Does a union follow the business to a new owner?

Buyers evaluating a unionized target sometimes assume a clean asset purchase lets them start over without the union. That assumption is usually wrong, and finding out after closing is an expensive way to learn it.

Why successor rights exist

Labour boards look past the corporate mechanics of a transaction and ask whether the business itself — the operations, the workforce, the customers — carried on in substantially the same form under the new owner. If it did, most provinces treat the buyer as a successor employer bound by the certification and the collective agreement already in place, regardless of whether the buyer bought shares or assets.

Share sale versus asset sale here

In a share sale this is almost automatic, since the employer entity never changes and the collective agreement simply continues to bind it. In an asset sale, the analysis is more fact-specific — a labour board will look at how much of the workforce, equipment, location and customer base transferred — but a genuine going-concern purchase of a unionized operation is very likely to trigger successor rights either way.

What this means in practice

• The existing collective agreement continues to govern wages, hours and working conditions until it is renegotiated
• The buyer inherits the bargaining relationship, including any outstanding grievances
• Terminating and rehiring staff to sidestep the union rarely works and can itself be an unfair labour practice
• Due diligence needs to include the collective agreement, grievance history and any pending arbitration

Why this changes deal economics

A collective agreement can affect wage scales, seniority-based layoff and recall rights, and the buyer’s flexibility to restructure roles — all of which belong in the valuation and the negotiation, not discovered afterward. Buyers of unionized businesses should treat labour relations review as a core diligence item, not a formality.