetails, bool isAnnual = false)
{
decimal rebateamount = (decimal)MedicalRebate(medicaldetails.HaveMedicalAid, medicaldetails.Dependants);
return(isAnnual ? rebateamount * 12 : rebateamount);
}
