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Germany

What Is AÜG?

Germany 4 min read Updated Jun 2026

AÜG (Arbeitnehmerüberlassungsgesetz), the Act on Temporary Agency Work, is the German law that regulates how companies can legally supply and hire temporary workers through staffing agencies. It requires agencies to hold a government-issued licence and sets rules on equal pay, maximum assignment duration, and worker protections.

Quick Fact

Companies using an unlicensed staffing agency, or exceeding the 18-month assignment limit, risk having the worker automatically deemed their own direct employee by law.

AÜG at a Glance

AttributeDescription
Full NameArbeitnehmerüberlassungsgesetz
GovernsTemporary agency work and employee leasing
Licence RequiredYes, issued by the Federal Employment Agency
Maximum Assignment18 months with the same client (per employee)
Equal Pay TriggerGenerally after 9 months, unless a derogating collective agreement applies
Risk of Non-ComplianceAutomatic employment transfer, fines up to €30,000 per violation

Why Does It Matter?

AÜG has real financial and legal teeth. If a company uses an agency without a valid AÜG licence, or keeps a leased worker beyond the 18-month limit, German law can automatically treat that worker as the client company's own direct employee, along with retroactive social security and pension liability. Many cross-border Employer of Record arrangements in Germany are structured under AÜG, making this law directly relevant to international hiring.

When Is It Used?

AÜG becomes relevant whenever a company:

  • Hires temporary staff through a German staffing agency.
  • Uses an Employer of Record structure that leases employees under German law.
  • Plans a long-term assignment and needs to track the 18-month clock.
Example

A Canadian manufacturing company needs additional production staff at its German facility for a busy season. It works with a licensed German staffing agency, which employs the workers directly and leases them to the client under AÜG. The company tracks assignment length carefully, knowing that exceeding 18 months with the same worker could trigger automatic employment transfer.

Common Misconceptions

“Any staffing agency can legally supply workers.”

No. Agencies must hold a valid AÜG licence from the Federal Employment Agency; using an unlicensed agency creates serious legal risk for the client.

“Temporary workers are paid less than permanent staff by default.”

Not necessarily. The equal pay principle generally requires the same wage as comparable permanent staff after a set period, unless a derogating collective agreement applies.

“There's no limit on how long a worker can be leased to one client.”

No. The standard rule caps an individual worker's assignment to the same client at 18 months.

“Employer of Record arrangements are automatically excluded from AÜG.”

No. Many EOR structures in Germany operate under an AÜG licence, since they function as a form of employee leasing.

Bottom Line

AÜG regulates temporary agency work in Germany, setting licensing, equal pay, and assignment duration rules that carry serious consequences for non-compliance. Companies using staffing agencies or EOR arrangements in Germany should confirm licensing status and track assignment length closely.

Using staffing agencies or an EOR in Germany?

We'll confirm AÜG licensing status and track your assignment durations to keep you compliant.

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