Exclusive Dealing Clauses and Competition Law in the UK

Exclusive dealing can look like a sensible commercial arrangement, right up until a supplier, distributor or platform asks you to commit to buying only from them, selling only their products, or refusing to work with competitors. That is where founders often get caught. Common mistakes include signing exclusivity clauses without checking competition law risk, assuming every exclusive arrangement is automatically illegal, and overlooking how restrictions on online sales, territories or customers can create problems later.

For UK businesses, the real question is not just what is exclusive dealing, but when exclusivity crosses the line from a legitimate business strategy into anti-competitive conduct. The answer depends on the market, the wording of the agreement, and the effect on competitors and customers. This guide explains what exclusive dealing means, when it comes up in day to day business, the main legal risks under UK competition law, and the practical steps to take before you sign a contract or spend money on setup.

Overview

Exclusive dealing is a business arrangement where one party agrees to buy from, sell for, or deal with another party on an exclusive basis. In the UK, these arrangements are not automatically unlawful, but they can breach competition law if they restrict competition in a significant way or have the object or effect of harming the market.

• Check what kind of exclusivity the contract actually creates, such as exclusive supply, exclusive purchasing, territorial restrictions or customer restrictions.
• Assess the market position of each party, because exclusivity is riskier where one side has significant market power.
• Review the practical effect on competitors, resellers and customers, including whether the arrangement blocks market access.
• Consider whether any block exemption or competition law safe harbour may apply, but do not assume it does without checking the details.
• Limit duration, scope and restrictions so the arrangement is no wider than needed for the commercial objective.
• Make sure your written contract matches how the arrangement will work in practice, especially for online sales, pricing, territories and termination rights.

What What Is Exclusive Dealing Means For UK Businesses

Exclusive dealing means one business agrees to trade with another on restricted terms that limit dealings with competitors. The legal issue is whether that restriction is a fair commercial bargain or an anti-competitive restraint.

In plain English, exclusive dealing usually means one of the following:

• A supplier requires a buyer to purchase only, or mostly only, from that supplier.
• A distributor is given the sole right to sell a product in a particular territory or to a particular customer group.
• A retailer agrees not to stock competing products.
• A reseller is stopped from selling outside a territory, through certain channels, or to certain classes of customers.
• A platform or franchisor limits who a business can source from or sell to.

These arrangements are common in the real world. A brand may want exclusivity to justify investment in promotion. A supplier may want a minimum commitment before offering better prices. A distributor may want territory protection before spending money on local launch activity. None of that is automatically unlawful.

The main UK legal framework sits under competition law, especially the Chapter I prohibition in the Competition Act 1998, which broadly prohibits agreements between businesses that prevent, restrict or distort competition within the UK and may affect trade within the UK. Depending on the facts, the Competition and Markets Authority can investigate restrictive vertical agreements, including some exclusive supply and distribution arrangements.

Many exclusive dealing arrangements are vertical agreements, meaning they are between businesses operating at different levels of the supply chain, such as manufacturer and distributor, or wholesaler and retailer. Vertical restrictions can be lawful if they stay within recognised limits. They become riskier where they include more serious restrictions, or where the parties have enough market power that the arrangement may substantially foreclose the market.

Common Forms Of Exclusive Dealing

The label in the contract does not always tell you the legal position. You need to look at what the clause actually does.

• Exclusive purchasing, where the buyer must source only from one supplier.
• Exclusive supply, where the supplier sells only to one buyer in a territory or channel.
• Exclusive distribution, where one distributor gets sole rights in a region or customer segment.
• Single branding, where a retailer or outlet must stock only one brand or category source.
• Non-compete obligations, where a party cannot deal in competing goods or services.
• Territorial and customer restrictions, where sales outside a designated area or class are restricted.

Why Businesses Use It

Exclusivity often has a genuine commercial purpose. It can protect investment, create certainty in a supply chain, improve launch support, and reduce free-riding between distributors.

That said, the same arrangement can also shut rivals out of the market, reduce customer choice, or make it harder for new entrants to compete. This is why founders need to separate the commercial upside from the legal risk. A clause that feels routine in a draft distribution or supplier agreement may need tighter wording, shorter duration or a more limited territory.

