How enforceable are restraints of trade?

By EMA Head of Legal Mauro Barsi

This article first appeared in NZ Herald on 3 March 2025.

  • Restraints of trade are one of the most common issues that come up in judgments of both the Employment Relations Authority and the Employment Court.
  • Employers seeking to enforce restraint clauses must demonstrate that the restrictions are necessary to protect their business interests, and that they are reasonable.
  • Courts may refuse to enforce overly broad or unreasonable clauses.

It’s a nightmare scenario for any employer when a former staff member tries to poach the company’s clients after their employment ends.

That’s why many companies include restraint-of-trade clauses in their employment agreements, to better protect their business interests.

These clauses aim to prevent employees from using confidential information, trade secrets or client relationships to benefit a competitor after their employment ends.

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