NEET UG uses one marking rule for every question: +4 for a correct answer, −1 for an incorrect one, 0 for an unanswered one. This guide explains what that means for your choices in the exam hall, with the arithmetic shown. It is based on the NEET (UG) 2026 information bulletin. NEET UG 2027 dates had not been announced as of 9 October 2026, so check the 2027 bulletin when it is released.
What is the NEET UG exam pattern?
| Subject | Questions | Marks |
|---|---|---|
| Physics | 45 | 180 |
| Chemistry | 45 | 180 |
| Biology (Botany and Zoology) | 90 | 360 |
| Total | 180, all compulsory | 720 |
All questions are multiple choice with four options and a single correct or best answer. There are no numerical-answer questions and no optional section. The 2026 exam was a 3-hour, pen-and-paper (OMR) test, in a single shift. In 2026, the 3 May exam was cancelled and a re-examination was held on 21 June 2026, also in pen-and-paper mode.
More detail is on our NEET UG exam pattern page.
What is the NEET marking scheme?
| Response | Marks |
|---|---|
| Correct, or most appropriate, answer | +4 |
| Any incorrect option marked | −1 |
| Unanswered | 0 |
Special cases from the 2026 bulletin:
- If a question has more than one correct option, +4 goes to anyone who marked any of the correct options.
- If all options are correct, +4 goes to everyone who attempted it.
- If a question is wrong, has no correct option or is dropped, +4 goes to all candidates who appeared, whether or not they attempted it.
Because NEET is a single-shift paper, there is no normalisation: ranks are based on marks.
When is a guess worth it in NEET?
Use expected value: the average outcome of a decision if you made it many times.
- Expected value of a guess = (chance right × 4) − (chance wrong × 1)
With four options:
| Situation | Chance right | Expected value |
|---|---|---|
| Blind guess | 25% | (0.25 × 4) − (0.75 × 1) = +0.25 |
| One option eliminated | about 33% | (1/3 × 4) − (2/3 × 1) = about +0.67 |
| Two options eliminated | 50% | (0.5 × 4) − (0.5 × 1) = +1.5 |
| Break-even | 20% | 0 |
The break-even point is a 1 in 5 chance. Above it, a guess is worth more than a blank on average.
Why not guess blindly, then?
On average, even a blind guess comes out slightly ahead. But “on average” hides a lot of risk. Over 10 completely blind guesses, the expected gain is +2.5 marks, yet roughly 1 time in 4 you would end up with fewer marks than if you had left all 10 blank. Over 10 guesses where you had genuinely ruled out two options each time, you would end up behind only about 1 time in 100.
So: blind guessing is close to a coin toss. Guessing after real elimination is a good bet.
When should you not attempt a NEET question?
Leave a question blank when:
- You cannot rule out any option for a clear reason. “It feels unlikely” is not elimination.
- Two options look right and you have no way to decide, but your confidence that the right answer is among them is shaky. If you might have eliminated the correct option, your “50-50” may be much worse.
- Time is running out and you would be filling bubbles without reading. A rushed, unread guess is a blind guess.
And attempt it when you can say why at least one option is wrong.
Do wrong answers matter beyond the −1?
They can, through tie-breaks. In 2026, students with equal marks were separated in this order:
- Higher Biology (Botany and Zoology) marks
- Higher Chemistry marks
- Higher Physics marks
- Lower ratio of incorrect to correct answers across all subjects
- The same ratio in Biology, then Chemistry, then Physics
- If still tied, a random process overseen by an independent expert committee
With nearly 20 lakh candidates (19,99,895 appeared in 2026), equal marks are common. Step 4 means needless wrong answers can cost you places even when your score is the same. That is a small effect next to the marks themselves, but it is one more reason to avoid blind guesses.
How does OMR change things?
In a pen-and-paper exam, marking the sheet is a step of its own:
- Mark carefully. If you fill the wrong bubble, that option is what gets scored, and a wrong option costs −1.
- Leave time to transfer answers if you work in the booklet first. Rushing the OMR at the end creates errors.
- Do not leave all your guessing to the last minute. Decide on each question in a calm moment, not in a panic.
If NEET’s mode changes in a future year, check the official bulletin for how answers are recorded.
How should you practise this?
Guessing well is a skill you build in mocks:
- After each mock, mark which answers were sure, guessed after elimination and guessed blind.
- Check how often your eliminated guesses come out right. If your 50-50 calls are right much less than half the time, your elimination is less reliable than it feels.
- Track how many marks you lose to wrong answers per test. Cutting that number is one of the fastest ways to raise a NEET score.
Our guide on how to analyse a mock test explains how to sort those errors by cause. To understand what score you need to qualify, read NEET qualifying percentile, explained, and see the NEET UG cutoff page. Free chapter-wise practice and a NEET sample test are on NEET Notes.
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