Alex is Sprintlaw’s co-founder and principal lawyer. Alex previously worked at a top-tier firm as a lawyer specialising in technology and media contracts, and founded a digital agency which he sold in 2015.
If you’re teaming up with another business to share data, resources, costs or revenue, you’ll want a clear Sharing Agreement in place from day one.
It doesn’t have to be complicated. The right agreement sets expectations, allocates risk fairly and helps you collaborate confidently without blurring lines around ownership, liability or compliance.
In this guide, we’ll explain what a Sharing Agreement covers, when you need one, the key UK laws to keep in mind, and the clauses you don’t want to miss.
What Is A Sharing Agreement?
A Sharing Agreement is a contract between two or more businesses that sets out how you’ll share something of value and on what terms. In practice, the “sharing” could be:
- Data sharing between organisations (for example, customer or usage data).
- Resource or facility sharing (e.g. office space, equipment, warehouse capacity, vehicles).
- Staff or know‑how sharing (e.g. secondments, expertise, training materials).
- Cost sharing (e.g. joint marketing campaigns, events, or pooled logistics).
- Revenue sharing (e.g. referral fees, co-branded product sales, or platform commissions).
- IP sharing (e.g. brand assets, software, or content under a licence).
Unlike a standard supply contract where one party provides and the other pays, a Sharing Agreement recognises collaborative value on both sides. It sets boundaries: who can access what, for how long, for which purposes, on what payment basis, and what happens if something goes wrong.
It also helps you avoid “accidental partnership.” In the UK, if you carry on a business in common with a view of profit, you can be treated as a partnership under the Partnership Act 1890. That can create joint and several liability – not what most SMEs intend. A well‑drafted Sharing Agreement is a practical way to keep the relationship collaborative without inadvertently forming a partnership.
When Do Small Businesses Need A Sharing Agreement?
If any of the scenarios below sound familiar, it’s a strong sign you should have a Sharing Agreement in place before you start working together.
- Data collaboration: Two businesses pool customer or operational data to generate insights. You’ll need to define roles (controller vs controller/processor), purposes and security measures – and you’ll often pair the arrangement with a tailored Data Sharing Agreement under UK GDPR.
- Shared equipment or premises: For example, sharing a commercial kitchen, machinery, or desk space. You’ll want rules for bookings, maintenance, safety, insurance and who pays for damage.
- Co-marketing and lead sharing: Businesses share creative assets, email lists or campaign costs and split resulting sales. Here, set out brand rules, consent for marketing, attribution and a transparent Revenue Share Agreement for commission calculations.
- Joint bids or projects: Two SMEs team up for a tender or a one‑off client project. Define scope, deliverables, responsibility for compliance, and how you’ll handle IP created together. Sometimes this is better structured as a Joint Venture Agreement if the project is substantial.
- Knowledge or software sharing: One party allows the other to use proprietary tools or content. Protect it with clear licence terms – often via an IP Licence alongside the sharing arrangement.
- Secondments or staff time sharing: If staff are placed with another business, agree supervision, health and safety responsibilities, confidentiality and who bears employment costs and liabilities.
In short, if you’re sharing anything non‑trivial for business gain – especially data, regulated activities or high‑value assets – document it. A handshake deal rarely survives first contact with a dispute.
Key Legal Issues Under UK Law
Sharing arrangements cut across several UK legal regimes. Here are the big ones to consider.
Data Protection (UK GDPR And Data Protection Act 2018)
If you share personal data, you must comply with UK GDPR and the Data Protection Act 2018. The key questions are:
- What roles do you have? Are you independent controllers, joint controllers or controller/processor? Your contract should reflect the correct role and allocate obligations accordingly.
- What’s the lawful basis? Be clear about the purpose and legal basis for sharing. Don’t re‑use data for incompatible purposes.
- Transparency and rights: Tell individuals what you’re doing via your Privacy Policy, and make sure you can honour rights requests.
- Security and international transfers: Implement appropriate security, and if data will leave the UK, ensure transfer safeguards are in place.
