Your Test Choice Is Also a Deadline Problem
Picking an English proficiency test for US universities isn't just about which one feels easier. It's about which one your schools actually accept, how long results take to arrive, and whether you have enough weeks left before your earliest deadline to test, retest if needed, and get scores sent. Get this wrong in October of senior year and you could be scrambling in December with no clean way to fix it.
If you're applying from outside the US, this decision sits alongside other unfamiliar pieces of the process, like how holistic review works and what a weighted GPA even means. The test itself is one of the more controllable parts. Start here.
How TOEFL, IELTS, and Duolingo Actually Compare
The three tests measure similar skills but differ in format, length, cost, and how quickly you get results. No single test is "better." The right one depends on what your target schools list on their admissions pages.
Format and What Each Test Feels Like
The TOEFL iBT is a computer-based test covering reading, listening, speaking, and writing, taken at an official test center or at home under remote proctoring, according to ETS. It runs a few hours and has a traditional academic feel, with passages and lectures similar to what you'll encounter in a US classroom.
IELTS also tests all four skills but keeps the speaking section as a live conversation with a real examiner, either in person or online, per IELTS's own site. Some students find this less stressful than talking to a microphone; others find a live examiner more nerve-wracking. There's no universally right answer here, only your own comfort level.
The Duolingo English Test is shorter, entirely online, and adapts in real time based on your answers, according to Duolingo. You can take it from home whenever you're ready, and results typically post much faster than the other two. It's newer, so acceptance is growing but still uneven across schools.
Cost and Turnaround
Exact pricing varies by country and changes over time, so check the current fee on each test's official site before you register: ETS for TOEFL, IELTS.org, and the Duolingo English Test site. As a general pattern, Duolingo tends to cost less and deliver results faster than TOEFL or IELTS, which is useful information if you're testing close to a deadline. Neither TOEFL nor IELTS reports scores instantly, so build in a buffer.
How to Know Which Test Your School Accepts
Check the admissions page of every school on your list individually. Never assume that because one university takes Duolingo, all of them do, or that TOEFL is universal.
Requirements shift year to year and even department to department within the same university. A school's engineering program might set a different minimum score than its business school. The only reliable source is the current admissions page for that specific program, not a forum post, not last year's brochure, and not a friend's experience from two admissions cycles ago.
A practical way to track this without losing your mind:
- Make a simple spreadsheet with one row per school.
- Search each school's site for "English proficiency requirements" plus the current year.
- Record which tests are accepted, the minimum score, and whether scores must arrive by the application deadline or shortly after.
- Note any exceptions, like accepting a lower score with a conditional admission or ESL coursework attached.
- Revisit the sheet if you add or drop a school later in the process.
This same logic applies to standardized testing generally. GoodGoblin's database shows that across 735 colleges reporting scores, the median average SAT is 1,204, and the typical college's ACT middle-50% range spans about 6 points. Scores, English or otherwise, are read as a band admissions officers weigh in context, not a hard line you either clear or don't.
When You Might Qualify for a Waiver
Some schools waive the English test requirement if you've studied in an English-medium school for a set number of years, hold citizenship in certain countries, or scored high enough on the SAT/ACT verbal sections. Waiver rules are set individually by each university, so confirm directly on the school's website rather than assuming you qualify.
Common waiver situations worth checking for:
- Multiple years of full-time schooling in English, often documented through transcripts.
- Citizenship or residency in a country where English is an official or primary language of instruction.
- A qualifying score on an English-language section of another standardized test the school already requires.
- Prior enrollment at a US or other English-medium college or university.
Even if you think you qualify, don't skip the confirmation step. Waiver criteria are sometimes narrower than they sound, and submitting an application assuming a waiver that wasn't granted can delay your file during review.
How to Prepare Without Burning Out
Effective prep is targeted, not endless. Identify your weakest skill area first, then spend the bulk of your study time there instead of reviewing everything equally.
A workable timeline for a senior with a fall deadline:
- 8-10 weeks out: Take one full practice test under real time conditions to find your baseline and weakest section.
- 6-8 weeks out: Study that weak section daily using official practice materials from ETS, IELTS, or Duolingo directly.
- 3-4 weeks out: Take your official test. This leaves room for a retake if scores arrive low.
- 1-2 weeks out (if retaking): Focus only on the specific skill that dropped your score, not a full review.
Speaking sections trip up many strong students who read and write well in English. Practice speaking out loud, timed, and recorded, then listen back critically. It feels awkward. It works.
Your Next Steps
- Pull up each school's current admissions page and record its accepted tests and minimum scores in your spreadsheet.
- Confirm whether you might qualify for a waiver, and email the admissions office directly if the policy is unclear.
- Register for your test at least 8-10 weeks before your earliest deadline to leave room for a retake.
- Set a calendar reminder for score-sending deadlines, since test scores often need separate delivery instructions to each school.
- Bookmark our senior-year guide so this task stays connected to your full application timeline.
Frequently Asked Questions
Do all US universities require an English proficiency test for international students? Most do for applicants whose first language isn't English, but requirements and exceptions vary by school. Some grant automatic waivers based on prior English-medium schooling. Always confirm on the specific university's admissions page rather than assuming a blanket rule.
Can I submit more than one English test score? You generally choose one test and submit that score, since schools list minimums per test rather than asking for multiple. If your first score falls short of a school's stated minimum, retaking the same test or switching to a different accepted one before your deadline is usually the better move than submitting both.
Is the Duolingo English Test accepted as widely as TOEFL or IELTS? Acceptance is growing but still less universal than TOEFL or IELTS, according to information on Duolingo's own site. Confirm directly on each target school's page before choosing it, especially if you're applying to a wide range of schools.
What happens if my score is below a school's minimum? Policies differ. Some schools reject applications outright, others offer conditional admission with required English coursework, and some review it holistically alongside the rest of your file. Contact the admissions office directly if you're close to the minimum and unsure how it will be handled.
Let's Get Your Application Moving
Choosing the right test is a checklist item you can finish this week, and finishing it early frees up real energy for essays and activities lists. See how GoodGoblin's process works or explore what's included when you're ready for support on the rest of your application.
Sources
- TOEFL iBT Test · ETS
- IELTS · IELTS
- Duolingo English Test · Duolingo
