The Early Decision advantage is real, but it is not evenly distributed. We read the Common Data Set filings of 38 schools that report their binding round separately, and the pattern is the opposite of what most families assume: the boost is largest at the most selective schools and fades to nothing below the top 50.
How the multiple is measured
Each school reports two numbers in section C21: how many applied Early Decision and how many were admitted. Subtract those from the totals in C1 and you get the admit rate for everyone else. Divide the ED rate by the rest-of-pool rate and you have the multiple — how many times more likely an ED applicant was to be admitted than a regular one, at that school, that cycle.
That multiple does not mean you personally are that much more likely. The ED pool is different: more certain, often stronger, sometimes recruited athletes and legacies. But it is the one number the school publishes, and it is what we compare.
Top 25 national universities: the boost is big
Thirteen of our 38 sit in the U.S. News top 25 for national universities (2026 edition). Their ED multiples:
Dartmouth 5.7×. Duke 4.1×. Brown 3.7×. Penn 3.6×. Columbia 3.5×. Northwestern 3.5×. Vanderbilt 3.4×. Washington University in St. Louis 2.9×. Cornell 2.8×. Emory 2.6×. Johns Hopkins 2.1×. Carnegie Mellon 2.0×. Rice 1.5×.
The median is about 3.4×. Eleven of thirteen are above 2× and none is below 1.5×. At Dartmouth, 21.6% of the binding pool was admitted against 3.8% of everyone else; at Duke, 17.3% against 4.2%. These are the schools where the binding round most changes the arithmetic.
Ranks 26 to 50: still meaningful, more scattered
Seven schools here: Northeastern 11.2×, Tufts 3.8×, Boston University 2.8×, Boston College 2.4×, Virginia 1.8×, Lehigh 1.8×, Rochester 1.0×.
Northeastern's figure is real but strange — 43% of a small binding pool admitted against 3.8% of a huge regular one. It reflects how the school shapes its class, not a secret door. Set it aside and the band runs roughly 1.8× to 3.8×, a step below the top 25 — except Rochester, where the binding pool was admitted at 41.8% and everyone else at 41.9%: no advantage at all.
Ranks 51 to 100: the advantage mostly disappears
Seven schools: Villanova 2.3×, Santa Clara 1.6×, Baylor 1.5×, William & Mary 1.4×, American 1.2×, RIT 1.0×, Case Western 0.7×.
Villanova aside, none of these gives more than a modest edge, and Case Western's binding pool was admitted at a lower rate than its regular pool. At this band, the binding application buys you almost nothing in admit probability — and it still costs you the ability to compare aid offers.
Liberal arts colleges follow the same curve
Among the eight liberal arts colleges we read: Wesleyan 3.1×, Haverford 2.9×, Bowdoin 2.7×, Hamilton 2.5×, Skidmore 1.9×, Smith 1.6×, Harvey Mudd 1.6×, Lafayette 1.4×. Most of the top-15 colleges give 2× or more — Harvey Mudd and Smith, both at 1.6×, are the exceptions; Lafayette, at rank 30 on the LAC list, gives the least.
The size of the pool matters too
The share of applicants who choose the binding round is small everywhere — 8% to 16% at the top-25 schools we read, under 4% at Northeastern, under 2% at Baylor and Vermont. The seats those applicants take are not small: at the top 25 the binding pool supplied 14% to 45% of every admit. Ten percent of applicants taking a third of seats is what a multiple of 3× looks like from the other side.
Why the curve runs this way
A school that admits 4% of its regular pool has room to reward commitment; a school that admits 50% does not need to. The most selective schools also fill the largest share of their class early — Dartmouth took 45% of all its admits from the binding round, Penn 35% — because they can. A school admitting most applicants anyway has little reason to hold seats for a binding pool.
There is a second reason. At the top, the ED pool is self-selected toward students who are competitive and certain. At the bottom, the ED pool is small and often weaker than the regular pool, because strong applicants there are using their binding application somewhere more selective.
What this means for your one binding application
If your first choice is in the top 25 and your score sits inside its admitted range, the binding round is doing real work — the published multiple says so. If your first choice is ranked 51 to 100, the round is mostly a signal of preference, not a lever, and you should weigh what you give up: the chance to compare four aid packages in April.
The mistake is applying ED to a reachable school where it does not help, because the advantage "feels" universal. It is not. Look up the school's own multiple before you sign.
Where the numbers come from
Every ED and rest-of-pool figure is from the named school's Common Data Set, sections C1 and C21, 2024–25 or 2025–26 cycle, as noted on each school's page. Rankings are U.S. News Best Colleges 2026. Multiples are computed, not published, and describe the pool, not you.
Name the school you're considering for Early Decision and see what it published about its early round and your estimate there — free, without an account. Which school on your list to spend the binding application on is $9.99 through Nov 15 (regular $49), once. Start with your school.
Results are data-based estimates and do not guarantee admission. This article is for informational purposes only and does not guarantee admission outcomes. All data is based on publicly available information and may not reflect current admissions standards.
Written by PrepToDone Team — data analysis on U.S. federal education datasets (IPEDS · College Scorecard).