GMAT · Guides · October 22, 2026 · 6 min read
GMAT exam rules 2026: how long the test is, calculator, negative marking, retakes and score validity
The GMAT takes 2 hours 15 minutes for 64 questions, plus one optional 10-minute break; with check-in, plan on about three hours. A basic on-screen calculator is available only in Data Insights. There is no negative marking for wrong answers, but unanswered questions at the end of a section lower your score, so guessing is always better than leaving blanks. You can retake the exam after 16 days, up to five times in 12 months, with no lifetime limit, and scores stay valid for five years.
The rules below come from GMAC’s exam policies on mba.com, as of October 2026. They apply to both the test-centre and the online exam unless noted.
How long is the GMAT?
| Part | Questions | Time |
|---|---|---|
| Quantitative Reasoning | 21 | 45 min |
| Verbal Reasoning | 23 | 45 min |
| Data Insights | 20 | 45 min |
| Optional break | — | 10 min, after the 1st or 2nd section |
| Total | 64 | 2 h 15 min, or 2 h 25 min with the break |
You choose the section order before the exam begins. Each section is timed separately: time left in one section does not carry over to the next. At a test centre, arrive early for ID checks and photographs; online, the check-in (room scan, ID and webcam photos) takes place before the clock starts.
The breakdown of what each section tests is in the GMAT syllabus and exam pattern.
Is a calculator allowed on the GMAT?
| Section | Calculator |
|---|---|
| Quantitative Reasoning | not allowed |
| Verbal Reasoning | not needed |
| Data Insights | basic on-screen calculator |
You cannot bring your own calculator, at a test centre or at home. The on-screen calculator in Data Insights handles basic operations; it is there for table and chart data, not for complex calculation. In Quant, the numbers are chosen so the work can be done by hand, which is why estimation and clean arithmetic matter so much.
Is there negative marking on the GMAT?
No. A wrong answer does not subtract points. But the GMAT is adaptive and scored on the questions you complete, so it does penalise you in two ways:
- Unanswered questions are penalised. If time runs out before you finish a section, the missing answers cost more than wrong ones would.
- Wrong answers lower the difficulty of what comes next, which limits how high your score can go.
The practical rule: never leave a question blank. If you are running out of time, make educated guesses on the remaining questions rather than letting the clock expire. There is no partial credit for multi-part Data Insights questions: all parts must be correct.
Review & Edit: changing answers
You cannot go back to earlier questions while working through a section. Instead:
- Bookmark any question you want to revisit.
- After the last question of the section, if time remains, the review screen opens.
- You can change up to three answers per section, within the same 45 minutes.
In Data Insights, the questions attached to one screen cannot be revisited before the end of the section, so review there is especially limited.
GMAT retake rules
| Rule | Limit |
|---|---|
| Waiting time between attempts | at least 16 days |
| Attempts in a rolling 12-month period | 5, test centre and online combined |
| Lifetime limit | none since October 2024 |
| After a perfect 805 | you must wait 5 years to test again |
| After a missed appointment | you can rebook after 24 hours, paying the full fee |
Every attempt costs the full fee (see GMAT exam fees). Since August 2026, schools receive a GMAT Superscore that combines your best section scores across attempts of the current exam, which makes a retake less risky: a weaker section on a second attempt does not erase a better one from the first. How to time a retake around application rounds is covered in GMAT registration and exam dates.
How long is a GMAT score valid?
A GMAT score is valid for five years from the test date. You can send it to any number of programmes during that period. Scores older than five years but less than ten can sometimes be sent on request, if you have not taken the GMAT in the last five years; whether a school accepts such a score is up to the school.
Score cancellation: no longer needed
The old GMAT asked you to accept or cancel your score at the test centre. That is gone. You see your unofficial score on screen at the end of the exam, the Official Score Report usually arrives in your mba.com account in 3–5 days (occasionally up to 20), and you decide whether and where to send it. Schools see only what you send.
You can send up to five score reports free of charge within 48 hours of the Official Score becoming available; after that, reports cost a fee. A score that GMAC itself cancels for a testing issue or a policy violation stays on your record and still counts toward the five attempts in 12 months.
Online vs test centre rules
| Test centre | Online | |
|---|---|---|
| Where | Pearson VUE centre | your home or office, alone in a closed room |
| Scratch work | 5 erasable boards and markers provided | on-screen whiteboard and/or one physical whiteboard up to about 30×50 cm |
| Proctoring | in-person staff and cameras | live remote proctor via webcam, in English |
| Break | follow the test centre staff | follow the proctor’s instructions for leaving and returning |
| Availability | test centre opening days | around the clock in many regions |
| Not available | — | mainland China, Iran, North Korea, Cuba, Sudan |
For both formats:
- Your ID must be current, government-issued, original (no photocopies), with a recent photo and your signature, and it must exactly match the name, date of birth and citizenship in your booking. Requirements vary by country; failing them means you lose the fee.
- No notes, phones or other personal devices during the exam; the full list of what is allowed is in the exam policies on mba.com.
- Personal details must be changed at least 72 hours before the exam, and appointments cannot be changed in the last 24 hours.
Online testing needs a reliable computer, webcam and internet connection; run the system check on mba.com well before exam day.
Accommodations
If you have a disability and need extra time, extra breaks or other support, apply for accommodations before you schedule. Approved accommodations are applied when you book and cannot be added to an appointment that already exists.
Common questions
How long is the GMAT with the break? 2 hours 25 minutes of exam time if you take the break.
Can I use a calculator in Quant? No. Only Data Insights has one, on screen.
Does the GMAT have negative marking? No, but blanks are penalised, so answer every question.
How many times can I take the GMAT? Five times in any 12 months, at least 16 days apart, with no lifetime cap.
How long are GMAT scores valid? Five years.
For a quick overview of the whole exam, see what the GMAT is.
GMAT™ is a trademark of the Graduate Management Admission Council (GMAC). This guide is independent and not affiliated with or endorsed by GMAC. Policies change; check the exam policies on mba.com before test day.
Also in Português (Brasil), Русский, Español