It can be quite stressful to handle your study schedule for English proficiency tests, especially when university deadlines are approaching and you want to know exactly when can I take Duolingo test after payment. Unlike other tests that require weeks of advance scheduling, the Duolingo English Test (DET) is quite flexible to suit the needs of modern students. In this extensive guide, we will walk you through the immediate “on-demand” testing system, the essential 21-day validity period that you must adhere to, as well as troubleshooting tips for common payment and technical delays.
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Once you’ve paid, you can take the Duolingo English Test (DET) right away. It is available to take whenever you want (24/7) and there are no fixed dates or times, just purchase a credit and go whenever you are ready. You’ll have 21 days to complete the exam after your purchase. After 21 days, the credit for the test will expire and cannot be used or refunded.
The Duolingo English Test (DET) is a modern, computer-adaptive proficiency test available 24/7 as opposed to the traditional in-person testing centers. Therefore, it is a better option for applicants planning to apply in 2026. Total time to complete the entire test is around 1 hour, and certified results will be available in less than 48 hours.
The test is organized with three sections to evaluate abilities and compliance to measure security:
A test bundle is a cost-effective option for students intending to sit for the exam a minimum of two times. When purchasing the two of the “2 TESTS” purchases, you will get two test credits with a discount. Upon completing payment, the available credits will show on your DET homepage.
Once you buy a bundle, timing is important. You must use your credit to take your first test within 21 days of the date you purchased your bundle. Then, you will have an additional 21 days from the date of your first test to complete your second test.
Finally, all bundles and credits are non-refundable. You cannot transfer credits to a different account. Also, you may not have been entitled to purchase a bundle if you have violated any standard frequency policies. Duolingo may restrict bundle purchases for accounts with a history of breaking rules.
In order to protect the integrity of the exam process, Duolingo has set certain maximum limits on your order and examination frequency. You are allowed to order the Duolingo English Test (DET) and take it up to three times within a 30-day period total (rolling). The 30-day period is determined by the first order made in that specific month, so keeping track of your order activity would be important if you want to have multiple attempts to get your desired score.
Furthermore, the system does not permit you to access multiple credits all at once. You must wait to receive your certification for the previous test before you can take another test due to this constraint. So, since every credit can only be used once and is valid for 21 days after purchase, this ensures that those who have taken a test have plenty of time to assess how well they did on their previous attempt, which will allow for better preparation for the next test.
Sometimes, you’ve paid the fee, but the “Start Test” button remains grayed out. Here is how to troubleshoot:
Transacting internationally can be more complicated because of so many different layers of banking and currency conversion involved, not to mention that it can take anywhere from 30 minutes to 2 hours for the transaction to finish processing.
Check your email first for your official Duolingo payment receipt. If you have that receipt but cannot click “Start Test” button, your card likely still has that transaction marked as pending in your bank account. Try waiting at least one hour and refreshing your Duolingo dashboard.
Make sure that the bank you are trying to send money from allows you to make foreign or cross-border payments with your debit card, as some banks prevent foreign/cross border transactions by default to reduce their risk of fraudulent activity.
By clicking the “Sign in with Google,” many users unintentionally make a second account. To correct the situation, confirm that the email on your receipt matches the current account you are signed into in the DET dashboard. If you used an institutional or school email to make a payment, and you are logged in with a personal Gmail account, the credit will not show. Once you are completely signed out, log back into your account using the same credentials as noted on your receipt.
Many people think they can use a browser like Chrome or Safari to take the test, but that isn’t correct. However, you will be required to purchase and use an official version of the “Desktop Application” to take the DET as of 2026. You will only see an option to purchase the app through the website but you need to have access to your downloaded app on either Windows or macOS to take your actual test. Your operating system will also need to give both “screen recording” and “microphone” permissions for the app in advance before starting it up from your computer.
If your last testing session was declared invalid due to a rule violation (i.e. you looked away from the camera, technical failure, etc.) and you’ve used up all your chances before to test successfully (not getting certified) you may be using a “Retest” credit.
In this case, check your “My Tests” tab on the dashboard to know if your last test was marked as “Invalid” and you have remaining attempts under that credit. Typically, you receive three attempts per test credit.
Flag Status: If you see “Your Account has been Blocked” when you log in, you have no access to any credit type; therefore, you can’t use that “Retest” credit. You need to file an appeal within 72 hours of being notified of the invalidation to request credit back to your account. If you don’t see an option that says “Appeal This Result” under the “My Tests” tab, you likely do not qualify for an appeal and would need to purchase a new credit.
In order to make sure that your payment has successfully gone through prior to taking the Duolingo Test and to earn a passing score on your first attempt, please review this checklist before taking the Duolingo Test.
Government ID: A valid government issued photo identification card (Current Valid Passport or Current Valid Driver’s License) must be presented as an original physical document, not a photocopy of the document or an electronic copy of the document.
Lighting: A bright enough room for you to have a clear enough view of yourself and identification is necessary.
You need to be in a private/quiet area with no people or pets present within the field of view of either the test camera or you when you take the test. If there is even one instance where a person other than you or a pet could potentially be seen or heard in your test camera’s range, your test will be considered invalid.
Also, you will need to have nothing on your desk while taking the test. No books, magazines, cell phones, etc.; You can use your cellphone if you want, as a secondary test camera. If you use a cellphone as a secondary test camera, you must not use headphones during the test. Only use the computer microphone and computer speakers during your test.
Use a wired Ethernet connection if possible; if using Wi-Fi, ensure a minimum speed of 2 Mbps. To maximize system resources, terminate any apps running in the background that could impact your connection, for example Google Chrome, Microsoft Edge, Zoom, Skype, and anything that records or showcases your screen(s). Finally, you need to verify that the software you are using is authorized to access your cam, mic, and screen recordings.
You need to make sure you do not have an ”Invalidated” or ”Technical Failure” too close to an application deadline. You can do the following to get results faster and with less risk:
The Duolingo English Test stands out as the most flexible and student-friendly proficiency exam in 2026. Knowing exactly when can I take the Duolingo test after payment helps you gain full control over your application timeline without the hassle of booking advance slots.
Understanding when you are able to take the Duolingo Exam will help to keep track of your application timeline, as well as eliminate much of the hassle involved in trying to book your test before receiving a score. By following the steps above and preparing for the test, you can achieve the score required to get into the school of your choice.
No. You cannot take the actual exam on a phone or tablet. However, as of 2024, you must have a smartphone to act as a secondary camera. The phone records your environment from the side; it is not used to answer test questions.
No, refunds cannot be obtained if you do not take DET test within the set 21-day period after the initial scheduling. Test Fees are nonrefundable; any session that was scheduled in that period and was not completed or was cancelled will be forfeited for all payment purposes. As a result, the 21-day expiration period has been established and cannot be extended on any occasion.
If your internet cuts out during the Duolingo English Test (DET), the session will likely pause, and you should attempt to reconnect immediately. If the disconnection lasts a long time or causes too much damage to the internet service, you may have to retake the entire test again at a later time. In the case of a technical failure out of your control, you can contact Duolingo’s Help Desk within twenty-four hours of your session to begin the process of obtaining a new testing credit.
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