If you’re going into business with a partner, investor, or co-founder, you need a shareholders agreement. Not someday. Not after things get complicated. Now, before anything goes sideways.

Most small business owners skip this step because it feels unnecessary when everyone gets along. That’s exactly the problem. You don’t need a shareholders agreement when things are good. You need it for the day they aren’t.

This guide breaks down what a shareholders agreement is, why it matters, and what to include in one so you can protect your business, your investment, and your relationships before they’re tested.

What Is a Shareholders Agreement?

A shareholders agreement is a private contract between the owners of a company that governs how the business is run, how decisions are made, and what happens when someone wants to leave, sell their shares, or dies. It sits alongside your corporate bylaws or operating agreement and fills in the gaps that those documents often leave open.

While bylaws are more formal and public-facing, a shareholders agreement is typically confidential and flexible. You can customize it to fit your specific situation, your industry, and your relationships.

It is not just for corporations. If you operate as an LLC with multiple members, you’d typically use an operating agreement for similar purposes. But the core logic is the same: get the rules in writing before anyone needs to use them.

Why Small Business Owners Skip It (And Why That’s a Mistake)

There are a few reasons small business owners avoid shareholders agreements. First, they trust their partners. Second, they don’t want to spend money on legal fees. Third, it feels like planning for failure.

Here’s the reality: not having one is planning for failure. Without a shareholders agreement, your default rules come from your state or country’s corporate law, which was written for generic businesses, not yours. When a disagreement arises and they always do eventually, someone’s default rights might be very different from what you both assumed.

Business divorces are among the most expensive and emotionally draining events a small business owner can go through. A well-drafted shareholders agreement won’t prevent all conflict, but it gives you a map for resolving it without blowing up everything you’ve built.

What to Include in a Shareholders Agreement

Every agreement is different, but here are the core elements most small businesses should address:

Ownership and Share Structure

Spell out exactly who owns what percentage of the company and what class of shares they hold. If there are different share classes with different voting rights or dividend rights, those need to be clearly defined. Ambiguity here creates conflict later.

Decision-Making and Voting Rights

Who gets to vote on what? A 50-50 partnership is notoriously risky because deadlocks can paralyze the business. Your agreement should address how everyday operational decisions are made versus major strategic ones, and what happens if the shareholders can’t agree. Some agreements include a tie-breaking mechanism or a list of decisions that require unanimous consent.

Roles, Responsibilities, and Compensation

If shareholders are also active in the business, outline what each person is responsible for and what they’ll be paid. This prevents situations where one partner feels they’re doing more work for the same ownership stake. Include how and when compensation can be adjusted, and who has authority to make those changes.

Transfer Restrictions and Right of First Refusal

What happens if a shareholder wants to sell their stake? Without restrictions, they could legally sell to anyone, including a competitor or someone the other partners don’t want involved. A right of first refusal clause gives existing shareholders the opportunity to buy out a departing partner before they can sell to an outsider. This is one of the most important protections you can have.

Drag-Along and Tag-Along Rights

A drag-along clause allows a majority shareholder to force minority shareholders to join a sale of the company under the same terms. A tag-along clause protects minority shareholders by giving them the right to join a sale if the majority decides to sell. Both provisions matter if there’s any chance your business might be acquired one day.

Buy-Sell Provisions

A buy-sell clause, sometimes called a shotgun clause, sets the rules for what happens when one partner wants out or when the relationship breaks down. One common mechanism lets one partner name a price at which they’ll either buy the other out or sell their own shares. The other partner must choose which side of the deal they want to take. It keeps valuations honest because the proposing partner doesn’t know which side they’ll end up on.

Death, Disability, and Divorce

What happens to a shareholder’s stake if they die or become incapacitated? What if their shares end up being part of a divorce settlement? Without clear provisions, you might end up in business with a deceased partner’s estate or their ex-spouse. Address these scenarios directly in the agreement and consider pairing it with life insurance to fund a buyout if needed.

Non-Compete and Confidentiality

If a shareholder leaves, you want protections that prevent them from immediately starting a competing business using everything they learned from yours. A non-compete clause limits where they can work and what they can do for a period of time after leaving. A confidentiality clause protects your trade secrets, client lists, and business methods. The enforceability of these clauses varies by jurisdiction, so get local legal advice.

Dispute Resolution

Specify how disputes will be handled. Mediation, arbitration, and litigation all carry different costs and timelines. Many small business owners prefer arbitration or mediation because they’re faster and more private than going to court. Agreeing on this process in advance saves significant time and money if a dispute ever occurs.

How to Get a Shareholders Agreement Done the Right Way

You have two real options: hire a business attorney to draft one from scratch, or use a legal document service to get a solid foundation and then have a lawyer review it.

For a straightforward two-partner business, a reputable legal service can produce a professional shareholders agreement that covers all the essentials. LegalZoom is one option that small business owners have used for years to get foundational business documents without paying full attorney rates. For more complex structures, especially with outside investors, you’ll want a business attorney involved from the start.

Either way, don’t try to download a free template and call it done. Shareholders agreements are highly jurisdiction-specific and fact-specific. A poorly written one can be worse than having none at all, because it creates false confidence while leaving critical issues unresolved.

If you’ve already been in business with a partner for a while without one, it’s not too late. Have an open conversation, agree on the key terms, and then get it in writing. The longer you wait, the more likely a conflict is to arise before you’re protected.

Keep It Current

A shareholders agreement isn’t a set-it-and-forget-it document. As your business grows, brings in new investors, or changes structure, review the agreement and update it accordingly. Major life events, like a partner getting married, having children, or considering retirement, are also good triggers for a review.

Many business owners review their agreements annually alongside their financial planning. Pairing this with your exit planning strategy makes especially good sense, since both documents work together to define what your stake in the business is ultimately worth and how it can be transferred.

If you have partners who contributed sweat equity rather than cash, make sure the agreement reflects how that ownership was earned and what happens to it if they leave early. You can read more about structuring those arrangements in our guide on using sweat equity to attract talent and grow your small business.

The Bottom Line

A shareholders agreement is one of the most important legal documents a multi-owner small business can have. It protects you when relationships change, when someone wants out, and when the unexpected happens. It also forces difficult conversations early, when everyone is still aligned and motivated to find fair solutions.

The cost of drafting one is small compared to the cost of not having one when you need it. If you have a business partner and no agreement in place, this is the week to fix that.

For more resources on protecting and growing your business the right way, check out our guide on writing a business partnership agreement that actually protects you.

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