WashU DET Score for 2027 Admission: Do You Need 125 or 130?

If you're applying to Washington University in St. Louis (WashU) with the Duolingo English Test, you may find two different DET score requirements online: 125 and 130.

So which one do you actually need?

The short answer is that 125 is WashU's university-wide minimum DET score, while 130 is the score WashU says its most competitive undergraduate applicants typically achieve.

That distinction is important not only for WashU applicants but for anyone researching university Duolingo English Test requirements. A university's official minimum score and the score that makes an applicant competitive are not always the same.

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WashU's Minimum DET Score Is 125

A new WashU English-language proficiency policy became effective on September 1, 2026.

Under the university-wide policy, WashU accepts the following minimum scores:

For the Duolingo English Test, the requirement is specifically an overall DET score of at least 125.

This 125 threshold also appears across several WashU graduate programs. McKelvey School of Engineering, for example, currently lists DET 125 as its minimum English proficiency score for international graduate applicants.

So where does the 130 score come from?

WashU Recommends 130 for Competitive Undergraduate Applicants

WashU Undergraduate Admissions gives students a little more information than the university-wide minimum.

Its current English testing page acknowledges the university minimum but then explains that the most competitive undergraduate applicants typically have a DET score of 130 or higher.

That gives applicants two important numbers:

125 = university minimum

130+ = competitive undergraduate score

Those numbers do not contradict each other.

A student with a DET 125 satisfies the published university-wide minimum. However, WashU is a selective university, and simply satisfying a minimum requirement does not mean an applicant will necessarily be competitive for admission.

This distinction is easy to miss when students search Google for something like "WashU Duolingo requirement" and see one page saying 125 and another saying 130.

Should You Target 125 or 130?

For an undergraduate applicant, 130 should generally be the more useful target.

Think of 125 as the line you must cross to meet the university's basic English-proficiency standard. Think of 130 as an indication of the score WashU sees among stronger undergraduate applicants.

A 130 does not guarantee admission, either. English proficiency is only one part of an application.

Likewise, scoring 125 does not automatically mean your application will be rejected.

WashU describes 130 as typical of its most competitive applicants rather than stating that every undergraduate applicant must achieve it.

That language matters.

There is a major difference between:

"You must score 130."

and

"Competitive applicants typically score 130 or higher."

Students should be careful not to turn a recommendation into an absolute admission rule.

What About Graduate Students?

Graduate applicants need to check their individual school or program.

WashU's current graduate admissions policy lists DET 125 as the university minimum.

Several WashU graduate schools and programs currently use that same number.

McKelvey School of Engineering lists a minimum DET score of 125.

The Brown School also lists DET 125 as its minimum for international master's applicants.

Sam Fox School graduate programs similarly publish a DET minimum of 125.

However, graduate applicants should still check their exact department because program requirements can differ and universities can update requirements between admission cycles.

Why Does WashU Have a University-Wide English Requirement?

The new WashU policy is about more than admissions.

WashU says it must confirm that international students and visitors have sufficient English proficiency to participate successfully in their academic or professional programs.

There is also an immigration component.

For F-1 and J-1 students and scholars, WashU's Office for International Students and Scholars must have evidence of sufficient English proficiency before issuing immigration documents such as the I-20 or DS-2019.

This helps explain why students sometimes encounter English-proficiency requirements in different parts of a university website.

You might find one requirement from:

• Undergraduate Admissions
• Graduate Admissions
• A specific academic department
• The international student office
• A university-wide academic policy

A Major Fall 2027 Change: SAT and ACT No Longer Replace an English Test

There is another important change for students applying to WashU for Fall 2027.

WashU says that beginning with Fall 2027 applicants, SAT or ACT scores will no longer be accepted instead of an English-language proficiency examination for students who are otherwise required to demonstrate English proficiency.

Students who qualify for an English-testing exemption may still be able to avoid submitting a DET, IELTS or TOEFL score, but simply submitting an SAT or ACT score will no longer serve as a substitute.

