
Irish law and English law share a close legal heritage due to Ireland's history as part of the United Kingdom. While Irish law has evolved independently since Irish independence in 1921, the two systems remain closely aligned. This is true of the substance and style of the law itself, as well as the court systems and approaches to dispute resolution. The basic principles of contract law, tort law, agency law, property law, criminal law, and merchant law are very similar in both jurisdictions. However, there are some differences in statutory aspects, and Irish law also incorporates elements of pre-existing Irish customary law.
| Characteristics | Values |
|---|---|
| History | The Irish legal system has a long history, with the oldest Act currently in force in Ireland being the Fairs Act 1204. The Brehon Laws, an early Irish legal system, were wiped out during the Cromwellian conquest of Ireland, which ended in 1653. The Irish Constitution, enacted by a plebiscite on 1 July 1937, is the cornerstone of the Irish legal system. |
| Influence | Irish law was influenced by English common law, which supplanted Irish customary law. Ireland was part of the United Kingdom until its independence in 1921/1922, and during this time, the UK parliament often passed legislation specifically for Ireland. |
| Similarities | Irish and English law share many similarities due to their shared heritage. The basic principles of contract law, tort law, agency law, property law, criminal law, and merchant law are very similar. Specific areas of law, such as company law, partnership law, bills of exchange law, and intellectual property law, are also extremely similar or identical. |
| Differences | There are some differences in statutory aspects between Irish and English law. Ireland has its own courts and legal system, and legislation passed by pre-1801 parliaments continued to apply until amended. |
| Court Structure | Both Ireland and the United Kingdom have a High Court, Court of Appeal, and Supreme Court. |
| Arbitration | Ireland is an emerging centre for international arbitration, and arbitration awards are enforced in Ireland regardless of the country in which they were made, provided that country is a signatory to the New York Convention. |
| Amendment Process | The Irish Constitution can only be amended through a referendum, where a simple majority of voters is sufficient for a proposal to pass. |
| Regulatory Landscape | Ireland has a strong regulatory landscape with reputable bodies such as the Central Bank of Ireland, the Health Products Regulatory Authority (HPRA), and the Data Protection Commission. |
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What You'll Learn

Irish and English law have a shared history
The influence of English law on Irish law can be traced back to the 12th century when King Henry II of England invaded Ireland and established a feudal system. This marked the beginning of a long period of English influence on Irish legal development. The Irish legal system adopted many aspects of English common law, including the concept of precedent, the role of judges, and the structure of courts.
Over time, Irish law began to develop its own unique features and distinctions. While it retained the basic framework of the English common law system, it also incorporated elements of civil law and canon law. The influence of these other legal traditions can be seen in areas such as property law and constitutional law, where Irish law has taken a different path to that of England.
Despite these differences, the shared history and common legal heritage of Ireland and England have resulted in many similarities between the two legal systems. Both countries have a strong tradition of common law, which means that judicial precedent plays a crucial role in shaping the law. The structure of the courts in both countries is also similar, with a hierarchy of courts headed by a supreme court.
In addition, the legal professions in Ireland and England have historically been closely linked. Many Irish lawyers are qualified to practice in England and Wales, and vice versa. This has facilitated a cross-flow of legal ideas and practices between the two jurisdictions. However, in recent years, the two legal systems have begun to diverge in certain areas, with Ireland developing its own unique body of law and legal practices.
In conclusion, while Irish and English law share a long and intertwined history, they have also developed their own distinct features and characteristics. The influence of English law on Irish legal development is undeniable, but Ireland has also been influenced by other legal traditions and has shaped its own unique legal system. As a result, while there are many similarities between the two, Irish law stands as a distinct and independent legal system.
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Irish law is influenced by the Irish Constitution
Irish law and English law have many similarities due to their shared heritage. Ireland was the first extension of England's common law legal system outside England. However, Irish law has developed independently since Irish independence in 1921. The Irish Constitution, enacted in 1937, is the cornerstone of the Irish legal system and has been amended several times since.
The Irish Constitution is the fundamental law of Ireland, guaranteeing certain fundamental rights, a popularly elected non-executive president, a bicameral parliament, a separation of powers, and judicial review. It is held to be the source of power exercised by the legislative, judicial, and executive branches of the Irish government. The Irish Supreme Court and High Court exercise judicial review over all legislation and may strike down laws deemed inconsistent with the Constitution.
The Irish Constitution recognises the Irish language as the national language and the first official language, with English as the second official language. The Constitution is enrolled in both languages, with the Irish language version taking precedence in case of conflict. The Constitution also introduced some Irish-language terms into English, such as Taoiseach and Tánaiste.
The Irish Constitution allows for the delegation of law-making powers by the Oireachtas, the bicameral National Parliament, to other bodies, as long as the delegated legislation does not exceed the "principles and policies" set out in the relevant authorising statute. All instances of delegated legislation in Ireland are known as statutory instruments.
The Irish Constitution can only be amended through a referendum, with a simple majority of voters required for a proposal to be passed. Amendments may be proposed to address new social issues, outmoded provisions, or to alter interpretations of the court. For example, the Irish public held a referendum in 2018 to repeal and replace the previous Article 40.3.3°, which prohibited abortion.
In summary, while Irish law and English law share similarities due to their historical connection, Irish law has evolved independently, with the Irish Constitution serving as the foundation of the legal system and influencing the legislative, judicial, and executive branches of the Irish government.
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Ireland's court structure mirrors the UK's
Ireland's legal system has a shared history with the UK's, which results from the fact that Ireland was part of the UK until Irish independence in 1921. This shared history has resulted in the two countries having similar court structures.
