How Legacy Admissions Work at T20 Schools

Legacy status still carries a meaningful admissions advantage at most private T20 universities, but only at the school your parent attended. Admissions offices often describe it as a tiebreaker between equally qualified applicants.

Data from the Harvard admissions trial and from economists who studied Ivy League admissions shows a larger effect. At a parent's own school, legacy applicants have been roughly three to five times as likely to be admitted as comparable applicants without the family tie.

The rules around legacy are also shifting. California now bars legacy preferences at private colleges whose students receive state aid, and lawmakers in New York and Congress have proposed similar bans. This guide covers how legacy status works in the 2026-27 admissions cycle, which top schools still use it, how much it helps, how graduate degrees and donations factor in, and how to plan around it.

How Legacy Admissions Work

You are a legacy at a college when one of your parents earned a degree there, and the advantage applies only at that college. Harvard economists Raj Chetty, David Deming and John Friedman studied admissions at the 12 "Ivy-Plus" colleges, meaning the eight Ivy League schools plus Stanford, MIT, Duke and the University of Chicago. Their studyfound that children of alumni were far more likely to be admitted at their parent's college, and were admitted at the same rate as everyone else at the other colleges in the group.

That pattern shows the edge comes from the family connection itself. If legacy applicants were simply stronger candidates, they would have done better at every college they applied to.

Colleges learn about the connection from your application. The Common App family section asks where each parent went to college and which degrees they earned, and many schools add their own question about other relatives who attended.

The strongest tie is what researchers call a primary legacy, a parent who attended the school as an undergraduate. Grandparents, siblings, aunts and uncles carry less weight, and some schools leave them out entirely. Brown limits its preference to children of parents with a Brown undergraduate degree, and Notre Dame counts only a mother or father with a Notre Dame degree. Penn is broader and includes grandchildren of graduates of any Penn school.

Which T20 Schools Still Consider Legacy

Most private universities in the top 20 still consider legacy status. The clearest public record is the Common Data Set, a standardized report most colleges publish each year. Its admissions section rates how much each factor matters, from grades and essays to "alumni/ae relation."

In the 2025-26 reports, Harvard, Yale, Princeton, Columbia, Penn, Brown, Dartmouth, Cornell, Stanford, the University of Chicago, Duke, Northwestern, Rice, Vanderbilt and Notre Dame all list alumni relationships as a factor they consider. WashU, Emory and Georgetown, which often rank just outside the top 20, do the same. Stanford remains on the list despite California's 2025 ban, for reasons covered in the section on state rules below.

MIT, Caltech, Johns Hopkins, UCLA and UC Berkeley evaluate every applicant without regard to family ties, as do Carnegie Mellon and the University of Michigan. MIT has gone at least 50 years without a legacy preference. Johns Hopkins announced in 2020 that it had dropped its preference, and the University of California ended it on every campus in 1998.

Every college sees your parents' education through the Common App, so the Common Data Set is the better guide to whether a school acts on it. "Considered" is the lowest positive rating on the form, below "important" and "very important." As the next section shows, that modest label understates how much legacy status can matter.

How Much Legacy Status Helps

At a parent's own school, legacy status has multiplied applicants' chances several times over. The most detailed evidence comes from Harvard's admissions records, released during the 2018 trial over its admissions policies. Across the classes of 2014 through 2019, about one in three legacy applicants was admitted, compared with 5.5 percent of applicants with no special status.

Economists Peter Arcidiacono, Josh Kinsler and Tyler Ransom used those records to separate the effect of legacy status from everything else in the file. In their model, a white applicant with a 10 percent chance of admission would have had a 49 percent chance as a legacy. Arcidiacono testified for the group that sued Harvard, though the figures come from Harvard's own data.

Research across other schools points the same way. The Chetty study, published in the Quarterly Journal of Economics in 2026, compared applicants with similar test scores across the 12 Ivy-Plus colleges. Legacies from top 1 percent families were about five times as likely to be admitted to their parent's college, and legacies from families outside the top 5 percent were about three times as likely. An earlier study of 30 selective colleges by economist Michael Hurwitz found that legacy status roughly tripled the odds of admission.

