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49 lines
1.8 KiB
Python
49 lines
1.8 KiB
Python
# Part of Hibou Suite Professional. See LICENSE_PROFESSIONAL file for full copyright and licensing details.
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from .general import _state_applies, sit_wage
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def ia_iowa_state_income_withholding(payslip, categories, worked_days, inputs):
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"""
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Returns SIT eligible wage and rate.
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:return: result, result_rate (wage, percent)
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"""
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state_code = 'IA'
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if not _state_applies(payslip, state_code):
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return 0.0, 0.0
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if payslip.contract_id.us_payroll_config_value('state_income_tax_exempt'):
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return 0.0, 0.0
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# Determine Wage
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wage = sit_wage(payslip, categories)
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if not wage:
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return 0.0, 0.0
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schedule_pay = payslip.dict.contract_id.schedule_pay
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fed_withholding = categories.EE_US_941_FIT
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additional = payslip.dict.contract_id.us_payroll_config_value('state_income_tax_additional_withholding')
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allowances = payslip.dict.contract_id.us_payroll_config_value('ia_w4_sit_allowances')
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standard_deduction = payslip.dict.rule_parameter('us_ia_sit_standard_deduction_rate')[schedule_pay]
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tax_table = payslip.dict.rule_parameter('us_ia_sit_tax_rate')[schedule_pay]
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deduction_per_allowance = payslip.dict.rule_parameter('us_ia_sit_deduction_allowance_rate')[schedule_pay]
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t1 = wage + fed_withholding
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standard_deduction_amt = standard_deduction[0] if allowances < 2 else standard_deduction[1]
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t2 = t1 - standard_deduction_amt
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t3 = 0.0
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last = 0.0
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for row in tax_table:
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cap, rate, flat_fee = row
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if float(cap) > float(t2):
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taxed_amount = t2 - last
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t3 = flat_fee + (rate * taxed_amount)
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break
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last = cap
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withholding = t3 - (deduction_per_allowance * allowances)
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withholding = max(withholding, 0.0)
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withholding += additional
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return wage, -((withholding / wage) * 100.0)
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