The Irish legal system is conceptually similar to the English/Anglo-Saxon common-law system. Ireland's court system is hierarchical, with five distinct types of courts: the District Court, the Circuit Court, the High Court, the Court of Appeal, and the Supreme Court. The District Court is the lowest court in the hierarchy and deals with minor civil and criminal matters, such as parking fines and traffic offences. The Circuit Court deals with more serious civil and criminal matters, such as divorce, judicial separation, and serious assault. The High Court, based in Dublin, deals with the most serious civil and criminal matters, such as murder and rape, as well as appeals from the lower courts. The High Court also includes a Commercial Court division that deals with business disputes. When the High Court sits as a criminal court, it is called the Central Criminal Court and sits with a jury. The Court of Appeal hears appeals from the High Court in civil and criminal cases and can give rulings on questions of law raised in the lower courts. The Supreme Court is the highest court in Ireland and is the final court of appeal. It hears appeals from the Court of Appeal and the High Court in limited circumstances set out in the Constitution. The Supreme Court also has the power to review all legislation and may strike down laws that are inconsistent with the Constitution.
While the Irish court structure mirrors the UK's, there are some differences in the specific divisions and roles of the courts. For example, Ireland has a Family Court division within the District, Circuit, and High Courts that deals with family law matters. Additionally, Ireland has a Special Criminal Court that deals with criminal charges involving terrorist organisations and organised drug activities, which operates alongside the other courts.
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Irish law is an attractive option for international businesses
Secondly, Ireland is an English-speaking jurisdiction, making it a natural choice for international businesses operating in the Western world, where English is the predominant language of business. This linguistic advantage streamlines communication and reduces potential language barriers in cross-border disputes.
Thirdly, the Irish legal system shares a common-law heritage with English law, resulting in significant similarities in substance and style. This conceptual familiarity is advantageous for lawyers from common-law jurisdictions, as they can navigate the Irish legal system with greater ease and predictability. The Irish courts' tendency to consider judgments from higher English courts further enhances the alignment between the two legal systems.
Additionally, Ireland's membership in the EU/EEA post-Brexit makes it the only fully common law jurisdiction within that economic bloc. This unique position allows international businesses, particularly those based in the EU/EEA, to continue operating within a familiar common law framework while benefiting from access to the EU market.
Furthermore, the Irish courts have demonstrated their adaptability by successfully transitioning from physical to virtual courtrooms. This evolution has equipped them with the capability to hear international disputes remotely, enhancing their accessibility and attractiveness for international businesses seeking convenient and efficient dispute resolution mechanisms.
Lastly, Ireland offers a pro-business environment with a well-developed services and manufacturing sector. The country's financial sector includes over 430 institutions, providing financial services to major economies worldwide. This robust financial infrastructure, coupled with Ireland's commitment to combating economic and white-collar crime, contributes to a stable and reliable business climate for international investors.
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Irish and English solicitors can requalify in each other's jurisdictions
Irish and English law share a common root, as Ireland was historically part of the UK until Irish independence in 1921. The Irish legal system is based on the English/Anglo Saxon common-law system, which was gradually introduced to Ireland as English (and later British) influence spread across the island.
The Irish Constitution, enacted in 1937, is the cornerstone of the Irish legal system. It carried over all laws that had been in force in the Irish Free State, provided they did not conflict with the new constitution. This means that while the Irish state has existed for over a century, its statute book stretches back over 800 years.
Due to this shared heritage, Irish and English law remain very similar in substance and style, as well as in their court systems and approaches to dispute resolution. This similarity allows Irish and English solicitors to requalify in each other's jurisdictions.
For Irish solicitors seeking to requalify in England, the Solicitors Regulation Authority (SRA) has granted a full exemption from the Solicitors Qualifying Examination (SQE). Irish solicitors can apply for admission with the SRA directly after completing a pre-screening process. The SQE replaced the Qualified Lawyers Transfer Scheme (QLTS) in September 2021 and is open to qualified lawyers from all jurisdictions.
For English solicitors seeking to requalify in Ireland, the process is less straightforward. Following the Brexit transition period, the Irish Law Society announced that it would no longer issue practising certificates to those based outside the Republic of Ireland. This meant that English solicitors could no longer requalify in Ireland to retain their EU professional privilege. However, in early 2021, the Irish government introduced a statutory instrument enabling the Irish Law Society to reinstate direct admission of English solicitors, subject to reciprocity. This announcement re-opened the door for English solicitors wishing to requalify in Ireland, although the specific requirements and processes may vary.
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Frequently asked questions
Irish law is based on the Constitution of Ireland, which came into force on 29 December 1937. It is the cornerstone of the Irish legal system and the source of power for the legislative, judicial, and executive branches of government. English law does not have an equivalent written constitution.
Yes, the Irish and English legal systems are very similar due to their shared heritage. Ireland inherited the English/Anglo-Saxon common-law system and was influenced by English common law, which supplanted Irish customary law. The two systems remain closely aligned, especially in areas such as contract law, corporate law, and business law.
While there are some differences in statutory aspects, Irish and English law are quite similar in commercial practice. Precedents and forms of agreement, negotiation arrangements, and commercial law practices in the Republic of Ireland are largely based on those in the United Kingdom.
Post-Brexit, Ireland is now the only fully common-law jurisdiction in the EU/EEA. Despite the UK's departure from the EU, it is expected that the alignment between Irish and English law will continue, especially regarding legislative initiatives.
Ireland offers a stable and attractive business environment with a deep pool of legal expertise. Transitioning to Irish law allows international businesses to operate within the EU framework while retaining the benefits of a high-calibre judiciary, familiarity with precedent-based outcomes, and respect for freedom of contract. Arbitration is also increasingly popular in Ireland, providing a stable method of dispute resolution unaffected by Brexit.






