A tiebreaker only matters between nearly identical applicants. An effect this size changes outcomes across a large share of the applicant pool, and it shows in class composition. Legacies made up 13.1 percent of Penn's Class of 2030, 12.4 percent of Princeton's Class of 2029 and 11 percent of Dartmouth's Class of 2029.

Because the boost multiplies the chances your application already has, it pays off most when you are already near the admissions bar. With top grades, rigorous coursework and strong activities, a legacy connection can turn a reach school into a realistic one.

Why Legacy Matters Most in Early Decision

Legacy status carries the most weight in Early Decision, and the reason is yield, the share of admitted students who actually enroll. Colleges describe legacy preferences as a way to honor tradition and community. In practice, a legacy admit is a reliable enrollment.

At Notre Dame, about 75 percent of admitted legacies enrolled, compared with about 50 percent of other admitted students, according to the university's former enrollment chief. Every legacy admit who enrolls is one fewer seat the school has to fill from a waitlist or a larger admit pool.

Early Decision is binding, so it removes what uncertainty remains. A legacy who applies ED offers a guaranteed enrollment from a family with a long relationship with the school, and the numbers reflect it. Cornell has told legacy applicants to apply early to show their commitment, and legacies made up 22.1 percent of its early admits in 2018. Penn's former dean of admissions advised legacy families that the early round was where the connection helped, and Penn has since softened its public wording and stopped publishing its early-round legacy figures.

Harvard, Yale, Princeton and Stanford offer restrictive early action instead, which is non-binding but limits where else you can apply early. Those plans give a school less certainty than ED, though applying early still tells the school it is your top choice.

The legacy edge is worth the most when it lines up with your real first choice. Because ED locks in your enrollment before you see competing financial aid offers, run the school's net price calculator before you commit.

When a Parent Attended Graduate School

If your parent earned only a graduate degree from the school, whether you count as a legacy depends on the school.

Harvard, Columbia and Brown reserve legacy status for children of undergraduate alumni, and Dartmouth has taken the same position. Harvard's admissions director has described the preference as applying to children of Harvard and Radcliffe College alumni, so a parent whose only Harvard degree came from the business school or law school falls outside it. Columbia's admissions office defines a legacy as the child of a Columbia College or Columbia Engineering graduate, and Brown limits its preference to parents with a Brown undergraduate degree. Dartmouth's admissions dean said in 2003 that only children of Dartmouth College graduates qualify.

Penn, Princeton, Stanford and Cornell count graduate alumni as well. Penn includes children and grandchildren of graduates of any Penn school. Princeton counts children of graduate and undergraduate alumni, and the Daily Princetonian reported in 2020 that the two carry the same weight. Stanford counts parents with undergraduate or graduate Stanford degrees, and Cornell has defined a legacy as the child or grandchild of anyone holding a Cornell degree.

Yale and Notre Dame appear to count graduate degrees too. The Yale Daily News has described Yale legacies as children of alumni of Yale College or its graduate and professional schools, and Notre Dame's admissions staff describe a legacy as a parent who earned a Notre Dame degree, without specifying undergraduate.

Where a graduate degree counts, expect it to carry less weight than an undergraduate one unless the school says otherwise. Hurwitz found that the size of the legacy boost depends heavily on the type of family tie and is largest when a parent attended as an undergraduate. His study grouped parents who attended only graduate school with grandparents, siblings, aunts and uncles, a category that received a much smaller boost.

For schools not listed here, the application's own family questions are the best clue, and the admissions office can confirm its definition. List every degree your parents earned accurately in the Common App family section, and each school will apply its own rules.

How Donations Fit In

Donations work through a separate channel from legacy status, and the gifts that change admissions decisions are major philanthropy rather than annual alumni giving.

At Harvard, the admissions dean kept a list of applicants of special interest, including those whose parents or relatives had donated to Harvard or showed potential to donate. In the trial data, about 42 percent of applicants on that list were admitted. The same model that estimated the legacy boost put a white applicant's 10 percent chance at 75 percent with dean's list status. A family does not need alumni ties to land on a list like this.

