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.
You finished the work, sent the invoice, and now the client has gone quiet. It can feel especially unfair when they're asking for the files, source materials or login details while your payment is still overdue.
If you're wondering whether you can hold back deliverables, pause the project or keep copyright until you're paid, you're asking the right questions. The answer usually comes down to your contract, what you've already delivered, and who owns the intellectual property at each stage.
The good news is that you often have practical options. The key is to use them carefully, so you protect your position without accidentally breaching your own agreement.
Can A Freelancer Withhold Work For Non-Payment?
Yes, you may be able to withhold work for non-payment, but only if your contract and the facts support it. If your agreement says final files, source files or usage rights are only provided after payment, you're in a much stronger position.
For example, your contract might say:
- payment is due before final deliverables are released
- you can pause work if an invoice is overdue
- copyright or a licence only transfers once you've been paid in full
- working files aren't included unless agreed in writing
If you have clauses like these, holding back unpaid deliverables is usually a commercial protection, not a surprise punishment.
Things get trickier if your contract says you must deliver everything by a certain date, but doesn't link delivery to payment. In that situation, refusing to hand over files could put you in breach, even if the client also owes you money.
You also need to separate your work from the client's property. You shouldn't hold client-owned materials hostage, such as their original photos, brand assets, customer data, documents or login credentials, unless your contract clearly gives you a right to retain them and it's lawful to do so.
A safer approach is usually to withhold new deliverables, editable source files or extended usage rights, rather than refusing to return property the client already owned.
What Should You Do First When A Client Hasn't Paid?
Start by checking your paperwork, then send a clear written reminder before you suspend anything. Acting in order helps you look reasonable if the dispute escalates.
Step 1: Check The Contract And Invoice
Look for the payment due date, any notice period, suspension rights, late payment interest, termination rights and IP ownership wording. Also check whether you described the deliverables clearly enough to show what has and hasn't been handed over.
If there's no written freelancer agreement, check emails, proposals, signed quotes, purchase orders, messages and your invoice terms. A customer contract can be formed through an exchange of written messages, even if nobody signed a formal document.
Step 2: Send A Polite Payment Reminder
Your first reminder should be firm but calm. Include:
- the invoice number and amount
- the original due date
- a copy of the invoice
- how to pay
- a short deadline for payment, such as 7 days
- what will happen next if payment isn't made
Avoid threats you aren't ready or allowed to follow through on. For example, don't say you'll delete the client's files if your contract doesn't allow deletion and you may need the files as evidence.
Step 3: Keep A Record
Keep copies of the contract, brief, drafts, approvals, invoices, payment reminders and any messages where the client accepted the work. If the client later claims the work was defective or never agreed, your records will matter.
If you're dealing with a company, check the company name and registered number against Companies House. It sounds basic, but chasing the wrong legal entity can slow everything down.
Can You Suspend Work Or Terminate The Contract?
Yes, you can usually suspend work or terminate the contract if your contract gives you that right. Without a clear clause, you need to be more careful because stopping work too early can become its own breach.
A good freelancer agreement will usually let you suspend work if payment is overdue after written notice. For example, it might say you can pause services if an invoice remains unpaid 7 days after you send a reminder.
Termination is a bigger step. You might be able to terminate if the client has seriously breached the contract, such as by failing to pay a material invoice after notice. Your contract should set out:
- what counts as a breach
- whether the client gets time to fix it
- how notice must be given
- what happens to unpaid fees
- what happens to files, licences and confidential information after termination
Say Mike runs a small web development studio in Manchester. His contract says invoices are payable within 14 days, and he can suspend work if payment is still overdue 7 days after a written notice. A client owes him £3,200 for milestone two. On day 15, Mike sends a reminder. On day 22, he sends a suspension notice and pauses work on milestone three. Because his contract clearly links non-payment to suspension, he's in a much better position than if he'd simply disappeared from the project.
If you don't have a suspension clause, get advice before downing tools. You may still have options, but they depend on how serious the non-payment is and how the contract is structured.
Who Owns Copyright In Unpaid Freelance Work?
In many cases, you own the copyright until you transfer it, but the contract can change the answer. Under the Copyright, Designs and Patents Act 1988, the creator is generally the first owner of copyright, unless they're an employee creating the work in the course of employment or copyright has been assigned.
For freelancers and agencies, that means copyright in things like copy, designs, code, photos, videos and illustrations will often start with the creator. If your business uses subcontractors, you also need to make sure the subcontractor has assigned or licensed their rights to your business before you promise rights to a client.
A copyright assignment or copyright licence agreement should generally be in writing and signed by the person transferring the rights. A licence can be broader or narrower, and may not need the same formalities, but it should still be written clearly.
The key commercial point is this: your contract should say whether the client receives:
- ownership of copyright
- a licence to use the work
- limited rights for a specific purpose, territory or time period
- no rights until payment is made in full
If your contract says copyright is assigned to the client on creation, you may have already transferred ownership even if they haven't paid. If it says ownership transfers only once all fees are paid, you keep stronger leverage.
Be careful not to overstate your rights. If the client supplied their logo, photos, brand guidelines or data, you don't own those materials just because you've used them in your work.
Can You Keep Source Files, Drafts And Login Details?
