odoo/addons/hr_payroll/hr_payroll_data.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data noupdate="1">
    
        <record id="AL" model="hr.salary.head">
            <field name="name">Allowance</field>
            <field name="code">ALW</field>
        </record>
        
        <record id="DED" model="hr.salary.head">
            <field name="name">Deduction</field>
            <field name="code">DED</field>
        </record>
        
        <record id="HRA" model="hr.salary.head">
            <field name="code">HRA</field>
            <field name="parent_id" ref="AL"/>
            <field name="name">House Rent Allowance</field>
            <field name="sequence" eval="5"/>
        </record>

        <record id="CA" model="hr.salary.head">
            <field name="code">CA</field>
            <field name="parent_id" ref="AL"/>
            <field name="name">Conveyance Allowance</field>
            <field name="sequence" eval="10"/>
        </record>
        
        <record id="MA" model="hr.salary.head">
            <field name="code">MA</field>
            <field name="parent_id" ref="AL"/>
            <field name="name">Medical Allowance</field>
            <field name="sequence" eval="15"/>
        </record>

        <record id="TELA" model="hr.salary.head">
            <field name="code">TELA</field>
            <field name="parent_id" ref="AL"/>
            <field name="name">Telephone Allowance</field>
            <field name="sequence" eval="20"/>
        </record>
        
        <record id="LTA" model="hr.salary.head">
            <field name="code">LTA</field>
            <field name="parent_id" ref="AL"/>
            <field name="name">Leave Travel Allowance</field>
            <field name="sequence" eval="25"/>
        </record>
        
        <record id="NA" model="hr.salary.head">
            <field name="code">NA</field>
            <field name="parent_id" ref="AL"/>
            <field name="name">Newspaper Allowance</field>
            <field name="sequence" eval="30"/>
        </record>
        
        <record id="TA" model="hr.salary.head">
            <field name="code">TA</field>
            <field name="parent_id" ref="AL"/>
            <field name="name">Traveling Allowance</field>
            <field name="sequence" eval="35"/>
        </record>
        
        <record id="FA" model="hr.salary.head">
            <field name="code">FA</field>
            <field name="parent_id" ref="AL"/>
            <field name="name">Food Allowance</field>
            <field name="sequence" eval="40"/>
        </record>
        
        <record id="DA" model="hr.salary.head">
            <field name="code">DA</field>
           <field name="parent_id" ref="AL"/>
            <field name="name">Dearness Allowance</field>
            <field name="sequence" eval="45"/>
        </record>
        
        <record id="PF" model="hr.salary.head">
            <field name="code">PF</field>
            <field name="parent_id" ref="DED"/>
            <field name="name">Provident Fund</field>
            <field name="sequence" eval="50"/>
        </record>
        
        <record id="PT" model="hr.salary.head">
            <field name="code">PT</field>
            <field name="parent_id" ref="DED"/>
            <field name="name">Professional Tax</field>
            <field name="sequence" eval="55"/>
        </record>
        
        <record id="WF" model="hr.salary.head">
            <field name="code">WF</field>
            <field name="parent_id" ref="DED"/>
            <field name="name">Welfare</field>
            <field name="sequence" eval="60"/>
        </record>
        
        <record id="TDS" model="hr.salary.head">
            <field name="code">TDS</field>
            <field name="parent_id" ref="DED"/>
            <field name="name">Tax Deduct at Source</field>
            <field name="sequence" eval="65"/>
        </record>
        
        <record id="LWP" model="hr.salary.head">
            <field name="code">LWP</field>
            <field name="parent_id" ref="DED"/>
            <field name="name">Leave without pay</field>
            <field name="sequence" eval="70"/>
        </record>
        
        <record id="FC" model="hr.salary.head">
            <field name="code">FC</field>
            <field name="parent_id" ref="DED"/>
            <field name="name">Food Coupons</field>
            <field name="sequence" eval="75"/>
        </record>
        
        <record id="ESI" model="hr.salary.head">
            <field name="code">ESI</field>
            <field name="parent_id" ref="DED"/>
            <field name="name">Employee's State Insurance</field>
            <field name="sequence" eval="80"/>
        </record>
        
        <record id="NET" model="hr.salary.head">
            <field name="code">TP</field>
            <field name="parent_id" ref="AL"/>
            <field name="name">Total Payment</field>
            <field name="sequence" eval="85"/>
        </record>
        
        <record id="hr_salary_rule_net" model="hr.salary.rule">
            <field name="amount_type">code</field>
            <field name="code">NET</field>
            <field name="category_id" ref="NET"/>
            <field name="name">NET</field>
            <field name="sequence" eval="500"/>
            <field name="python_compute">total = basic+allowance+deduction</field>
        </record>
        
    </data>
</openerp>