Minimum Wage Documentation
Here’s what it’s all about:
- Documentation Requirement Under Section 17 of the MiLoG for Certain Industries
- Record-Keeping and Retention Periods
- Mandatory Immediate Reporting for New Employees
- Fines of up to 30,000 euros for violations
Under Section 17 of the MiLoG, employers in certain industries (including construction, hospitality, the meat processing industry, freight forwarding, and building cleaning) must document the start, end, and duration of daily working hours and retain these records for at least two years. In addition, many of these industries are subject to an immediate reporting requirement: New employees must be registered with social security before starting work. Violations can result in fines of up to 30,000 euros.
🚨 Why Minimum Wage Documentation Is Especially Important
The documentation requirement under the Minimum Wage Act (MiLoG) is one of the key tools for combating illegal employment and minimum wage violations. It does not apply equally to all companies, but primarily to industries with a higher risk of abuse and frequently changing employment relationships.
The focus is particularly on companies with seasonal operations, high employee turnover, or a large number of part-time workers. It is precisely in these cases that the Customs Authority’s Financial Control Unit for Illegal Employment (FKS) regularly checks whether working hours have been properly documented and whether statutory reporting requirements are being met.
👉 For HR departments and payroll offices, this means that processes must be organized in a legally compliant manner so that complete documentation can be provided at any time.
🧐 Which industries are subject to documentation requirements?
The documentation requirement under Section 17 of the MiLoG applies in particular to employers in industries specified in Section 2a of the Act to Combat Illegal Employment (SchwarzArbG) as well as other sectors regulated by law.
Legal basis: Section 2a of the Black Market Labor Act (SchwarzArbG)
Distinguishing feature: high risk of undeclared work, many subcontractors
Legal basis: Section 2a of the Illegal Employment Act (SchwarzArbG)
Distinguishing feature: many part-time and “mini-job” employees
Legal basis: Section 2a of the Illegal Employment Act (SchwarzArbG)
Special feature: varying working hours
Legal basis: § 2a of the Black Labor Act (SchwarzArbG)
Special feature: mobile work, shift work
Legal basis: Section 2a of the Black Labor Act (SchwarzArbG)
Special Feature: Seasonal Employment
Legal basis: Section 2a of the Illegal Employment Act (SchwarzArbG)
Special feature: changing work locations
Legal basis: Section 2a of the Illegal Employment Act (SchwarzArbG)
Special feature: numerous facilities and mobile teams
Legal basis: § 2a of the SchwarzArbG
Special Feature: Project-Based Employment
Legal basis: Section 17 of the MiLoG in conjunction with special provisions
Distinctive feature: increased frequency of statutory inspections
Legal basis: Section 2a of the Illegal Employment Act (SchwarzArbG)
Special Feature: Area subject to special legal oversight
👉 What these industries have in common is an increased risk of illegal employment or minimum wage violations. For this reason, there are more extensive documentation and monitoring requirements in these sectors.
🔍 Detailed Information on the Documentation Requirement Under Section 17 of the MiLoG
Employers must document the following information for the affected employees:
🔵 Start of the daily work shift
🔵 End of the daily workday
🔵 Daily Working Hours
Working hours must be recorded no later than the end of the seventh calendar day following the work performed. The records must be retained for at least two years. The retention period begins on the date relevant to the respective record.
The law does not prescribe any specific form of documentation. In theory, paper lists, Excel files, or electronic systems can be used. In practice, however, digital time tracking makes it much easier to maintain records, since data is stored in an audit-proof manner, can be analyzed more quickly, and can be easily exported during audits. Learn more.
🚧 Distinction from general time tracking
The documentation requirement under Section 17 of the MiLoG is often confused with general time tracking. However, the MiLoG regulation applies exclusively to certain industries and is primarily intended to ensure compliance with the minimum wage.
This should be distinguished from the general obligation to record working hours, which stems from the case law of the European Court of Justice and the Federal Labor Court and generally applies to all employers. More on this.
While Section 17 of the MiLoG is specifically intended to prevent minimum wage violations, the general requirement for recording working hours is primarily intended to protect employees from excessively long working hours.
🚨 Immediate Reporting Requirement: What Does It Mean?
In addition to the documentation requirement, many companies are also subject to what is known as the immediate reporting requirement.
It requires employers to electronically register new employees with the appropriate collection agency before they begin work. This ensures that the Financial Control Unit for Illegal Employment receives information about the employment relationship even before work begins. The immediate reporting requirement is particularly relevant for, among others:
✅ Construction Industry
✅ Restaurants
✅ Building Cleaning
✅ Meat Industry
✅ Amusement Industry
✅ Forestry
✅ Freight Forwarding and Transportation
Practical Procedure
Before the first day of work, the immediate notification must be submitted electronically via the payroll system or a certified reporting procedure. Employment should not begin until after this has been done.
