Law School Addendum: When and How to Write One

A law school addendum is a short, factual note that explains a specific weakness or a required disclosure in your application, such as a low GPA, a low or repeated LSAT score, a score jump, or a character and fitness issue. Write a law school addendum only when a real anomaly needs a brief, non-defensive explanation.

By Ali Unar, Georgetown Law, Founder of Lovare Institut. Ali Unar is a Georgetown Law student and the founder of Lovare Institut, an admissions and LSAT-prep practice built on primary-source law school data and more than 5,000 real application materials. Verified August 2026. The LSAT percentile figures on this page come from LSAC's official percentile chart, cited in full in the Sources section.

This guide covers the two kinds of admissions addenda you are most likely to need: the numbers addendum, which explains a low GPA, a low LSAT score, multiple LSAT scores, or a score jump, and the character and fitness addendum, which discloses an academic-discipline, criminal, or similar matter. The through-line for every law school addendum is the same: keep it short, keep it factual, and keep it non-defensive.

What is a law school addendum?

A law school addendum is a brief supplemental document that gives an admissions committee context for something in your file that a reader would otherwise question. A law school addendum is not a second personal statement and not a place for excuses. It states a fact, gives the minimum necessary context, and stops.

Addenda exist because an application is a set of data points, and some data points invite an obvious question. A GPA well below a school's range, several LSAT attempts, a single low score sitting next to an otherwise strong record, a gap in schooling, or a "yes" answer to a character and fitness question all raise a question in a reader's mind. A law school addendum answers that question before it becomes a reason to doubt the rest of the file. The goal is to remove a distraction so the committee can evaluate your actual candidacy, not to argue that a weakness is really a strength.

The defining feature of a good law school addendum is restraint. Because the document exists only to supply context, length works against you: the longer the addendum, the more it reads as defensiveness or special pleading. A strong addendum is often three to six sentences. It names the issue plainly, provides verifiable context, notes what changed or what you did in response, and ends. Everything beyond that starts to sound like an excuse, which is the one tone an addendum must avoid.

When should you write a law school addendum?

You should write a law school addendum when there is a genuine, explainable anomaly in your file or a disclosure a school requires. Write one for a low GPA with a real external cause, a large LSAT score gap, or a character and fitness matter. Do not write a law school addendum to re-argue a number that speaks for itself.

The decision comes down to two questions. First, is there a real anomaly, meaning a number or fact that a careful reader will notice and wonder about? Second, do you have honest, verifiable context that genuinely explains it? If the answer to both is yes, an addendum helps. If a number is simply lower than you would like but has no real explanation, an addendum usually hurts, because inventing a reason reads as making excuses. A law school addendum is a tool for context, not for spin.

Required disclosures are the one case where writing is not optional. When an application asks a character and fitness question and the honest answer triggers a disclosure, you must address it, and a short addendum is the right vehicle. The same is true when a school specifically invites an explanation for gaps or anomalies. Outside those required cases, apply the restraint test: if the addendum would not change how a reasonable reader interprets your file, leave it out. A clean file with no unnecessary addenda is stronger than a file padded with defensive notes.

How do you write an LSAT addendum?

You write an LSAT addendum by stating the facts around the score plainly and letting the numbers carry the argument. An LSAT addendum is most useful for a large gap between multiple scores, a documented testing disruption, or a score that sits far below your demonstrated ability. Use percentile context to show the size of a jump, and keep the LSAT addendum to a few sentences.

Percentiles help you decide whether an LSAT addendum is even warranted and how to frame a change. According to LSAC's official percentile chart covering the 2023-24 through 2025-26 testing years, on the LSAT's 120 to 180 scale a 170 places you above 94.48 percent of test takers, a 160 above 71.06 percent, and a 155 above 54.03 percent. That context matters: a single strong score rarely needs an addendum, while a jump from a 155 to a 165 moves you from roughly the 54th percentile to above 85.17 percent of test takers, a change large enough that a brief, factual note explaining what changed can help a reader trust the higher score.

LSAT scorePercentile (percent who scored below)18099.8517598.7217498.2417094.4816585.1716071.0615554.0315036.5614521.4814011.01200.0

Source: LSAC official percentile chart, covering the 2023-24 through 2025-26 testing years. The full URL appears in the Sources section.

