What Percentage Is a Pass in the Leaving Cert?

The Leaving Certificate uses percentage bands to assign grades, and the thresholds trip up a lot of students — especially those studying independently or coming in as external candidates. A "pass" is not one universal number. It depends on which level you're sitting and what you need that grade for.

The Leaving Cert Grading Scale

Since the grading reform in 2017, the Leaving Certificate no longer uses letter grades like A1, B2, or C3. The system was replaced with a numeric grade scale that applies uniformly across Higher Level (H) and Ordinary Level (O) subjects, with the same percentage bands used for both.

Here is the complete scale:

For CAO planning, 40% or higher is the key threshold, corresponding to H6 at Higher Level or O6 at Ordinary Level. H7 is technically a passing Higher Level grade but earns zero CAO points; O7 and O8 are failing Ordinary Level grades, and H8 is failing at Higher Level.

A grade of H7 (30–39%) earns zero CAO points despite being technically a Higher Level pass. O7 (30–39%) and H8/O8 (under 30%) generate no points.

What Does a Pass Mean for CAO Points?

Passing an exam and generating useful CAO points are two different things. You need to understand both.

The CAO points scale assigns points to each grade as follows:

Higher Level:

• H1: 100 points
• H2: 88 points
• H3: 77 points
• H4: 66 points
• H5: 56 points
• H6: 46 points
• H7: 0 points
• H8: 0 points

Ordinary Level:

• O1: 56 points
• O2: 46 points
• O3: 37 points
• O4: 28 points
• O5: 20 points
• O6: 12 points
• O7: 0 points
• O8: 0 points

This means the lowest point-bearing grades, H6 and O6, earn 46 and 12 points respectively. For Irish, which is a compulsory subject for NUI matriculation, you need at minimum an O6 (40%) at Ordinary Level — or an exemption — to satisfy the language requirement.

There is also a 25-point bonus for achieving H6 or higher in Higher Level Mathematics. This bonus applies equally if you are sitting the Leaving Cert as an external candidate.

Why This Matters for Home-Educated Students

If your child is planning to sit the Leaving Certificate as an external (private) candidate, understanding the grading thresholds is necessary but not sufficient on its own.

The bigger structural issue is the ongoing Senior Cycle reform. The Department of Education is progressively shifting 40% of the final grade across major subjects — including Biology, Chemistry, and Business — to Classroom-Based Assessments (CBAs) and project work completed in school. These components must be authenticated by a registered teacher and school principal. External candidates sitting the exam independently have no mechanism to get that authentication.

This means a home-educated student attempting the Leaving Cert externally from 2026 onwards may be unable to earn some or all of the coursework marks in affected subjects unless a host school can authenticate them. The resulting ceiling depends on the subject specification and the assessment arrangement, but the points disadvantage can be substantial even where terminal-exam performance is strong.

That is not a scoring problem. It is a systemic disqualification.

If your child intends to apply to an Irish university via the CAO and the Leaving Cert external route is your working plan, this reform deserves serious attention before it is too late to pivot.

If you are mapping out university entry options for a home-educated student in Ireland, the Ireland University Admissions Framework covers this issue directly — including which subjects are affected by the CBAs, which pathways avoid this problem entirely (QQI Level 5, A-Levels, IB), and how each one converts to CAO points.

What About Minimum Entry Requirements?

Passing the Leaving Cert and meeting minimum entry requirements for a Level 8 degree are separate bars.

Most Irish universities require applicants to present results in at least six recognised subjects with a minimum of two at Higher Level. The standard minimum entry requirement set by many institutions is:

• Two Higher Level subjects at H5 (50%+)
• Four other recognised subjects at O6 / H7 or above

Subject-specific courses add their own layer of requirements. Medicine requires the Health Professions Admissions Test (HPAT) on top of meeting the CAO points threshold. Some STEM degrees require a Higher Level science or maths at a specified minimum grade.

The Pass Mark for Irish as an NUI Requirement

If your child plans to apply to any university within the National University of Ireland network — UCD, UCC, University of Galway, or Maynooth — they must satisfy the Irish language matriculation requirement. The minimum acceptable grade is O6 (40% at Ordinary Level) or H6 (40% at Higher Level).

Home-educated students who have never attended an Irish-medium or mainstream school face a particular administrative obstacle here. The standard NUI exemption form requires a school principal's signature, which is structurally impossible to obtain outside the school system. Families must apply directly to the NUI Exemptions Office using Tusla registration history, birth certificates, or psychological assessment reports. That process is documented, but it is not widely known.

A Practical Frame for Planning

Knowing the pass percentage (40%) tells you the floor. Planning for university entry requires thinking about the ceiling — the points a student is likely to generate, the CAO threshold for their target courses, and whether the Leaving Cert is still the most viable route given the assessment reforms.

For many home-educated students in Ireland, the more strategic path is now QQI Level 5, A-Levels through independent exam centres, or the International Baccalaureate. Each has a direct, well-established conversion to CAO points. None of them requires a school to authenticate your work.

If you are still in the planning phase, the Ireland University Admissions Framework sets out all the viable pathways side by side — including what each pathway costs, what it generates in CAO points, and which one suits different learning styles and target courses.

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