All You Need To Know About Agency Relationships & Agreements

The law of agency is the set of rules that decides when one person can act for another person or business, and when that action can legally bind the business. In practice, an agency relationship exists when an agent has authority to act for a principal, whether that authority is written down, implied from the role, or created by how the principal presents the agent to others.

If you're growing a business, agency can be incredibly useful. A salesperson might negotiate deals, a lead-generation partner might introduce customers, or a consultant might speak to suppliers for you. The risk is that unclear authority, commission rules, or customer promises can leave your business bound to something you never meant to approve.

What Is The Law Of Agency?

The law of agency explains the legal relationship between:

• the principal, being the person or business on whose behalf someone acts, and
• the agent, being the person or business authorised to act for the principal.

In simple terms, an agent can sometimes stand in your shoes for a particular purpose. If the agent is acting within their authority, their actions can affect your legal position. For example, they may be able to negotiate a price, accept an order, or sign a customer contract on your behalf.

This is why the law of agency matters so much in contract law. A contract doesn't always need to be signed by a director or owner personally. If the person signing had authority, or appeared to have authority because of what your business did, the contract may still bind your business.

Why Agency Is Important In Business

Agency relationships help businesses scale. You can reach more customers, enter new markets, and delegate specialist tasks without doing everything yourself.

However, agency also creates risk. If you give someone the title of "Sales Director", access to your CRM, a company email address, and the ability to lead negotiations, a customer may reasonably think that person can approve a deal. If your internal rule says only a director can sign, but you never communicated that externally, your business may still have a problem.

What Is An Agency Relationship?

An agency relationship is where an agent has authority to act on behalf of a principal and can affect the principal's legal rights or obligations.

Agency arrangements show up in everyday New Zealand business more often than people realise. Common examples include:

• Sales agents who negotiate or introduce customer contracts for your products or services
• Recruitment agents presenting candidates and helping employers manage offers
• Marketing or lead-generation agents who approach potential customers for you
• Purchasing agents who source stock, equipment, or services on your behalf
• Distribution or reseller-style agents who take orders or introduce buyers as an intermediary
• Consultants who liaise with suppliers or partners and are authorised to make certain decisions for you

Sometimes the relationship is obvious and written down. Other times, it's created informally through conduct. That's where issues usually start, because one person may think the agent is only introducing opportunities while the other thinks the agent can commit the business.

Agent Principal Relationship Meaning In Plain English

The agent-principal relationship isn't just about helping or recommending. The key question is whether the agent has authority to represent the principal in a way that has legal consequences.

For example, a marketing contractor who designs social media posts is usually just providing services. But if that same person is authorised to tell customers, "We accept your order on these terms," they may also be acting as your agent for that purpose.

How Does An Agent Get Authority To Act For You?

Authority is the heart of any agency relationship. If you're the principal, you want to control it clearly. If you're the agent, or a customer dealing with an agent, you want certainty that authority exists.

Actual Authority: Express Or Implied

Actual authority is authority the principal genuinely gives the agent.

• Express actual authority is clearly granted, usually in writing. For example: "You may sign customer contracts up to $10,000 plus GST."
• Implied actual authority isn't spelled out, but is inferred from what is necessary or usual for the role. For example, a purchasing manager may have authority to order standard stock within an approved budget.

Apparent Or Ostensible Authority

Apparent authority, also called ostensible authority, focuses on what the other party reasonably believed because of the principal's conduct.

If your business puts someone forward as its representative, for example by giving them a senior title, email signature, business card, pricing sheet, or authority to lead negotiations, a third party may reasonably assume they can act for you. In some cases, that assumption can bind your business, even if you privately told the agent not to sign anything.

The practical rule is simple: if you don't want someone to have authority, don't send outward signals that they do. Put boundaries in writing, manage job titles carefully, and tell customers how contracts must be approved.

Ratification: Approving It After The Fact

Sometimes an agent acts outside their authority, but the principal later accepts the benefit of the deal or otherwise approves it. This can amount to ratification, meaning the principal adopts the contract after it has been made.

If someone has acted outside authority, respond quickly and consistently. Accepting payments, delivering goods, or continuing with the arrangement can make it harder to say later that the deal was never approved.

Proof Of Authority In Practice

In day-to-day business, authority is commonly evidenced through:

• a written agency agreement
• a board, director, or management approval process for companies
• an Authority To Act Form for a specific matter or transaction
• internal signing policies and delegation registers
• clear customer-facing wording, such as "All contracts are subject to director approval"

What Duties Apply In An Agent Principal Relationship?