For controller/processor setups, a robust Data Processing Agreement is mandatory. For controller‑to‑controller collaborations, a fit‑for‑purpose Data Sharing Agreement clarifies purposes, responsibilities and incident handling.
Intellectual Property (IP)
Who owns what you bring in – and what you create together? Your Sharing Agreement should cover:
- Background IP: Each party retains ownership of pre‑existing IP; specify the licence granted to the other party (scope, territory, term, exclusivity).
- New/foreground IP: Decide whether it’s jointly owned or owned by one party with a licence to the other – and who can register, enforce and commercialise it.
- Brand use: Set brand guidelines and approval processes to protect reputation.
If one party needs an ongoing right to use the other’s IP, documenting that via an IP Licence keeps things clean and enforceable.
Competition Law
Competitors can collaborate – but be careful. The Competition Act 1998 prohibits anti‑competitive agreements, including unlawful price‑fixing, market sharing or the exchange of commercially sensitive information. Keep information sharing limited to what’s necessary for the collaboration, and include a competition compliance clause and playbook (e.g. what must not be discussed in meetings).
Employment And Health & Safety
Sharing people or workplaces triggers duties under employment law and health and safety regulation. Clarify who is responsible for supervision, H&S risk assessments, training, and insurance – and make sure you’re not creating unintended employment relationships or liabilities. If you’re sharing staff, ensure it’s clear that each worker remains employed by their original employer unless explicitly agreed otherwise.
Tax And VAT
Cost and revenue sharing affects tax and VAT treatment. For example:
- Agree how you’ll invoice each other for shared costs or revenue, and who accounts for VAT.
- Make sure payments reflect genuine supplies/services to avoid HMRC re‑characterisation.
- If you accidentally form a partnership, profits/losses might flow differently than expected. Your agreement should disapply partnership and clarify independent contractor status between the parties.
Consumer And Marketing Laws
If your collaboration touches customers, ensure compliance with the Consumer Rights Act 2015 (clear terms, fair pricing, refund rights) and UK advertising rules (CAP Code). Data‑driven marketing must also comply with consent and legitimate interest rules under UK GDPR, and with PECR for electronic marketing.
Essential Clauses To Include In A Sharing Agreement
Every arrangement is different, but these clauses are commonly essential for SMEs.
- Parties And Purpose: Who is involved and exactly what you’re sharing (data, equipment, staff time, IP, revenue). Tie this to lawful purposes where personal data is involved.
- Roles And Responsibilities: Who does what day‑to‑day, including lead contacts, decision‑making and reporting.
- Access And Usage Rights: What each party can access, when and for which purposes; any usage caps or booking rules for shared resources.
- IP Ownership And Licensing: Ownership of background and new IP; licence terms; approval for brand use; infringement handling.
- Confidentiality: Define what’s confidential, how long obligations last, and permitted disclosures. Many businesses also put a standalone NDA in place before deeper discussions begin.
- Data Protection: Roles (controller/processor/joint controllers), security measures, incident notification, data minimisation, retention and deletion, and transfer safeguards. Cross‑refer or attach a Data Sharing Agreement or Data Processing Agreement as needed.
- Costs And Payment: How costs are split; invoicing, VAT, reimbursement timings, and audit rights to verify figures (especially for revenue splits).
- Performance Standards And SLAs: For shared services or facilities, set service levels, maintenance responsibilities, and downtime processes.
- Approvals And Governance: Steering meetings, voting thresholds, sign‑off processes and change control.
- Competition Compliance: Limits on information exchange, resale pricing, or market allocations to avoid breaches of competition law.
- Insurance And Liability: Which insurances each party must carry (e.g. public liability, professional indemnity, cyber); caps on liability; exclusions; indemnities for third‑party claims.
- Health And Safety: Duties for shared premises or equipment, incident reporting, and training requirements.
- Term, Termination And Exit: Start date, initial term, renewal, early termination rights, and practical exit steps: hand‑back of assets, data deletion, continued support, and wind‑down of joint campaigns.
- Disputes: Escalation procedures, mediation, and jurisdiction. Early escalation pathways often resolve issues before they spiral.
