Recovering Unpaid Invoices from Foreign Clients in the EU

When the wire transfer never arrives

You delivered the work. You sent the invoice. Thirty days passed, then sixty. The polite reminders went unanswered. And now you're staring at an unpaid invoice from a client in another country — different language, different legal system, different bank, and, increasingly, a different attitude about whether you'll ever be paid.

If you're a freelancer or SME selling across European borders, this story is not unusual. Late payment is the structural disease of B2B commerce in Europe. According to the European Commission's own monitoring, roughly one in two B2B invoices in the EU is paid late, and SMEs absorb most of the damage. When the debtor sits in another jurisdiction, three additional problems multiply the pain:

1. No shared court. A Belgian freelancer cannot simply walk into the local justice of the peace and have a Spanish company summoned. Even with EU instruments designed to bridge this gap, enforcement crosses borders only with effort.
2. Language and contract law mismatch. Your contract may be in English, your invoice in French, the debtor's accounts payable team operates in Spanish, and the governing law clause — if there even is one — points to a jurisdiction neither of you understands well.
3. Cost asymmetry. A €4,000 unpaid invoice can easily cost €2,000 to litigate in another EU country. Many SMEs write the debt off rather than throw good money after bad. Debtors know this. Some rely on it.

This guide walks you through the practical, expert way to recover unpaid invoices from foreign EU clients. We will look at the legal backbone — the EU Late Payment Directive — and then at how it lands in Belgium, the Netherlands, France, Spain, Ireland, and the UK (which, post-Brexit, plays by slightly different rules). You'll get a step-by-step demand letter sequence with template snippets you can adapt today. And we'll show you when self-help stops being efficient and a professional case assessment becomes the better economic choice.

1. The legal backbone: EU Late Payment Directive 2011/7/EU

Before you draft anything, understand the instrument that does most of the heavy lifting in your favour: Directive 2011/7/EU on combating late payment in commercial transactions. It is transposed into national law in every EU member state and gives B2B creditors three powerful entitlements, automatically, without needing a clause in the contract:

• A statutory payment deadline. In B2B transactions, payment is due within 30 days of the invoice or receipt of goods/services. Parties may agree on longer terms, but anything beyond 60 days must be expressly agreed and not "grossly unfair" to the creditor.
• Statutory interest for late payment. Once the deadline passes, you are entitled to interest at the European Central Bank reference rate plus at least 8 percentage points, accruing automatically. You do not need to issue a reminder for interest to start running.
• A fixed compensation of €40 minimum for recovery costs per invoice, on top of interest, plus reasonable additional recovery costs (lawyer or collection agency fees).

Three things SMEs systematically miss about the Directive:

1. It applies by default, not by contract. Even if your invoice says nothing about interest, the law gives it to you.
2. The €40 fixed compensation is per invoice, not per debtor. If a client owes you on six invoices, that's €240 in fixed compensation, automatically.
3. It is enforceable across borders. A Belgian creditor invoking the Directive against a Spanish debtor is invoking a rule that exists, in functionally similar form, in Spanish law as well.

This is why your first letter should not say "please pay." It should put the debtor on notice that statutory interest is already accruing and that fixed recovery compensation is already owed. The framing changes the conversation.

2. Country-by-country: how the Directive lands locally

Although the Directive harmonises the floor, member states implement it with subtle variations. Here is what matters in practice for the six jurisdictions where Akordans sees the most cross-border invoice disputes.

Belgium

Belgium transposed the Directive through the Law of 2 August 2002, modernised in 2022. B2B payment terms are capped at 60 days, and any longer term is void — the deadline reverts to 30 days. The verification period for goods and services may not exceed 30 days and is included in the payment term. Statutory interest is published twice a year by the Federal Public Service Finance and currently sits well above 10%. Belgian courts are also generous about awarding actual lawyer fees beyond the indemnity scale when bad faith is established.

Netherlands

The Dutch Civil Code (Boek 6, art. 6:119a BW) implements the Directive. The 30/60-day rule applies the same way. A particularly useful Dutch instrument is the WIK-letter (Wet Incassokosten), which formalises the demand process for collection costs against consumers; for B2B, the Directive's €40 minimum applies. Dutch courts and bailiffs (deurwaarders) are efficient and relatively low-cost compared to most other jurisdictions, making the Netherlands one of the easier debtor markets to pursue.

France

France transposed the Directive into the Code de commerce, article L441-10 et seq. Payment terms in B2B are capped at 60 days from invoice date or 45 days end of month (a French specificity). The fixed indemnity is set at €40. French law adds a sharp tool: administrative fines by the DGCCRF (the consumer and competition authority) for late payers, up to €2 million for legal entities. Reporting a chronic late payer to the DGCCRF can be a credible escalation that often unlocks payment.