Agency isn't only about power. It's also about responsibility.

Agents often owe duties that are stricter than an ordinary commercial contractor relationship. Many of these duties come from common law and equity, so they can apply even if your agreement doesn't spell them out.

Duties Agents Commonly Owe Principals

An agent will commonly be expected to:

• follow the principal's lawful instructions within the agreed scope
• act in good faith and for proper purposes
• avoid conflicts of interest, or disclose and manage them properly
• not make secret profits or receive undisclosed commissions
• exercise reasonable care and skill
• keep proper accounts and pass on money or property received for the principal
• keep confidential information secure and only use it for authorised purposes

Some of these obligations overlap with what people call fiduciary duty. This means the agent must prioritise the principal's interests in matters within the agency role.

Duties Principals Commonly Owe Agents

Principals also have obligations. These usually include:

• paying the agreed fee or commission when the entitlement is triggered
• cooperating so the agent can perform their role
• reimbursing authorised expenses, if the agreement says so
• not undermining the agent's work in a way that breaches the agreement
• providing accurate information about the goods or services the agent is promoting

Many disagreements happen because the parties never clearly agreed when commission is earned, what the agent can promise, and who owns the customer relationship.

Is An Agent The Same As A Contractor Or Employee?

Not always. An agent can be an employee, an independent contractor, or a separate business. The defining feature of agency isn't the label. It's whether the person has authority to represent you and create legal consequences for you.

For example, a contractor might simply deliver a service to you. But if they negotiate and sign customer contracts in your name, you have moved into agency territory and should document that properly, often alongside a Service Agreement or similar arrangement.

There's also employment risk to manage. Under the Employment Relations Act 2000, the real nature of the relationship matters. Calling someone a contractor doesn't automatically make them one if, in reality, you control how, when, and where they work like an employee.

Recent contractor status reforms have focused on giving businesses and workers more certainty through a contractor gateway test for certain working arrangements. In broad terms, these settings look at factors such as having a written contractor agreement, not restricting the person from working for others, not requiring fixed availability in the same way as an employee, and not penalising them for declining extra work. If the gateway isn't satisfied, the usual assessment of the real nature of the relationship remains important.

If your agent is an individual and you control their hours, tools, targets, uniform, pricing, scripts, and work methods, don't rely on the word "agent" to solve the issue. It's worth using a properly tailored Contractor Agreement where appropriate and making sure your actual working practices match the paperwork.

What Should An Agency Agreement Include?

A good agency agreement is your rulebook. It should answer the practical questions before they become costly problems.

1. Parties And Business Details

Identify the correct legal entities. If you operate through a company, make sure the company, not you personally, is the principal. You can check company names, NZBNs, and director details through the Companies Office register.

2. Appointment And Exclusivity

State whether the agent is appointed exclusively or non-exclusively. If the agent can represent competitors or similar businesses, spell out what disclosure and conflict rules apply.

3. Scope Of Authority

This is the make-or-break section. It should cover what the agent can negotiate, whether they can sign contracts, approval limits, pricing rules, discounting, credit terms, and who can make binding promises to customers.

4. Commission, Fees, And Payment Triggers

Commission disputes are common. Your agreement should state the commission rate, whether amounts are GST inclusive or exclusive, when commission is earned, when it's paid, and what happens if the customer cancels, defaults, seeks a refund, or upgrades later.

Also consider a tail period. This deals with whether commission is payable if the agent introduced a customer before termination but the deal closes after the relationship ends.

5. Confidentiality, IP, And Customer Data

Agents often access pricing, customer lists, strategy, and product information. Your agreement should include a strong Confidentiality Clause, clear IP ownership wording, and practical rules for access to systems.

If personal information is involved, such as names, phone numbers, email addresses, or CRM notes, the Privacy Act 2020 matters. You should set out who owns the database, whether the agent can download contacts, what security standards apply, and what happens to customer data when the relationship ends.

6. Sales Conduct And Consumer Compliance

Under the Fair Trading Act 1986, businesses must not engage in misleading or deceptive conduct in trade. If your agent exaggerates results, hides fees, or misstates delivery times, your business may be exposed.

