// Methods
/// <summary>
/// Adds a new tax rate
/// </summary>
/// <param name="taxRate">Tax rate to add</param>
public void AddTaxRate(TaxRate taxRate)
{
TaxRates.Add(taxRate);
SortTaxRates();
}
/// <summary>
/// Removes a tax rate
/// </summary>
/// <param name="taxRate">Tax rate to remove</param>
public void RemoveTaxRate(TaxRate taxRate)
{
TaxRates.Remove(taxRate);
SortTaxRates();
}
static void Main(string[] args)
{
// create tax rates using object initialization syntax
// as the Rate and ChargeableIncome are exposed as public properties
// Passing a rate that is not a valid percentage will throw an exception
List <TaxRate> taxRates = new List <TaxRate>
{
new TaxRate
{
Rate = 0,
ChargeableIncome = 288
},
new TaxRate
{
Rate = 5,
ChargeableIncome = 100,
},
new TaxRate
{
Rate = 17.5,
ChargeableIncome = 3000,
},
new TaxRate
{
Rate = 10,
ChargeableIncome = 140,
},
};
// create an instance of the PAYECalculator with the tax rates
// NOTE: The constructor will throw an exception if tax rates is empty
PAYECalculator calc = new PAYECalculator(taxRates);
// The PAYECalculator provides you with a sort method to sort the
// tax rates in ascending order incase your tax rates where not arrange so
// it does this using the chargeable income
calc.SortTaxRates();
// The PAYECalculator contains an add method that allows you to add a new tax rate
calc.AddTaxRate(new TaxRate(25, 16472));
calc.AddTaxRate(new TaxRate(30, 20000));
// you can also create a tax rate directly with the constructor
var taxRate = new TaxRate(35, 30000);
// you can update the values too
taxRate.Rate = 55;
taxRate.ChargeableIncome = 40000;
// add the tax rate
calc.AddTaxRate(taxRate);
// It also contains a method to allow you to remove a tax rate
calc.RemoveTaxRate(taxRate);
// NB: The add and remove tax rate method calls the sort function
// whenever an item is added or removed
// finally, the PAYECalculator class contains a function that uses
// the tax rates provided to calculate the PAYE, this function accepts
// the taxable income, that is after all deductions have been done
// including SSNIT
var taxableIncome = 37800.00M;
var PAYE = calc.CalculatePAYE(taxableIncome);
Console.WriteLine($"PAYE of Taxable Income {taxableIncome} is {PAYE}");
}
