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# How do I set up the Mutuality Class and Bonus-Malus correctly?

This article explains how to configure mutuality class and bonus-malus factor settings for your company in Salary.lu, including default values for new companies and how to update them when you receive official documentation.

## Default settings for new companies

If your company is in its first year, the system automatically applies these default values:

* **Mutuality class:** Class 2
* **Bonus-malus factor:** 1

These defaults remain active unless you receive specific instructions from the relevant authorities or update them manually.

## Automatic updates for SECUline companies

As of 2025, companies using SECUline automatically receive the correct values from the CCSS. The system will apply these updates without manual intervention.

## Manual updates when required

If you receive official documentation indicating changes to the mutuality class or bonus-malus factor, follow these steps:

1. Log in to your Salary.lu account
2. Navigate to the "Company" section
3. Scroll down to find the mutuality class and bonus-malus factor input fields
4. Enter the updated values as provided by the relevant authority
5. Save the changes

|| **Important:** Only update these values when you have received official documentation from the authorities. Do not change them based on assumptions.

## What happens if I don't update these settings?

For companies where values are not automatically received from the CCSS, the system will continue using the default settings:

* Class 2 for mutuality class
* Factor 1 for bonus-malus

These defaults will remain until you manually update them with official values.

| **Note:** If the values are not correct, calculations on some documents like the accounting allocation and salary book will not be fully accurate and will need to be updated later on.

## Where to find the necessary details

You can obtain the required mutuality class and bonus-malus information through:

* Official letters from the CCSS (typically MDE + AAA documents)
* Direct email request to the CCSS asking for this information

| **Note:** Always verify that any documentation is current and official before making updates to these settings.

For further assistance with mutuality class and bonus-malus configuration, contact our support team.