Can Collection Companies Charge Interest? B2B Rules Explained

ECB+8ppEU statutory interest

€40Fixed per invoice

10–25%Agency contingency

Can Collection Companies Charge Interest Directly to the Debtor?

ECB+8ppEU Directive 2011/7Automatic from due date

Base+9ppGermany BGB §288Highest EU rate

Base+8%UK Late Payment ActBoE rate + 8pp

ECB+10ppFrance L.441-10Highest EU rate

BIKNetherlands sliding scaleRecoverable from debtor

Collection process

1

Statutory interest accrues

No demand needed — ECB+8pp runs from due date automatically in all EU member states.

2

Formal demand (quote statute)

Cite §288 BGB / Directive 2011/7 / Late Payment Act. Add €40 fixed + statutory interest calculation.

3

Agency contingency (creditor-side)

10-25% paid by creditor from recovered funds. Agency does NOT add own fee to debtor's obligation.

Your overdue invoice has been sitting with a third-party agency for three weeks, and the first statement back from them shows a number larger than your original claim. The short version: the agency is not charging interest to the debtor on its own behalf. The interest belongs to you, the creditor, under contract or statute.

In almost every B2B jurisdiction the answer is no. A collection agency is an agent of the creditor. It enforces rights that already exist in the creditor's books. It does not originate a new interest rate against the debtor. When a demand letter lists principal plus interest plus fixed compensation, those line items trace back to a statute or a contract the creditor holds, not to a rate the agency invented.

Three roles need to stay separated in every file: the creditor owns the principal, statutory interest, and fixed compensation. The debtor owes those amounts. The agency is paid by the creditor, typically as a percentage of collected funds.

Statutory Interest Rights Belong to the Creditor

EU Directive 2011/7/EU sets a B2B floor of ECB reference rate plus 8 percentage points, plus a fixed EUR 40 recovery compensation per invoice. Member states transposed this into national law, with several going higher. Germany reaches base rate plus 9 under BGB §288(2). France sits at ECB plus 10 under Article L.441-10. The Netherlands has the BIK sliding scale of recoverable extrajudicial collection costs. The UK grants Bank of England base rate plus 8 percent plus tiered compensation of GBP 40, 70, or 100 per invoice depending on debt size under the Late Payment of Commercial Debts (Interest) Act 1998.

What the Agency Charges the Creditor

Agency revenue is structured as a contingency fee (10-25% of collected funds), occasional file-opening fees (USD 100-500), and pass-through court costs — none of which are levied on the debtor. Contingency pricing aligns the agency's economics with the creditor's recovery.

Debt Collection Fees the Creditor Can Add to the Debtor's Bill

The creditor's claim against the debtor can legitimately include: principal, statutory interest, fixed statutory compensation (EUR 40 / GBP 40-100), and reasonable further recovery costs under Article 6(3) of Directive 2011/7/EU. The agency's own contingency fee is paid by the creditor and is not added to the debtor's bill — except in regulated regimes like the Dutch BIK. In the US consumer context, FDCPA § 808(1) prohibits adding unauthorized amounts.

Can collection companies charge interest?

A collection agency does not charge its own interest to the debtor. It calculates interest the creditor is already entitled to under contract or statutory late-payment law. In the EU and UK that means ECB or Bank of England base rates plus 8 to 10 percentage points, depending on jurisdiction, running from the day after the original invoice due date.

What fees can a debt collector add to the original debt?

A commercial debt collector can claim statutory interest, fixed compensation (EUR 40 under EU Directive 2011/7, GBP 40 to 100 in the UK), and reasonable further recovery costs where national law allows. The agency's own contingency fee is paid by the creditor.