Introduction

A shareholder agreement is one of the most important documents a multi-shareholder corporation can have — and one of the most frequently deferred. The time to draft a shareholder agreement is when relationships are healthy and the future feels straightforward. By the time a dispute arises, a partner wants to exit, or a triggering event occurs, the absence of an agreement makes every outcome more contentious and more expensive.

This article explains what a shareholders agreement covers, why it matters, and how it intersects with the corporation's tax and financial planning.

What Is a Shareholder Agreement?

A shareholders agreement is a contract between the shareholders of a corporation (and typically the corporation itself as a party) that governs:

•  How major corporate decisions are made

•  What happens when a shareholder wants to sell their shares

•  What happens if a shareholder dies, becomes incapacitated, or is convicted of a crime

•  How disputes between shareholders are resolved

•  Restrictions on transferring shares to third parties

•  Non-competition and confidentiality obligations

•  Funding mechanisms for shareholder buyouts

It sits alongside the corporation's articles and by-laws but operates as a private contract between the parties — it is not filed publicly.

The Shotgun Clause

One of the most discussed provisions in a shareholders agreement is the shotgun clause (also called a "buy-sell" or "Texas shootout" clause). Under this provision, if shareholder relationships break down and neither party can agree on a price or a path forward, one shareholder can offer to buy the other's shares at a specified price — and the receiving shareholder must either accept that price and sell, or reverse the offer and buy the initiating shareholder out at the same price.

The shotgun mechanism is a dispute resolution tool of last resort. Its primary value is as a deterrent — knowing that either party can trigger it encourages good-faith negotiation before the relationship deteriorates to that point.

The tax implications of a shotgun buyout depend on the price set, the ACB of the shares being transferred, and whether the transaction qualifies for LCGE treatment. A CPA should be involved in reviewing the tax position before a shotgun is triggered or executed.

Right of First Refusal vs. Right of First Offer

Many shareholders agreements give remaining shareholders a right of first refusal (ROFR) on any proposed share transfer to a third party — the right to match any bona fide third-party offer before the shareholder can sell externally. This prevents unwanted third parties from entering the shareholder group without the other shareholders having the opportunity to acquire those shares first.

An alternative mechanism is a right of first offer (ROFO) — the departing shareholder must offer their shares to the existing shareholders at a price the departing shareholder sets, before going to market. If the existing shareholders decline, the departing shareholder can then sell to a third party at or above that price.

ROFR and ROFO have different tactical implications that depend on the specific business context and shareholder dynamics.

Valuation Mechanisms

One of the most consequential sections of any shareholders agreement is how shares are valued when a buyout is triggered. Common approaches include:

Formula-based valuation: Shares are valued using a predetermined formula — typically a multiple of EBITDA or revenue, or a book value approach. Simple and predictable, but may not reflect the true market value of the business in all circumstances.

Independent appraisal: An independent business valuator determines fair market value. More accurate but slower and more expensive.

Agreed valuation with periodic review: The parties agree on a value periodically (annually, for example), which applies to any triggering event during that period.

An outdated valuation — one agreed several years earlier that no longer reflects the business's current value — is a common point of contention when a buyout is triggered.

The Interaction With Tax Planning

The shareholder agreement and the corporation's tax structure should be designed coherently. The funding mechanism for buyouts (typically life insurance, as discussed in Article 68), the LCGE implications of share transfers, and the classification of payments as capital vs. income all have tax dimensions that should be considered when the agreement is being drafted, not after a triggering event occurs.

When to Speak With a CPA (Alongside a Lawyer)

The shareholder agreement is primarily a legal document, drafted by a corporate lawyer. The CPA's role is to ensure the financial and tax dimensions of the agreement — valuation, buyout funding, distribution rights, LCGE implications — are correctly addressed alongside the legal provisions. The CPA and lawyer should review the agreement together, not in isolation.

Rotaru CPA works alongside corporate lawyers to ensure the financial and tax dimensions of shareholder agreements are coherent. Book a consultation to review your shareholder structure.