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[IMP] l10n_us_hr_payroll: WI Wisconsin 2022 SIT Formula

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This commit is contained in:
Jared Kipe
2022-01-13 12:05:25 -08:00
parent 71e6ca36b3
commit 07f90b4ced
2 changed files with 40 additions and 3 deletions
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11
l10n_us_hr_payroll/data/state/wi_wisconsin.xml
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@@ -37,6 +37,17 @@
<field name="date_from" eval="datetime(2020, 1, 1).date()"/>
</record>
<record id="rule_parameter_us_wi_sit_deduction_rate" model="hr.rule.parameter">
<field name="name">US WI Wisconsin SIT Deduction Rate</field>
<field name="code">us_wi_sit_deduction_rate</field>
<field name="country_id" ref="base.us"/>
</record>
<record id="rule_parameter_us_wi_sit_deduction_rate_2021" model="hr.rule.parameter.value">
<field name="parameter_value">False</field>
<field name="rule_parameter_id" ref="rule_parameter_us_wi_sit_deduction_rate"/>
<field name="date_from" eval="datetime(2021, 1, 1).date()"/>
</record>
<record id="rule_parameter_us_wi_sit_tax_rate" model="hr.rule.parameter">
<field name="name">US WI Wisconsin SIT Tax Rate</field>
<field name="code">us_wi_sit_tax_rate</field>

32
l10n_us_hr_payroll/models/state/wi_wisconsin.py
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@@ -29,15 +29,41 @@ def wi_wisconsin_state_income_withholding(payslip, categories, worked_days, inpu
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]
# deduction_table introduced in 2022
deduction_table = payslip.rule_parameter('us_wi_sit_deduction_rate')
if deduction_table:
deduction_table = deduction_table[filing_status]
# tax_table simplified in 2022
tax_table = payslip.rule_parameter('us_wi_sit_tax_rate')
if isinstance(tax_table, dict):
tax_table = tax_table[filing_status]
taxable_income = wage * pay_periods # (a)
if deduction_table:
deduction = 0.0
last_wage_cap = 0.0
last_deduction = 0.0
last_rate = 0.0
for row in deduction_table:
wage_cap, deduction, rate = row
if taxable_income <= wage_cap:
if last_rate:
deduction = last_deduction - ((taxable_income - last_wage_cap) * last_rate / 100.0)
break
last_wage_cap, last_deduction, last_rate = row
taxable_income -= deduction # (b)
taxable_income -= exemption_amt * exemptions # (c)
if taxable_income <= 0.0:
return 0.0, 0.0
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)
withholding = (((taxable_income - last) * (rate / 100)) + flat_fee)
break
last = amt