How content on Revenue Penalty Calculator is produced, verified, and updated.
Content on this site is researched and drafted by Vitor Oliveira Alves, co-founder of D'Emilia Accounting, and reviewed for technical accuracy by Marina Luna Oliveira d'Emilia, a qualified accountant with direct professional experience preparing voluntary disclosures, managing Revenue audits, and calculating penalty and interest liabilities for clients in Ireland.
The penalty framework described on this site is not simple. The distinction between prompted and unprompted voluntary disclosures, the way interest compounds separately from the surcharge, and the mitigation provisions that can reduce a published penalty are matters that require professional understanding to describe accurately. Marina's review ensures that the content reflects the framework as it operates in practice, not only as it appears in a summary description of the rules.
Every factual statement on this site about penalty rates, interest rates, surcharge thresholds, and voluntary disclosure procedures is verified against primary sources:
The Revenue penalty framework does not change with every Budget, but specific rates, thresholds, and procedural requirements can be amended. Content on this site is reviewed when:
Given the high stakes of the subject matter — incorrect information about penalty rates could lead a reader to significantly underestimate their liability — we apply a higher standard of verification for this site than for our sites covering less consequential information.
The penalty calculator on this site is built on the published Revenue rules for surcharges, interest, and penalty rates. It is designed to produce an indicative estimate — not a precise calculation and not a Revenue determination. The calculator does not account for:
The editorial approach to the calculator is to make the estimation methodology transparent — so users understand what assumptions are built in and where the estimate might diverge from a real Revenue calculation — rather than presenting a figure without explaining its basis.
This site is owned by D'Emilia Accounting. We do not accept paid placements. D'Emilia Accounting offers professional services for Revenue compliance situations and we link to demiliaaccounting.ie. That is a genuine commercial interest which we disclose. The editorial content on this site is written to give readers an honest understanding of the penalty framework. We do not overstate the complexity of the subject to make professional help seem more necessary than it is; we also do not understate it in ways that might lead readers to underestimate a genuine Revenue exposure.
AI writing tools are used to assist drafting. All content is reviewed by the named authors. Penalty rates, interest rates, and descriptions of the voluntary disclosure framework are verified against Revenue's published Tax and Duty Manuals before publication. AI output is not used as a source for penalty figures or procedural rules.
Last reviewed: July 2026