- No Partnership Or Agency: Make it explicit that the arrangement does not create a partnership, joint venture or agency (unless that is the intent). If it is a true JV, use a dedicated Joint Venture Agreement.
Step-By-Step: How To Put A Sharing Agreement In Place
1) Map The Collaboration
Start simple: write down exactly what you’re sharing, with whom, why, and what each party expects to get out of it. List any systems, datasets, assets or brand elements involved, and how the arrangement will work in practice week‑to‑week.
2) Identify Legal And Operational Risks
Spot the sensitive areas: personal data, safety risks, critical IP, branding, regulated activities, or financial exposures. For data‑heavy projects, consider whether you need a bespoke Data Sharing Agreement or controller‑processor Data Processing Agreement attached to the main contract.
3) Agree Commercials Upfront
How will costs be allocated? How is revenue calculated and paid? What happens if a customer cancels or pays late? For ongoing income splits, many SMEs pair their Sharing Agreement with a separate Revenue Share Agreement that spells out the formula, reporting and audit rights.
4) Protect Your IP And Confidentiality
Set terms for brand and content use, and decide ownership of anything created together. Where long‑term rights are needed, use an IP Licence. Keep early discussions protected with an NDA.
5) Document, Then Test The Practicalities
Get the agreement drafted professionally so the clauses reflect your real‑world process. Before signing, run through a few practical scenarios together (e.g. a data breach, equipment breakdown, missed payment, or brand complaint) and confirm the contract provides a clear path to resolution.
6) Put Governance, Insurance And Policies In Place
Schedule regular check‑ins, appoint points of contact, and confirm both sides hold appropriate insurance. If the project involves personal data or marketing, make sure your Privacy Policy and internal procedures actually match what the agreement says you’ll do.
7) Review And Refresh
Sharing arrangements evolve. Add a review date, and don’t wait until renewal to fix pain points – use a change control process to tweak scope, pricing or service levels as you learn.
Common Pitfalls To Avoid
- Vague scope: “We’ll collaborate” isn’t enough. Ambiguity leads to mismatched expectations and disputes.
- Ignoring data roles: Treating a controller‑to‑controller share like a processor setup (or vice versa) can land you in hot water under UK GDPR.
- IP confusion: Not spelling out who owns new IP can stall growth if one party wants to build on it later.
- No audit rights: If you’re splitting revenue or costs, agree simple reporting and the ability to verify the numbers.
- Accidental partnership: Sharing profits without a clear “no partnership” clause and independent contractor wording can create unintended joint liability.
- Competition law blind spots: Competitor collaborations need guardrails to avoid unlawful information exchange or market sharing.
- Insurance gaps: Each party should maintain appropriate cover for the risks they control – don’t assume the other side has it.
- Weak exit plan: If one party leaves, how do you return or delete data, unwind co‑branding, and finish open orders? Put it in writing.
If any of these risks touch your arrangement, it’s worth getting tailored advice before you sign. A short consult now can save serious time and cost later.
Key Takeaways
- A Sharing Agreement sets clear rules for sharing data, resources, costs, revenue or IP – so you can collaborate confidently without blurring ownership or liability.
- If you’re sharing personal data, align your contract with UK GDPR and the Data Protection Act 2018, and use the right instrument (a Data Sharing Agreement or Data Processing Agreement).
- Protect your assets: define background and new IP ownership clearly, and grant rights using an IP Licence where ongoing use is needed.
- Cover the essentials: scope, roles, payment, confidentiality, data protection, competition compliance, insurance, liability caps, dispute resolution and exit.
- Avoid accidental partnership by stating the relationship is not a partnership, agency or JV (unless intentionally structured via a Joint Venture Agreement).
- For revenue splits, support the commercial model with a clear Revenue Share Agreement and practical reporting/audit rights.
- Set governance and review points so the arrangement stays aligned with how you actually work, and ensure your public‑facing policies like your Privacy Policy match your practices.
If you’d like help drafting or reviewing a Sharing Agreement that fits your collaboration, you can reach us at 08081347754 or team@sprintlaw.co.uk for a free, no‑obligations chat.


