Can I Stop A Client Using Work They Haven't Paid For?

Usually, yes, you may be able to stop a client using work they haven't paid for, especially if you still own the copyright or their licence depends on payment.

But it isn't always as simple as saying, they didn't pay, so they can't use it. The answer depends on your contract, what type of work you created, whether ownership has already been transferred, and whether the client has an implied or express licence to use it.

If your client is using work they haven't paid for in the UK, the strongest position is usually a clear contract that links payment to IP ownership or usage rights. If that wording isn't there, you may still have options, but you'll want to move carefully.

Can You Stop A Client Using Work They Haven't Paid For?

Yes, you can often stop a client using unpaid work if they don't own the IP and they don't have a valid licence to use it.

For creative and service businesses, this commonly comes up with:

• Logo designs, brand identities and illustrations
• Website designs, code, copy and photography
• Marketing campaigns, videos and social media assets
• Reports, strategy documents, training materials and templates
• Software, apps, prototypes, user experience designs and any software licence agreement terms

The key question is whether the client has the legal right to use the work. That right usually comes from one of three places:

• Ownership: you assigned the copyright or other IP to the client.
• A licence: you kept ownership but gave the client permission to use the work.
• An implied licence: there was no written licence, but the circumstances suggest the client was meant to be able to use the work for a particular purpose.

If your contract, including any copyright licence agreement, says the client only receives ownership or a licence after full payment, you have a much stronger basis to tell them to stop using the work until they pay.

If your contract says ownership transfers when the work is created or delivered, even before payment, your main claim may be for the unpaid invoice rather than stopping use. That doesn't mean you're stuck, but your leverage is different.

Who Owns Copyright If The Invoice Hasn't Been Paid?

It depends on your contract, but under UK copyright law the creator often owns the copyright unless it has been assigned in writing.

Copyright is mainly governed by the Copyright, Designs and Patents Act 1988. In simple terms, copyright protects original creative work such as written content, artwork, software code, photographs, music, film and some design materials.

If you're a freelancer or agency creating work for a client, the client doesn't automatically own the copyright just because they paid for the work, asked for the work, or commissioned the project. A copyright assignment must generally be in writing and signed by the person transferring it.

There are two big exceptions to keep in mind:

• Employee-created work: if your employee creates copyright work in the course of their employment, your business will usually own it, unless you've agreed otherwise.
• Written assignment: if your client contract says copyright is assigned to the client, that wording may transfer ownership depending on when and how the clause operates.

Unpaid invoices don't automatically cancel an assignment if the contract already transferred ownership. For example, a clause saying all IP transfers to the client on delivery may leave you with less control than a clause saying IP transfers only once all fees are paid in full.

Design work can also involve design rights, trade marks and third-party materials. If you've created a logo, for example, copyright may sit with you until assigned, while the client may later want to apply to the UK IPO for trade mark protection. Your contract should make that pathway clear.

Can You Withhold Deliverables Until Payment Is Made?

Yes, you can usually withhold final deliverables if your contract allows you to do so or if delivery isn't due until payment is made.

This is one of the most practical ways to reduce the risk of non-payment. Instead of handing over everything and hoping the client pays, you can structure the project so that valuable assets are released in stages.

For example, you might provide watermarked proofs before approval, then release final files once the final invoice is paid. Or you might deliver a website on a staging link first, then make it live after the balance is cleared.

Common deliverables you may be able to hold back include:

• Editable design files, source files and raw footage
• Final high-resolution exports
• Website launch files or deployment access
• Software source code and repositories
• Strategy documents, templates or training materials

Be careful with anything that belongs to the client, such as their confidential information, original materials, personal data or account logins. Holding those as leverage can create separate legal and commercial problems, especially if personal data is involved under the UK GDPR and Data Protection Act 2018.

You should also avoid taking aggressive technical steps without advice. For example, don't access a client's systems without permission, delete work from their account, disable a live website or post publicly about the dispute unless your contract clearly supports what you're doing and the step is proportionate.

A calm payment hold is very different from disrupting the client's business in a way that could come back on you.

Can You Ask Them To Stop Using The Work?

Yes, you can ask them to stop using the work if they don't have the right to use it, but the wording and timing matter.

Start with a firm but professional notice. The goal is to make your position clear, preserve the relationship if possible, and build a paper trail if things escalate.