Court records from the Varsity Blues prosecutions describe a similar structure at USC. According to a 2025 federal appeals court opinion, USC ran general admissions, athletic recruiting and a VIP list on separate tracks, and decisions based on an applicant's "philanthropic potential" were reserved for the VIP list.

No university publishes a dollar threshold. Development offices, the fundraising arms of universities, judge what a family could give over many years, so wealth and giving history matter more than any single check. The documented examples involve seven-figure gifts. Reporter Daniel Golden's book The Price of Admission described a $2.5 million pledge to Harvard made shortly before the donor's son applied. Annual fund gifts keep a family connected to a school, while the documented admissions advantage attaches to major-gift capacity.

Giving openly to a university through its development office is legal. Paying a coach or official to secure a spot is a federal crime, and the same appeals court held that such payments can count as bribes even when the money lands in a university account.

If Your Parent Never Donated or Stayed Involved

At most schools that consider legacy, a parent who never gave money or attended a reunion still passes on the advantage. Legacy status comes from the family section of your application. The Harvard model measured legacy and dean's list status as separate factors, so its legacy boost applies to legacies with no donor history.

The Chetty study points the same way. Legacies from families outside the top 5 percent, who are far less likely to be major donors, were still about three times as likely as comparable applicants to be admitted to their parent's college.

Some schools do weigh involvement. Georgetown's longtime dean of admissions, Charles Deacon, has said that legacy applicants receive more or less consideration depending on the parent's involvement since graduating, through giving, alumni association service or admissions interviewing. Schools that weigh involvement look at long-term relationships, so engagement counts most when it reflects years of real connection to the school.

How State and Federal Rules Are Changing

Five states now restrict legacy preferences, two of them at private universities, and a pending New York bill would add Columbia and Cornell to the list.

Colorado, Virginia and Illinois apply their bans to public universities only, which leaves Northwestern and the University of Chicago free to consider legacy. Maryland's 2024 law covers any college that receives state funds, public or private, and bars both legacy and donor preferences.

California's law, in effect since September 1, 2025, bars legacy and donor preferences at private colleges that benefit from state student aid. The final version carries no fine. A college that keeps the preferences must instead report data on its legacy and donor admits to the legislature and the state Department of Justice each year.

Stanford responded by leaving the state's Cal Grant aid program, the state aid that ties a college to the law, and covering that aid with its own funds. Stanford students had received about $3.2 million in Cal Grants in a single year. USC said it would keep considering legacy status anyway, which means filing the additional data the law requires. Both universities accepted a real cost to keep the preference, which shows how much they value their alumni families.

New York's Fair College Admissions Act would ban legacy preferences at every degree-granting college in the state, with civil penalties of up to $50,000 for a knowing pattern of violations. Versions of the bill have been introduced in each legislative session since 2022, and the current one was referred to the Senate Higher Education Committee in January 2026.

In Congress, bipartisan bills would cut off federal student aid to colleges that keep legacy or donor preferences. Until one passes, policy is set college by college and state by state, so check each school's newest Common Data Set and admissions pages every fall.

How to Factor Legacy Into Your College Plans

Treat legacy status as a multiplier on a strong application at one school, and build the rest of your plan on your own record.

Start by confirming two facts for each school where you have a family tie. The school's newest Common Data Set shows whether it considers alumni relationships at all, and the school's own definition shows whether your parent's degree counts.

If the legacy school is your genuine first choice, apply in the early round, where a family tie and a commitment to enroll reinforce each other. If another school is your first choice, your early application belongs there.

Build the rest of your list on your own record. The advantage applies only at your parent's school, so your chances everywhere else rest on your grades, course rigor, activities and essays. Legacy status also pays off in proportion to the strength of the application it sits on, so the most rigorous courses available, strong grades and meaningful activities matter as much for a legacy applicant as for anyone else.

List your parents' degrees accurately in the Common App family section. Your essays work best when they focus on your own interests and plans, and a family connection belongs in a "why us" essay when it genuinely shaped your interest in the school.

How Cosmic Can Help

Cosmic's team of PhD-credentialed admissions consultants helps families decide where a legacy connection fits in a complete college strategy. We help you choose the right school for your early application, build a balanced college list and write essays that show who you are. Schedule a consultation to start planning your applications.