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How to Chase Overdue Invoices From Overseas Customers

A four-phase protocol for credit controllers chasing foreign receivables: day triggers, jurisdiction-specific channels, KPIs, and EU statutory rights.

Chase overseas invoices on a fixed four-phase schedule: soft reminder day 0-3, firm reminder day 7-14, formal demand day 21-30, legal escalation day 45-60, with channel and language matched to the debtor's jurisdiction.
# How to Chase Overdue Invoices From Overseas Customers Chasing foreign receivables is not crisis management. It is a weekly operational routine with fixed day triggers, jurisdiction-specific communication channels, and a logged evidence trail. The credit controller who treats it as a protocol collects more and escalates less.
KEY INSIGHT

Chase overseas invoices on a fixed four-phase schedule: soft reminder day 0-3, firm reminder day 7-14, formal demand day 21-30, legal escalation day 45-60, with channel and language matched to the debtor's jurisdiction.

Fast-scan summary: overseas chase protocol
ElementStandard
Phase 1 triggerDay 0 to 3 past due, soft reminder
Phase 2 triggerDay 7 to 14 past due, firm reminder plus call
Phase 3 triggerDay 21 to 30 past due, formal written demand
Phase 4 triggerDay 45 to 60 past due, legal escalation
EU statutory interestECB reference rate plus 8 percentage points
EU fixed compensationEUR 40 per invoice, automatic
Caseload per controller10 to 15 live files per productive day
Evidence ruleEvery contact logged with date, channel, person, content
PHASE 1 TRIGGER
Day 0–3
Soft reminder
PHASE 2 TRIGGER
Day 7–14
Firm reminder plus call
EU FIXED COMPENSATION
EUR 40
Per invoice, automatic

The four-phase chase protocol

The point of a protocol is that nobody has to think about the next step. The controller opens the aged debtor report on Monday morning, sorts by days past due, and applies the phase that matches. Phase 1, soft reminder (day 0 to 3 past due). A courtesy email to the accounts payable contact. Invoice re-attached as PDF, short subject line, friendly register. No mention of interest, no legal threat, no letterhead. The goal is to surface genuine administrative oversights before they calcify into avoidance. Phase 2, firm reminder (day 7 to 14 past due). Email and phone on the same day. The message is copied to the debtor's senior finance contact, usually the financial controller or finance director. The email references the late-payment interest clause of the governing contract and the statutory right to interest under applicable law. Tone is cooler, still professional. Phase 3, formal demand (day 21 to 30 past due). A letter on company letterhead, or on the letterhead of a licensed local partner where local practice demands it, drafted in the debtor's local language. The letter states the invoice reference, the original amount, the due date, the interest accrued to the date of the letter, the fixed compensation where applicable, and a specific payment deadline of typically 7 to 14 calendar days. This is the document that a court will later see as the pre-litigation demand. Phase 4, legal escalation threshold (day 45 to 60 past due). Instructions pass to local counsel or to an international collection network with licensed local coverage. The file leaves the credit controller's desk and enters formal legal action, whether that is a statutory payment order, a mise en demeure, a mahnbescheid, or a full claim.
Four-phase chase protocol by day trigger
PhaseDay triggerActionToneOwner
1. Soft reminder0 to 3 past dueCourtesy email, invoice re-attachedFriendlyAR clerk
2. Firm reminder7 to 14 past dueEmail plus phone, senior finance copiedProfessional, coolerCredit controller
3. Formal demand21 to 30 past dueLetterhead demand in local language, interest quantifiedFormalCredit manager or licensed local partner
4. Legal escalation45 to 60 past dueInstruct local counsel or international collection networkLitigation registerLegal or external

How to chase an overdue invoice?

Send a soft reminder in the first three days past due, follow with a firm reminder and phone call at days 7 to 14, issue a formal letterhead demand in the debtor's local language at days 21 to 30, and instruct local counsel at days 45 to 60 if the file is still open. Log every contact.