It depends on what the contract says those items are. Final deliverables, working files, drafts, source files and account access aren't always treated the same way.
Many disputes happen because the client assumes they're buying everything, while you assume they're only buying the final output. For example, a logo package might include final PNG and SVG files, but not the editable Adobe Illustrator file. A website build might include a live website, but not custom development tools, unused concepts or internal project notes.
Source Files And Working Files
You can usually keep source files if your contract says they're excluded or only provided for an extra fee. If the contract says they're included, or your proposal promised them, refusing to provide them after payment may be a problem.
If payment is overdue, a conditional delivery clause can help. For example, final editable files are released only after cleared funds are received.
Login Details And Client Accounts
Be very cautious with login details. If the account belongs to the client, such as their hosting account, social media account, domain name account or advertising account, withholding access can create bigger issues than the unpaid invoice.
If you manage accounts for clients, set this up properly from the start. Ideally, the client owns their key accounts and gives your business limited access. That way, if payment goes wrong, you can remove your access without controlling the client's property.
Personal Data And UK GDPR
If the files include personal data, the UK GDPR and Data Protection Act 2018 may affect what you can do. You shouldn't use customer lists, employee records, analytics exports or contact databases as leverage for payment. Keep them secure, only use them for the agreed purpose, and follow your data processing obligations.
How Can You Recover An Unpaid Freelance Invoice?
You can chase the debt while still protecting your IP position. The best approach is usually calm escalation, not immediate confrontation.
For business-to-business contracts, the Late Payment of Commercial Debts (Interest) Act 1998 may allow you to claim statutory interest and fixed compensation if the client pays late. Statutory interest is 8% per year plus the Bank of England base rate, unless your contract has a different substantial remedy for late payment.
You may also be able to claim fixed compensation of:
- £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
If your £3,200 invoice is overdue, that falls into the £70 fixed compensation band. Interest is calculated based on the amount overdue, the annual statutory rate and the number of days late.
A practical escalation process might look like this:
- Reminder: send a friendly written reminder as soon as the invoice is overdue.
- Final reminder: give a clear deadline, such as 7 days, and mention any contractual suspension rights.
- Suspension notice: pause only if your contract allows it or you've had tailored advice.
- Formal demand: set out the debt, interest, compensation and deadline for payment.
- Settlement option: consider a payment plan if it gets the matter resolved without giving away your rights too early.
If the client raises concerns about the work, don't ignore them. Ask for specifics and check whether the complaint is genuine, vague or tactical. For consumer clients, the Consumer Rights Act 2015 can require services to be performed with reasonable care and skill, so your response may need extra care if you're dealing with an individual consumer rather than a business client.
What Should Your Freelance Contract Say About Payment And IP?
Your contract should say exactly when payment is due, what happens if payment is late, and when the client gets ownership or usage rights, so contract drafting and review matter. Templates often miss these details, so it's worth tailoring the document to how your business actually works before you use it.
Here's a fill-in outline you can use as a starting point for the clauses to discuss with a lawyer:
- Parties: write the correct legal names, company numbers and trading names.
- Scope Of Services: describe what you're doing, what is excluded, and what assumptions you're relying on.
- Deliverables: list final files, formats, drafts, revisions, source files and handover materials.
- Fees And Payment Terms: state deposits, milestones, invoice timing, due dates and accepted payment methods.
- Late Payment: set out interest, recovery costs, fixed compensation and when reminders will be sent.
- Suspension Rights: explain when you can pause work, what notice you'll give, and how work restarts.
- Termination: cover non-payment, notice periods, work completed to date and final invoice rights.
- Intellectual Property: say who owns pre-existing materials, new work, drafts, rejected concepts and source files.
- Licence Or Assignment: state whether rights transfer, when they transfer, and whether full payment is a condition.
- Client Materials And Data: cover how you handle client assets, confidential information and personal data.
- Dispute Process: include a practical process for raising issues before either side escalates.
One clause can make a major difference: no ownership or licence transfers until all amounts due are paid in cleared funds. That wording won't fix every situation, but it gives you a clear starting point if the client wants to use the work without paying.
If you work through an agency, marketplace or platform, also check their terms. Sometimes the platform rules decide when payment is released, who owns the work and what happens if there's a dispute.
Key Takeaways
- You may be able to withhold work for non-payment, but your contract should clearly link delivery, suspension and IP rights to payment.
- Copyright often starts with the creator under the Copyright, Designs and Patents Act 1988, but a written assignment or licence can change who owns or can use the work.
- Don't use client-owned materials, login details or personal data as leverage unless you're sure you have a lawful right to retain them.
- For business debts, statutory interest and fixed compensation may be available under the Late Payment of Commercial Debts (Interest) Act 1998.
- A strong freelance contract should cover payment dates, late payment, suspension, termination, source files and when rights transfer.
- If the wording is unclear or the client is pushing back, get tailored advice before withholding files or terminating the project.
If you'd like help with your freelance services agreement, payment terms, IP ownership clauses or a non-payment dispute, you can reach us at 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.
Drafted by Taylor, Sprintlaw's AI, and overseen by Alex Solo. How we write
Protect your brand
What intellectual property should you protect?
If a name, logo, design or other creative work matters to the business, check who owns it, what permissions you need and whether clearance or registration is appropriate.








