Question

Write a program, called NationalTax, that will simulate calculating a citizen's income tax for the year.

A country uses lettered ID's to identify its citizens. Valid ID's will be either 8 or 9 characters long. All characters entered will be alphabetic characters only (a-z or A-Z).

• Display a welcome message.
• Prompt the user for their ID and read it in.
• Next, determine if the ID is valid based on its length.
  • If it is not valid, simply state that the ID is invalid and let the program end naturally (you may NOT use System.exit).
  • However, if it is valid, then do the following:
    • Prompt the user for the tax year (entered as a four-digit integer). No validity check needs to happen here.
    • Prompt the user for their annual income (this includes dollars and cents) and read it in. Since no annual income can be less than zero, if the user enters a negative amount, simply convert it to its positive amount. You may not use if/else statements here. Use the appropriate Math library method.
    • Convert the ID to all CAPS.
    • Display the ID.
    • Display the annual income as dollars and cents.
    • Set the tax amount to be log₁₀ of their annual income multiplied by 100. Display this as their initial tax amount.
    • Then if the first character of the ID is in the range:
      • A - G, then the person works for the government. Reduce their tax by 10%. Display that they are a government employee, that they receive a 10% tax reduction, and display the new tax amount.
      • H - P, then the person works in the public sector. There is no tax reduction. Display they they are a public sector employee and that they receive no tax reduction.
      • Q - U, then the person is unemployed. Display that they are unemployed and that they receive no tax reduction.
      • Otherwise the person is retired. Reduce their tax by 25%. Display that they are retired, that they receive a 25% tax reduction, and display the new tax amount.
    • Then if the last character of the ID is greater than the first character:
      • the person is 21 years old or older. They pay an additional $100 in taxes. Add this to their current tax amount. Display that they are 21 years of age or older, that there is an additional $100 tax, and display the new tax amount.
      • Otherwise the person is less than 21 years old. There is no additional tax. Display that the are under 21 years of age and do not pay the additional tax.
    • Then if the ASCII value of the fifth letter (remember indexing starts at 0) of the ID (as a capital letter) is divisible by 7
      • that person is a millionaire. Their tax is the larger of the current tax amount and $15,000. Display that they are a millionaire, that their tax is the larger of their current tax amount (display the value) and $15,000, and display their new tax amount.
      • Otherwise they are not. Display nothing.
    • Then if the ID contains the string "MED" (remember case does not matter in the ID):
      • then they are a medical professional. Their tax is reduced by $100. Display that they are a medical profession, they their tax is reduced by 100, and display the new tax amount.  
      • Otherwise they are not. Display nothing.
    • Then if the final tax amount is negative, change it to 0.
    • Finally, in one printf statement, display a message that tells the user the ID, the tax year, their annual income, and their final tax amount owed.

Answer 1

The following is the python code for the requested scenario. I have checked all the test cases and it is working correctly. I have mentioned the comments in the code for better understanding.

ids = input("Please enter the id")
if(len(ids) > 9):
    print("ID invalid")
    exit()

tax_year = int(input("Enter the tax year"))
annual_income = float(input("Enter the annual income"))

#creating a positive annual income
annual_income = abs(annual_income)

#convert the income back to string to split it into a list
annual_income = str(annual_income)

#split the annual income into a list of dollars and cents
annual_income_list = annual_income.split(".")

#convert all the id letters to uppercase
ids = ids.upper()

print("The ID is " + ids)
print("The annual income is " + str(annual_income_list[0]) + " dollars and " + str(annual_income_list[1]) + " Cents")

#convert the annual income to float again
annual_income = float(annual_income)

#calculate initial tax
import math
initial_tax =  math.log10(int(annual_income)) * 100

print("The initial tax for your annual income is set to " + str(initial_tax))

# #split the id to get each letter as a list and save it in id_list
# id_list = ids.split()
# print(id_list)

#check for government employee i.e. A-G, retired employee etc.
if(ord(ids[0]) >= 65 and ord(ids[0]) <= 71):
    initial_tax = initial_tax - (1/10 * initial_tax)
    print("being a government employee, the tax has been reduced by 10%. The new tax is " + str(initial_tax))
    
elif(ord(ids[0]) >= 72 and ord(ids[0]) <= 80):
    print("You are a public sector employee, hence no tax deduction")
    
elif(ord(ids[0]) >= 81 and ord(ids[0]) <= 85):
    print("You are unemployed, hence no tax deduction")
    
else:
    initial_tax = initial_tax - (1/4 * initial_tax)
    print("being a retired employee, the tax has been reduced by 25%. The new tax is " + str(initial_tax))
    
#check for 21 years age and increase 100 dollars if ans is yes
if(ord(ids[0]) < ord(ids[len(ids) - 1])):
    initial_tax += 100
    print("being more than 20 years, the tax has been increased by $100. The new tax is " + str(initial_tax))

else:
    print("being less than 21 years, the tax will not be increased. The new tax is " + str(initial_tax))
    
#check for millionaire

if(ord(ids[5])%7 == 0):
    print("Your current tax is " + str(initial_tax))
    initial_tax = initial_tax + 15000
    print("being a millionaire, the tax will be increased by $15000. The new tax is " + str(initial_tax))
    
#check for medical professional

if "MED" in ids:
    initial_tax = initial_tax - 100
    print("being a medical professional, the tax will be reduced by $100. The new tax is " + str(initial_tax))

initial_tax = abs(initial_tax)

#display the final counts
print("For the user ID "+ ids+ " for the tax year "+ str(tax_year) + " and for the annual income of " + str(annual_income) + " the tax you have to pay is " + str(initial_tax))

You may notice that system.exit is used even though the question asked not to but the above program is not inside a function and hence cannot be exited without the use of exit. I did so because I do not know what python version you wanted.

Python 3 will take another syntax and python 2 another. Hence, I left it. All other things are same and works fine.