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If you’re a Taiwanese or Chinese-speaking student applying to US universities this cycle, the calendar is brutal: SAT/ACT prep, extracurriculars, essays — and somewhere in there, an English proficiency test. That’s why more applicants are turning to the Duolingo English Test (DET): no test-center booking, take it at home, results in as little as two days, and a lower price tag than the alternatives.
This guide covers what you need for the 2026-27 cycle, based on Duolingo’s official materials (englishtest.duolingo.com) and university admissions pages — including the “Interactive” format changes from July 2025, an official score comparison, and a realistic timeline for a November 1 Early Decision deadline.
What the DET Actually Is
The DET runs entirely at home on your computer, about one hour total: roughly a 45-minute adaptive test (difficulty adjusts in real time based on your answers) plus about 10 minutes of unscored writing and speaking samples sent to institutions alongside your score. You’ll need a working webcam, microphone, a government-issued ID, and a quiet room — headphones aren’t allowed, and the session is monitored by AI and human proctors together.
Duolingo’s own site advertises the test as available “anytime,” with results delivered in 2 days. In a hurry? A “Faster Results” add-on (roughly $39-40) gets your certified score back in about 12 hours.
The 2025-26 “Interactive” Format Overhaul
Starting July 1, 2025, Duolingo rolled out its biggest speaking and listening format update in recent memory:
- New Interactive Speaking section. AI characters named Bea or Oscar ask you 6-8 conversational questions, each with up to 35 seconds to respond, with each question building on your previous answer to simulate a real conversation. This replaced the older Read Aloud and Listen Then Speak question types entirely.
- Expanded Interactive Listening. Each conversation now opens with a “Listen and Complete” task — listen to a spoken scenario and answer 3-4 fill-in-the-blank questions — before moving into 5-6 “Listen and Respond” questions and a closing summarization task. Scenario audio replays unlimited times; you get 6 minutes 30 seconds for listen-and-respond and 75 seconds for the summary, across two Interactive Listening conversations.
Duolingo’s own description says the goal was to make the test feel more like authentic communication, with more weight on fluency and comprehension rather than rote memorization. Practically, templated “canned answers” are less useful now — regular spoken-English practice matters more.
How Scoring Works: 10-160 Scale, Four Subscores
DET overall scores run from 10 to 160, in increments of 5. Alongside your overall score, you’ll receive four subscores:
- Literacy
- Comprehension
- Conversation
- Production
Most schools focus on the overall score, though discussion-heavy programs sometimes look more closely at the Conversation subscore. Scores are valid for two years; after that, you can no longer share the result or access your certificate.
Retakes and Sending Scores
- A single test purchase gives you one credit, good for up to 3 attempts within 21 days (a dropped connection counts as an attempt, though genuine technical errors can qualify for a free retake). A two-test bundle gives two credits.
- You can purchase the test a maximum of 3 times per 30-day period.
- Sending your certified score to institutions is free and unlimited — up to 40 institutions per batch, with more available on request.
DET vs. TOEFL vs. IELTS
One wrinkle: TOEFL iBT switched to a new 1-6 scoring scale on January 21, 2026, replacing the 0-120 scale used for two decades (reports show both scales during the transition). Because Duolingo’s concordance tables were built from 2024-2025 TOEFL reports on the old scale, Duolingo notes that comparisons to the new TOEFL scale are preliminary until more new-scale data comes in.
| Duolingo English Test | TOEFL iBT | IELTS Academic | |
|---|---|---|---|
| Where you take it | Entirely at home, on demand | Test center or at-home edition | Mostly test centers; at-home option in some markets |
| Duration | About 1 hour | About 2 hours | About 2 hours 45 minutes |
| Cost (single test) | ~$70 USD | ~$200-255 USD (varies by region) | ~$200-250 USD (varies by region) |
| Results turnaround | 2 days (12-hour rush available) | ~4-8 days | ~3-13 days depending on format |
| Score scale | 10-160, in steps of 5 | 0-120 (plus new 1-6 scale from Jan 2026) | 0-9, in half-point steps |
| Sending scores | Unlimited institutions, free | Paid per institution | Paid per institution |
| Validity | 2 years | 2 years | 2 years |
Note: TOEFL and IELTS pricing varies significantly by test region and currency — always confirm current local pricing on the ETS and IELTS registration pages.
