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CAT Trap: How Finance Act 2024's Reporting Rules Expose Family Loans

CAT Trap: How Finance Act 2024's Reporting Rules Expose Family Loans

LearnFormula Editorial•Feb 26, 2026•
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The "Wait and See" Approach to Family Finance Is Dead

For decades, the Capital Acquisitions Tax (CAT) treatment of intra-family loans was relatively passive. Families often provided interest-free loans to children for property purchases or business startups, comfortable in the knowledge that tax issues could largely be deferred until the loan was written off or the parent passed away. This allowed for a "wait and see" approach to estate planning.

That safety net has been removed.

With the enactment of Finance Act 2024, Revenue has tightened the compliance net around these arrangements. The amendments to Section 46 of the Capital Acquisitions Tax Consolidation Act (CATCA) 2003 have operationalized a mandatory reporting regime for "specified loans."

If your firm is still treating family loans as dormant items on the balance sheet, you may be exposing your clients to immediate Revenue scrutiny.

The New Rule: Visibility Equals Liability

Previously, a low-interest or interest-free loan was often only examined by Revenue during a broader audit or upon the death of the lender.

The Change:
Under Section 46(4A) (introduced in Finance (No. 2) Act 2023 and refined in Finance Act 2024), a "specified loan" is now a reportable event. A specified loan generally refers to a loan between close relatives (e.g., parent to child) where no interest is paid, or interest is paid at a rate lower than the specified market rate.

The legislation requires the beneficiary (the borrower) to file a CAT return (Form IT38) reporting the benefit of the "free use of money," even if no tax is payable.

The "So What": The Compliance Trap

The implications for compliance workflows are significant. This amendment effectively accelerates the visibility of family wealth transfers.

The Reporting Trigger: €335,000 (Fixed)

A critical detail often missed is the specific trigger for this reporting requirement. While standard CAT filing obligations are often linked to 80% of the relevant Group threshold, the mandatory reporting for specified loans operates differently.

The requirement to file a return is triggered if the aggregate outstanding balance of all specified loans exceeds €335,000 on any day during the relevant period.

Crucially: Although Finance Act 2024 increased the Group A tax-free threshold to €400,000, the reporting trigger for specified loans remains fixed at the €335,000 balance level. This means a client could be well within their tax-free limit but still be legally required to file a return.

Scenario Analysis

Consider a client, Patrick, who lent €380,000 to his daughter, Siobhán, in 2024 to buy a house, charging 0% interest.

  • Old Landscape: The loan might have sat on Patrick's balance sheet for years. Siobhán might only have worried about CAT if the loan was forgiven.
  • Current Rules: Because the loan balance (€380,000) exceeds the €335,000 reporting trigger, Siobhán must file a Form IT38. She is deemed to receive a gift annually equal to the foregone interest.

The Trap: Even if the annual "gift" of interest is within the €3,000 Small Gift Exemption, the reporting obligation is triggered by the loan balance itself. Failure to file the return puts Siobhán in non-compliance, potentially attracting penalties and keeping the statute of limitations open indefinitely.

Action Plan: Protecting Your Practice and Clients

To mitigate the risk of non-compliance under the current regime, firms should immediately implement the following steps:

  1. Audit Loan Books: Review all client files for outstanding loans between connected persons (especially parent-child).
  2. Assess Reporting Triggers: Identify any loans where the outstanding balance exceeded €335,000 at any point in the year. Remember, this is a fixed figure and does not float with the new €400,000 Group A threshold.
  3. File Returns: Ensure Form IT38s are filed for all reportable loans.
    • Deadline: The filing deadline is 31 October for benefits with a valuation date between 1 January and 31 August of that year.
    • If the valuation date falls between 1 September and 31 December, the deadline moves to 31 October of the following year.
  4. Formalize Agreements: Ensure all family loans have proper documentation. Revenue may treat undocumented loans as outright gifts, triggering an immediate 33% tax charge on the capital sum.
  5. Client Communication: Send a targeted update to clients with family businesses or known family financing arrangements, warning them that "informal" loans are now on Revenue's radar.

The Solution

Navigating the intersection of family finance and tax statute is complex. To help you master these rules, we are hosting a dedicated technical webinar, "CAT and Family Loans: Navigating the Finance Act 2024 Amendments," later this month. We will walk through practical case studies of loan reporting and how to calculate the "free use of money" benefit correctly.