The Essential Contracts Every Small Business Needs

Handshake deals feel friendly until something goes wrong. Clear written contracts protect your cash, your work and your relationships by setting expectations before problems start. Here are the agreements most small businesses need, what each one should cover and how to manage them without a legal department.

A contract is simply an agreement that the law will enforce. Some can be verbal, but a written contract makes it far easier to prove what was agreed and to resolve misunderstandings. For a small business, contracts are less about winning disputes and more about preventing them: when both sides know who does what, by when and for how much, there is much less to argue about.

You do not need dozens of agreements. Most small businesses use a handful of core documents, adapted for each customer, supplier or team member. The trick is to get those few documents right and to use them consistently.

The core contracts at a glance

1. Client service agreement

If you sell services, this is the contract you will use most. Some businesses use a master services agreement (MSA) with general terms, plus a short statement of work (SOW) for each project. Others combine everything into one document.

A strong client agreement covers:

• Scope: exactly what you will deliver, and just as important, what is not included
• Timeline: milestones, deadlines and what happens if the client causes delays
• Price and payment: fees, deposits, invoicing schedule, due dates and late payment terms
• Changes: how extra requests are approved and priced
• Ownership: who owns the work and when ownership transfers, often after full payment
• Liability: limits on how much either side can claim if something goes wrong
• Termination: how either side can end the agreement and what is owed if they do

2. Terms and conditions of sale

If you sell products, especially online, your terms and conditions set the rules for every order. They usually cover pricing, payment, delivery, risk of loss, returns, refunds and warranties. Consumer protection law often limits what you can include. For example, many countries give consumers rights to cancel certain online purchases or to receive goods that match their description, and you generally cannot contract out of those rights.

3. Website terms of use

Website terms set rules for how visitors use your site or app: acceptable use, account rules, intellectual property in your content and limits on your liability. They are separate from a privacy policy, which explains how you handle personal data. The guide on privacy policies and data protection on this site covers that side in more detail.

4. Non-disclosure agreement

An NDA protects confidential information you share with someone else, such as a potential partner, investor, supplier or contractor. It can be one-way, where only you share information, or mutual, where both sides share.

Key points to define include what counts as confidential, what the other party may and may not do with it, how long the obligation lasts and what happens to the information when the relationship ends. Keep NDAs focused. Overly broad NDAs can be hard to enforce and may put off the people you want to work with.

5. Independent contractor agreement

When you hire freelancers or consultants, a written agreement should cover the work, deadlines, fees, invoicing, confidentiality and, crucially, ownership of what they create. In many countries, including the US and UK, a contractor may own the copyright in their work by default unless a written agreement assigns it to you. An assignment clause, often called an IP assignment, fixes that.

The agreement should also reflect a genuine independent relationship. A contract that says "contractor" does not override how the relationship works in practice. The separate guide on independent contractor versus employee on this site explains how authorities decide.

6. Employment contracts and offer letters

Requirements differ sharply by country. In the UK, employers must give employees and workers a written statement of employment particulars, covering items such as pay, hours and holiday, from their first day. Many EU countries have similar rules. In most US states, employment is "at will" and a simple offer letter is common, but you should avoid wording that accidentally promises job security. Employees may also sign confidentiality and IP assignment terms. Restrictive covenants such as non-competes are heavily regulated and, in some places, largely unenforceable, so get advice before using them.

7. Supplier and vendor agreements

Larger suppliers will often send you their own standard terms. Read them before signing, paying particular attention to minimum order quantities, price changes, delivery responsibilities, quality standards, payment terms and how you can exit. If a supplier is critical to your business, it is worth negotiating key points rather than accepting the default.

8. Founder, partner or operating agreements

If you own the business with others, an agreement between owners is one of the most important documents you will ever sign. Depending on your structure it may be a partnership agreement, an LLC operating agreement or a shareholders' agreement. It should cover ownership splits, roles, decision making, how new money comes in, what happens if someone leaves and how disputes are resolved. The guide on business structure on this site explains how your entity type affects which agreement applies.

Clauses small businesses often overlook

Beyond the headline terms, a few clauses quietly decide how smoothly things go when a relationship gets difficult.

• Governing law and venue: which country's or state's law applies, and where disputes are heard. This matters a lot when you work across borders.
• Dispute resolution: whether disagreements go first to negotiation, mediation or arbitration before court.
• Notice: how formal notices must be sent, such as to a named email address, so nobody can claim they were never told.
• Force majeure: what happens when events outside either party's control prevent performance.
• Entire agreement: confirms that the written contract replaces earlier promises, which avoids arguments about what was said in early emails.

These clauses are often called boilerplate, but they are worth reading every time.

How to put your contracts in place

1. List your relationships. Write down who you deal with regularly: types of clients, suppliers, contractors, employees and co-owners.
2. Match each to a contract. Use the table above to decide which agreement you need for each relationship.
3. Start from a reliable base. Use templates from reputable sources, industry bodies or a lawyer, and adapt them to your business and jurisdiction.
4. Get key documents reviewed. Have a qualified lawyer review your most used and highest risk contracts, such as client agreements and owner agreements.
5. Sign properly. Electronic signatures are widely recognized, for example under the US ESIGN Act and UETA and the EU's eIDAS regulation, though some document types still need special formalities.
6. Store and track. Keep signed copies in one secure place, and track renewal, notice and expiry dates.

Frequently asked questions

This article is general information, not legal advice. Contract law and consumer protection rules differ by country, state and city and change over time. Consult a qualified lawyer for advice on your specific situation.

The bottom line

A small set of well-drafted contracts covers most of what a small business needs: client terms, website terms, NDAs, contractor and employee agreements, supplier terms and an agreement between owners. Write scope and payment terms clearly, protect ownership of your work, sign properly and keep everything organized. Contracts work best when they prevent disputes rather than settle them.