A tax calculator which calculates tax depending on income for the year ending 30 June 2011.

taxcalculator

% Basic Tay Payable Calculator for 2011
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%                         ___________________________
% input income    --->   |calc tax, medicare and lio | -----> output tax
%                        |___________________________|
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clear
clc
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%outline 1:
income = input('Please enter your income for the year 2011 ending June 30:  ');
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%outline 2: Calculates the tax dependent on your income
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if income < 6000;
    taxable = 0;
    
elseif income < 37000;
    taxable = (income - 6000)*0.15;
    
elseif income < 80000 ;
    taxable = (income - 37000)*0.30 + 4650;
    
elseif income < 180000;
    taxable = (income - 80000)*0.37 + 17550;
    
elseif income >= 180000;
    taxable = (income - 180000)*0.45 + 54550;
    
else
    disp('Invalid income for the year 2011 entered, please enter a valid income. (Not negative)')
    
end

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%outline 3: calculates the medicare levy tax
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if income < 18839;
    medicare = 0;
    
elseif income < 22163;
    medicare = 0.10 * (income - 18840);
    
elseif income > 22163 ;
    medicare = 0.015 * income;
    
else disp('Invalid income for the year 2011 entered, please enter a valid income . (Not negative)')
    
end

% calculates the totaltax without low income offset
totaltax = taxable + medicare;

% calculates the low income offset
if income < 30000;
    %
    if totaltax <= 1500;
        lowincome = totaltax ;
        
    elseif totaltax > 1500;
        lowincome = 1500;
    end
        
else income > 30000;
    lowincome = 0;
end
    
%updates the totaltax to include low income offset    
totaltax = totaltax - lowincome;
disp('The total tax required to be payed is: ')    
disp(totaltax)