GMAT · Guides · October 22, 2026 · 8 min read

How to prepare for the GMAT: a step-by-step study plan with 8- and 12-week schedules

To prepare for the GMAT, take a free official practice exam first to find your starting score, set a target from your schools’ medians, and then follow a schedule of 8–12 weeks at 8–12 hours a week. Spend the first half on fundamentals and the methods for each question type, and the second half on timed sets and full mocks. Keep an error log from day one: reviewing your mistakes is what moves the score, not the number of questions you solve.

Step 1: take a diagnostic

Before buying anything, take Official Practice Exam 1 from GMAC’s free Starter Kit (it includes two full practice exams and a set of practice questions). Take it under real conditions: 2 hours 15 minutes, one optional 10-minute break, no calculator in Quant, no pausing.

What to record:

• your total score and the three section scores (Quant, Verbal, Data Insights);
• which question types cost you most (the score report breaks this down);
• whether you ran out of time, and in which section.

Save Practice Exam 2 for the middle of your preparation, so you have a second clean measurement.

Step 2: choose a target score and a test date

• Target. Use the median of your top-choice school plus 10–20 points. M7 programmes report medians of 675–690, ISB around 669–675. See what is a good GMAT score for the percentile table.
• Gap. The difference between your diagnostic and your target decides the length of the plan. Up to about 50 points: 8 weeks is often enough. 50–100 points: plan on 12 weeks. More than 100: 3–5 months, starting with fundamentals.
• Date. Book the exam early, at least two to three weeks before your first application deadline, so you have time for a retake. You can retake after 16 days, up to five times in 12 months (as of October 2026; check mba.com).

Step 3: pick a schedule

8-week plan (about 10 hours a week)

12-week plan (about 8–10 hours a week)

If you work full time, a typical week is one hour on four weekdays and a longer block of three to four hours at the weekend.

Step 4: study by section

Quant fundamentals

GMAT Quant covers four areas: value, order and factors (number properties, divisibility, remainders, exponents); algebra, equalities and inequalities; rates, ratios and percents; and statistics, sets, counting, probability and sequences. There is no geometry beyond coordinate graphs in algebra, and no calculator.

• Relearn the rules before you drill: divisibility, exponents, absolute value, percentage change.
• Practise mental arithmetic and estimation daily for 10 minutes.
• When a solution takes over two and a half minutes, look for a shortcut: testing numbers, working backwards from the answer choices, or estimating.

Data Sufficiency method

Data Sufficiency appears in Data Insights and always has the same five answer choices. Learn the process once and apply it every time:

1. Decide what you would need to answer the question. Is it asking for one value or for a yes/no?
2. Look at statement (1) alone. Sufficient or not? Eliminate answer choices accordingly.
3. Look at statement (2) alone, forgetting statement (1).
4. Only if neither works alone, combine them.
5. Do not finish the calculation once you know whether you could.

Test edge cases: negative numbers, zero, fractions. A “yes” for one value and a “no” for another means not sufficient. The Data Sufficiency guide has worked examples.

Critical Reasoning question types

Group CR questions by what they ask: find the assumption, strengthen, weaken, evaluate, explain a discrepancy, find the flaw, infer, complete the argument, or describe the role of a statement. For each one:

• read the question stem first, so you know what you are looking for;
• find the conclusion and the evidence, then the gap between them;
• predict the answer in your own words before reading the choices;
• eliminate choices that are out of scope, too extreme or do the opposite of what was asked.

More in the Critical Reasoning guide.

Reading Comprehension strategy

• Read the passage once, actively: after each paragraph, note in a few words what it does (introduces a theory, gives a counter-example).
• Know the main idea and the author’s attitude before you look at the questions.
• For detail questions, go back to the text; do not answer from memory.
• Reading English articles on science, economics and history for 20 minutes a day helps more than extra RC sets if reading speed is your problem.

Data Insights practice with the calculator

• Learn each format until the interface no longer surprises you: sortable tables, drop-down statements, two-column answers, tabs with several sources.
• Use the on-screen calculator only when estimation is not enough; it is slower than it looks.
• Remember there is no partial credit: check every part of a multi-part question before you confirm.
• Read the headers, units and footnotes of tables and charts before the questions.

Step 5: keep an error log

For every question you get wrong, or right by guessing, write down:

Review the log every week. Patterns in the “why” column tell you what to study next. Redo old mistakes a week later without looking at the solution.

Step 6: practise timing

• From week 2 or 3, do sets of 10–15 questions with a timer.
• Set a personal limit, for example three minutes, after which you guess and move on. Unanswered questions are penalised, so never leave the end of a section blank.
• Use the bookmark feature in practice exams, and remember you can change at most three answers per section on the review screen.
• Try different section orders in your mocks and choose the one that gives you the best score.

Step 7: official materials and mocks

Official GMAC materials are the closest to the real test, as of October 2026:

Check current prices on mba.com. Use the Official Guide for practice by question type and keep the practice exams for full mocks. Do not repeat a practice exam you have already taken and expect an accurate score: you will remember questions.

When to take mocks: the diagnostic at the start, one at the mid-point, then one a week in the last three to four weeks. Always review a mock for at least as long as it took to take it. Take your last mock four or five days before the exam, not the day before.

If you want extra practice with the GMAT question formats outside the official materials, Nomto is building a GMAT course with its own question bank.

Step 8: the last week

• No new topics. Review your error log and the methods for each question type.
• One last mock four to five days before the test, at the same time of day as your appointment.
• Logistics. For a test centre, check the route and your ID. For the online test, check your computer, room, internet and whiteboard against the rules a few days ahead.
• Two days before: light review only.
• The day before: rest. Sleep matters more than one more set of questions.
• On the day: stick to your timing plan, guess and move on when a question takes too long, and use the optional break.

If the score is short of your target

Look at the score report by question type, add the weak areas to your plan, and book a retake two to four weeks later. Since August 2026 GMAC creates a free Superscore from your best section results across attempts, so a retake carries less risk than before. If you are still deciding which exam to take, see GMAT vs GRE or, for Indian applicants, GMAT vs CAT. And if you wonder how much work is ahead, the GMAT difficulty guide explains where the score gets hard.

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