internal virtual Decimal GetStandardDeduction(FilingStatus filingStatus)
{
return
(StandardDeductions
.Where(d => d.FilingStatus == filingStatus)
.Select(d => d.Amount)
.Single());
}
internal virtual Decimal GetStandardDeduction(FilingStatus filingStatus, Decimal annualWages)
{
var standardDeduction = StandardDeductions
.Where(x => x.FilingStatus == filingStatus)
.First(x => x.FloorAmount <= annualWages && x.CeilingAmount > annualWages);
if (standardDeduction.CalcValue > 0.00m)
{
return(1 - (Math.Round(((annualWages - standardDeduction.FloorAmount) / standardDeduction.CalcValue), 4)) * standardDeduction.Amount);
}
else
{
return(standardDeduction.Amount);
}
}
internal virtual Decimal GetStandardDeduction(FilingStatus filingStatus, decimal grossWages)
{
var sd =
StandardDeductions
.Where(d => d.FilingStatus == filingStatus)
.FirstOrDefault(d => d.Floor <= grossWages && d.Ceiling > grossWages);
if (sd.Increment > 0.00m)
{
return(sd.Amount - ((int)((grossWages - sd.Floor) / sd.IncrementDivisor) * sd.Increment));
}
else
{
return(sd.Amount);
}
}
protected virtual Decimal GetStandardDeduction(FilingStatus filingStatus, decimal wages)
{
var deduction =
StandardDeductions
.Where(d => d.FilingStatus == filingStatus)
.Where(d => d.StartingAmount <= wages && wages < d.MaximumWage)
.Select(d => d)
.Single();
if (deduction.Percentage > Decimal.Zero)
{
return(deduction.Amount - (deduction.Percentage * (wages - deduction.StartingAmount)));
}
else
{
return(deduction.Amount);
}
}
protected virtual Decimal GetStandardDeduction(FilingStatus filingStatus, int personalAllowances, decimal annualWage)
{
if (filingStatus == FilingStatus.Single)
{
return(StandardDeductions
.Where(d => d.FilingStatus == filingStatus)
.Where(d => d.MinAllowance <= personalAllowances && d.MaxAllowance > personalAllowances)
.Select(d => d.Amount)
.Single());
}
else
{
return
(StandardDeductions
.Where(d => d.FilingStatus == FilingStatus.Married)
.Select(d => d.Amount)
.Single());
}
}
