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pythonpayrollstructuresalary_rule
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Patrick MANDENGUE

Hi Fam,

I am configuring payroll for my company, but I have a "small" issue with the setup for the PAYE Tax in the salary structure. the calculation for PAYE is defined by the Gross Salary as such:


def calculate_paye('GROSS'):
    """
    Calculate PAYE (Pay As You Earn) tax based on gross salary.
    :param gross: float or int - gross salary amount
    :return: float - calculated PAYE
    """
    if ['GROSS'].amount <= 490:
        return 0.0  # No tax for salaries <= 490
    else:
        return -25.0  # Flat tax amount (example)


Can someone help me to fix this as I keep getting an error:

Wrong python code defined for: - Employee: Ireana Gomesh - 

Version: False - 

Payslip: Salary Slip - Ireana Gomesh - February 2026 - 

Salary rule: PAYE Tax (PAYE) - 

Error: invalid syntax (, line 1)

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Sujata

Try this instead:
result = 0.0
# Access GROSS using its code
gross = payslip.get_rule_value('GROSS')
if gross <= 490:
result = 0.0 # No tax for salaries <= 490
else:
result = -25.0 # Flat tax amount

Alternative (if above doesn't work):
result = 0.0
# Direct calculation using same formula as GROSS
gross = categories.BASIC + categories.ALW
if gross <= 490:
result = 0.0
else:
result = -25.0

Also verify:
1. Your GROSS rule code field is exactly GROSS (case-sensitive)
2. PAYE rule sequence number is higher than GROSS rule
3. Both rules are in the same salary structure

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Cybrosys Techno Solutions Pvt.Ltd
Best Answer

Hi,


Try the following code,


# Get Gross Salary from salary categories

gross = categories.GROSS or 0.0


# PAYE calculation

if gross <= 490:

    result = 0.0

else:

    result = -25.0


Hope it helps


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Patrick MANDENGUE
Autor

when Conditions based on: Always true

Computation
# Get Gross Salary from salary categories
gross = categories.GROSS or 0.0
# PAYE calculation
if gross <= 490:
result = 0.0
else:
result = -25.0

Feeback: Error: AttributeError("'DefaultDictPayroll' object has no attribute 'GROSS'") while evaluating
'# Get Gross Salary from salary categories\r\ngross = categories.GROSS or 0.0\r\n\r\n# PAYE calculation\r\nif gross <= 490:\r\n result = 0.0\r\nelse:\r\n result = -25.0'

When the conditions are based on python Expression
result = 'BASIC' in inputs
result = 'ALW' in inputs

Computation
# Direct calculation using same formula as GROSS
gross = categories.BASIC + categories.ALW # Access the GROSS salary rule
if gross <= 490:
result = 0.0 # No tax for salaries <= 490
else:
result = -25.0 # Flat tax amount

There is no Error, but PAYE Tax doesn't appear when we compute sheet in the Employee payslip (Strange)

Patrick MANDENGUE
Autor

please do you have a whatsapp number?

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Sujata
Best Answer

Hi Patrick,

Thanks for the details! Since GROSS is a salary rule (not a category), here's the code that can help:

result = 0.0
gross = rules.GROSS.amount  # Access the GROSS salary rule
if gross <= 490:
    result = 0.0  # No tax for salaries <= 490
else:
    result = -25.0  # Flat tax amount

Changes Required:

  • Use rules.GROSS.amount to get the value from your GROSS salary rule
  • Assign to result variable (required in Odoo)
  • Remove the function definition (def) as Odoo automatically wraps your code in a function context

Important: Make sure your PAYE rule has a higher sequence number than the GROSS rule so it calculates after GROSS is computed.

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Patrick MANDENGUE
Autor

- Error: AttributeError("'DefaultDictPayroll' object has no attribute 'GROSS'") while evaluating
'result = 0.0\r\ngross = rules.GROSS.amount # Access the GROSS salary rule\r\nif gross <= 490:\r\n result = 0.0 # No tax for salaries <= 490\r\nelse:\r\n result = -25.0 # Flat tax amount'

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Patrick MANDENGUE
Autor Best Answer
version: Odoo 19.0+e (Enterprise Edition)


Taxable Salary (code = GROSS) is Salary Rule

python code

result = categories['BASIC'] + categories['ALW'] 

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