How to chase an invoice when the client disputes the quality of work

It’s one of the most disheartening moments for any freelancer or small business owner. You’ve delivered the work, sent the invoice, and instead of payment, you receive a message saying, "I'm not happy with the quality, so I'm not paying." This situation is stressful and can quickly sour a client relationship. The key is to handle it professionally, separating genuine dissatisfaction from a cynical attempt to delay or avoid payment, and to have a clear process for resolving the issue either way.

This guide will walk you through how to diagnose the situation, structure the conversation, and take firm, fair steps to get paid. We’ll cover the practical and legal framework for UK businesses, helping you protect your cash flow and your reputation.

First, Diagnose the Situation: Genuine Concern or Stalling Tactic?

Before you respond, take a breath. Your immediate goal is to determine whether you’re dealing with a client who has a legitimate grievance or one who is using "quality" as an excuse. Your approach will be completely different depending on the answer. Look for patterns of behaviour.

A client with a genuine issue is a problem-solving partner. A client using a stalling tactic is an adversary.

Here’s a breakdown of the typical signs for each scenario:

Sign of a Genuine Dispute	Sign of a Stalling Tactic
Specific, Actionable Feedback: They can point to exact parts of the work that don't meet the brief (e.g., "The user login on page X doesn't work," or "You used the wrong brand colours on the flyer").	Vague, Subjective Complaints: They use fuzzy language like "It just doesn't have the wow factor," "I don't like the feel of it," or "It's not what I imagined."
Raised Promptly: The issues were flagged during the project, at a review stage, or immediately upon delivery.	Raised Late: Complete silence until the invoice due date passed. They were perfectly happy until the moment they had to pay.
Consistent with the Brief: The complaint relates directly to a requirement in the agreed-upon scope of work, contract, or proposal.	Shifting Goalposts: The complaint is about something that was never in the original brief (scope creep) or contradicts a previous instruction.
Willing to Collaborate: They are open to discussing solutions, such as revisions or a focused discussion on the specific problem areas.	Unwilling to Engage: They ignore emails, refuse to schedule a call to discuss the specifics, or just repeat their vague complaint without offering details.
Proportional Response: The complaint is about a specific part of the project, and they are open to paying for the undisputed parts.	All-or-Nothing Stance: They use a minor flaw to withhold payment for the entire project, even the parts that were completed perfectly and signed off.

Your gut feeling is often right, but backing it up with this objective analysis will give you the confidence to choose the correct path forward.

The Step-by-Step Process for Managing a Quality Dispute

Regardless of whether the dispute is genuine or not, your initial process should be the same. A calm, methodical approach prevents the situation from escalating emotionally and creates the paper trail you may need later.

Step 1: Acknowledge and De-escalate Immediately

Do not ignore their email or fire back a defensive response. Your first reply should be prompt, professional, and non-confrontational.

A simple, effective reply is:

"Hi [Client Name],

Thanks for getting in touch. I'm sorry to hear you're not fully satisfied with the work. My goal is always to deliver a result that you're happy with.

So I can fully understand and address your concerns, could you please reply with a specific list of the points that aren't meeting your expectations?

Once I have that, I'll review it against our original brief and we can schedule a call to agree on the best way forward.

Best regards, [Your Name]"

This response achieves three things: it shows you're taking them seriously, it avoids escalating the conflict, and it puts the ball back in their court to provide concrete details.

Step 2: Get Specifics in Writing

This is the most critical step. Insist that they detail their concerns in an email. A phone call at this stage can descend into a "he said, she said" argument. A written list forces them to articulate their issues, which often exposes a stalling tactic.

• If the complaint is genuine, they will be able to produce a list of specific, actionable points.
• If it's a stalling tactic, they will struggle. They might delay, repeat the same vague phrases, or try to insist on a call without providing details first. Stand firm and politely repeat your request for a written list so you can "prepare properly for a productive discussion."

Step 3: Review Against the Original Agreement

Once you have their list, do your homework. Do not rely on memory. Pull up the following documents:

• The signed contract or proposal.
• The agreed-upon Scope of Work (SOW).
• Any email chains where feedback was given or milestones were approved.
• Any change-request forms or emails.

Go through their list point by point and compare it to what you agreed to deliver.

• Is their complaint valid? Did you miss a requirement or make an error? Be honest with yourself.
• Is it scope creep? Are they asking for something that wasn't included in the original price?
• Was this point previously signed off? Did they already approve this part of the work in an earlier phase?

This objective review is your foundation for the next conversation.