The content of an LSAT addendum depends on the situation. For a large gap between scores, state what changed between attempts, such as substantially more preparation, a resolved illness, or a technical problem during an earlier administration, and note that the later score reflects your true ability. For a documented disruption during the test, describe it factually and briefly. For a single low score beside a strong academic record, a one or two sentence note is often enough. In every case, an LSAT addendum should avoid speculation and avoid blaming the exam. State the fact, provide any verifiable context, and let the higher number and the percentile context speak.

How do you explain a low GPA to law schools?

You explain a low GPA to law schools with a short GPA addendum that gives honest, verifiable context and, where it exists, points to an upward trend. A GPA addendum should identify a specific external cause, not offer a general apology. If a low GPA simply reflects the work you did, a GPA addendum usually adds nothing and is better left out.

The strongest GPA addenda share a structure. They name the circumstance concisely, such as a documented medical issue, a family responsibility, a period of financial hardship requiring heavy work hours, or a difficult transition, and they connect that circumstance to the specific terms it affected. They then point to what happened afterward. An upward grade trend is the most persuasive element a GPA addendum can contain, because it shows the low period was situational rather than a ceiling on your ability. A GPA addendum that says, in effect, here is what happened, here is when it happened, and here is how my later record looks, does real work for a file.

Two cautions apply to every GPA addendum. First, do not blame professors, courses, or the grading itself, because that reads as a failure to take responsibility, which is exactly the wrong signal for a future lawyer. Second, do not stretch a minor dip into a dramatic narrative. If the explanation is thin, the honest move is to let a strong LSAT score and an upward trend speak on their own rather than drawing attention to the weakness with an unconvincing GPA addendum. Context earns credibility; excuses spend it.

What is a character and fitness addendum?

A character and fitness addendum is a disclosure that explains an academic-discipline, criminal, or conduct matter that an application's character and fitness questions ask about. Because bar admission later requires a character and fitness review, a law school addendum on these questions must be complete, factual, and consistent with what you will eventually report to a bar.

Law school applications ask direct questions about matters such as academic dishonesty findings, disciplinary actions, arrests or convictions, and similar conduct, and the standard for answering is full, accurate disclosure. A character and fitness addendum should state what happened, when it happened, how it was resolved, and what you learned or changed, in plain and unemotional language. The committee is not primarily judging the underlying incident; it is judging candor and judgment. An applicant who discloses fully and takes responsibility is in a far better position than one who minimizes or omits, because omissions discovered later are treated as dishonesty.

Consistency across your record is the point most applicants underestimate. Whatever you disclose in a character and fitness addendum will need to align with what you report during bar admission, so accuracy now protects you later. If you are unsure whether something must be disclosed, the safe default is to disclose it, and where the stakes are high it is reasonable to seek guidance from a pre-law advisor or an attorney. A character and fitness addendum is not the place to argue that a rule was unfair; it is the place to show honesty, accountability, and resolution.

How long should a law school addendum be?

A law school addendum should be short, usually a single short paragraph of roughly three to six sentences. The length of an addendum signals its tone: a brief note reads as factual context, while a long one reads as defensiveness. Say what happened, give the necessary context, note what changed, and stop.

The discipline of brevity is the hardest part of writing a law school addendum, because the instinct when explaining a weakness is to over-explain. Resist it. A GPA addendum, an LSAT addendum, and a character and fitness addendum each work best when they respect the reader's time and trust the facts. If your draft runs to most of a page, it has almost certainly drifted from context into argument, and it needs to be cut back. The exception is a serious character and fitness matter, which may reasonably require a few more sentences to disclose completely, but even then the standard is completeness, not length for its own sake.

Formatting follows the same logic. A law school addendum is typically a separate, clearly labeled document, so a reader can see at a glance which issue it addresses. A short heading that names the topic, such as an LSAT addendum or a GPA addendum, orients the committee immediately. Because each addendum targets one issue, use one document per issue rather than combining several unrelated explanations into a single sprawling note.

Should you write an addendum for one bad semester?

Yes, you should usually write a short addendum for one bad semester when a clear external cause explains the dip and your record recovered afterward. One anomalous semester inside an otherwise strong transcript is exactly the situation a law school addendum handles well, because the surrounding grades prove the semester was situational rather than typical.

