IT38 return: plain-English guide for Irish probate
The Revenue return a beneficiary files when their gift or inheritance takes them above 80% of the applicable CAT group threshold.
What it means, in plain English
The IT38 is the Revenue return each beneficiary files when their cumulative gifts and inheritances from a CAT group reach 80% of the group threshold. The beneficiary files it themselves through Revenue myAccount, separately from the executor's SA2 filing. The deadline depends on the month of the valuation date.
IT38 return in Irish probate practice
The 80% filing trigger is a practical rule that catches beneficiaries whose running total is approaching their group threshold. In 2026, the filing triggers are €320,000 for Group A, €32,000 for Group B, and €16,000 for Group C. Once the beneficiary crosses that figure in their lifetime aggregate, they must file an IT38, even if no tax is actually owed. The filing itself sets out the current benefit, every prior benefit from the same group, any reliefs claimed, and the CAT calculation. If tax is owed, it is paid with the return. The 31 October deadline works as follows: for valuation dates in January to August of a given year, the filing and payment are due on 31 October of that same year. For valuation dates in September to December, they are due on 31 October of the following year. Late filing triggers a surcharge of 5% within two months and 10% after, plus daily interest at roughly 0.0219%. A beneficiary who crosses the 80% threshold and fails to file is at risk of these penalties even if no tax was actually due.
Worked example
Caoimhe receives a €50,000 inheritance from her aunt in July 2026. That is her second Group B benefit: she received €25,000 from another aunt in 2015. Her Group B running total is now €75,000, which is well above the 80% filing trigger of €32,000. She files the IT38 by 31 October 2026. The calculation shows €75,000 minus the €40,000 Group B threshold leaves €35,000 taxable, and CAT at 33% is €11,550. She pays the €11,550 with the return.
The statutory position
Sections 45 to 47 of the Capital Acquisitions Tax Consolidation Act 2003 cover the IT38 return. Section 51 covers interest on late payment. Revenue's published IT38 guidance sets out the current filing mechanism through myAccount and the surcharge schedule.
Related terms in this glossary
Related reading
How ProbatePack handles IT38 return
Everything in the Preparation Pack plus the full inheritance-tax layer. CAT calculator for each beneficiary, individual IT38 drafts, Dwelling House Exemption assessment, Section 72 check, Agricultural and Business Relief assessments where applicable, and the Revenue clearance letter. For estates that will cross the Group A threshold.