Introduction

Two co-founders. Equal ownership. A disagreement that has progressed from tension to impasse. The corporation is still operating, still generating revenue, but the relationship between the owners is broken. What happens next — legally and from a tax perspective — depends almost entirely on whether a shareholders agreement exists, and what it says.

Scenario: Equal Shareholders, No Agreement

Marcus and Priya each own 50% of a technology services corporation they co-founded four years ago. The corporation is profitable — approximately $400,000 in annual net income. There is no shareholders agreement. Marcus wants to sell the business; Priya wants to continue operating it.

With equal ownership and no shareholders agreement, neither party can act unilaterally. Every major corporate decision — declaring a dividend, selling assets, changing the business direction — requires majority approval at the board or shareholder level. A 50/50 split with disagreement is a true deadlock.

The options without an agreement:

The parties negotiate a buyout — one buys the other out at a mutually agreed price. This is the most efficient outcome but requires both parties to agree on value.

One party sells to a third party — but the other shareholder (without a ROFR clause in the agreement) cannot prevent it. An unwanted third party can become a 50% co-owner.

One party applies to court under the Ontario Business Corporations Act (section 207) for a court-ordered buyout or dissolution — arguing that the affairs of the corporation are being conducted in a manner oppressive to the applicant. This is expensive, slow, and uncertain.

The corporation can be wound up voluntarily if both parties agree — but they do not agree on anything at this point.

The Tax Consequences of the Resolution Options

Negotiated buyout (one buys the other's shares):

The selling shareholder realises a capital gain on the difference between the sale price and their ACB. Where the shares qualify as QSBC shares, the LCGE may apply, sheltering the gain up to the exemption limit.

The buying shareholder pays for the shares personally (or through a holding company), adjusting their ACB upward for the acquired shares. No immediate tax event for the buyer.

Court-ordered buyout:

The same capital gain analysis applies to the selling shareholder. The timing and pricing are determined by the court (or a court-appointed valuator) rather than by negotiation — which may produce a different price than what either party would have accepted voluntarily.

Dissolution:

If the impasse leads to dissolution, the corporation is wound up and assets distributed. The tax consequences of dissolution — as discussed in Article 78 — apply to both shareholders equally. The capital dividend account, RDTOH, and retained earnings are all distributed in their proper order.

The Shotgun in Action

If a shareholders agreement with a shotgun clause existed, either party could trigger it. Marcus sets a price at which he offers to buy Priya's shares — or to sell his own shares to Priya at the same price. Priya must choose. The shotgun forces a resolution at a price that neither party has strong incentive to manipulate, because they do not know in advance which side of the transaction they will be on.

The tax analysis of the shotgun transaction is the same as a negotiated buyout — capital gain for the seller, ACB adjustment for the buyer, LCGE if applicable.

The Lesson for Active Co-Founder Corporations

The existence of a shareholders agreement with a clear buyout mechanism — shotgun, ROFR, or otherwise — and a funding mechanism (life insurance, agreed personal reserves, or external financing commitment) converts a potentially company-destroying dispute into a manageable transition.

The absence of such an agreement means every dispute is resolved by litigation or by one of the parties conceding something they should not have to concede.

When to Speak With a CPA

For co-founders who are in an active dispute, a CPA can model the tax consequences of the available resolution options and help identify the most tax-efficient path to resolution. For co-founders who are not in a dispute, the lesson from this scenario is to establish a shareholders agreement before one arises.

Rotaru CPA works with co-founders and co-shareholders on governance structure and the tax implications of shareholder transitions. Book a consultation to discuss your shareholder structure.