The claim is mostly true regarding specific historical investigations, such as the major inquiry in Portugal where most reported clerical abuse claims could not be prosecuted because the crimes had lapsed under statutory time limits.
The majority of sex abuse claims made against Catholic priests have been archived and are considered to have lapsed.

Catholic Church Sexual Abuse Lawyers | Scandal & Settlements
Source: sokolovelaw.com
Key Evidence
Independent commission findings in Portugal showed that only a small fraction of historical abuse files resulted in formal judicial action because most cases had lapsed.
Survivor networks and legal analysts note that historical abuse cases frequently run into expired statutes of limitations due to the decades that pass before victims come forward.
Legal reforms in multiple jurisdictions have eliminated or extended time bars, allowing civil settlements and bankruptcy proceedings to provide accountability outside of lapsed criminal statutes.
What the Evidence Shows
Inquiries into historical clergy abuse, most notably the independent commission in Portugal, revealed that thousands of children were allegedly abused over several decades. However, because victims typically wait decades to come forward and because standard legal frameworks impose strict time limits, a vast majority of the submitted files forwarded to prosecutors were ultimately archived or dismissed due to expired statutes of limitations.eurel-info.cnrs.freurel-info.cnrs.frEurel-info ReportLapsed/Time-Barred Cases: Although the Independent Commission forwarded files containing actionable details to the Public Prosecutor’s Office (Portuguese justice system), only a fraction of the historical cases resulted in formal judicial action
theguardian.comtheguardian.comPortugal Catholic Clergy Abuse Nearly 5000 Children Since 1950 Inquiry FindsScale: In February 2023, the commission released its final report, validating hundreds of testimonies and estimating that at least 4,815 children had been abused by Catholic clergy and church personnel since 1950 Statute of Limitations: A...
While survivor advocacy groups and legal experts emphasize that time-barring prevents formal criminal prosecution for many historical allegations, the situation varies considerably across international jurisdictions.saunderslawyers.comsaunderslawyers.comHow Statutes of Limitation Affect Justice for Survivors of Clergy AbuseFor decades, civil and criminal statutes of limitations severely restricted accountability for clergy abuse Because public outcry highlighted that standard statutes of limitations protected institutions rather than victims, many... In countries where legal reforms have eliminated or extended statutes of limitations, civil litigation, settlements, and bankruptcy proceedings continue to provide avenues for accountability that are not entirely blocked by archiving or time bars.
propublica.orgpropublica.orgWe Assembled the Only Nationwide Database of Priests Deemed Credibly Accused of...In many countries (particularly the U.S., Australia, and parts of Europe), legal reforms, abolition of statutes of limitations, and public transparency reports (such as public lists of "credibly accused" priests+2 more
Therefore, stating that the majority of claims have been archived and considered lapsed accurately reflects findings in specific major contexts, but it does not uniformly apply to every jurisdiction where legal reforms have dismantled those barriers.whitelawpllc.comwhitelawpllc.comThe Statute of Limitations for Clergy AbuseThe statement—suggesting that a vast majority of clergy abuse claims are time-barred by the statute of limitations and consequently archived or dismissed—reflects a central systemic barrier historically faced by survivors of institutional...
snapnetwork.orgsnapnetwork.orgSex Abuse Claims Made Against Catholic Priests Have All Been Archived Majority...For example, following investigations by independent commissions into clerical abuse (such as high-profile reports in Portugal), media and legal updates noted that many submitted complaints were ultimately archived or dismissed because the...