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suite/l10n_us_hr_payroll/models/state/mo_missouri.py

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1.9 KiB
Python

# Part of Hibou Suite Professional. See LICENSE_PROFESSIONAL file for full copyright and licensing details.
from .general import _state_applies, sit_wage
def mo_missouri_state_income_withholding(payslip, categories, worked_days, inputs):
"""
Returns SIT eligible wage and rate.
WAGE = GROSS + DED_FIT_EXEMPT
:return: result, result_rate (wage, percent)
"""
state_code = 'MO'
if not _state_applies(payslip, state_code):
return 0.0, 0.0
filing_status = payslip.dict.contract_id.us_payroll_config_value('mo_mow4_sit_filing_status')
if not filing_status:
return 0.0, 0.0
# Determine Wage
wage = sit_wage(payslip, categories)
if not wage:
return 0.0, 0.0
reduced_withholding = payslip.contract_id.us_payroll_config_value('mo_mow4_sit_withholding')
if reduced_withholding:
return wage, -((reduced_withholding / wage) * 100.0)
pay_periods = payslip.dict.get_pay_periods_in_year()
additional = payslip.dict.contract_id.us_payroll_config_value('state_income_tax_additional_withholding')
sit_table = payslip.dict.rule_parameter('us_mo_sit_rate')
deduction = payslip.dict.rule_parameter('us_mo_sit_deduction')[filing_status]
gross_taxable_income = wage * pay_periods
gross_taxable_income -= deduction
remaining_taxable_income = gross_taxable_income
withholding = 0.0
for amt, rate in sit_table:
amt = float(amt)
rate = rate / 100.0
if (remaining_taxable_income - amt) > 0.0 or (remaining_taxable_income - amt) == 0.0:
withholding += rate * amt
else:
withholding += rate * remaining_taxable_income
break
remaining_taxable_income = remaining_taxable_income - amt
withholding /= pay_periods
withholding += additional
withholding = round(withholding)
return wage, -((withholding / wage) * 100.0)