Undecided or Declared? How the Major Box on the Application Changes Your Odds
Every year, Elite Prep helps seniors through the college application process. We hope the information below is useful.
With November 1 deadlines approaching, there is one box on the application where families tend to stall.
“My student hasn’t picked a major. Is it safe to apply Undecided, or should we just put Computer Science?”
The short answer: it depends on the school. At most private universities, which admit students to the university as a whole, applying Undecided does not hurt. At large public universities that admit by school or by major, the major box is effectively the admission rate. For fall 2025, UCLA admitted 0.5% of nursing applicants, 7.3% of computer science applicants, and 11% of applicants to its general College. Same campus, same student, completely different competition depending on which box is checked.
Just as important: you cannot change the major after submitting, and switching majors after enrollment is harder than most families expect. This guide explains how the major box works at each type of school, backed by official admissions policies, and how to fill it in whether your student has decided or not.
| Part | What it covers |
|---|---|
| 1 | Two kinds of schools, two meanings of the major box |
| 2 | The numbers: admit rates by major within one school |
| 3 | The UC system: the weight of the major varies by campus and college |
| 4 | UW, Michigan, UIUC, Purdue: direct admission is the real path |
| 5 | When applying Undecided hurts |
| 6 | When declaring a major hurts |
| 7 | A five-point check for every school on the list |
| 8 | Common mistakes |
| 9 | Frequently asked questions |
1. Two kinds of schools, two meanings of the major box
American colleges admit first-year students in one of two ways.
| Admits to the university as a whole | Admits by school or major | |
|---|---|---|
| Typical examples | Most private universities and liberal arts colleges | Engineering, computer science, nursing and business at large public universities |
| What the major box means | A preference; useful context | The pool you compete in for a fixed number of seats |
| Applying Undecided | Generally not a disadvantage | Capped majors become very hard to enter later |
| Changing majors later | Usually flexible | Minimum GPA, prerequisite courses and seat limits by major |
The College Board’s BigFuture guidance states that for most colleges, choosing Undecided will not affect a student’s chances of admission; admissions officers understand that many students are not ready to commit. The same guidance lists an exception that matters: majors that require students to be admitted as first-years.
⚠️ Keep in mind: At many public universities the major box is not a survey question. It is the unit of admission. Check how each school admits before you check the box.
2. The numbers: admit rates by major within one school
How wide is the gap between majors at a school that admits by major? Published figures for fall 2025:
| School and major | Fall 2025 admit rate | Note |
|---|---|---|
| UCLA Nursing (prelicensure) | 0.5% | School of Nursing |
| UCLA Computer Science | 7.3% | Samueli School of Engineering; admitted GPA 25th and 75th percentile both 4.00 |
| UCLA Computer Science and Engineering | 7.2% | Samueli School of Engineering |
| UCLA The College (general) | 11% | Major choice is neutral here |
| UW Computer Science, Direct to Major, Washington residents | 37% | Allen School |
| UW Computer Science, Direct to Major, out-of-state U.S. applicants | 5% | Same major, different residency |
| UW Computer Science, Direct to Major, international | 2% |
Within UCLA, the gap between nursing and the general College is more than twentyfold. At UW, the same computer science major admits Washington residents at 37% and out-of-state students at 5%. “Admitted to UCLA” or “admitted to UW” means very different things depending on which school and which major the offer is for.
3. The UC system: the weight of the major varies by campus and college
One UC application reaches nine campuses, but each campus and each college uses the major box differently. From UC admissions guidance:
| Campus | Where major choice is considered | Where it is neutral |
|---|---|---|
| UCLA | Samueli Engineering, Nursing, Theater Film and Television, Arts and Architecture, Music | The College of Letters and Science, where major choice is a neutral factor |
| UC Berkeley | Chemistry; Computing, Data Science and Society (CDSS); Engineering; Environmental Design; Haas School of Business. First-choice major is a factor in admission | General majors in Letters and Science |
| UC Davis, UC San Diego and others | First-choice major may affect selection for specific programs | Check each campus |
Berkeley adds one more rule for students admitted in fall 2023 and later: the high-demand major policy. Berkeley tells applicants who want a high-demand major to list it as their primary major on the application; admitted students are guaranteed a place if they complete prerequisites and remain in good standing. Students who enter through another major get one chance to apply by comprehensive review, and Berkeley states plainly that opportunities to enter a high-demand major after enrollment are “extremely limited” and that applying does not guarantee a spot. The university also requires those students to have a back-up plan to declare a non-high-demand major.
📌 In short: For a student heading toward a general Letters and Science major, Undeclared is a safe choice at UC. For engineering, computer science, nursing or business, which are reviewed by their own schools, listing that major as the first choice is effectively the only path.
4. UW, Michigan, UIUC, Purdue: direct admission is the real path
At large public universities, “get in first, switch majors later” no longer works for the most popular programs. Here is what the schools themselves say.
| School | How majors are reviewed | What the school says about switching in later |
|---|---|---|
| University of Washington | Computer science, computer engineering, all engineering majors, informatics, biochemistry, neuroscience, statistics and others are Direct to Major for first-years | “If you’re not admitted directly to the Allen School as a first-year, it’s unlikely that you’ll be admitted to computer science or computer engineering as a UW student.” Other engineering majors: “competitive, and space may be limited” |
| University of Michigan | Admits directly to the College of Engineering | Cross-campus transfer into Engineering is competitive |
| UIUC | Reviews by major; applicants list a first-choice and a second-choice major | Computer science (including every CS + X major) cannot be chosen as a second-choice major and is open only to new first-year and transfer applicants |
| Purdue | Admits to individual majors | Change of major (CODO) requires a minimum GPA and specific course grades; computer science takes students “on a space-available basis” |
Three patterns repeat. First, popular majors are decided at the point of application. Second, the fallback route, an internal transfer, is narrow enough that the universities themselves warn it is unlikely. Third, at schools with a second-choice box such as UIUC, that box is the most important decision after the first choice. Since CS cannot be listed second there, a student whose first choice is CS needs a second choice they would genuinely attend.