Step 4: Schedule a Call to Discuss

With your analysis complete, now is the time for a call. Email can be misconstrued; a conversation allows you to gauge their tone and intent more clearly.

Frame the call's purpose: "To walk through the points you sent over and agree on a plan."

During the call:

• Listen first. Let them explain their frustrations.
• Address each point calmly. Use the evidence you gathered. For example: "Regarding point one, about the missing contact form, you're right, that was in the brief and was an oversight. We can add that straight away. Regarding point two, about adding a video gallery, that feature wasn't in our original scope, but I'd be happy to quote for it as a separate piece of work."
• Stay focused on a solution. The goal is not to "win" the argument but to resolve the payment issue.

Step 5: Propose a Clear, Written Solution

Based on the call, you will now follow one of two paths. Either way, you must summarise the outcome and the next steps in a follow-up email to create a clear record of what was agreed.

Path A: Resolving a Genuine Quality Issue

If your review and conversation confirm the client has a valid point, the best approach is to be professional, accountable, and solution-focused. This can even strengthen the client relationship in the long run.

Own the Mistake and Offer to Fix It

If you made an error, own it. A sincere apology and a quick plan to rectify the work is the most professional response.

Example phrase:

"You are correct, that part of the report doesn't include the regional data we discussed. That was my oversight. I will revise it and send you an updated version by tomorrow afternoon. Once you've confirmed you're happy with the correction, the original invoice will be due for payment."

This confirms their concern is valid, provides a clear timeline for the fix, and links the fix directly back to the payment of the invoice.

Offer a Partial Discount as an Alternative

Sometimes, fixing the work isn't practical, or the client may have lost confidence. In this case, a discount on the disputed portion of the work can be a fair compromise.

Important: Do not offer a vague, round-number discount on the whole invoice. This devalues your work. Instead, quantify the issue.

Example phrase:

"As we discussed, rectifying the colour-matching issue on the 100 printed flyers would require a full reprint. As an alternative, if you're able to use them as they are, I'm happy to remove the cost of the printing element from the invoice. That would be a reduction of £150, making the new total £600. Please let me know if you'd like to proceed on that basis."

This is a commercial, non-emotional solution. Get their agreement in writing before issuing a new, credited invoice.

Path B: Countering a Suspected Stalling Tactic

If the client's complaints are vague, outside the scope, or contradict previous approvals, you need to shift from a collaborative to a firm and assertive stance. Your goal is to dismantle their excuse and bring the conversation back to the overdue payment.

Politely but Firmly Refer to the Facts

Use the evidence you gathered in Step 3. Address their points by referring back to the agreed terms and sign-offs.

Example phrase:

"Thanks for the chat earlier. As discussed, I've reviewed your points. Regarding the request for a new logo design, our agreed scope was for a five-page website, and the logo design wasn't included. On the point about the homepage layout, this was the version you approved via email on the 15th of May before we proceeded with the build. We have delivered the work as per the agreed and signed-off brief."

Ask for Payment of the Undisputed Amount

This is a powerful move that tests their good faith. If they have a minor issue with 10% of the project, there is no legitimate reason to withhold payment for the other 90%.

Example phrase:

"While we resolve the issue you've raised about the blog's search function, please arrange for the payment of the undisputed part of the invoice, which covers the completed and approved design and core pages. That would be £1,800 of the £2,000 total. The remaining £200 can be settled once we've rectified the search issue."

A genuine client will usually agree to this. A client using a stalling tactic will likely refuse, exposing their true intention.

Introduce Late Payment Legislation

If they refuse to pay the undisputed amount or continue to argue, it's time to formally state your rights. For most B2B invoices in the UK, you are protected by the Late Payment of Commercial Debts (Interest) Act 1998.

You can add this to your email:

"As the invoice was due on [Date] and the work was delivered as per our agreement, the payment is now legally overdue. Under the Late Payment of Commercial Debts (Interest) Act 1998, we are entitled to apply statutory interest at 8% plus the current Bank of England base rate. We are also entitled to a fixed sum compensation payment of [£40/£70/£100, depending on the debt size].

We would prefer not to take this step. To avoid these charges, please ensure the full undisputed amount is paid within the next 7 days."

This is not a threat; it is a statement of fact. It shows you are a serious business owner who understands your legal position. Often, this is enough to prompt payment.

When Talking Fails: The Formal Escalation Path

If the client continues to refuse payment after you have professionally dismantled their quality complaint, you must escalate.

