Dynamic tax calculator

[Roofasa]

OK, this is starting to make sense. Another question I have, say income is greater than 65k, my final break point, (at which point everything above 65k is charged at a fixed %). Should I just add another scenario to my if statement?

for i = array1 to array 2
     if (i)= 1 then
           totaltax=array1*array2
     Elseif (i)> 1 and income < array1(i)
           totaltax=totaltax+((arrBreakPoint(i)-arrBreakPoint(i-1))*arrTaxPct(i))
     Else 
           totalTax=totalTax+((income-arrBreakPoint(i))*arrTaxPct(i))
     End If
Next i

Also your last two lines of code make sense, and I understand why I need them. But I'm a little confused as to where I would put them? Should I determine if income < 15k before starting my for loop?