Penn's Real Acceptance Rate: ED vs. RD

The University of Pennsylvania's published acceptance rate for the Class of 2028 (Fall 2024 entering class) is 5.40%, drawn straight from Penn's own Common Data Set: 3,523 admits out of 65,236 first-time, first-year applicants. That figure is accurate. It's also an average of two very different outcomes. Applicants who applied Early Decision were admitted at 14.22%. Applicants who applied outside that binding round were admitted at 4.05%. The gap runs more than three and a half times, inside the same filing, for the same entering class. Whether "Penn's acceptance rate" means something closer to 1 in 7 or closer to 1 in 25 depends almost entirely on which round produced your decision.

The Decomposition

| Round | Applications | Admits | Rate | Cohort | |---|---|---|---|---| | Overall | 65,236 | 3,523 | 5.40% | Fall 2024 entering class (Class of 2028) | | Early Decision | 8,683 | 1,235 | 14.22% | Fall 2024 entering class (Class of 2028) | | Non-ED (Regular Decision) | 56,553 | 2,288 | 4.05% | Fall 2024 entering class (Class of 2028), derived |

Show the math: Penn's Common Data Set reports two admit figures for first-year applicants: Section C1's university-wide total (65,236 applications, 3,523 admits) and Section C21's Early Decision subtotal (8,683 applications, 1,235 admits). Subtracting one from the other isolates everyone who applied outside the binding ED round. 65,236 minus 8,683 is 56,553 applications, and 3,523 minus 1,235 is 2,288 admits. 2,288 divided by 56,553 is 4.05%. Penn's CDS filing doesn't use the label "Regular Decision" for this remainder directly, but Penn runs a single-choice binding ED plan with no ED II round, so this non-ED figure functions as Penn's Regular Decision rate.

A Gap That Held Roughly Steady

One year earlier, for the Class of 2027 (Fall 2023 entering class), Penn's Common Data Set shows 59,465 total applicants and 3,489 admits, an overall rate of 5.87%. Of those, 8,109 applied Early Decision and 1,204 were admitted, an ED rate of 14.85%. The implied non-ED rate for that cycle was 4.45%, based on 2,285 admits out of 51,356 applications.

Compare that to Fall 2024. The overall rate slipped from 5.87% to 5.40% as Penn's total applicant pool grew from 59,465 to 65,236. The ED rate eased slightly too, from 14.85% to 14.22%. The non-ED rate moved down a bit less, from 4.45% to 4.05%. Unlike schools where the early and regular rates pull apart or converge sharply from one year to the next, Penn's gap between the two rounds held roughly constant across these two cycles: ED ran at a bit more than three times the non-ED rate in Fall 2023, and at roughly three and a half times in Fall 2024.

Why the Gap Is This Big

Early Decision at Penn is binding. An admitted ED applicant has agreed, before applying, to enroll and to withdraw every other application. That commitment removes the single biggest source of uncertainty an admissions office manages when building an incoming class: yield, meaning the share of admitted students who actually enroll. A Regular Decision admit's enrollment is still a probability. Admissions offices know that regular-round admits are typically comparing offers from several schools at once, so a college can't know in advance how many will say yes. That uncertainty pushes RD admission rates down, because the school has to admit conservatively enough to hit its target class size even accounting for RD admits who enroll elsewhere. Binding ED eliminates that uncertainty for the students who use it. That's a structural fact about how binding admission plans work, not a claim about the relative strength of ED and RD applicants.

It also means the two applicant pools are shaped differently almost by definition. Students who apply ED have already decided Penn is their first choice, before knowing their financial aid package. The RD pool includes plenty of applicants who are just as competitive as ED admits, but who chose to wait, whether to compare aid offers, to let a stronger fall semester show up on their transcript, or simply because Penn wasn't their clear first choice until later in the process. A 4.05% non-ED rate is not a verdict on the strength of that pool. It reflects a much larger, later-stage pool competing for whatever seats the ED round hasn't already filled.

What This Means for Your Application

The most important thing to understand about the 14.22% ED figure is that it isn't a rate you can borrow for an identical Regular Decision application. The ED and RD pools are different populations, self-selected in different ways, so the roughly 3.5x gap between them overstates what switching rounds alone would do for one specific applicant with one specific file. It describes the odds each pool actually faced, not the odds a single student would gain by moving from one pool to the other.

It's also worth saying plainly: ED is a binding financial decision as much as an admissions one. Applying ED means agreeing to enroll before you've seen your financial aid offer and before you can compare it against any other school's package. If comparing aid matters to your family, and for most families it does, that comparison needs to happen before you commit to ED, not after. A signed acceptance removes your ability to negotiate or shop the offer once it's in.

Penn admits its undergraduates through four schools (the College of Arts & Sciences, the Wharton School, the School of Engineering and Applied Science, and the School of Nursing). Neither Penn's Common Data Set nor its central admissions site publishes a school-by-school breakdown of applications, admits, or rates, so the 14.22% and 4.05% figures above are university-wide averages across all four. Treat them as your best available reference points rather than numbers that apply identically no matter which school you're applying into.

If Penn is a genuine first choice for your family and financing isn't the deciding factor, the ED numbers reflect a real structural advantage worth taking seriously. Our application deadline tracker can help you map Penn's ED and Regular Decision dates against the rest of your list, and our college list builder can help you see how Penn compares to your other targets before you settle on a round.

A short conversation with an advisor can help you weigh whether a 14.22% shot at a binding commitment makes more sense for your family than a 4.05% shot that leaves every option open. Book a free strategy call if that's still an open question.

The Waitlist

Penn's Fall 2024 Common Data Set reports 2,958 qualified applicants were offered a spot on the waitlist, 2,288 accepted the offer, and 66 were ultimately admitted from the waitlist, a conversion rate of about 2.9% among students who accepted. Penn's filing also notes the waitlist is unranked, meaning accepting a spot doesn't place you in a fixed queue position; Penn draws from the full accepted pool based on its own remaining class needs. Those 66 waitlist admits are already folded into the 3,523 total admits above, and into the 4.05% non-ED rate, rather than sitting on top of it as a separate opportunity.