diff --git a/FND/Accounting/AccountingEquity.rdf b/FND/Accounting/AccountingEquity.rdf
index a63579b6c..a37110231 100644
--- a/FND/Accounting/AccountingEquity.rdf
+++ b/FND/Accounting/AccountingEquity.rdf
@@ -48,7 +48,7 @@
 		<owl:imports rdf:resource="https://www.omg.org/spec/Commons/AnnotationVocabulary/"/>
 		<owl:imports rdf:resource="https://www.omg.org/spec/Commons/ContextualDesignators/"/>
 		<owl:imports rdf:resource="https://www.omg.org/spec/Commons/DatesAndTimes/"/>
-		<owl:versionIRI rdf:resource="https://spec.edmcouncil.org/fibo/ontology/FND/20230301/Accounting/AccountingEquity/"/>
+		<owl:versionIRI rdf:resource="https://spec.edmcouncil.org/fibo/ontology/FND/20230601/Accounting/AccountingEquity/"/>
 		<skos:changeNote>The http://www.omg.org/spec/FIBO/Foundations/20130601/Accounting/AccountingEquity.owl version of the ontology was revised in advance of the September 2013 New Brunswick, NJ meeting, as follows:
    (1) to use slash style URI/IRIss (also called 303 URIs, vs. hash style) as required to support server side processing 
    (2) to use version-independent IRIs for all definitions internally as opposed to version-specific IRIs
@@ -65,6 +65,7 @@
 		<skos:changeNote>The https://spec.edmcouncil.org/fibo/ontology/FND/20211201/Accounting/AccountingEquity.rdf version of this ontology was modified to make income a subclass of monetary amount and eliminate the oblique restriction on monetary amount to simplify its representation.</skos:changeNote>
 		<skos:changeNote>The https://spec.edmcouncil.org/fibo/ontology/FND/20220301/Accounting/AccountingEquity.rdf version of this ontology was modified to eliminate the deprecated &apos;represents an interest in&apos; property.</skos:changeNote>
 		<skos:changeNote>The https://spec.edmcouncil.org/fibo/ontology/FND/20220401/Accounting/AccountingEquity.rdf version of this ontology was modified to use the Commons Ontology Library (Commons) Annotation Vocabulary rather than the OMG&apos;s Specification Metadata vocabulary.</skos:changeNote>
+		<skos:changeNote>The https://spec.edmcouncil.org/fibo/ontology/FND/20230101/Accounting/AccountingEquity.rdf version of this ontology was modified to add a definition for EBITDA.</skos:changeNote>
 		<skos:changeNote>The https://spec.edmcouncil.org/fibo/ontology/FND/20230101/Accounting/AccountingEquity.rdf version of this ontology was modified to use the Commons Ontology Library (Commons) rather than the OMG&apos;s Languages, Countries and Codes (LCC), eliminating redundancies in FIBO as appropriate.</skos:changeNote>
 		<fibo-fnd-utl-av:hasMaturityLevel rdf:resource="&fibo-fnd-utl-av;Release"/>
 		<cmns-av:copyright>Copyright (c) 2013-2023 EDM Council, Inc.</cmns-av:copyright>
@@ -77,6 +78,14 @@
 		<skos:definition>capital contributed in excess of the par value (stated value) of the ownership interest issued</skos:definition>
 	</owl:Class>
 	
+	<owl:Class rdf:about="&fibo-fnd-acc-aeq;EarningsBeforeInterestTaxesDepreciationAmortization">
+		<rdfs:subClassOf rdf:resource="&fibo-fnd-acc-aeq;OwnersEquity"/>
+		<rdfs:label>retained earnings before interest, taxes, depreciation and amortization</rdfs:label>
+		<skos:definition>measure of profitability to net income prior to payment of interest, taxes, depreciation and amortization</skos:definition>
+		<cmns-av:abbreviation>EBITDA</cmns-av:abbreviation>
+		<cmns-av:explanatoryNote>By stripping out the non-cash depreciation and amortization expense as well as taxes and debt costs dependent on the capital structure, EBITDA attempts to represent cash profit generated by the company&apos;s operations. EBITDA is not a metric recognized under Generally Accepted Accounting Principles (GAAP). Some public companies report EBITDA in their quarterly results along with adjusted EBITDA figures typically excluding additional costs, such as stock-based compensation.</cmns-av:explanatoryNote>
+	</owl:Class>
+	
 	<owl:Class rdf:about="&fibo-fnd-acc-aeq;FinancialAsset">
 		<rdfs:subClassOf rdf:resource="&fibo-fnd-oac-own;TangibleAsset"/>
 		<rdfs:label>financial asset</rdfs:label>