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REGULATED CLIENT ACCOUNT

The ring-fenced account

Payment Institutions (PIs), Electronic Money Institutions (EMIs), and investment firms are legally required to isolate and safeguard their clients' funds with a licensed credit institution. Memo Bank is authorised to open and hold regulated accounts. Your ring-fencing flows are managed via API in real time, with no manual intervention required.

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Why Memo Bank and not a payment institution?

Only a licensed credit institution can hold a ring-fenced account. Memo Bank is authorised by the ECB and regulated by the ACPR. Payment institutions — Swan, Lemonway, Qonto, Stripe — do not have this status, regardless of the other services they provide.


Memo Bank is particularly well-suited to payment institutions, electronic money institutions, and investment firms that process thousands of transfers or direct debits per month and need to orchestrate their flows via API. A settlement account can be opened alongside the ring-fenced account to facilitate day-to-day operational management.


Our regulatory expertise is recognised, and our legal teams hold contract templates reviewed by the ACPR for drafting these account agreements.

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LISE, Lightning Stock Exchange, ring-fences its funds with Memo Bank

Memo Bank provides the banking infrastructure and ring-fenced account required for the instant settlement of all transactions processed by LISE, the first European trading platform for tokenised equities for SMEs and mid-caps.

The ring-fenced account

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The ring-fenced account: regulatory protection of funds

The ring-fenced account — sometimes referred to colloquially as an escrow account — segregates funds held on behalf of third parties. It earns interest, by default, at 25% of the €STR.

In accordance with Articles L. 522-17 (PIs) and L. 526-32 (EMIs) of the French Monetary and Financial Code, this account cannot be seized by your creditors and is subject to strict rules of use: it can only be debited to execute your clients' payment instructions or to return their funds. Balances are covered by the FGDR.

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API-driven management of your ring-fenced account flows

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Flow management via API

Managing flows via API in real time ensures D+1 compliance with the ACPR. Each movement is timestamped, traceable, and auditable at any time.

Our API is modular and adapts to your flow architecture. For example, on the collection side, SEPA direct debits and incoming SEPA credit transfers are triggered directly from your systems. Funds are then transferred within seconds from the settlement account to the ring-fenced account via instant payment. You are notified in real time by webhook at each event. Disbursement to your end beneficiaries is made via instant or bulk payment, according to your needs.

Développeur recevant un webhook de virement entrant via l'API Memo Bank
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Bidirectional virtual IBANs

A virtual IBAN assigned to each end client or intermediary allows incoming and outgoing payments to be automatically identified and reconciled. Virtual IBANs can be generated via API.

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Access rights management

Consultation and operational rights on the ring-fenced account are configured within the agreement.


1. Internal access: administrators have full rights by default, and team members can be invited with restricted permissions.


2. Third-party access: in arrangements involving multiple stakeholders (auditor, custodian bank, etc.), read-only access can be granted to external entities, directly from the Memo Bank platform or via standard banking exchange protocols (Swift MT940, EBICS).

Gestion des accès utilisateurs dans l'interface Memo Bank

Ring-fenced account features

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About the ring-fenced account

Account name: Ring-fenced account (cannot be modified)
Negative balance: not permitted
Bidirectional virtual IBANs: available on request
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Remunerated deposits

25% of the €STR by default
Monthly interest payments credited to the main account
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Incoming and outgoing flows

Incoming direct debit (SDD in): not permitted
Outgoing direct debit (SDD out): available on request
Outgoing SEPA standard, instant, or SWIFT transfer
API-driven flow management

Frequently asked questions about the ring-fenced account

What is a ring-fenced account?

A ring-fenced account (also known as a safeguarding account) is a mandatory bank account for Payment Institutions (PIs) and Electronic Money Institutions (EMIs). Set out in Articles L. 522-17 and L. 526-32 of the French Monetary and Financial Code, it separates the institution's own funds from those deposited by its clients. This separation ensures that client funds remain protected, even in the event of a PI or EMI failure.

Is a ring-fenced account mandatory for a PI or an EMI?

Yes. PIs and EMIs are required to safeguard their clients' funds with a licensed credit institution no later than the business day following their receipt (D+1), in accordance with Articles L. 522-17 and L. 526-32 of the French Monetary and Financial Code. Entities benefiting from a partial exemption from the ACPR (position P-2022-01) may, under strict volume and scope conditions, benefit from a safeguarding waiver. This waiver ceases to apply as soon as volume thresholds are crossed or the activity extends beyond the declared scope, which requires continuous monitoring.

How do you ensure D+1 compliance?

Ring-fencing must take place no later than the business day following the receipt of funds — this is known as D+1 compliance. Failure to comply exposes the company to sanctions by the ACPR, which can go as far as the withdrawal of its licence.


Managing flows via API in real time enables full automation of the transfer from the settlement account to the ring-fenced account, with complete timestamping and traceability for your ACPR audits.

Are ring-fenced account balances remunerated?

Yes. Deposits in the ring-fenced account earn interest at 25% of the €STR by default. Interest is calculated daily and paid monthly into the main current account. Excess liquidity can also be invested in money market funds (D+1 availability), provided this has been included in your ACPR authorisation application.

Which bank can legally open a ring-fenced account?

Only a credit institution licensed by the ECB or an equivalent national authority. Payment institutions do not hold this status. Memo Bank is licensed by the ECB and regulated by the ACPR.

Are ring-fenced account funds covered by the Deposit Guarantee and Resolution Fund (FGDR)?

The FGDR applies a specific mechanism to third-party funds: the guarantee (up to €100,000) is calculated at the level of each beneficiary — meaning each end client whose funds are deposited in this account. Each client thus benefits individually from FGDR protection, up to the amount of their claim, without the cap being shared among all of the payment institution's clients (Article L. 312-4-1 of the French Monetary and Financial Code).

How are account access rights managed?

Consultation and operational rights on the ring-fenced account and settlement account are configured within the account agreement and managed from the Memo Bank platform.


Internal access: administrators have full rights by default, and team members can be invited with restricted permissions.


Third-party access: in arrangements involving multiple stakeholders (auditor, custodian bank, etc.), read-only access can be granted to external entities, directly from the Memo Bank platform or via standard banking exchange protocols (SWIFT MT940, EBICS). Incoming and outgoing flows can also be managed separately with differentiated rights — for example, granting the PI/EMI's agents management of incoming flows whilst allowing the PI/EMI itself to authorise debits.



What is the difference between a settlement account and a ring-fenced account?

The ring-fenced account is the regulatory account that legally protects client funds. The settlement account is the operational account that orchestrates flows: collection, controls, company charges, and balancing before ring-fencing. Both can be opened simultaneously under a single account agreement.

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Your flows ring-fenced, automated, managed in real time.

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