A small oversight with big consequences
Every day, thousands of companies in Belgium must register their workers’ presence via Check-in-at-Work (CIAW).
It sounds simple. But missing even one registration can trigger administrative chaos or hefty fines.
Whether you’re a contractor, subcontractor, or cleaning service provider, not registering CIAW properly is a legal violation under Belgian NSSO rules.
Let’s look at what actually happens if you forget or fail to register, and how to avoid it altogether.
The purpose of Check-in-at-Work
CIAW exists to make construction and service work transparent, safe, and fair.
By registering every worker on site, the NSSO (National Social Security Office) can ensure that:
- Workers are declared and insured
- Social contributions are correctly paid
- Labour inspectors can trace who was present in case of incident or audit
That’s why registration is mandatory on qualifying worksites. It’s not optional paperwork, it’s legal protection.
What happens if you don’t register?
Failing to register Check-in-at-Work can result in serious administrative and financial penalties:
- NSSO Fines
- Up to €6,000 per violation for missing or incorrect registrations.
- Repeated offences can lead to higher cumulative fines.
- Inspection reports
- Labour inspectors may flag your company for non-compliance during site visits.
- Future inspections become more frequent and detailed.
- Labour inspectors may flag your company for non-compliance during site visits.
- Project delays or blocked payments
- Main contractors or clients can refuse payment if CIAW evidence is missing.
- You may lose eligibility for certain public contracts.
- Main contractors or clients can refuse payment if CIAW evidence is missing.
- Legal liability
- In case of accident, missing CIAW data can expose your company to liability claims or invalid insurance coverage.
- In case of accident, missing CIAW data can expose your company to liability claims or invalid insurance coverage.
In short: skipping registrations can cost you money, time, and reputation.
How the new CIAO rules increase the pressure
From January 2025, CIAW evolves into Check-in-and-Out-at-Work (CIAO).
That means both entry and exit times must be recorded, and the system expands to more sectors such as cleaning and facility services.
The NSSO will expect real-time reporting, not late uploads, making manual or semi-manual processes even riskier.
Why manual registration leads to mistakes
Even companies that try to comply often run into these problems:
- Paper or Excel lists uploaded too late
- Wrong site codes or worker IDs
- Missing mobile coverage on remote sites
- No integration with payroll or ERP
Each error increases your risk of non-compliance and the admin work to fix it later.
How Suivo prevents CIAW and CIAO fines automatically
Suivo Time Registration & Absence integrates compliance directly into daily operations:
- Mobile App & Vehicle Badges – automatic check-in/out for every worker
- Site Poles or Fixed Readers – perfect for shared worksites
- Direct NSSO synchronisation – no manual uploads, no missing data
- Audit-proof reporting – every registration traceable by date, site, and user
- Integration with payroll and ERP – complete data flow from field to HR
Once activated, Suivo ensures every presence is captured and reported instantly and correctly.
“We used to worry about inspections; now we’re confident everything is logged automatically.”
How to stay compliant - always
To avoid fines or stress:
- Automate registration through digital tools like Suivo.
- Train your teams to badge or log hours correctly.
- Review data daily in one dashboard.
By automating compliance today, you’ll already be ready for tomorrow’s regulations.
Compliance doesn’t have to be costly
Not registering Check-in-at-Work can cost thousands in fines, but automating it costs far less. Suivo keeps your company compliant, audit-proof, and stress-free.
Stay compliant automatically.
Book your free expert session and see how Suivo handles CIAW & CIAO registrations without the paperwork.