The Letter Before Action (LBA)

An LBA is a final formal letter that states your intention to begin legal proceedings if the debt is not paid by a specific date. It must contain specific information, including the amount owed, a summary of the facts, and a clear deadline. This is a required step before you can take someone to the small claims court.

Money Claim Online (MCOL)

If the LBA is ignored, your next step is the UK Government's Money Claim Online service. This is the standard method for starting a small claims court proceeding for a fixed sum of money. It’s relatively inexpensive and designed to be used without a solicitor, though you should always consider getting legal advice.

A Reality Check: Is It Worth It?

Taking legal action costs time and money, and there's no guarantee of success, especially if the client is determined to argue their case. Before proceeding, weigh the invoice amount against the potential cost and stress of a court claim. Sometimes, for a very small amount, the wisest commercial decision is to write it off and blacklist the client. For larger sums, however, pursuing your payment is essential.

How to Prevent Quality Disputes in the First Place

The best way to handle these disputes is to avoid them. Strengthen your processes to minimise the chance of them happening:

1. Crystal-Clear Proposals and Contracts: Define exactly what is included and, just as importantly, what is not included.
2. Detailed Scope of Work (SOW): Break down deliverables into specific, measurable items.
3. Milestone Sign-Offs: For larger projects, build in formal review and approval stages. Do not start the next phase until the previous one is signed off in writing.
4. Regular Communication: Keep the client updated. A weekly check-in email can pre-empt any concerns before they fester.
5. A Professional Invoicing Process: Use professional software to send clear, itemised invoices. A robust and consistent follow-up process shows you're serious about getting paid. While automated chasing isn't suitable for a complex dispute like this, having a system like InvoiceReminder handle your standard follow-ups ensures every invoice is chased on time, giving you a clear, timestamped audit trail and freeing you up to personally manage exceptions like these.

Frequently Asked Questions

Can a UK client legally refuse to pay an invoice due to poor work?

Yes, a client can refuse to pay if the work genuinely breaches the terms of your contract (e.g., it's incomplete or doesn't meet the agreed specifications). However, they cannot refuse payment based on vague, subjective feelings or for issues they refuse to detail. If they accept and use the work, it becomes much harder for them to argue they shouldn't pay for it.

What if the client starts ignoring me after I ask for specifics?

If a client goes silent after you've asked for a written list of their issues, this is a major red flag for a stalling tactic. Wait a few days, then send a polite follow-up. If they still don't reply, you should move directly to a more formal credit control process, reminding them of the overdue invoice and your right to charge statutory late payment interest.

Can I charge interest on a disputed invoice?

In the UK, for B2B transactions, you can charge statutory interest from the day the invoice becomes overdue. If a client raises a dispute, the best practice is to ask them to pay the undisputed portion immediately. You can state that interest will accrue on any part of the debt that is later found to be wrongfully withheld. This is a complex area, and your contract terms matter, so it's a point to raise in your Letter Before Action.

How much does the UK small claims court cost?

The fee for starting a claim via Money Claim Online depends on the amount you're trying to recover. For a debt up to £300, the fee is currently £35. For a debt of £1,000, it's £70. These fees can change, so always check the official government website. If you win your case, you can usually claim these court fees back from the debtor.

Should I just offer a discount to make the problem go away?

Only offer a discount if you are resolving a genuine quality issue that you can quantify. Offering a "goodwill" discount to a client using stalling tactics sets a dangerous precedent. It tells them that arguing is a valid way to get a price reduction, and they will likely do it again. It's better to stand firm and insist on payment for the work you delivered as agreed.

Automate Your Standard Chasing, Focus on What Matters

Handling a disputed invoice requires your personal attention, empathy, and strategic thinking. It’s a high-value task that can't be automated. However, the time you spend on it is often stolen by the mundane, repetitive work of chasing all your other clients whose payments are simply late. This is where automation becomes a superpower.

InvoiceReminder automates the process of chasing standard overdue invoices for UK small businesses, freelancers, and accountants. By connecting to your Xero, QuickBooks, FreeAgent or Sage account, it sends scheduled email reminders based on rules you configure—from a gentle nudge to a firm final notice. This frees you from the manual grind of follow-ups, ensuring your standard credit control is running professionally in the background, so you can dedicate your valuable time to navigating the complex client conversations that truly matter. At no cost right now, the Free plan provides unlimited email reminders. InvoiceReminder is built by the team behind WeCovr, a UK company authorised and regulated by the Financial Conduct Authority which has arranged over one million insurance policies.