IAT 2026 Seat Allotment (Out for Round 4): Dates, Allotment List PDF, Seat Acceptance Fee (Category-Wise)

The IAT 2026 Seat Allotment List (Round 4) was released on August 18, 2026, on the official IISER admission portal/website – iiseradmission.in. To check the list, candidates must visit this portal, click on the "IAT Round 4 Seat Allotment" option and enter their login credentials (IAT 2026 username and password). Candidates can check the IAT 2026 opening and closing ranks for rounds 1, 2 and 3 of counselling in this blog.

The deadline to pay the Seat Acceptance Fee (SAF) for the IAT 2026 Counselling Round 4 is August 20, 2026, 12 PM.

The IAT 2026 exam was conducted on June 7, 2026, for admission to undergraduate science, research, and specific engineering courses offered by the participating institutes.

During the IAT 2026 counselling process, candidates must choose the institutes and programmes they wish to pursue. These institutes and programmes should be arranged in order of preference, from the first choice to the last. Details of the institute and programme allotted to the candidates will be announced through the IAT 2026 Seat Allotment Process on the official website, iiseradmission.in.

Many students appearing for the exam for the first time find it difficult to understand this process. Therefore, this SciAstra blog simplifies it by providing detailed information about the IAT 2026 Seat Allotment, including the seat allotment schedule, the steps involved in the process, and the IAT 2026 opening and closing ranks.

Note: Admission to the BS-MS IISER Pune academic programme is now closed with Round 3. No further offers will be made under any circumstances in this program. All aspiring candidates are requested to choose between the options, keeping this fact in mind. 

What is IAT Seat Allotment?

IAT Seat Allotment is the process through which seats are allocated to candidates in the participating institutes based on their performance in the IISER Aptitude Test (IAT) and the preferences they submitted during counselling.

After completing the counselling registration and choice-filling process, the admission authority prepares a merit list using candidates' IAT ranks. Seats are then allotted according to several factors, including the following:

• The candidate's IAT rank.

• The category under which the candidate has applied.

• The candidate's preferences of institutes and programmes were filled during counselling.

• The availability of seats in the participating institutes.

• The IAT seat allotment results are generally released in multiple rounds.

Candidates who receive a seat offer must log in to the admission portal, accept the allotted seat within the specified deadline, and pay the required Seat Acceptance Fee to confirm their admission. Those who are not satisfied with the allotted seat may choose to participate in subsequent rounds of seat allotment, subject to the counselling guidelines.

Latest Updates: 

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IAT Seat Allotment List 2026 Release Date

The all the dates for IAT 2026 seat allotment will be released soon on the official IISER admission website – iiseradmission.in. Meanwhile, candidates can check the following dates for the allotment process below:

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IAT Seat Allotment 2026

The IAT 2026 seat allotment process has been started. The IAT 2026 seat allotment list for round 1 was released on July 24, 2026. The allotment list for other institutes will be released soon on the official IISER admission portal - iiseradmission.in.

To be considered for the seat allotment process, candidates must complete the following steps:

1. Counselling Registration:

• Visit the official IISER admission website, iiseradmission.in, and click on the "Registration for Counselling Process" option.

• Next, select "Click Here to Access Application". Register or log in using your User ID, Password, and the displayed Captcha code.

2. Select Preferred Institutes and Programmes: 

• Click on the "Submit Your Preferences" option and then select "Click Here to Fill". 

• Access the "IISER Preference" section and choose your preferred institutes and programmes in the order of preference, starting from your most preferred choice and ending with your least preferred one.

3. Enter Bank Account Details: 

• Provide the bank account details from which you intend to pay the Seat Acceptance Fee (SAF).

• The required information includes the account number, branch name, bank name, and IFSC code.

• After entering the details, tick the declaration checkbox and click on the "Submit" option to complete the counselling registration process.

Note: Candidates can edit their IISER preferences and other submitted details by logging in to the counselling registration portal and selecting the "GO TO THE PREFERENCE FORM TO EDIT" option.

4. IAT 2026 Seat Allotment:

• Once the counselling registration process is completed, the seat allotment results will be released round-wise.

• Candidates can check their allotment status by logging in to the "Admission Offers" portal using their User ID and Password.

5. Exercise the Freeze/Float Option:

• After logging in, candidates will be able to view the institute and programme allotted to them.

• Candidates who wish to accept the allotted institute and programme must select the "Freeze" option.

• Candidates who do not wish to accept the allotted seat but want to be considered for a better option in subsequent rounds must select the "Float" option to participate in further rounds of counselling.

6. IAT 2026 Seat Acceptance Fee (SAF):

• Candidates who choose the "Freeze" option must pay the Seat Acceptance Fee (SAF) online through net banking, UPI, credit card, or debit card to confirm their admission.

The details about the SAF are available below:

How to check IAT 2026 Seat Allottment?

Candidates can follow the steps given below to check their IAT 2026 seat allotment status:

1. Visit the official IAT admission website, iiseradmission.in.

2. Click on the "Admission Offer" option.

3. Log in using your User ID and Password.

4. Click on "Submit Your Preference" and then select the "Edit/View" option.

5. Access the "Decision Making" section.

6. Click on "Click to View Allotted Seat".

After completing these steps, candidates will be able to view the following details related to their seat allotment:

• The preference number and counselling round in which the seat was allotted

• The allotted programme (course)

• The allotted category, i.e., the category under which the seat has been allotted

IAT 2026 Seat Allotment Links (Round-Wise)

The round-wise seat allotment list for IAT 2026 will be provided below:

IAT 2026 Seat Allotment: Opening & Closing Ranks

The opening and closing ranks for admissions to the courses offered through IAT 2026 are mentioned below:

IAT 2026 Counselling: Round 1 Closing Ranks

Check out the IAT 2026 closing ranks for the round 1 of counselling:

IAT 2026 Counselling: Round 2 Closing Ranks

Check out the IAT 2026 closing ranks for the round 2 of counselling:

IAT 2026 Counselling: Round 3 Closing Ranks

The IAT 2026 closing ranks for the round 3 of are mentioned below:

Note: The closing ranks shown are Overall Ranks. “--” indicates that no closing rank was reported for that category/program.

IAT 2026 Counselling: Round 4 Closing Ranks

The IAT 2026 closing ranks for the round 4 of are mentioned below:

IAT 2026 Seat Allotment Opening & Closing Ranks (Courses-Wise

Check out the institute-wise opening and closing for IAT 2026 seat allotment below:

IIT Madras: BS (Chemistry) and BS (Medical Science and Engineering) courses

Candidates can check the IAT 2026 Round 1 opening and closing ranks for BS (Chemistry) and BS (Medical Science and Engineering) courses offerd through the exam below:

IAT 2026 Institute-Wise Seats

A total of 2,343 seats are available for admission through IAT 2026 across all participating institutes. The institute-wise seat matrix is provided below for candidates' reference.

Conclusion

The IAT 2026 seat allotment process is a crucial step in securing admission to IISERs and other participating institutes. Since seat allocation depends not only on a candidate's IAT rank but also on their category, preferences, and seat availability, understanding each stage of the counselling process is essential. From counselling registration and choice filling to exercising the Freeze/Float options and paying the Seat Acceptance Fee, candidates must carefully complete every step within the prescribed deadlines. The details about these processes are mentioned in this SciAstra blog.

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