suite/l10n_us_mt_hr_payroll/data/rules.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>

<!-- HR SALARY RULES-->
    <record id="hr_payroll_rules_mt_unemp_wages" model="hr.salary.rule">
        <field name="sequence" eval="423"/>
        <field name="category_id" ref="hr_payroll_mt_unemp_wages"/>
        <field name="name">Wage: US-MT Unemployment</field>
        <field name="code">WAGE_US_MT_UNEMP</field>
        <field name="condition_select">python</field>
        <field name="condition_python">result = (contract.futa_type != contract.FUTA_TYPE_BASIC)</field>
        <field name="amount_select">code</field>
        <field name="amount_python_compute">
###
year = payslip.dict.date_to.year
rate = payslip.dict.get_rate('US_MT_UNEMP')
ytd = payslip.sum('WAGE_US_MT_UNEMP', str(year) + '-01-01', str(year+1) + '-01-01')
ytd += contract.external_wages
remaining = rate.wage_limit_year - ytd
if remaining &lt;= 0.0:
    result = 0
elif remaining &lt; categories.BASIC:
    result = remaining
else:
    result = categories.BASIC
        </field>
        <field name="appears_on_payslip" eval="False"/>
    </record>
    <record id="hr_payroll_rules_mt_unemp" model="hr.salary.rule">
        <field name="sequence" eval="443"/>
        <field name="category_id" ref="hr_payroll_mt_unemp"/>
        <field name="name">ER: US-MT Unemployment</field>
        <field name="code">ER_US_MT_UNEMP</field>
        <field name="condition_select">python</field>
        <field name="condition_python">result = (contract.futa_type != contract.FUTA_TYPE_BASIC)</field>
        <field name="amount_select">code</field>
        <field name="amount_python_compute">
rate = payslip.dict.get_rate('US_MT_UNEMP')
result_rate = -rate.rate
result = categories.WAGE_US_MT_UNEMP

# result_rate of 0 implies 100% due to bug
if result_rate == 0.0:
    result = 0.0
        </field>
        <field name="register_id" ref="contrib_register_mtdor_unemp"/>
        <field name="appears_on_payslip" eval="False"/>
    </record>

    <record id="hr_payroll_rules_mt_inc_withhold" model="hr.salary.rule">
        <field name="sequence" eval="145"/>
        <field name="category_id" ref="hr_payroll_mt_income_withhold"/>
        <field name="name">EE: US-MT Income Withholding</field>
        <field name="code">EE_US_MT_INC_WITHHOLD</field>
        <field name="condition_select">python</field>
        <field name="condition_python">result = not contract.mt_mw4_exempt</field>
        <field name="amount_select">code</field>
        <field name="amount_python_compute">
year = payslip.dict.date_to.year
G = categories.GROSS
N = contract.mt_mw4_exemptions
additional = contract.mt_mw4_additional_withholding
schedule_pay = contract.schedule_pay
result = 0.00
float_max = float('inf')

if year == 2019 or True:
    if schedule_pay == 'weekly':
        bracket = [
            (135.0, 0.0, 1.80, 0.0),
            (288.0, 2.0, 4.40, 135.0),
            (2308.0, 9.0, 6.00, 288.0),
            (float_max, 130.0, 6.60, 2308.0),
        ]
        exemption_rate = 37.0
    elif schedule_pay == 'bi-weekly':
        bracket = [
            (269.0, 0.0, 1.80, 0.0),
            (577.0, 5.0, 4.40, 269.0),
            (4615.0, 18.0, 6.00, 577.0),
            (float_max, 261.0, 6.60, 4615.0),
        ]
        exemption_rate = 73.0
    elif schedule_pay == 'semi-monthly':
        bracket = [
            (292.0, 0.0, 1.80, 0.0),
            (625.0, 5.0, 4.40, 292.0),
            (5000.0, 20.0, 6.00, 625.0),
            (float_max, 282.0, 6.60, 5000.0),
        ]
        exemption_rate = 79.0
    elif schedule_pay == 'monthly':
        bracket = [
            (583.0, 0.0, 1.80, 0.0),
            (1250.0, 11.0, 4.40, 583.0),
            (10000.0, 40.0, 6.00, 1250.0),
            (float_max, 565.0, 6.60, 10000.0),
        ]
        exemption_rate = 158.0
    elif schedule_pay == 'annually':
        bracket = [
            (7000.0, 0.0, 1.80, 0.0),
            (15000.0, 126.0, 4.40, 7000.0),
            (120000.0, 478.0, 6.00, 15000.0),
            (float_max, 6778.0, 6.60, 120000.0),
        ]
        exemption_rate = 1900.0
    else:
        raise Exception('Invalid schedule_pay=' + schedule_pay + ' for MT Income Withholding')

    T = G - (exemption_rate * N)
    if T &lt;= 0.0:
        result = 0.0
    else:
        for data in bracket:
            if T &lt; data[0]:
                result = round(data[1] + ((data[2] / 100.0) * (T - data[3])))
                break

result += additional
result = -result
        </field>
        <field name="register_id" ref="contrib_register_mtdor_withhold"/>
    </record>

</odoo>