Figure out Virginia state and Federal tax based on income.

vataxcalc.py

#!/usr/bin/env python


# Federal and Virginia State Tax Calculator
# taxhandler.py

import sys

fedTax2012 = {}
fedTax2012["s"] = ((0,8699,0.1),(8700,35349,0.15),(35350,85649,0.25),(85650,178649,0.28),(178650,388349,0.33),(388350,900000000000,0.35))
fedTax2012["mfj"] = ((0,17399,0.1),(17400,70699,0.15),(70700,142699,0.25),(142700,217449,0.28),(217450,388349,0.33),(388350,900000000000,0.35))
fedTax2012["mfs"] = ((0,8699,0.1),(8700,35349,0.15),(35350,71349,0.25),(71350,108724,0.28),(108725,194174,0.33),(194175,900000000000,0.35))
fedTax2012["hoh"] = ((0,12399,0.1),(12400,47349,0.15),(47350,122299,0.25),(122300,198049,0.28),(198050,388349,0.33),(388350,900000000000,0.35))
vaTax2012 = ((0,3000,0,0.02,0),\
	   (3001,5000,60,0.03,3000),\
	   (5001,17000,120,0.05,5000),\
	   (17001,900000000000,720,0.0575,17000)) # (min,max,flat,%, excess)

def FederalTax12Prcnt(maritalstatus="", yearIncome=0): # s = single, mfj = married filing jointly, mfs = married filing separately, hoh = head of houshold
	""" FederalTax12Prcnt(maritalstatus="", yearIncome=0) Returns current federal tax percentage for 2012. """
	try:
		for x in fedTax2012[maritalstatus]:
			if x[1] > yearIncome > x[0]:
				return x[2];
	except:
		return;

def FederalTax12Total(maritalstatus="", yearIncome=0): # s = single, mfj = married filing jointly, mfs = married filing separately, hoh = head of houshold
	""" FederalTax12Total(maritalstatus, yearIncome) Returns total federal tax for the year 2012 """
	try:
		for x in fedTax2012[maritalstatus]:
			if x[1] > yearIncome > x[0]:
				return round((x[2] * yearIncome),2);
	except:
		return;

def VaTax2012YearTotal(yearIncome=0):
	""" VaTax2012YearTotal(yearIncome) Returns state tax for 2012. """
	try:
		for x in vaTax2012:
			if x[1] > yearIncome > x[0]:
				return round((x[2] + x[3] * yearIncome),2);
	except:
		return;

def ReturnTaxValues(TotalYearsIncome = 0, FilingStatus = "s"):
	""" Return tuple of all relevant tax values (fed. percent, fed tax, state tax, total tax) """
	return (int(100*FederalTax12Prcnt("s",TotalYearsIncome)), # Federal tax percent rate
		float(FederalTax12Total("s", TotalYearsIncome)), # Federal tax total
		float(VaTax2012YearTotal(TotalYearsIncome)), # State tax total
		float(FederalTax12Total("s", TotalYearsIncome) + VaTax2012YearTotal(TotalYearsIncome)) # Combined Federal and State tax
		)

def RunTest(IncVariable = 0.0,CurStVal = "YR"):
	""" RunTest( Income, TimeHandler) Prints out overall values for the tax year. """
	CurTupTax = ReturnTaxValues(IncVariable)
	print
	print "_-^-" * 10
	print "Estimated values given on current income."
	print "Income: $" + format(IncVariable, ",.2f")
	print "Federal tax is at " + format(CurTupTax[0], ",d") + r"%"
	print "Fedral tax for year: $" + format(CurTupTax[1], ",.2f")
	print "State tax for year: $" + format(CurTupTax[2], ",.2f")
	print "Total tax for the year equals: $" + format(CurTupTax[3], ",.2f")
	if CurStVal == "WK":
		print "Tax for one week: $" + format(CurTupTax[3]/52, ",.2f")
		print "After taxes are deducted you have $" + format(IncVariable/52 - CurTupTax[3]/52, ",.2f") + " this paycheck."
	elif CurStVal == "BIWK":
		print "Tax for biweekly: $" + format(CurTupTax[3]/26, ",.2f")
		print "After taxes are deducted you have $" + format((IncVariable-CurTupTax[3])/26, ",.2f") + " this paycheck."
	print "_-^-" * 10
	print
	return;


if __name__ == '__main__':
	if len(sys.argv) > 1:
		for x in range(len(sys.argv)):
			if sys.argv[x] == "-wk" and len(sys.argv) > x:
				try:
					RunTest(float(sys.argv[x+1]) * 52, "WK")
				except:
					raise Exception("-wk Not A Valid Number!")
				break;
			elif sys.argv[x] == "-biwk" and len(sys.argv) > x:
				try:
					RunTest(float(sys.argv[x+1]) * 26,"BIWK")
				except:
					raise Exception("-biwk Not A Valid Number!")
				break;
			else:
				if len(sys.argv) == x+1:
					try:
						RunTest(float(sys.argv[x]),"YR")
						continue;
					except:
						raise Exception("Not A Valid Number!")
				else:
					continue;
				print "Darn.  You don't want this result."
				break;
	else:
		print
		print "_-^-" * 10
		print "taxhandler.py"
		print "     Usage: taxhandler ( -wk | -biwk |   ) #####"
		print "_-^-" * 10
		print