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ARTICLE · 02 JANUARY 2026

Ontario's Amendments To The Construction Act Take Effect January 1, 2026

Significant amendments to Ontario's Construction Act (the "Act") will come into force on January 1, 2026.

CanadaReal Estate and Construction

Significant amendments to Ontario's Construction Act (the "Act") will come into force on January 1, 2026.

These amendments were first introduced through Bill 216, Building Ontario for You Act (Budget Measures), 2024 ("Bill 216"), and subsequently refined by Bill 60, Fighting Delays and Building Faster Act, 2025 ("Bill 60"), together with a new set of regulations (O. Reg. 266/25, which amends O. Reg. 304/18).

The upcoming changes to the Act will, among other things, create a new statutory framework for holdback, adjudication, bonding, lien and trust procedures, and establish new statutory notices across the construction industry.

This update provides a summary of the key amendments coming into force, and follows our previous bulletins on the Act's proposed amendments under Bill 216 initially, and its related regulatory changes.

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