Basics
What is due diligence?
Updated 2026-06
Due diligence is the checking you do before you commit to a deal, a supplier, a customer or a partner. It means confirming the facts you are relying on instead of taking them on trust.
Key facts
- It scales with the decision: small for a minor purchase, deeper for a major one.
- For companies it usually starts with confirming the legal entity and its standing.
- Writing down what you checked is part of doing it well.
Check a company before you commit
Run due diligence on any New Zealand company and see the full picture in one place.