The reason a single bad semester is a good candidate for an addendum is that it produces an obvious, answerable question. A reader looking at strong grades interrupted by one weak term will wonder what happened, and a two or three sentence note that identifies a documented cause, such as an illness, a loss in the family, or an unavoidable disruption, resolves it cleanly. The recovery in later semesters does most of the persuading, so the addendum can be very short: name the term, name the cause, and let the rest of the transcript speak.

The judgment call is whether a real, statable cause exists. If the weak semester came from a genuine external circumstance, a brief law school addendum helps. If the weak semester simply happened, without a specific cause you can point to honestly, an addendum that reaches for an explanation will sound like an excuse and can do more harm than the grades themselves. In that case, the better strategy is to let an upward trend and a strong LSAT score carry the file, rather than drawing a reader's eye to the weak term with an unconvincing note.

What tone should a law school addendum take?

A law school addendum should take a factual, accountable, and non-defensive tone. The addendum states circumstances without blaming others, without dramatizing, and without asking for sympathy. A calm, matter-of-fact voice signals the judgment and maturity that law schools and, later, bar examiners are looking for.

Tone is what separates an addendum that helps from one that hurts, even when the facts are identical. A GPA addendum that says a specific documented illness affected a specific semester reads as responsible. The same facts wrapped in complaints about unfair professors or a hard major reads as someone who does not take ownership. Because the legal profession runs on credibility and accountability, admissions readers treat the tone of a law school addendum as a small but real signal of professional temperament. Write as though a skeptical but fair reader is on the other side, because one is.

What are common law school addendum mistakes?

The common law school addendum mistakes are over-explaining, blaming others, writing an addendum when none is warranted, hiding or minimizing a character and fitness issue, and letting the addendum turn emotional. Each mistake undercuts the one thing an addendum is supposed to project: honest, accountable judgment.

Over-explaining is the most frequent error. A law school addendum that runs long converts context into argument and makes a small issue look larger than it is. Blaming others, whether professors, testing conditions, or circumstances entirely within your control, is the second error, and it is the fastest way to fail the accountability test. The third error is writing an unnecessary addendum: attaching a defensive note to a number that needs no explanation invites scrutiny you did not have to invite.

The two most serious errors involve character and fitness. Minimizing or omitting a required disclosure is the gravest, because a matter discovered later, whether by the school or by a bar examiner, is treated as dishonesty and is far more damaging than the original conduct. The final error is emotional tone: an addendum that pleads or dramatizes undercuts its own credibility. A short, factual, accountable law school addendum avoids all of these, which is why restraint is the governing rule.

Where do you submit a law school addendum?

You submit a law school addendum as a separate, labeled document within the application, usually in the same place you upload the personal statement and optional essays. Each law school addendum should be its own file, clearly titled for the issue it addresses, so a reader can immediately see whether it is a GPA addendum, an LSAT addendum, or a character and fitness disclosure.

Because application platforms and each school's instructions differ, the practical rule is to follow the specific school's directions for supplemental documents and to make each addendum easy to identify. A clear title and a single-issue focus do two things at once: they help the committee route the document, and they reinforce the impression of an organized, candid applicant. When a school's character and fitness section provides its own explanation field, use that field for the disclosure rather than burying it elsewhere, and keep the content consistent everywhere it appears.

How can you tell whether your addendum helps or hurts?

You can tell whether a law school addendum helps or hurts by asking three questions: does it answer a real question a reader would have, is every sentence factual rather than defensive, and is it as short as the facts allow. If a draft addendum fails any of the three, it is more likely to hurt your file than to help it.

Read the addendum as a skeptical admissions reader would. If the note explains an anomaly the reader would genuinely wonder about, supplies verifiable context, and stops, it is doing its job. If it argues, blames, pleads, or explains something no one would have questioned, it is working against you. A second reader who does not know your history is invaluable here, because they will notice immediately whether a law school addendum reads as calm context or as an excuse.

Frequently asked questions about the law school addendum

What is a law school addendum in one sentence?