Channel and language by jurisdiction

The biggest single mistake in overseas collection is sending the same English email to every debtor regardless of where they sit. A German company receiving a casual English chaser will file it as spam. A Spanish company will ignore anything that is not a burofax. A Japanese counterpart will feel ambushed if the first contact is a written demand rather than a conversation. Channel is not a stylistic choice. It is the difference between a debtor who pays and a debtor who stalls.
Jurisdiction, preferred channel, language, and formality ceiling
JurisdictionPreferred channel at formal stageLanguageFormality ceiling
Germany, AustriaRegistered letter on letterhead, proof of receiptGermanMahnbescheid (statutory payment order)
NetherlandsAangetekende brief (registered letter), email acceptable earlierDutch or EnglishIncassoprocedure
ItalyPEC (certified email) or signed diffida ad adempiereItalianDecreto ingiuntivo
Spain, PortugalBurofax with certified content and deliverySpanish or PortugueseProceso monitorio
FranceMise en demeure by lettre recommandee avec accuse de reception (LRAR)FrenchInjonction de payer
UK, IrelandEmail workable, formal letter before action escalatesEnglishCounty Court or Commercial Court claim
Australia, New ZealandEmail and letter of demandEnglishStatutory demand
United StatesEmail and phone, letter optionalEnglishState court complaint
UAE, wider Middle EastArabic demand on licensed local letterheadArabicOnshore or DIFC court claim
JapanIn-person or call first, written demand only after amicable channel exhaustedJapaneseNaiyo shomei (content-certified mail)
ChinaRelationship-led conversation first, written escalation laterSimplified ChinesePRC court or CIETAC arbitration
A well-run accounts receivable team maintains template letters in the top five to eight languages of its debtor portfolio. The templates are reviewed by local counsel and refreshed annually so that statutory references and interest formulas stay current.

What to do if a client doesn't pay in the UK?

Issue a written letter before action giving 14 days to pay, reference the statutory right to interest at 8 percentage points above the Bank of England base rate under the Late Payment of Commercial Debts (Interest) Act 1998, include the fixed compensation amount, and if still unpaid escalate to a County Court money claim or statutory demand.

Weekly KPIs the credit controller actually runs on

Chasing by feel produces chasing by accident. Chasing by KPI produces chasing by routine. Four numbers deserve a weekly review, ideally on a Monday morning dashboard. Days Sales Outstanding (DSO). Measured overall and per major debtor. Rising DSO on a specific debtor is an early signal well before phase 3. Collection Effectiveness Index (CEI). The formula is: (beginning accounts receivable plus credit sales minus ending total receivables) divided by (beginning accounts receivable plus credit sales minus ending current receivables), expressed as a percentage. A CEI above 80 percent is acceptable, above 90 percent is strong. Unlike DSO, CEI is not distorted by sales seasonality. Weighted average days past due. Each open invoice is weighted by value, so a single large delinquent file does not get hidden behind a long tail of small paid ones. Count of files aged over the jurisdictional escalation threshold. This is the file count that should have passed to phase 4 but has not. It is the controller's backlog metric. A controller handling overseas receivables should hold 10 to 15 live files per productive working day. Below that the team is overstaffed. Above that, quality degrades, evidence logs thin out, and escalation decisions get postponed.
STRONG CEI
>90%
Above 90 percent is strong
ACCEPTABLE CEI
>80%
Above 80 percent is acceptable
CASELOAD / DAY
10–15
Live files per productive day

