Reviewing Corporate Minute Books Before Buying a Business in Ontario

If you're buying the shares of an Ontario corporation, you're not just buying its business — you're buying the corporation itself, exactly as it legally exists, with all its history intact. The minute book is where that legal history is supposed to be recorded. When it's incomplete, disorganized, or inconsistent with what the seller tells you, that's rarely just an administrative inconvenience. It's a sign worth taking seriously.

What's Supposed to Be in a Minute Book

A minute book is the corporation's own record of its legal life. For an Ontario corporation, it typically includes:

• Articles of incorporation and any articles of amendment
• Corporate bylaws
• The register of directors and officers, and any resolutions appointing or removing them
• The register of shareholders and share transfers
• Share certificates issued to shareholders
• Minutes or resolutions of directors' and shareholders' meetings, including annual approvals
• Records of any name changes, amalgamations, or other significant corporate changes

Ontario's Business Corporations Act sets baseline expectations for what records a corporation is expected to maintain. In practice, many small and mid-sized corporations fall short of a perfectly maintained minute book — but there's a meaningful difference between minor administrative gaps and a record that's so incomplete it's unclear who actually owns the shares you're about to buy.

Why This Matters Mainly in a Share Purchase

In an asset purchase, you're buying specific assets, not the corporation itself — the minute book's contents are largely the seller's own concern, since the corporation (with its history) stays behind with the seller.

In a share purchase, it's the opposite. You're acquiring the corporation exactly as it exists on paper, which means:

• You need the minute book to actually confirm who the current shareholders are and how many shares they hold, since that's what you're buying.
• Missing resolutions or share transfer records can create genuine uncertainty about corporate ownership — a serious problem when ownership is the entire subject of the transaction.
• Past director and officer decisions, properly or improperly documented, are part of what you're inheriting along with the company.

This is one of the clearest examples of why the choice between an asset purchase and a share purchase changes what due diligence actually needs to focus on.

Red Flags in an Incomplete or Inconsistent Minute Book

• [ ] Share certificates that don't match the share register, or a share register that doesn't match what the seller says about ownership.
• [ ] Missing annual resolutions approving financial statements or reappointing directors, especially for multiple consecutive years.
• [ ] No record of share issuances or transfers that the seller describes as having happened.
• [ ] Directors or officers listed who the seller says are no longer involved, with no resignation or removal on record.
• [ ] Corporate name changes, amalgamations, or restructurings mentioned informally but not documented in the minute book.
• [ ] A minute book that looks freshly assembled all at once, rather than built up naturally over time.

None of these automatically means something is wrong. They mean questions need to be asked and answered before you rely on the seller's description of who owns what.

What a Lawyer Does With the Minute Book

1. Requests the complete minute book directly, rather than relying on a summary of its contents from the seller.
2. Cross-checks the share register and certificates against what the seller has represented about ownership and any prior transactions.
3. Orders a corporate profile report and certificate of status from the Ontario Business Registry, confirming the corporation's existence, good standing, and registered information independently of what's in the minute book itself. Ministry-direct pricing for these was roughly $8 and $26 respectively as of mid-2026 — inexpensive relative to the certainty they provide, though intermediaries may charge more and fees do change, so confirm the current amount.
4. Reviews director and officer history against what's currently represented as the management structure.
5. Flags gaps or inconsistencies for resolution before closing, rather than assuming they'll sort themselves out.

Fixing Problems Before Closing

Where the minute book review turns up gaps, there are a few common ways forward, depending on what's actually missing:

• Corporate clean-up. Missing resolutions can sometimes be prepared and passed to properly document past decisions before closing, bringing the record up to date.
• A closing condition. The purchase agreement can require the minute book to be complete and in good order as a condition of closing, putting the obligation on the seller to fix it.
• Representations and warranties. The seller can be asked to specifically confirm the accuracy of the share register and the completeness of the corporate records, backed by an indemnity if that turns out to be wrong.
• Price or timeline adjustment. In more serious cases, resolving ownership uncertainty may simply take longer than expected, and the closing timeline should reflect that rather than rushing past an unresolved question.

Frequently asked questions