What to do when a client won't pay your invoice

A client not paying an invoice is one of the worst feelings in freelance work: it's not just the money, it's not knowing why. Most of the time the answer is boring: the invoice got buried. But sometimes it isn't. Here's the escalation path, in order, from "probably just lost in an inbox" to "this is going to small claims court."

The escalation path

1. Confirm it's actually not paid or lost. Check your own spam/junk folder for a bounce notice, and confirm the email address is still correct. Resend with a short, neutral note: "Just want to make sure this reached you, resending in case it got lost."
2. Send a firmer follow-up with a specific new deadline. Not a generic nudge, but a clear, dated ask: "This is now X days overdue. Please arrange payment by date." No apology, no hedging.
3. Pause further work or deliverables if the relationship is ongoing. If you're mid-project or on retainer, stop before extending more unpaid credit, and tie it directly to the invoice.
4. Send a formal written demand. Reference the invoice number, the contract or payment terms, the total owed, and a firm final deadline, in writing, not a casual message.
5. Decide between a collections agency and small claims court, and understand what each actually costs and takes before you commit to either.
6. Write it off if pursuing it costs more than it's worth. This is a legitimate business decision, not a failure.

Most unpaid invoices never get past step 2. The vast majority are administrative, not adversarial: someone's on vacation, the invoice landed in the wrong inbox, or an approver hasn't gotten to it yet. Treat every invoice as a mistake until it proves otherwise.

Step 1: Rule out the boring explanation first

Before you assume a client is dodging you, rule out the more common explanation: the invoice never actually landed. Check that you sent it to the right address, that it actually left your sent folder, and that it didn't land in a promotions tab on their end. It sounds too simple to be worth a whole step, but it resolves a genuinely large share of "non-payments."

Resend it with a short, low-tension note, something like "Wanted to make sure this reached you, resending just in case." No accusation, no assumption of bad faith. Check your invoicing tool for read or delivery status first. If you're still tracking this by scanning email threads to see what's been sent, that's worth fixing on its own. See track client payments without a spreadsheet.

If this is the first time you're escalating past a standard reminder sequence, make sure you've actually sent one. See invoice reminder email templates for the pre-due and just-past-due stages that come before any of this.

Step 2: A firmer follow-up with a real deadline

If the invoice was received and still hasn't been paid, the next message needs to do two things a friendly reminder doesn't: state the exact number of days it's overdue, and give a specific new deadline rather than a vague "whenever you get a chance." Something like:

"Invoice #114 is now 12 days past due (€1,800). Please arrange payment by Friday, May 29. Let me know if something's holding this up on your end."

That last line matters: it invites an explanation without demanding one, and most of the time you'll get a real answer: an approval delay, a change of accounts-payable contact, a budget hold. Drop the exclamation points and softening language from earlier reminders; this should read routine but serious, not emotional.

Step 3: Pause work if there's more to deliver

If this is a one-off project that's already fully delivered, skip to step 4. But if you're mid-engagement (more milestones to hit, a retainer still running, ongoing support), stop extending unpaid work the moment you send the firmer follow-up. Say it directly: "I'll pick this back up once invoice #114 is settled."

This is also the point to check what your contract says. A well-written freelance contract should let you pause deliverables on overdue payment without it counting as a breach. If yours doesn't, that's a gap to close before your next engagement. See freelance contract essentials.

Step 4: A formal written demand

If steps 2 and 3 haven't moved things after a couple of weeks, the next message should stop sounding like a nudge and start sounding like a paper trail: short, factual, and referencing the specific terms the client agreed to:

• The invoice number, issue date, and amount owed
• The payment terms from your contract or proposal (e.g., "Net 30, per the signed agreement dated March 3")
• Any late fee that applies, if your contract specifies one
• A firm final deadline, typically 7 to 10 days out
• A plain statement of what happens if the deadline passes (collections, legal action, or simply that the relationship ends)

Keep the tone flat, not angry. This message's only job is proving you reasonably asked for payment before taking it further. If your contract includes a late fee clause, this is the moment to invoke it, not just mention it. See late payment fee clause wording and should you charge a late fee for whether it's worth applying now or holding it as leverage.

Step 5: Collections or small claims, and what they really cost

If a formal demand goes nowhere, you have two realistic paths, and both cost more time and money than people expect.

Collections agencies typically take a contingency fee of 25% to 50% of whatever they recover, and they recover a small fraction of what's handed to them. They're built for volume: a business handing over hundreds of delinquent accounts, not a single €2,000 invoice from one client, and a real agency will likely say no to that or take it and recover nothing.

Small claims court is usually the more practical option for freelance-sized invoices, but it's not free or fast. Every EU country runs its own procedure, with its own court fees and claim limits, and you'll need a current address for the client, its own problem if they've gone quiet. If the client is in another EU country (Denmark excepted), the European Small Claims Procedure (opens in a new tab) covers cross-border claims up to €5,000 and runs largely on paper, so you usually don't have to travel for a hearing. Even a straightforward case can take months from filing to judgment, and winning doesn't guarantee collecting: you may still need a bailiff to enforce the judgment if the client doesn't pay voluntarily.

The math that matters: court fees plus your own unpaid time against the invoice amount. For a €600 invoice, it's rarely worth it. For a €6,000 invoice, it often is, especially since a firm written demand often settles things before you ever reach a courtroom.

Step 6: Knowing when to write it off

Writing off an unpaid invoice isn't giving up. It's a decision based on the actual numbers instead of the frustration. Weigh it against:

• The invoice size. Below a few hundred euros, the time cost of filing paperwork or negotiating with a collections agency usually exceeds the recovery.
• How much time pursuing it will actually take. Small claims isn't a one-afternoon errand: count the filing, the serving, the hearing, and the follow-up needed to collect.
• Whether the client is reachable at all. A client who's stopped responding and may have closed the business is a different case than one who's stalling but still answering.
• What it's worth to you to be done with it. Sometimes the value of closing the loop is real, even if the math is close.

If you write it off, you can typically deduct it as a bad debt expense, and in many EU countries you can also reclaim the VAT you already paid (Article 90 of the EU VAT Directive (opens in a new tab) lets them allow this) over on the unpaid invoice, both worth flagging to whoever handles your taxes. Either way, do it deliberately rather than letting it fade, so your records stay honest about what you actually got paid for the year.