Official Score Comparisons
Duolingo’s official concordance tables (built from real dual-test data — about 1,943 test takers for IELTS and 948 for TOEFL, collected 2024-2025) give a rough sense of equivalence:
- 105-115 DET ≈ TOEFL (old scale) 70-90 ≈ IELTS 6.0-6.5 — the baseline many schools set as a minimum.
- 120 DET ≈ TOEFL (old scale) 95-100 ≈ IELTS ~7.0 — a solidly competitive range.
- 130+ DET ≈ TOEFL (old scale) 105-110 ≈ IELTS 7.5+ — the range favored by the most selective private universities.
Equivalence varies by subscore, and Duolingo cautions these tables are a guide, not a strict conversion — admissions offices weigh proficiency scores alongside the rest of your application.
Which US Universities Accept the DET, and at What Score?
The DET is now accepted by more than 6,000 institutions worldwide. Based on individual admissions pages (always confirm the current requirement directly — program-level policies can differ from the university-wide default):
- Yale: no published hard minimum; competitive range is generally cited around 120+
- NYU: officially accepts the DET; its own admissions page lists 130+ as competitive
- Georgetown: minimum around 120 (alongside TOEFL 100 / IELTS 7.0)
- Duke: doesn’t require a proficiency score outright, but recommends roughly 120+ if submitted
- MIT: no published hard minimum for undergrads (recommended, not required); graduate guidance is 135, with some departments (e.g., Urban Studies and Planning) setting higher
- USC: official minimum of 130
- University of Central Florida: minimum 120
- Boston University and Purdue: minimum around 100
- Northeastern: minimum around 105
University of California system: UC campuses don’t treat the DET uniformly — some accept it outright, others use it as supplementary alongside TOEFL/IELTS. Check the specific policy for each UC campus rather than assuming one system-wide rule.
A confirmed holdout: Georgia Tech’s Graduate Education office states directly on its official English Proficiency page, “We do not accept Duolingo as proof of English proficiency” — only TOEFL iBT and IELTS Academic satisfy that requirement for graduate applicants. Despite the DET’s broad adoption, some schools — especially at the graduate level — still hold the line on TOEFL/IELTS only, so verify per school and per program before committing to one test.
Timeline: Getting Ready for November 1 ED and January RD
As of today (July 31, 2026), here’s a realistic plan for the 2026-27 cycle:
If you’re applying Early Decision or Early Action (November 1 deadline):
- By mid-August, work through Duolingo’s official practice materials at englishtest.duolingo.com/practice to get comfortable with the new Interactive Speaking and Listening formats.
- Early September: schedule your first official attempt — DET slots are available on demand, typically with just a day or two of lead time.
- Mid-September through early October: based on your first result, decide whether a retake makes sense (max 3 purchases per 30 days).
- Finish your final attempt no later than around October 20. Turnaround is officially 2 days, but between the 12-13 hour time difference from Taipei to the US East Coast, school processing time, and the chance of an account review delay, build in at least a 10-day buffer rather than testing the last week of October.
- Once results are in, send your score to every school on your list immediately through the DET portal (it’s free), and confirm receipt in each school’s applicant portal.
If you’re applying Regular Decision (most deadlines January 1 or January 15): aim to finish your last attempt by mid-December, leaving at least a week of buffer. If December is already packed with a final SAT/ACT sitting and essay revisions, the DET’s shorter runtime and no-booking format is one of the easiest ways to claw back time in a crowded fall schedule.
Final Thoughts
The DET’s real advantage isn’t that it’s “easier” — it’s that it gives you back time you’d otherwise spend booking test centers, waiting weeks for a seat, or sitting through a three-hour exam. But because minimum scores and acceptance policies vary so much school to school, testing first and figuring out requirements later can leave you with a score that doesn’t match what your target schools expect.
Ivy-Way’s advisors work with students across Taiwan and the broader Chinese-speaking world to plan out exactly this kind of timeline — choosing between DET, TOEFL, and IELTS, setting a realistic target score, and pairing that with one-on-one speaking and writing tutoring built around your actual school list. If you’re deciding between DET and TOEFL, or wondering whether you can still make a November 1 deadline, reach out to the Ivy-Way team and we’ll help you map it out precisely.