Spain

Spain transposed the Directive through Ley 3/2004, last reformed in 2022. The B2B cap is 60 days, with no possibility to extend by agreement — Spain went stricter than the Directive's floor. Statutory interest is the ECB rate plus 8 points. A 2023 reform also reinforced the Ley Crea y Crece, which encourages e-invoicing and increases transparency on payment behaviour. Cross-border creditors should know that Spanish courts use the monitorio europeo (European Order for Payment) heavily, and uncontested debts can be liquidated relatively quickly.

Ireland

Ireland transposed the Directive through S.I. No. 580/2012. The 30-day default and 60-day cap apply. Ireland is a common-law jurisdiction, which means written contracts are interpreted more literally and email correspondence carries strong evidentiary weight. The Irish Small Claims Court handles claims up to €2,000, and the Circuit Court up to €75,000, both of which can be accessed by foreign creditors. Statutory interest is published by the Department of Enterprise.

United Kingdom (post-Brexit)

The UK is no longer in the EU, but the legal architecture is similar because the Late Payment of Commercial Debts (Interest) Act 1998, as amended, mirrors the Directive in substance. Statutory interest is Bank of England base rate plus 8%, fixed compensation is £40 / £70 / £100 depending on debt size, and reasonable recovery costs are recoverable. The procedural difference matters: post-Brexit, the European Order for Payment and European Small Claims procedures are no longer available against UK debtors. Enforcement now relies on the Hague Convention 2019 (where ratified) or bilateral arrangements. Practically, this means UK debtors require more careful jurisdiction-clause planning at the contract stage, and recovery often runs through the English courts via an English Letter Before Action and, if needed, a County Court Money Claim Online.

3. The step-by-step demand letter sequence

A common mistake SMEs make is escalating too late and too softly. The Directive gives you leverage from day 31 — use it. Here is the sequence we recommend, with timing and template snippets.

Step 1: Friendly reminder (Day 31–35 after invoice date)

Tone: cordial, assumes oversight. Purpose: create a paper trail and re-anchor the deadline.

Subject: Reminder — Invoice [INV-2026-014] now overdue

Dear [Name],

I hope this finds you well. Our records show that invoice [INV-2026-014], dated [date], for €[amount], became due on [due date] and is currently unpaid.

Could you confirm the expected payment date, or let me know if there is any administrative issue on your side I can help resolve? A copy of the invoice is attached for convenience.

Best regards, [Your name]

Send by email, with a read receipt where possible. Keep a copy in your records.

Step 2: Formal demand (Day 45–50)

Tone: professional, legal. Purpose: invoke the Directive explicitly and start the interest clock visibly.

Subject: Formal demand for payment — Invoice [INV-2026-014]

Dear [Name],

Despite our reminder of [date], invoice [INV-2026-014] in the amount of €[amount] remains unpaid. The original due date was [due date].

Pursuant to Directive 2011/7/EU on combating late payment in commercial transactions, transposed into [debtor country] law as [local statute], the following amounts are now owed:

• Principal: €[amount]
• Statutory interest accruing from [due date + 1] at the ECB reference rate plus 8 percentage points (currently [x]% per annum)
• Fixed recovery compensation of €40
• Reasonable additional recovery costs, to be itemised

Please remit the full outstanding amount within 14 days of this letter to the bank details below. Failing payment within that period, we will refer the matter to professional debt-recovery and, if necessary, judicial proceedings, the costs of which will be added to the claim.

Yours sincerely, [Your name]

Send by email and by registered post or trackable courier. The dual channel matters in many jurisdictions for procedural admissibility later.

Step 3: Final notice / mise en demeure (Day 65–75)

Tone: firm, last opportunity before escalation. Purpose: satisfy the formal "putting in default" requirement that some jurisdictions still expect, and signal that court or enforcement is imminent.

Subject: Final notice before legal action — Invoice [INV-2026-014]

Dear [Name],

This letter constitutes a formal mise en demeure / Inverzugsetzung / requerimiento formal de pago.

The total outstanding amount, including statutory interest accrued to date and fixed compensation, is now €[total]. A breakdown is attached.

Unless full payment is received within 8 calendar days of receipt of this letter, we will, without further notice, initiate cross-border recovery proceedings, which may include the European Order for Payment procedure (Regulation 1896/2006) or equivalent national procedure, and report your company to the relevant competent authorities where applicable.

Yours sincerely, [Your name]

Three principles that hold across all three letters:

• Always include the invoice as an attachment. Debtors stall by claiming they "never received it."
• Always reference the Directive by number. It signals you know the rules.
• Always state amounts precisely, including interest accrued to the date of the letter. Vagueness invites negotiation; precision invites payment.

Around 60–70% of cross-border B2B invoices that survive Step 1 are paid by Step 2 or Step 3. The remainder is where the real work begins.

4. When to escalate — and to whom

Self-help has a ceiling. If you have sent three letters across roughly 75 days and the debtor is silent, partially paying, or disputing on flimsy grounds, you are no longer in a collections situation; you are in a dispute that needs a structured intervention.

There are three escalation paths, and they are not mutually exclusive.