When It Becomes A Problem

Exclusive dealing becomes a problem when it goes further than reasonably needed and harms competition. The risk is higher where:

• one party has a strong market position;
• the exclusivity lasts a long time;
• the restrictions cover a large share of the market;
• competitors are effectively blocked from reaching customers or suppliers;
• the arrangement restricts passive sales or online sales in ways competition law does not allow;
• the contract combines exclusivity with resale price controls or other serious restrictions.

Not every breach question has a simple yes or no answer. Context matters, and the same clause may be low risk in one market and high risk in another.

When This Issue Comes Up

Exclusive dealing usually comes up at the contract stage, often when a business is growing quickly and wants certainty. The risk is that commercial urgency pushes legal review to the end, after the main points have already been agreed.

Supplier And Distributor Deals

A common founder moment is when a manufacturer offers better prices on the condition that you buy only from them for two years. Another is when a UK distributor wants sole rights for Scotland, London or a niche customer segment.

These arrangements can be fine, but the details matter. Before you sign a contract, check:

• whether the territory is defined clearly;
• whether online sales are treated differently from physical sales;
• whether the exclusivity is mutual or one-sided;
• whether minimum performance obligations apply;
• what happens if sales targets are missed;
• how either side can terminate the arrangement.

Retail And Hospitality Supply

Exclusive pouring rights, supply agreements for food and drink, and venue-only purchasing obligations can all raise exclusive dealing issues. A café, hotel, bar or events business may be asked to stock one brand only, or to source a key category from a single supplier.

This is where founders often focus on price and rebate terms but miss the wider legal effect. If the clause makes it hard to stock alternatives, or ties the business into long commitments with limited exit rights, the commercial risk can be as important as the competition law risk.

Franchise And Network Models

Franchise systems often include tightly controlled sourcing and branding arrangements. Some level of consistency may be commercially justified, but restrictions still need to be proportionate and properly drafted.

If your business operates through licensees, franchisees or appointed resellers, exclusivity may interact with:

• trade mark control and brand standards;
• quality requirements for approved suppliers;
• territory allocation;
• online marketplace rules;
• non-compete clauses during and after the contract.

Those issues should be looked at together, not as isolated clauses.

Online Selling And Platform Restrictions

Exclusive dealing is not just an offline issue. It can appear in platform terms, online resale arrangements, app distribution, marketplace restrictions and selective distribution systems.

For example, a supplier may try to prevent you from selling on third party marketplaces, from advertising to customers in another territory, or from responding to unsolicited orders outside your allocated region. Some online restrictions can be especially sensitive under competition law.

Before you launch online or expand your ecommerce channels, make sure the sales restrictions in your contracts match what you actually plan to do. This is particularly important for businesses that rely on social commerce, cross-border fulfilment or mixed wholesale and direct-to-consumer models.

Investment And Expansion Deals

Exclusive dealing can also appear in investment and strategic partnership arrangements. A funder, commercial partner or anchor customer may want exclusivity in exchange for early support or guaranteed volumes.

That can make commercial sense, but it should still be tested. A broad exclusivity promise given at an early stage can limit your ability to grow, attract other partners or pivot into adjacent markets later.

Practical Steps And Common Mistakes

The safest approach is to assess exclusivity as a business risk and a legal risk at the same time. A clause can be technically valid on paper and still be commercially damaging if it locks you into the wrong relationship.

Step 1: Identify The Restriction Properly

Start with the exact obligation. Do not rely on the heading alone.

Ask questions such as:

• Are you prevented from buying from competitors, selling to competitors, or stocking competitors' products?
• Is the exclusivity absolute, or is there a minimum purchase threshold that works like exclusivity in practice?
• Does it apply to all products and services, or only a defined category?
• Does it apply only in the UK, or in specific territories?
• Does it cover online sales, passive sales or cross-border orders?
• Does it continue after termination?

Founders often agree to language like “preferred supplier” or “sole partner” without checking whether the operative clauses are much broader than that label suggests.

Step 2: Check Market Power And Competitive Effect

The bigger the market influence, the greater the competition law risk. A small startup appointing one distributor for a limited launch may present little concern. A dominant supplier tying up key retailers can be very different.

You should look at factors such as:

• market share of each party;
• number of alternative suppliers or routes to market;
• barriers for new entrants;
• whether the arrangement locks up a significant part of demand or supply;
• whether customers will still have realistic choices.

This is not always a simple exercise, but even a basic commercial assessment can highlight where specialist review is needed.