Information gain: the EU 2011/7/EU rights you should cite in every reminder

Most templated reminders against European debtors miss the single strongest weapon in the creditor's hand. Directive 2011/7/EU on combating late payment in commercial transactions gives the creditor three automatic rights that exist regardless of what the contract says. First, automatic statutory interest at the European Central Bank reference rate plus at least 8 percentage points, running from the day after the due date, no reminder required. Second, an automatic fixed compensation of EUR 40 per invoice as reimbursement of collection costs, also without reminder. Third, a maximum payment term of 60 calendar days for business-to-business transactions, and 30 days by default where nothing is agreed, except where a longer term is expressly agreed and not grossly unfair to the creditor.
EU STATUTORY INTEREST
ECB + 8pp
Runs from the day after the due date
FIXED COMPENSATION
EUR 40
Per invoice, automatic
MAX PAYMENT TERM
60 days
Maximum payment term of 60 calendar days
These are not contract rights that a debtor can negotiate away. They are statutory rights transposed into the national law of every EU member state. A formal reminder against an EU debtor that does not quote the directive number, the interest formula, and the EUR 40 compensation leaves money on the table and signals that the creditor does not know the file. Phase 3 demands drafted by a serious AR function open with the directive reference.
Evidence log, the four fields that must appear on every contact entry
FieldWhy it matters
Timestamp (date and time, timezone)Establishes sequence for day-trigger compliance and statutory interest
Channel (email, phone, letter, PEC, burofax)Determines admissibility and formality level
Person contacted and roleProves the demand reached a decision-making authority
Message content or attachment referenceForms the evidentiary backbone if the file reaches court

How do I get someone to pay an overdue invoice?

Escalate pressure in controlled steps matched to the debtor's jurisdiction. Move from email to phone to formal letterhead demand in the local language, quantify interest and statutory compensation, copy in senior finance, log every contact, and pass to local counsel at day 45 to 60 if the file remains open.

The toolchain: what runs underneath

The protocol lives on top of three layers. The accounting or ERP system supplies the aged debtor report and a dunning module that triggers phase 1 and phase 2 reminders automatically. Dedicated commercial collections software layers workflow, evidence capture, and reporting for files that have crossed into phase 3. A CRM integration closes the loop so that the sales owner sees the collection status on the customer record before signing the next order. None of this replaces the controller. It removes the clerical drag so the controller can spend the day on the 10 to 15 files that actually need human judgement.
This protocol is not appropriate if: - The debtor has filed insolvency in its home jurisdiction. The file moves to an insolvency proof of debt process, not a chase protocol, and the day triggers cease to apply. - The underlying debt is disputed on merits. Quality complaints, set-off claims, or contract breach counter-claims must be resolved commercially or by arbitration before a collection chase can succeed. - The invoice is outside the limitation period in the debtor's jurisdiction. A time-barred claim cannot be enforced, and chasing it may expose the creditor to regulatory risk in some jurisdictions. - The file is a single very large exposure without documentation gaps. A seven-figure file with clean evidence usually belongs directly in legal counsel's hands, not in a standard four-phase chase.

How InterStation handles an overseas chase portfolio

1. Intake and triage. Every file is placed on the day-trigger grid the same day it lands, with the jurisdiction flag set and the language template selected. 2. Intelligence before action. A debtor check confirms the correct legal entity, registered address, and live finance contact, so the phase 3 demand reaches a person with authority to pay. 3. Phased amicable collection. Soft reminder, firm reminder, and formal demand are executed on the protocol schedule, with every contact logged in the evidence system. 4. Local-language formal demand. Phase 3 is delivered in the debtor's local language on the appropriate channel for the jurisdiction, quoting the directive, statute, or contract clause that establishes interest and compensation. 5. Legal escalation with a real file. If the debtor has not paid by day 45 to 60, the file passes to licensed local counsel with a complete evidence pack, so litigation begins from a position of strength rather than a standing start. InterStation runs this workflow through its [international collection](/operations/international-collections) and [amicable collection](/operations/amicable-collection) operating lines, with structured handover to [legal escalation](/operations/legal-escalation) when the day-45 threshold is crossed. The underlying discipline is borrowed from the approach set out in [international debt collection intelligence](/blog/interstation-international-debt-collection-intelligence), and the jurisdiction flags are maintained against the coverage maps used in posts such as [cost of international debt collection](/blog/interstation-cost-of-international-debt-collection) and the guidance on what to do [when a foreign debtor ignores emails and calls](/blog/interstation-foreign-debtor-ignoring-emails-and-calls).