A common mistake is to wait until the first workday—or even after work has begun—to file the registration. This alone may already constitute a reportable violation.
⚠️ What fines might you face?
Compliance with the documentation requirement is regularly reviewed by the Customs Authority’s Financial Control Unit for Illegal Employment (FKS). Depending on the nature of the violation, significant penalties may be imposed.
Possible consequence: A fine of up to 30,000 euros
Possible consequence: A fine under social security law
Possible consequence: further regulatory consequences
Possible consequence: potential exclusion from public procurement procedures
👉 In addition to financial consequences, there is a risk of significant organizational burdens and damage to the company’s reputation with clients and government agencies.
Typical Procedure for a Customs Inspection
Inspections are often conducted unannounced directly at the workplace. Among other things, the inspectors require:
🔵 Time Sheets
🔵 Payroll Records
🔵 Employee Lists
🔵 Social Security Reports
🔵 Documentation for Immediate Reporting
If these documents are missing or contain omissions, administrative violation proceedings may be initiated immediately.
👍 Digital time tracking makes it easier to comply with requirements
Paper lists quickly reach their limits, especially in industries where work locations vary. Employees forget to make entries, lists get lost, or data isn’t transferred until days later. This increases the risk of incomplete documentation.
Digital time-tracking systems help ensure that legal requirements are reliably met. Key features include, in particular:
✅ The seamless tracking of the start and end times of work
✅ Audit-proof storage of the recorded data
✅ Mobile time tracking via smartphone or tablet (learn more)
✅ Centralized management of all time sheets
✅ An export function for customs inspections
Companies in the construction, building cleaning, logistics, and trade show construction industries, in particular, benefit from mobile solutions, as employees can track their work hours directly at their respective work sites. Learn more about ZMI’s time-tracking system.
✅ Checklist for Employers
1️⃣ Determine whether the company is subject to Section 2a of the SchwarzArbG or corresponding special regulations
2️⃣ Documentation process established for start, end, and duration
3️⃣ Record work hours within seven days at the latest
4️⃣ Ensure that records are retained for at least two years
5️⃣ Immediate Reporting Process for New Hires Defined
6️⃣ Clearly define internal responsibilities
7️⃣ Consider digital time tracking as an alternative to paper
8️⃣ Regularly inform employees about documentation requirements
9️⃣ Conduct internal spot checks to ensure completeness
🔟 Designate a contact person for customs inspections
🤓 Conclusion: Minimum Wage Documentation
Companies in industries specifically covered by the Minimum Wage Act should regularly review their documentation and reporting processes. The combination of working time documentation under Section 17 of the Minimum Wage Act (MiLoG), the requirement for immediate reporting, and unannounced customs inspections makes reliable organization essential.
Digital time tracking can help ensure efficient compliance with legal requirements, provide audit-proof records, and significantly reduce administrative overhead—especially for mobile teams and those working at varying locations.
💡 FAQ
Does the documentation requirement also apply to people with mini-jobs?
Yes, part-time workers in particular are often subject to the documentation requirement, provided they work in an affected industry or are not covered by a statutory exception (e.g., for part-time workers in private households).
Do break times also need to be documented?
The MiLoG requires that the start, end, and duration of the daily work period be documented. Separate documentation of breaks may also be required under other labor law provisions governing working hours.
What happens if you forget to file the immediate report?
If the notification is not submitted in a timely manner before the start of employment, this may be considered an administrative offense and result in a fine.
Does this requirement also apply to working students or interns?
That depends on the specific employment relationship and the statutory exceptions. The specific job duties and the relevant legal basis are always the determining factors.
Is an Excel spreadsheet sufficient as documentation?
In principle, yes, provided that all legal requirements are met and the records are complete, traceable, and maintained in a timely manner. However, digital time-tracking systems generally provide a higher degree of evidence reliability.
How does the MiLoG documentation requirement differ from the general time-recording requirement?
The MiLoG documentation requirement applies only to certain industries and is intended to monitor compliance with the minimum wage. General working-hour tracking applies to all employers and is primarily intended to ensure compliance with occupational safety regulations.
Jonathan Martin
Jonathan Martin is a managing partner at ZMI GmbH. For many years, he has been working in the fields of time tracking, HR software, access control, and the digitization of HR processes. In his articles, he provides practical insights into current developments, legal requirements, and digital solutions for businesses.