WashU says students who have completed at least three years in an eligible English-medium academic program or U.S. high school and demonstrated strong academic performance may be considered for an exemption. These exemption decisions are made case by case.

When Should Fall 2027 Applicants Take the DET?

Timing also matters.

For students applying for Fall 2027 undergraduate admission, WashU says tests administered in December 2026 will be the last accepted for regular admission.

Students applying through Early Action or Early Decision I need to take their English proficiency test by October 2026.

Don't plan your first DET for the final possible testing period.

Leaving extra time gives you the opportunity to review your results, identify weaker skills and retake the test if your score is below your target.

If WashU is your target and you're currently scoring around 115–120 in DET practice, for example, waiting until the final testing window leaves very little room for improvement.

Minimum DET Score vs Competitive DET Score

WashU provides a useful example of a much bigger issue students encounter when researching Duolingo English Test requirements.

A minimum score generally means the lowest score that satisfies a university's stated English-proficiency requirement.

A recommended or competitive score tells you more about the level the university expects or commonly sees among stronger applicants.

Then there can be a third number: a program-specific requirement.

Imagine a university publishes:

University minimum: DET 115

Undergraduate admissions recommendation: DET 125

Graduate business program requirement: DET 130

A student searching only for "[University Name] DET score" could easily find the first number and assume that 115 is enough for every applicant.

It isn't.

This is why students should never rely entirely on university lists, search snippets or third-party DET requirement databases.

How to Check a University's DET Requirement Correctly

Before choosing your target DET score, verify four things:

1. University minimum: Is there a general English-proficiency requirement?
2. Applicant type: Are you applying for undergraduate or graduate admission?
3. Program requirement: Does your specific school or department require a higher score?
4. Recommended score: Does admissions publish a competitive score above the minimum?

Also check the application year. A requirement published for Fall 2026 may not necessarily remain the same for Fall 2027.

WashU's September 2026 policy update is a good reminder of exactly why this matters.

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So What DET Score Should You Aim for at WashU?

For most prospective WashU undergraduate applicants who are required to demonstrate English proficiency, a sensible target is:

DET 130 or higher.

That aligns with WashU's own description of its most competitive undergraduate applicants.

The official university-wide minimum remains:

DET 125.

For graduate applicants, 125 is the published university minimum, but always verify the requirements of the exact graduate program you're applying to.

The Bottom Line

WashU's DET requirement isn't really a case of one website saying 125 while another says 130.

The two numbers mean different things.

125 is the minimum.

130 is the undergraduate competitive benchmark published by WashU Admissions.

For students, the bigger lesson is important: don't prepare only for the lowest DET score you can find on a university website.

Look at the minimum, the recommendation and your program's specific requirements before deciding what score you actually need.

Preparing for a 125–130+ DET Target

If your university target is 125 or 130 but your practice scores are lower, identify which DET skills are keeping your overall performance down instead of simply repeating full practice tests.

DET Study provides practice across DET question types, including targeted speaking and writing practice with AI-supported feedback. You can use your weaker areas to guide your preparation and work toward the score your university actually expects rather than preparing for an arbitrary number.

Frequently Asked Questions

What is the minimum Duolingo English Test score for WashU?

WashU's university-wide minimum is an overall DET score of 125 under its English-language proficiency policy effective September 1, 2026.

Does WashU require a DET score of 130?

WashU Undergraduate Admissions says its most competitive undergraduate applicants typically have DET scores of 130 or higher. The university-wide minimum is 125, so 130 should be understood as a competitive undergraduate benchmark rather than the basic university minimum.

Does WashU accept the Duolingo English Test for graduate admission?

Yes. WashU's graduate admissions policy currently accepts the Duolingo English Test and lists a minimum overall score of 125. Applicants should still verify the requirements for their specific graduate program.

Can I use my SAT or ACT instead of the DET at WashU?

For students applying for Fall 2027 admission, WashU says SAT and ACT scores will no longer be accepted in place of an English-language proficiency test when English testing is otherwise required. Eligible students may still qualify for an exemption under WashU's exemption rules.