Attendance registration at the workplace

30 July 2026 - Check in and out at work for works on immovable property from 1 April 2027

Updated information under the sections ‘Check in at work’ and ‘Check in and out at work’ on this page.

In the fight against social fraud, you are obliged in some sectors to register your attendance at work. Your employer has to inform you whether attendance registration is required at your workplace.  You and your employer are jointly responsible for this registration. 

Attendance registration is currently mandatory in the following sectors:

  • Works on immovable property, delivery of ready-mixed concrete and activities in the meat sector (Check in at work)
  • Cleaning activities in immovable property (Check in and out at work)

As from 1 April 2027 the obligation to register attendance for works on immovable property and the supply of ready-mixed concrete will be extended to Check in and out at work.

30 July 2026 - Check in and out at work for works on immovable property from 1 April 2027

The mandatory attendance registration will be extended to everyone carrying out works on immovable property (with the exception of cleaning activities) and the supply of ready-mixed concrete.

From 1 April 2027 you will have to use ‘Check in and out at work’ to register your attendance at your place of work. You and/or your employer will no longer be able to use ‘Check in at work’ from then on.

This applies to workplaces where work is carried out with a total value of at least 500,000 euros, excluding VAT.

You can register your attendance in the Check in at work online service (in French) if you:

  • carry out works on immovable property before 1 April 2027 at a workplace where the total costs are equal to or exceed a certain threshold amount, or 
  • carry out activities related to meat preparations or meat products and the slaughter or cutting of hoofed animals, poultry and rabbits in establishments that are subject to approval of the Federal Agency for the Safety of the Food Chain (FASFC).

As an employee, you have to ensure that your attendance at the workplace is registered. You can:

  • register your attendance yourself in Check in at work if you have agreed on this with your employer, or
  • check the registration of your attendance made by your employer. 

When are you required to register your attendance in Check in at work?

You must register your attendance in Check in at work (or have it registered) before you start work. Your attendance must be registered every working day. This can be done either on the same day or in advance.

What do you need to register?

To register your attendance, you need an identification number. This is:

  • a Belgian national registration number or BIS number, or
  • the QR code of your Limosa-1 document.

Please note: you can only use the Limosa QR code to register or have your attendance registered. You cannot view or cancel the registration.

Employers and self-employed contractors

Information on the responsibilities and obligations of employers and self-employed contractors can be found under Check in at work on Working in Belgium.

30 July 2026 - Check in and out at work for works on immovable property from 1 April 2027

The mandatory attendance registration in ‘Check in and out at work’ will be extended.

From 1 April 2027 you will also have to use ‘Check in and out at work’ when you’re carrying out works on immovable property (with the exception of cleaning activities) and the supply of ready-mixed concrete.

This applies to workplaces where work is carried out with a total value of at least 500,000 euros, excluding VAT.

Check in and out at work is the online service for registering attendance at work in selected sectors.  

Since 1 September 2024 use of the system has been mandatory for cleaning activities in works on immovable property.   

As from 1 April 2027 it will also be mandatory to use the system when performing other types of works on immovable property (construction, restoration, electrics, carpentry, earthworks and so on) and when supplying ready-mixed concrete.‌ 

If you are an employee, a self-employed worker, temporary agency worker, student or trainee, you must register your own attendance. You must do so at the site and without delay. Your employer cannot register you in advance. 

When exactly are you required to register with Check in and out at work?

If you carry out cleaning activities, you have to register in Check in and out at work when your activities start and end. Thus, you are required to register:

  • ‘In’ when you start work, and
  • ‘Out’ when you have finished.

You have to register the start and end of breaks in the same way. Thus, you should register:

  • ‘Out’ at the start of your break, and
  • ‘In’ when your break is over.

If you perform other specific works on immovable property or supply ready-mixed concrete, as from 1 April 2027, you will have to register in Check in and out at work each time you arrive at or leave the workplace.  You will therefore have to: 

  • register ‘In’ when you arrive at the workplace; and 
  • register ‘Out’ when you leave the workplace. 

Breaks will not have to be registered.

How do you register in Check in and out at work?

There are different channels for registering in Check in and out at work. Your employer will inform you which channel to use. 

You have the following options:

What do you need to register in the online service?

To access the secure application Check in and out at work you need an approved digital key.

Here are the approved digital keys:

  1. MyGov.be: If you have a Belgian electronic identity card, you can use this digital key. However, you will need to install the MyGov.be app on your smartphone. For more information, please visit the help centre page of the MyGov.be website. 
  2. itsme: If you have a Belgian electronic identity card (eID), you can use this digital key. However, you have to install the itsme app on your smartphone. For more information, please visit the itsme page of the CSAM help centre.
  3. eIDAS: If you don't have a Belgian identity card but you do have another approved European electronic proof of identity, you can use this digital key. To find out whether your electronic proof of identity authorises you to log in, click on ‘Log in with an electronic identification means recognized at European level’. You will then get an overview which member states already have an electronic proof of identity.
    Please note: In order to use eIDAS, you are required to identify yourself to this service. For this, you will need your European electronic proof of identity, your email address and phone number. More information can be found on the eIDAS page of the CSAM help centre.
  4. E-Mail TOTP: Your country doesn't support the digital keys itsme or eIDAS and/or you don't have a Belgian national identification number (BIS number)? Then make an appointment for a video call with Sigedis, the partner of the social security institutions for personal identification. Please make an appointment on the belgianID-website. After checking a number of documents, Sigedis will determine whether you already have a BIS number. If you don’t have one, Sigedis will create a number for you. During your video call, Sigedis will help you to obtain a digital key.

How do you check your registrations?

Log in to the Check in and out at work online service on your mobile or desktop. You will find your registrations in the calendar.

How do you correct registrations?

If you discover errors in your registrations, contact your employer. To have data corrected, your employer must submit a request to the National Social Security Office (NSSO). If there is sufficient evidence, the NSSO will adjust the data.

Please note that corrections must be requested within 30 days of the registration date. No changes are possible after this deadline.

Check in and out at work manual for the cleaning sector 

In the Check in and out at work manual for the cleaning sector you will find all the practical steps for registration and information on the functions of the online service.

Information for employers

For information on the responsibilities and obligations of employers in the context of Check in and out at work, please visit Check in and out at work on Working in Belgium.

The procedure information on this page was funded by the European Union.

Logo Funded by the European Union – NextGenerationEU

Funded by the European Union – NextGenerationEU. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or European Commission. Neither the European Union nor the European Commission can be held responsible for them.

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