Your notice should usually cover:

• The work you're talking about, such as the campaign assets, website copy or logo files
• The unpaid amount and invoice due date
• The contract clause that says use, licence or ownership depends on payment
• What you want them to do, such as pay by a date or stop using the work
• What happens next if they don't respond

If the client is a business, you may also be able to claim statutory interest and compensation under the Late Payment of Commercial Debts (Interest) Act 1998. If no payment date was agreed, payment is usually late 30 days after the later of the client receiving the invoice or the goods or services being delivered/provided. The statutory interest rate is 8% above the Bank of England base rate, and fixed compensation is currently:

• £40 for debts up to £999.99
• £70 for debts from £1,000 to £9,999.99
• £100 for debts of £10,000 or more

For example, Maya runs a small branding studio. Her contract says the client receives a licence to use the final brand assets only after full payment. The project fee is £4,800. The client pays a £2,400 deposit, receives draft concepts, then launches one of the unpaid concepts on its website and refuses to pay the remaining £2,400.

Because Maya's licence clause is tied to full payment, she can write to the client requiring payment and asking them to stop using the branding until the balance is paid. Since the unpaid amount is £2,400, she may also be able to add £70 fixed compensation plus statutory interest if the Late Payment Act applies.

If Maya had no written contract, she may still own copyright, but the client may argue there was an implied licence to use the brand. That doesn't mean the client is right, but it makes the dispute harder and more fact-specific.

What Should You Do First When A Client Won't Pay?

First, check your contract and gather your records before you threaten to restrict use.

When an agency client won't pay or a design client keeps using unpaid work, it can be tempting to move straight to a takedown notice or a blunt email. Sometimes that's the right next step, but you should make sure the facts support you first.

Step 1: Check Your Contract

Look for clauses about:

• When payment is due
• When ownership transfers
• Whether the client gets a licence before payment
• Your right to suspend services or withhold deliverables
• Termination, deposits and cancellation fees
• Late payment interest and recovery costs

Step 2: Collect Evidence

Keep copies of:

• The signed contract, proposal, statement of work and any accepted terms
• Invoices, reminders and payment history
• Emails or messages approving the work
• Proof the client is using the unpaid work, such as screenshots with dates
• Files showing you created the work, including drafts and source files

Step 3: Send A Clear Payment Notice

Give the client a short deadline to pay or respond. For many businesses, 7 days is a practical starting point for a final reminder, but check your contract in case it sets a different notice period.

If they ignore you, your options may include suspending further work, withholding remaining deliverables, revoking a conditional licence, sending a formal letter of claim, using a platform takedown process where copyright infringement is clear, or starting a debt recovery process such as Money Claim Online. The right path depends on the amount, evidence and commercial relationship.

What Clauses Should Your Contract Include?

Your contract should clearly say when the client can use the work, when they own it, and what happens if they don't pay.

This is where many disputes start. A friendly proposal might describe the work and price well, but say nothing about IP ownership, licence conditions or withholding deliverables. That gap can make an unpaid invoice much harder to manage.

Here is a practical outline you can use to think through your next client contract or graphic design terms and conditions. It isn't a finished legal document, and a lawyer should tailor it before you use it, but it shows the key points to cover.

1. Parties: name your business, the client and who has authority to approve work.
2. Scope of work: describe the services, deliverables, revision rounds and what is out of scope in a clear statement of work.
3. Fees and payment dates: set deposits, milestones, final payment dates and any VAT treatment where relevant.
4. Ownership before payment: state that you retain ownership of IP until the agreed payment condition is met.
5. Licence after payment: explain what the client can use, where they can use it, for how long, and whether the licence is exclusive.
6. No use before payment: say whether drafts, concepts and unpaid deliverables can be used publicly or commercially.
7. Withholding and suspension rights: give yourself a clear right to pause work or hold back final files if invoices are overdue.
8. Third-party materials: identify stock images, fonts, plugins or open-source code and who is responsible for their licences.
9. Client materials: explain how you'll handle client assets, confidential information and personal data.
10. Late payment: set out interest, recovery costs and your process for overdue invoices.
11. Termination: cover deposits, kill fees, work completed to date and what happens to IP if the project ends early.
12. Dispute process: include a sensible escalation path before either side takes formal action.

Templates can be a helpful starting point, but they often miss the details that matter most for creative and service businesses. Your payment structure, deliverables and IP model should work together.

Key Takeaways

• You may be able to stop a client using unpaid work if you still own the IP or their licence depends on payment.
• In the UK, copyright usually stays with the creator unless it has been assigned in writing, but implied licences can complicate things.
• A clause that transfers ownership only after full payment gives you much stronger leverage than a clause that transfers IP on delivery.
• You can often withhold final deliverables, but be careful with client property, personal data, logins and live systems.
• Keep records, send a clear payment notice, and get tailored advice before taking stronger enforcement steps.
• Your client contract should connect payment, deliverables, IP ownership, licence rights and suspension rights in one clear framework.

If you'd like help with your client contracts, IP ownership clauses, unpaid invoice strategy or licence terms, you can reach us at 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.