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suite/l10n_us_hr_payroll/models/state/wi_wisconsin.py
2020-05-28 10:26:14 -04:00

48 lines
1.6 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 wi_wisconsin_state_income_withholding(payslip, categories, worked_days, inputs):
"""
Returns SIT eligible wage and rate.
:return: result, result_rate (wage, percent)
"""
state_code = 'WI'
if not _state_applies(payslip, state_code):
return 0.0, 0.0
# Determine Wage
wage = sit_wage(payslip, categories)
if not wage:
return 0.0, 0.0
if payslip.contract_id.us_payroll_config_value('state_income_tax_exempt'):
return 0.0, 0.0
filing_status = payslip.contract_id.us_payroll_config_value('wi_wt4_sit_filing_status')
if not filing_status:
return 0.0, 0.0
pay_periods = payslip.dict.get_pay_periods_in_year()
additional = payslip.contract_id.us_payroll_config_value('state_income_tax_additional_withholding')
exemptions = payslip.contract_id.us_payroll_config_value('wi_wt4_sit_exemptions')
exemption_amt = payslip.rule_parameter('us_wi_sit_exemption_rate')
tax_table = payslip.rule_parameter('us_wi_sit_tax_rate')[filing_status]
taxable_income = wage * pay_periods
withholding = 0.0
last = 0.0
for row in tax_table:
amt, rate, flat_fee = row
if taxable_income <= float(amt):
withholding = (((taxable_income - last) * (rate / 100)) + flat_fee) - (exemptions * exemption_amt)
break
last = amt
withholding = max(withholding, 0.0)
withholding /= pay_periods
withholding += additional
return wage, -((withholding / wage) * 100.0)