FAQ

How to chase an overdue invoice?

Apply a four-phase protocol: soft reminder at day 0 to 3 past due, firm reminder with phone call at day 7 to 14, formal written demand on letterhead in the debtor's local language at day 21 to 30, and legal escalation through local counsel at day 45 to 60.

How to collect unpaid invoices from customers?

Run a fixed day-trigger schedule, match the communication channel to the debtor's jurisdiction, log every contact in a timestamped evidence register, quantify statutory interest and fixed compensation where available, and escalate to local counsel once the jurisdiction-specific threshold is crossed.

What to do if a client doesn't pay in the UK?

Issue a letter before action giving 14 days to pay, invoke the Late Payment of Commercial Debts (Interest) Act 1998 for statutory interest and fixed compensation, and if still unpaid file a money claim in the County Court or serve a statutory demand.

How do I get someone to pay an overdue invoice?

Escalate pressure in controlled steps matched to the debtor's jurisdiction, move from email to phone to formal local-language letter, quantify interest and statutory compensation, copy in senior finance, and pass the file to licensed local counsel at day 45 to 60 if it remains open.

How to chase an overdue invoice?

Follow a four-phase protocol: soft reminder at day 3, firm reminder at day 14, formal demand on letterhead at day 30, and third-party escalation at day 45 to 60. Use the debtor’s local language and the culturally-correct communication channel. Log every contact with timestamps for evidentiary purposes.

How to collect unpaid invoices from customers?

Start with a formal written demand that invokes the applicable late-payment statute, Directive 2011/7/EU in the EU or the Late Payment Act 1998 in the UK. If the debtor does not respond substantively, escalate through a licensed local partner under a contingency agreement, and from there to a payment order procedure or civil action.

What to do if a client doesn’t pay in the UK?

Issue a letter before action citing the Late Payment of Commercial Debts (Interest) Act 1998, the base rate plus 8 percent interest, and the GBP 40 to 100 tiered compensation. If unpaid after 7 to 14 days, file in the County Court (Money Claim Online for claims up to GBP 100,000) or issue a statutory demand for a corporate debtor under Insolvency Act 1986 s. 123.

How do I get someone to pay an overdue invoice?

Apply structured pressure through the four-phase protocol: document the delay, invoke the statutory late-payment rights, escalate to a licensed third party, and file a payment order if the claim remains uncontested. Avoid sending a fourth informal reminder. At that point the only message the debtor receives is that the creditor is willing to wait.

The controller's operating position

Treat the overseas ledger as a file room, not an inbox. Every debtor has a jurisdiction flag, a language template, a channel of formal demand, and a day-trigger countdown. Every contact is logged the moment it happens, not retroactively on a Friday. The KPIs are read weekly and acted on the same day. Files that cross day 45 leave the desk and enter legal escalation without hesitation. That is the entire game. A credit controller who follows it will outcollect a team that improvises, at a lower cost and with a cleaner evidence trail when litigation eventually arrives. For a confidential walkthrough of your overseas ledger and a proposed chase protocol calibrated to your debtor jurisdictions, [Contact Us, Free Review](/contact).
Sources and Legal References
1. Directive 2011/7/EU of the European Parliament and of the Council on combating late payment in commercial transactions. https://eur-lex.europa.eu/legal-content/EN/ALL/?uri=celex:32011L0007 2. German Civil Code (BGB) Section 286 on debtor default (Verzug). https://www.gesetze-im-internet.de/bgb/__286.html 3. Late Payment of Commercial Debts (Interest) Act 1998, United Kingdom. https://www.legislation.gov.uk/ukpga/1998/20/contents 4. French Code de commerce, Article L441-10 on late payment penalties. https://www.legifrance.gouv.fr 5. European Central Bank statistical data warehouse, reference rates for statutory interest calculation. https://www.ecb.europa.eu

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