Mediation. Cross-border mediation is dramatically faster and cheaper than litigation. A trained mediator — particularly one with bilingual capacity and familiarity with B2B commercial norms in both jurisdictions — can typically resolve a disputed invoice in 2–4 weeks. The EU's Mediation Directive 2008/52/EC ensures that settlements reached in one member state are enforceable in another. Mediation is the right choice when the debtor is responsive but contests something — quality, scope, timing — that a court would also have to assess.

European Order for Payment (EOP). For uncontested or weakly contested debts in EU jurisdictions (excluding the UK and Denmark), Regulation 1896/2006 lets you obtain an enforceable order using a standardised form, in your own member state, that is automatically recognised across the EU. It works best for clear, document-backed invoices where the debtor is non-responsive rather than disputing.

Professional case assessment and structured enforcement. This is where most SMEs over- or under-react. They either give up too early or hire a litigator too quickly. The middle path is a professional case assessment: a brief, fixed-fee analysis of the contract, the invoice, the correspondence, and the debtor's jurisdiction, that tells you (a) the realistic recovery probability, (b) the cheapest viable route, and (c) the cost-to-benefit ratio. From there, structured enforcement — coordinated demand, jurisdiction-appropriate procedure, and, if needed, local counsel — runs on a known budget.

This is precisely what Akordans was built for. Our Case Assessment service (€29) gives you a structured analysis within 48 hours: jurisdiction, applicable late-payment regime, recovery probability, and recommended next step. If the case warrants escalation, our Enforcement service (€199 per party) coordinates the cross-border demand, EOP filing where applicable, and liaison with local counsel — at a fraction of what a traditional litigation engagement costs, and with AI-assisted document handling that keeps the process fast and bilingual.

Empowerment matters here: most unpaid invoices do not need a lawyer. They need a clear, well-timed sequence and, when the debtor digs in, a credible escalation that the debtor can verify. That credibility is what unlocks payment without a courtroom.

5. FAQ

Does the EU Late Payment Directive apply automatically, even if my contract is silent on interest?

Yes. Directive 2011/7/EU and its national transpositions apply by default to B2B transactions in the EU. You are entitled to statutory interest from the day after the payment deadline and to the €40 fixed compensation per invoice, regardless of whether your contract mentions it. Contractual clauses that try to exclude these entitlements are generally void as "grossly unfair" to the creditor.

What is the maximum legal payment term I can be forced to accept in a B2B contract in the EU?

The default deadline is 30 days. Parties may agree on a longer term, but it cannot exceed 60 days unless expressly agreed and not grossly unfair to the creditor. Some member states, notably Spain and France, cap B2B terms at 60 days with no possibility to extend. If your invoice says "120 days" and you're a small supplier, that clause is likely unenforceable.

How much interest can I actually claim on an unpaid invoice from a French or Spanish client?

At least the European Central Bank reference rate plus 8 percentage points. The ECB publishes the reference rate every six months. In 2026 this typically lands the statutory interest rate above 10% per annum. You also claim a €40 fixed indemnity per invoice and reasonable recovery costs (lawyer or collection fees that are proportionate to the debt).

Can I still use the European Order for Payment against a UK client after Brexit?

No. The European Order for Payment (Regulation 1896/2006) and the European Small Claims Procedure no longer apply to UK debtors. UK recovery now runs through English procedures — typically a Letter Before Action followed by a Money Claim Online — and recognition relies on the Hague Convention 2019 where applicable, or on standard English enforcement against UK assets.

My foreign client claims the invoice is "in dispute." What do I do?

First, ask them in writing to specify the dispute precisely: which deliverable, which clause, which amount. Vague disputes are a stalling tactic. If the dispute is concrete, mediation is faster and cheaper than litigation, and the EU Mediation Directive makes settlements enforceable across borders. If the dispute is fabricated or paper-thin, document it carefully — a manufactured dispute is itself evidence of bad faith and can be the basis for higher recovery costs. A case assessment is the right next step here, because the answer depends on the specific facts and the debtor's jurisdiction.

How long do I have to chase an unpaid invoice before the claim becomes time-barred?

Limitation periods vary: 5 years in France and Belgium, 5 years in Spain (3 years for some commercial claims), 5 years in the Netherlands (with some exceptions), 6 years in Ireland and the UK. The clock generally starts on the original due date. The practical rule: do not let an unpaid invoice age more than 12–18 months before formal escalation. The longer you wait, the more the debtor's records degrade, key staff leave, and your evidentiary position weakens — even if the legal limitation period is still running.

Take the next step

If you are sitting on an unpaid invoice from an EU client and you are not sure whether to escalate, escalate to whom, or whether the recovery economics make sense, do not guess. A structured case assessment costs less than the interest you are already owed and tells you exactly what to do.

• Start with a Case Assessment — €29, 48-hour turnaround.
• If the analysis points to escalation, our Enforcement service handles the cross-border procedure end to end.

The Directive is on your side. The procedures exist. What's usually missing is the right sequence and the credible escalation path. That's what we build.