A law school addendum is a short, factual supplement that explains an anomaly or required disclosure in your application, such as a low GPA, a low or repeated LSAT score, a score jump, or a character and fitness matter. A law school addendum gives a reader context in a few sentences and avoids excuses, argument, or emotional appeals.

When should you write a law school addendum?

Write a law school addendum when there is a real, explainable anomaly in your file or a disclosure a school requires. A low GPA with an external cause, a large LSAT score gap, a documented testing disruption, or a character and fitness matter each justify one. If a number simply speaks for itself with no honest explanation, a law school addendum usually hurts more than it helps.

How do you write an LSAT addendum?

Write an LSAT addendum by stating the facts around the score briefly and letting the numbers carry the point. It is most useful for a large gap between multiple scores, a documented disruption, or a score far below your ability. According to LSAC's official percentile chart, a jump from a 155 to a 165 moves you from the 54th percentile to above 85 percent of test takers, a change worth a short factual note.

How do you explain a low GPA to law schools?

Explain a low GPA with a short GPA addendum that names a specific, verifiable external cause and points to any upward grade trend. A GPA addendum should connect the circumstance to the terms it affected and then stop. Do not blame professors or courses, and do not dramatize a minor dip, because context earns credibility while excuses spend it.

How long should a law school addendum be?

A law school addendum should be short, usually a single paragraph of about three to six sentences. Length signals tone, so a brief note reads as factual context while a long one reads as defensiveness. The main exception is a serious character and fitness disclosure, which may need a few more sentences to be complete, but even then brevity is the goal.

Should you write an addendum for one bad semester?

Usually yes, if a clear external cause explains the semester and your later grades recovered. A single weak term in a strong transcript is exactly what a short law school addendum handles well, because the surrounding grades prove it was situational. If no honest, statable cause exists, let an upward trend and a strong LSAT score speak instead.

What is a character and fitness addendum?

A character and fitness addendum discloses an academic-discipline, criminal, or conduct matter that an application asks about. Because bar admission later requires a character and fitness review, this kind of law school addendum must be complete, factual, and consistent with what you will report to a bar. State what happened, when, how it resolved, and what changed, in plain language.

Does an LSAT addendum help with multiple scores?

An LSAT addendum can help when multiple scores show a large gap, because it explains why the later score is the truer measure. According to LSAC's official percentile chart, the difference between a 155 and a 165 is the difference between the 54th and the 85th percentile, so a brief, factual note about what changed, such as far more preparation or a resolved disruption, can help a reader trust the higher score.

Will a law school addendum hurt my application?

A law school addendum hurts your application when it explains something no one questioned, blames others, or runs long and defensive. It helps when it answers a genuine question with verifiable context and then stops. The test is simple: if the addendum would not change how a fair reader interprets your file, leaving it out produces a cleaner, stronger application.

Do you need an addendum if your GPA matches the school's median?

No, you do not need a GPA addendum when your GPA sits at or above a school's range, because there is no anomaly to explain. A law school addendum is for numbers or facts that raise an obvious question. Attaching a defensive note to a competitive GPA only invites scrutiny you did not need to invite, so a clean file is the better choice.

Can you combine several issues into one addendum?

It is better to write one law school addendum per issue rather than combining unrelated explanations into a single note. A separate, clearly labeled document for each issue, such as a GPA addendum and a distinct LSAT addendum, lets a reader identify and evaluate each one quickly. Combining issues tends to lengthen the writing and blur the focus that makes an addendum effective.

Should you disclose a character and fitness issue even if unsure?

Yes, when in doubt, disclose. A character and fitness matter discovered later, by the school or by a bar examiner, is treated as dishonesty and is far more damaging than the underlying conduct. A complete, factual law school addendum protects you, and because these disclosures must align with your future bar application, full candor now is the safest and most professional choice.

Sources

The LSAT percentile figures on this page come from a primary source, listed here so readers can verify each one directly.

LSAC official LSAT percentile chart, covering the 2023-24 through 2025-26 testing years: https://www.lsac.org/data-research/data/lsat-percentiles

A strong addendum supports the rest of a strong file, including the personal statement it sits beside, so the fastest way to check whether your addendum reads as calm context or as an excuse is to have it read alongside your main essay by someone who will be honest. Get a free teardown of your personal statement.