Contract Assignment: What It Means For Your Business And How To Do It Properly

If you’re running a small business, there’s a good chance you’ll need to “move” a contract at some point.

Maybe you’re selling part of your business, restructuring your group, switching suppliers, bringing in a new delivery partner, or simply tidying up old arrangements that no longer fit how you operate today.

This is where an assignment of contract comes in. Done properly, it can be a clean, efficient way to transfer contractual rights. Done poorly, it can leave you unpaid, in breach, or stuck with responsibilities you thought you’d handed over.

In this guide, we’ll walk you through what contract assignment is in the UK, when you can use it, what to check in your paperwork, and the practical steps to do it properly (without the legal jargon overload). This article is general information only and isn’t legal advice.

What Is Assignment Of Contract (And Why Do Small Businesses Use It)?

An assignment of a contract is when one party to a contract (the “assignor”) transfers their rights under that contract to someone else (the “assignee”).

In plain terms: you’re transferring what you’re entitled to receive under the contract.

What Can Be Assigned?

In most cases, it’s the benefit of the contract that gets assigned. For example:

• the right to receive payment (e.g. invoices owed to you)
• the right to receive goods or services
• the right to enforce warranties or guarantees
• the right to sue if the other party breaches the contract (subject to the contract terms)

Common Business Scenarios Where Contract Assignment Comes Up

• Business sale: you want to transfer customer contracts to the buyer so they can keep trading without interruption
• Group restructure: a contract was signed by one company but should now sit with a different group entity
• Outsourcing: you want a third party to receive the benefit of a supply contract (for example, a subcontractor arrangement)
• Debt/invoice finance: you assign receivables to a finance provider (often with notice requirements)
• Project handover: you step out of a project and assign the benefit of milestones or payments

One key point: assignment is a contract law tool, so the starting place is always your existing agreement and the broader rules on contract law.

Assignment Vs Novation: Which One Do You Actually Need?

This is one of the most common traps for business owners: assuming assignment and novation are basically the same thing.

They’re not.

Assignment usually transfers rights only (the benefits). A novation transfers rights and obligations and effectively swaps a party to the contract.

If you’re trying to fully step out of a contract and have someone else take over your responsibilities, assignment alone may not be enough.

A useful rule of thumb:

• Use assignment when you’re transferring what you get under the contract (e.g. payment rights).
• Use novation when you’re transferring what you must do under the contract (e.g. ongoing services, delivery obligations, warranties you give).

For a deeper comparison, the distinction is often explained through novation or assignment depending on whether obligations need to move too.

A Quick Example

Let’s say your business has a 12-month services contract with a client. You’re restructuring and want another company to perform the services going forward.

• If you only assign, you might assign the right to receive the fees - but you could still remain responsible for actually delivering the services (which is a problem if you’re no longer operating that part of the business).
• If you novate, the new company becomes the service provider in your place, and you’re usually released from future obligations (subject to the deed terms).

That’s why it’s so important not to treat “contract assignment” as a catch-all solution.

Can You Assign A Contract Without Consent In The UK?

Sometimes yes, sometimes no - and the answer depends heavily on the contract terms.

Under English law, contractual rights are generally assignable unless:

• the contract prohibits assignment (an “anti-assignment clause”)
• the contract says you can assign only with consent
• the right is personal in nature (for example, it relies on personal skill, trust, or a unique relationship)
• you’re effectively trying to transfer the burden of the contract (i.e. obligations) through “assignment” - which generally isn’t allowed without novation

Watch For These Common Clauses

When you’re checking whether an assignment is allowed, look for clauses like:

• “No assignment”: outright ban (you’ll need a different solution, often a novation or a new agreement)
• “Assignment with consent”: you can assign, but only if the other party agrees (sometimes “not to be unreasonably withheld”)
• “Assignment to affiliates/group companies”: often allows assignment within a corporate group without consent
• Notice requirements: you must notify the other party in a particular way for the assignment to be effective against them

It’s also worth confirming the contract is actually properly formed and enforceable before you try to transfer rights - the basics of legally binding contracts still matter here.

Do You Need To Notify The Other Party?

Even when consent isn’t required, notice is often critical in practice.

In simple terms, there are different “levels” of assignment under English law. A common example is a statutory “legal assignment” under section 136 of the Law of Property Act 1925, which (among other things) generally requires the assignment to be in writing and the other party (the debtor/contract counterparty) to be given written notice. If those formalities aren’t met, the assignment may still exist as an “equitable assignment” - but it can be harder to enforce and manage in practice.

For example, if you assign the right to be paid, but the customer hasn’t been notified, they might pay you (the original party) and potentially discharge their obligation. That can create a messy dispute between you and the assignee.

In many commercial situations, giving clear written notice is the “cleanest” way to avoid confusion and reduce arguments about who is entitled to what.

How To Do A Contract Assignment Properly (Step-By-Step)

If you want your assignment to actually work in real life (and not just on paper), it helps to follow a structured approach.

