Legal Dictionary

ipso jure

Legal Definition of ipso jure

Related terms

Definition of ipso jure


ipso jure

  1. (law) by the law itself

    * 1833, Ausführliche Erläuterung der Pandecten nach Hellfeld: ein Commentar, volume 37‎, page 323:
    Schon nach altem Recht sey nicht eigentliche und ipso jure wirkende Nullität durch Präterition eines Haussohnes begründet, sondern nur die Vefugniß, das Testament anzufechten.

    * 1876, Archivio giuridico‎, page 387:
    Il principio dela compensazione ipso jure, preso nel senso materiale giuridico, se non è assistito dalla tradizione romana, non è poi neppure fondato nella ragione giuridica.

    * 1884, Georges Marmod, Droit romain:- Étude sur la condition juridique du prodigue, page 14:
    Le prodigue était-il interdit ipso jure par la loi des XII Tables.

    * 1902, Ernő Wittmann, Nemzetközi és idöközi magánjog‎, page 259:
    Weber szerint ugyanis különbséget kell tenni a szerződésnek ipso jure és ex officio judicis hatásai közt.

    * 1915, Sweden Riksdagen, Bihang till Riksdagens protokoll vid lagtima Riksdagen i Stockholm, page 237:
    Därtill komma de här icke medräknade fall, då förlusten inträtt ipso jure.

    * 1978, United Nations Conference on Succession of States, volume 2‎, page 56:
    Mr. G-R-G (Hungary) said that in drafting article 33, the International Law Commission had adopted the principle of ipso jure continuity of all treaties

    * 1997, Enrique Silva Segura, acciones, actos y contratos sobre cuota, page 77:
    Excepciones a la división ipso jure de los créditos.

    * 2004, A Stege, De CAO en het regelingsbereik van de sociale partners, page 141:
    Gelijk nu aan niet-inachtneming van de wettelijke bepalingen ipso jure nietigheid is verbonden

Further reading

Ipso jure is a Latin phrase, directly translated as by operation of law. It is used as an adverb.


The phrase is used to describe legal consequences that occur by the act of the law itself. For example, if property is held in a tenancy by the entirety by a husband and wife, who then get divorced, the property is converted ipso jure (i.e. by the law itself) into another form of tenancy, usually a tenancy in common, at the very instant the marriage is dissolved. Likewise, contracts that establish partnerships sometimes provide that the partnership is ipso jure dissolved if one partner attempts to sell his or her interest in the partnership. In all of these situations, when one legally significant fact occurs, other relationships are automatically changed by the law.


  1. Wiktionary. Published under the Creative Commons Attribution/Share-Alike License.


1.     lex fori
2.     landed property
3.     lex situs
4.     respondent
5.     default judgment
6.     tort law
7.     living will
8.     lex causae
9.     law
10.     salacious