5. When applying Undecided hurts
The College Board names two situations where Undecided works against a student.
| Situation | Why it is a problem |
|---|---|
| Wanting a major that admits only at the first-year stage, but applying Undecided | As the UW, UIUC and Berkeley policies show, there is almost no way into that major after enrollment |
| Essays full of passion for one field, but the major box says Undecided | The application reads as inconsistent. The College Board advises choosing the major closest to that passion instead |
Add a third: engineering and other majors with a fixed course sequence from the first semester. Experts quoted by U.S. News note that programs built on calculus and introductory engineering courses are hard to finish in four years if a student starts late. A student who wants engineering saves both time and tuition by applying to the engineering college from the start.
6. When declaring a major hurts
The opposite mistake is just as costly. Listing a capped major because it “looks impressive” can turn a student who would have been admitted to another program into an outright denial. At UCLA, admitted computer science applicants had a GPA of 4.00 at both the 25th and 75th percentile. Standing in that line changes the competition.
| Type of school | “Apply as CS, switch if it doesn’t work” |
|---|---|
| Private universities and liberal arts colleges | Often possible, since movement between majors is flexible |
| Public universities that admit by school or major | Does not work, because internal transfer is just as narrow |
So before declaring a capped major, ask: does this student have the grades, courses and activities to be admitted to this major? Reviewers look for one consistent line connecting coursework (calculus, physics, AP Computer Science), activities and essays to the declared major. If that line is thin, an adjacent major such as mathematics, data science or informatics, or a realistic second choice, protects the chance of admission.
7. A five-point check for every school on the list
Run this check for each school, because the answers differ. A student applying to ten schools does it ten times.
| Step | What to confirm | Where |
|---|---|---|
| 1 | Does this school admit to the university as a whole, or by school and major? | The admissions site’s “Admission to majors” or “Choosing a major” page |
| 2 | Is the first-choice major capacity-limited (impacted, selective, high-demand, capacity-constrained, direct-admit)? | Same page, or the school or college’s own admissions page |
| 3 | Is there a second-choice (alternate major) box, and what will go in it? | The application form (UIUC and others) |
| 4 | What are the change-of-major rules: minimum GPA, prerequisites, “space-available” language? | The school’s Change of Major, CODO or Internal Transfer page |
| 5 | Do coursework, activities and essays line up with the declared major? | Review the whole application together |
💡 Advice: If step 1 says “admits by major,” then at that school Undecided means “I plan to be in the general college,” not “I plan to move into CS later.” Fill in the rest of the application with that in mind.
8. Common mistakes
| Mistake | Why it is a problem |
|---|---|
| Applying to a less popular major to boost the odds, planning to transfer in | At public universities, CS, engineering and nursing are just as capped internally; the schools say so officially |
| Listing the parents’ preferred major while the essays tell a different story | The application reads as inconsistent |
| Copying the same major onto every application | Review units differ; the same major is neutral at one school and the narrowest door at another |
| Leaving the second-choice box blank | At schools like UIUC, that box is a real admission route |
| Reading the change-of-major rules after admission | They need to be read before choosing the first and second choice |
9. Frequently asked questions
Q1. Is Undecided really safe at a private university?
The College Board states that at most colleges, Undecided does not affect admission. The exception is a private university whose engineering, nursing or business school admits separately. If your student wants one of those, check that school’s own rules.
Q2. If my student applies to UC as Undeclared, can they move into UCLA engineering or Berkeley CS later?
UCLA states that its professional schools, including engineering and nursing, consider major choice. Berkeley states that opportunities to enter a high-demand major after enrollment are extremely limited. A student who wants those majors should list them as the first choice on the application.
Q3. My student was admitted to UW but not directly to computer science. Can they transfer in?
UW’s admissions office states that a student not admitted directly to the Allen School as a first-year is unlikely to be admitted to computer science as a UW student. Do not base the enrollment decision on a planned transfer.
Q4. CS as a first choice looks like a long shot. What goes in the second-choice box?
A major the student would actually attend. UIUC does not allow CS as a second choice, so look at mathematics, statistics, informatics or another field where the student’s interests continue.
Q5. My student truly has not decided. Is that a problem?
No. Advisers generally say a student who declares by the end of sophomore year graduates on time. The one exception is engineering and similar sequenced programs, where starting late makes a four-year finish difficult. Settle only one question first: is engineering off the table or not?
Final thoughts
The major box looks small, but at many public universities it is the unit of admission. At a private university, there is no reason to fear Undecided. At a public university that admits by school or major, list the major your student wants as the first choice, but only after confirming the record supports it. And either way, read the change-of-major rules before applying, not after admission. One check per school before November 1 is all it takes.
For a closer look at your family’s plan, reach out to your nearest Elite Prep:
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