Step 3: Limit Duration, Scope And Territory

Shorter and narrower restrictions are generally easier to justify than broad and open-ended ones. If exclusivity is meant to support launch investment, the contract should say so and should last only as long as reasonably needed.

Common ways to reduce risk include:

• setting a fixed review date;
• limiting exclusivity to a product line, channel or territory;
• allowing exceptions for named customers or strategic accounts;
• linking exclusivity to meeting sales targets or performance milestones;
• building in clear termination rights if the arrangement stops making commercial sense.

Step 4: Make The Contract Work In Practice

A badly drafted exclusivity clause causes problems even where competition law is not the main issue. Ambiguous wording can lead to disputes about channels, territories, targets, commission, renewal and post-termination conduct.

Before you sign, make sure the agreement covers:

• the exact products or services covered;
• territory and customer group definitions;
• whether direct sales are allowed;
• whether online sales are allowed and on what terms;
• minimum purchase or performance obligations;
• reporting and audit rights;
• duration, renewal and termination;
• what happens to stock, branding and confidential information when the deal ends.

This is also where related legal issues often show up. If a reseller will use your branding, your trade mark position matters. If sales data will be shared, your privacy policy and UK GDPR transparency may matter. If staff are dedicated to the arrangement, employment contracts and incentive structures may need review. If premises are involved, a commercial lease may affect what can be sold on site.

Common Mistakes Businesses Make

The most common mistake is assuming exclusivity is either always legal or always illegal. Neither view is right.

Other frequent mistakes include:

• agreeing broad non-compete wording without a clear product or service definition;
• ignoring online sales restrictions because the initial deal is focused on physical channels;
• failing to include performance triggers that justify continued exclusivity;
• setting long terms with automatic renewal and weak termination rights;
• combining exclusivity with resale price restrictions or pressure on discounting;
• forgetting that side emails, sales policies and onboarding materials may affect how the arrangement is judged in practice.

What To Do Before You Sign

Before you spend money on setup, pressure-test the arrangement commercially and legally. A sensible pre-signing process usually includes:

• reviewing the proposed exclusivity against your growth plan and sales channels;
• mapping realistic alternatives if the relationship breaks down;
• checking whether the clause could restrict future fundraising, expansion or partnerships;
• making sure the agreement uses clear definitions and workable targets;
• getting legal advice or a contract review where market share, online restrictions or broad non-competes raise competition concerns.

If you are the party proposing exclusivity, the same discipline applies. Well-drafted, proportionate clauses are more likely to hold up and less likely to cause a dispute with the other side.

FAQs

Is exclusive dealing illegal in the UK?

No. Exclusive dealing is not automatically illegal in the UK. It can be lawful where it is proportionate and does not have the object or effect of restricting competition in a prohibited way.

What is the difference between exclusive dealing and exclusive distribution?

Exclusive distribution is one form of exclusive dealing. Exclusive dealing is the broader concept, covering arrangements such as exclusive purchasing, single branding, territorial restrictions and customer restrictions.

Can a supplier stop me selling competitors' products?

Sometimes, but not always. A non-compete or single-branding clause may be enforceable in some situations, but the risk rises if the clause is broad, long-term, or harmful to competition in the relevant market.

Do online sales restrictions raise special issues?

Yes. Restrictions affecting online sales, passive sales or access to online marketplaces can raise specific competition law concerns. These terms should be checked carefully before you launch online or expand to new channels.

What should be in an exclusivity agreement?

The agreement should clearly define the products or services covered, territory, customer groups, duration, targets, termination rights, online sales rules, and what happens when the deal ends. It should also be consistent with your trade mark, privacy and wider commercial arrangements.

Key Takeaways

• Exclusive dealing means a business relationship includes restrictions on buying, selling or dealing with competitors.
• These arrangements are common and not automatically unlawful in the UK, but they can breach competition law if they restrict the market in a significant way.
• The real risk depends on market power, duration, scope, territories, customer restrictions and the practical effect on competitors and customers.
• Online sales restrictions, non-compete clauses and long exclusive terms deserve particular attention before you sign a contract.
• A clear written agreement with narrow, commercially justified exclusivity terms can reduce legal and operational risk.

If your business is dealing with what is exclusive dealing and wants help with exclusivity clauses, distribution agreements, competition law risk checks, and contract reviews, you can reach us on 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.