1) Confirm What You’re Assigning: Rights Only Or Rights Plus Obligations?

Start by identifying exactly what needs to transfer:

• Are you transferring the right to receive money, goods, or services?
• Are there ongoing obligations you still need to perform?
• Is there any liability attached to what you’re assigning (e.g. warranties, indemnities, service levels)?

If obligations must move too, you may need a novation (or a new agreement), not a simple assignment.

2) Check The Contract For Assignment Restrictions

This is where a quick “scan and sign” approach can cause real damage.

Specifically check:

• Does the contract allow assignment at all?
• Does it require the other party’s consent?
• Are there conditions (notice, form, timing, execution as a deed)?
• Are there restrictions on assigning part only of the contract?

If your contract needs changes to enable assignment, you might be looking at amending a contract before you can proceed.

3) Decide On The Right Document: Deed Of Assignment Or Assignment Clause?

Some contracts include a built-in mechanism for assignment, but most businesses use a standalone document.

Common options include:

• Deed of assignment: a formal document transferring rights (often used when no “consideration” is being paid, or where the contract requires assignment by deed)
• Simple assignment agreement: can work in certain contexts, but may not be sufficient depending on the original contract

In many cases, a Deed of Assignment is the safest and most widely accepted approach, particularly for commercial arrangements.

4) Get The Execution Formalities Right (Signatures, Witnessing, Companies)

Even if the commercial deal makes sense, a poorly executed assignment can be challenged.

Key things to check:

• Does the original contract require the assignment to be executed as a deed?
• If a company is signing, are you following the correct signing method (e.g. two directors, or a director plus a witness)?
• Does the assignee need to sign too? Not always for a valid assignment of rights, but it’s commonly signed by the assignee as well (and may be required by the deal structure or the contract) to evidence acceptance and reduce dispute risk.

If you’re dealing with deeds and corporate signatures, it’s worth following practical guidance on executing contracts, and being clear on who can witness a signature when a witness is required.

5) Serve Notice (And Keep A Paper Trail)

Once the assignment is signed, you’ll usually want to notify the other party in writing - and if you want the cleanest “legal assignment” position under the Law of Property Act 1925, written notice is typically essential.

A good notice process typically includes:

• sending notice to the address and contact specified in the contract
• including the date of assignment and what rights have been assigned
• invoicing/payment instructions (if relevant)
• keeping proof of delivery (email read receipt, recorded delivery, or a clear email thread)

For small businesses, this “admin” step is often what prevents disputes later.

Key Risks To Watch Out For With Contract Assignment

Contract assignment can be incredibly useful - but it’s not risk-free. Here are some of the biggest issues we see in practice.

You Might Still Be On The Hook For Performance

This is the big one.

Assigning rights doesn’t automatically transfer your obligations. So if you assign the right to payment under a service contract, but you’re still the party responsible for delivering the service, you could still be liable if the work isn’t done properly.

You Could Accidentally Breach An Anti-Assignment Clause

If the contract prohibits assignment (or requires consent) and you assign anyway, you may trigger:

• a breach of contract
• a termination right for the other party
• disputes about whether the assignment is valid at all

This can be especially disruptive if the contract is a key revenue source for your business.

The Other Party Might Refuse To Deal With The Assignee

Even when an assignment is legally effective, a counterparty may resist changing their processes (for example, they keep paying the original supplier out of habit).

This is why notice, updated billing details, and clear communication matter.

Confidentiality And Data Protection Can Get Messy

If the contract involves customer data, employee information, or confidential business information, assignment can raise extra issues.

You may need to think about:

• whether confidentiality obligations allow information sharing with the assignee
• whether a data processing arrangement is needed (for example, if personal data is being handled by a new party)
• whether customer-facing documents (like your Privacy Policy) need updating due to who controls/uses the data

“Partial Assignment” Can Create Confusion

Sometimes businesses want to assign only part of the benefit (for example, 50% of receivables, or one part of a bundle of rights).

Partial assignments can be possible, but they can also create:

• disputes about what exactly was transferred
• confusion for the other party (who do they pay, and how?)
• administrative burden that outweighs the benefit

If you’re considering a partial assignment, it’s worth getting advice so the wording and operational process match.

Key Takeaways

• Assignment is usually about transferring rights/benefits (like payment rights), not necessarily obligations.
• Novation is often required if you need to transfer obligations and fully replace a party to the contract.
• Always check the original contract for anti-assignment clauses, consent requirements, and notice rules before you assign anything.
• A properly drafted deed of assignment (and correct execution formalities) can prevent disputes about whether the transfer is valid.
• Give clear written notice to the other party and keep a strong paper trail, especially where invoices and payments are involved.
• If the contract involves confidential information or personal data, make sure you manage confidentiality and privacy issues as part of the assignment process.

If you’d like help with an assignment of contract (or working out whether you actually need a novation), you can reach us at 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.