High Court Blocks Mars Capital from Enforcing €351k Debt

In a significant decision for Irish debt enforcement, the High Court has refused an application by Mars Capital Finance Ireland DAC for leave to execute an aged debt judgment exceeding €350,000 against two borrowers. Mr Justice David Holland ruled that while the fund was entitled to be substituted as the plaintiff in the long-running proceedings, it had failed to provide the necessary evidentiary foundation to justify the substantial lapse of time since the original judgment was obtained.

Default Judgment and the Six-Year Enforcement Rule

The dispute stems from a commercial borrowing arrangement dating back to March 2007, when Stephen Shiels and Dessie Shiels mortgaged property to AIB Mortgage Bank to secure a loan facility. In June 2017, following a default in repayments, AIB issued a summary summons confined solely to a money claim for €350,977.65 alongside €448 in legal costs, rather than seeking possession under the mortgage security. The bank successfully secured judgment in default of appearance in the Central Office of the High Court in November 2017, having explicitly waived any entitlement to ongoing contractual interest at that juncture.

Although an order of fieri facias was subsequently issued through the Courts Service, the execution was never levied against the borrowers. AIB subsequently divested the underlying loan facility, associated security, and related judgment debt to Mars Capital as part of a wider loan portfolio sale. In July 2025, Mars initiated a motion under Order 17, rule 4 of the Rules of the Superior Courts to be substituted as plaintiff, and under Order 42, rule 24, which requires a creditor to obtain leave of the court before executing a judgment that has lain dormant for more than six years.

Evidentiary Deficits and the Burden on Debt Assignees

While the defendants did not dispute their indebtedness or the validity of the 2017 judgment, Mr Justice Holland emphasised the stringent principles governing belated execution. Under Irish law, an assignee seeking to enforce a dormant judgment is not required to justify the passage of time as if it were a default, but it bears the strict legal burden of providing a reasonable explanation for the delay. The court affirmed that such delays must be scrutinised both as an aggregate period and in distinct chronological tranches, covering the pre- and post-assignment phases.

Crucially for financial institutions and non-bank loan acquirers, the High Court reiterated that mere assertions contained in affidavits carry very little weight. This is particularly pronounced when a deponent from an acquiring entity lacks first-hand knowledge of decisions taken by the original lender to defer execution. Mr Justice Holland noted that although a reasonable explanation for the inaction might theoretically exist, Mars had simply failed to deploy the admissible evidence required to establish it. A debt purchaser cannot rely on vague institutional assumptions to bridge years of procedural inertia.

Substitution Permitted but Enforcement Blocked

The High Court held that Mars had met the procedural criteria under Order 17, rule 4 to be formally substituted for AIB as the plaintiff on record. However, because the fund fell short on its evidentiary duties under Order 42, rule 24, the judge firmly refused liberty to execute the judgment against the Shiels brothers. The court also observed that because AIB had formally waived continuing contractual interest to secure the default judgment in 2017, Mars may be precluded from recovering post-judgment interest at the rates it had asserted.

In addressing costs, Mr Justice Holland remarked that the defendants had emerged with 'somewhat the better of the encounter', despite the formal substitution of the plaintiff. The court made a provisional order granting the borrowers half of their legal costs in defending the motion. The perfection of the order was stayed for 21 days with liberty to apply, providing both parties time to assess the ruling.

Broader Implications for Creditors and Borrowers

The ruling highlights the rigorous approach Irish courts take toward loan purchasers seeking to reactivate dormant judgments. While portfolio sales from mainstream banks to credit servicing firms remain widespread across the State, assignees must maintain meticulous operational audit trails to satisfy the Courts Service and judiciary when enforcing legacy debt. Without direct, credible evidence detailing why an enforcement was delayed—including during the originating bank's tenure—creditors risk seeing significant debt recoveries permanently frustrated.