Give agents approved marketing claims, pricing rules, disclaimers, and training on what they can and can't say. If the agent sells to consumers, your customer-facing processes should also align with the Consumer Guarantees Act 1993, including refund, repair, replacement, quality, and fitness for purpose obligations.

7. Restraints, Non-Circumvention, And Competition Issues

You may want to stop an agent from approaching your customers after termination or using your confidential information to compete. Restraint and non-circumvention clauses can be enforceable in New Zealand if they're reasonable in time, geography, and scope.

Exclusivity, resale pricing, and restrictions across a network can also raise Commerce Act 1986 considerations depending on the market. Most ordinary small business agency arrangements are low risk, but pricing controls and broad exclusivity should be drafted carefully.

8. Termination And Handover

Set out the term, notice periods, termination for serious breach, final commission calculations, return of property, removal of system access, and customer handover steps.

Agency Agreement Outline To Tailor

A lawyer should tailor the agreement to your business model, but a useful outline is:

1. Parties: legal names, company numbers, NZBNs, and contact details.
2. Appointment: what the agent is appointed to do and whether the role is exclusive.
3. Authority: what the agent can approve, negotiate, sign, or promise.
4. Commission And Fees: rates, triggers, GST treatment, payment timing, clawbacks, and tail periods.
5. Compliance: Fair Trading Act, Consumer Guarantees Act, privacy, approved scripts, and marketing rules.
6. Confidentiality And IP: business information, customer data, branding, copyright, and trade marks.
7. Term And Termination: start date, renewal, notice, serious breach, and handover.
8. Relationship Status: whether the agent is an independent contractor, employee, or separate business, and how that works in practice.

A Worked Example And Setup Checklist

Say your Wellington software company appoints Mia as a non-exclusive sales agent. The agreement says Mia can introduce leads and negotiate pricing, but only a director can sign contracts. Mia earns 8% commission on the first year's subscription fees when the customer pays the first invoice. There's a 90-day tail period for introduced leads.

Mia introduces Harbour Clinics and negotiates a 12-month subscription at $3,000 per month plus GST. The annual value is $36,000 plus GST. Harbour Clinics signs your standard order form with a director, then pays the first invoice.

Under that wording, Mia's commission is 8% of $36,000, which is $2,880. If the agreement says commission is calculated on amounts excluding GST, the GST component isn't included in the calculation. If Harbour Clinics cancels within a 30-day cooling-off period and receives a full refund, the agreement should say whether commission is cancelled or clawed back.

Now change one fact. Mia signs a side letter promising a 50% discount for the second year, even though the agreement says only directors can approve renewal discounts. If your company gave Mia a title like "Head of Partnerships", let her run the negotiation, and never told Harbour Clinics that director approval was required, Harbour Clinics may argue Mia had apparent authority. A clear agency agreement helps, but your external process matters too.

Step-By-Step Checklist Before You Appoint An Agent

1. Map the role: decide whether the agent is introducing leads, negotiating, taking orders, signing contracts, or managing accounts.
2. Set authority limits: document signing limits, pricing limits, discount rules, refund rules, and approval pathways.
3. Choose the structure: decide whether the person is an employee, contractor, or separate business, and check the working reality matches the paperwork. If you're still choosing your broader setup, a legal health check can help you spot common business compliance gaps.
4. Define commission: write down the exact trigger, calculation method, GST treatment, payment date, clawbacks, and tail period.
5. Protect information: limit CRM access, require MFA, control downloads, and set return or deletion rules on termination.
6. Control customer claims: provide approved scripts, pricing documents, product claims, and escalation rules.
7. Update outward signals: email signatures, job titles, proposals, and order forms should match the authority you actually want the agent to have.

Key Takeaways

• The law of agency decides when an agent can act for a principal and when that action can bind the principal in contract law.
• An agency relationship can arise through express authority, implied authority, apparent authority, or later ratification, so your conduct matters as much as your documents.
• Agents commonly owe duties to act in good faith, avoid conflicts, protect confidential information, account for money, and avoid secret profits.
• A strong agency agreement should cover authority limits, commission triggers, confidentiality, customer data, sales conduct, termination, and handover.
• New Zealand businesses should also manage Fair Trading Act, Consumer Guarantees Act, Privacy Act, Commerce Act, Companies Act, and employment classification risks.
• Your internal approval rules should match what customers and suppliers see, otherwise apparent authority can create problems.

If you'd like help with agency agreements, authority limits, commission clauses, or contractor arrangements, you can reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.