IAT 2026 Application Fee: The IAT 2026 application process will start on March 5, 2026 on the official IISER Aptitude Test website — iiseradmission.in. Candidates who wish to apply for IAT 2026 must know the application fee as per their respective category and follow the correct steps. This approach can help them avoid problems during the application process.

To help candidates with this, this SciAstra article provides details about the IAT 2026 application fees for the General, SC, ST, and OBC and other categories.

IISER Aptitude Test 2026 Overview

All aspirants who wish to apply for the IISER Aptitude Test (IAT) 2026 can check the exam overview below to get all the important details about it.

Features

Details

Exam Name

IISER Aptitude Test (IAT), IISER Entrance Exam

Exam Organising Institute

One of the IISERs

Exam Level

Undergraduate Level

Courses Offered

  • 5 year BS-MS dual degree

  • 4 year BS degree

  • 4 year BTech degree

Exam Mode

Online

Exam Frequency

Once a year

Registration Fee

Gen/OBC/OBC-NCL/EWS - INR 2,000

SC/ST/KM/PwD - INR 1,000

Type of Question

Multiple Choice Question (60 questions)

IAT Marking Scheme

  • Each correct response = +4 marks

  • Each incorrect response = -1 marks

  • Each unttempeted question = 0 mark

Official Website

https://iiseradmission.in/

Also Read:

IAT 2026 Application Fees

The IAT 2026 application form will be available online from January 5, 2026, at iiseradmission.in. The last date to fill out the application form and pay the application fee is April 6, 2026.

The IAT 2026 application fees are different for candidates belonging to different categories. The fees for unreserved male candidates and those belonging to SC, ST, EWS, and OBC categories are mentioned below.

IAT 2026 Application Fees (Category-Wise)

Category

IAT 2026 Application Fee

Candidates belonging to General, EWS, OBC and OBC-NCL Categories

INR 2,000

Candidate of SC/ST category

INR 1,000

Candidates of person with disability (PwD) category

INR 1,000

Candidates applying under Kashmiri Migrants/Kashmiri Pandits/Kashmiri Hindu Families (Non-Migrant) category

INR 1,000

Candidates applying under Foreign National Category

INR 12,000

Candidates of Divayngjan category (both males and females)

INR 700

Also Read: 

IAT 2026 Exam Pattern

IAT 2026 Dates

IAT 2026 Application Fees: Payment Method

The complete application process for IAT 2026 is online. Therefore, candidates will be able to submit the IAT 2026 application fee only in online mode using a debit card, credit card, or net banking.

To pay the fees, they can use debit or credit cards or UPI.

To pay the IAT 2026 application fee, candidates need to follow these steps:

  1. Go to the official IAT 2026 website — iiseradmission.in.

  2. Click on “New Registration” and fill in the required details to create a candidate registration account.

  3. You will receive login details via email and SMS.

  4. Go to the “Login” option and log in using the provided credentials.

  5. Fill out the application form.

  6. Upload your passport-size photograph and scanned signature.

  7. Pay the application fee using a debit card, credit card, or UPI.

  8. Save and submit the form.

  9. Download the confirmation page as a PDF.

IAT 2026 Application Fee: Refund Policy

The application fee for IAT 2026 is non-refundable. Once you submit the fee, it will not be refunded under any circumstances, even if you do not appear for the exam.

IAT 2026 Application: Last Date for Fee Submission

The last date to submit the IAT 2026 application fee is April 13, 2026. Check out all the important dates related to the IAT 2026 application process and other events:

Event Name

Dates

IISER 2026 Notification

February 7, 2026

IISER Aptitude Test Application Form 2026

March 5, 2026 - April 13, 2026

IISER Aptitude Test Application Correction Window

April 13, 2026 to April 15, 2026

IISER Aptitude Test Admit Card 2026

May 24, 2026

IISER Exam 2026 (IISER Aptitude Test 2026)

June 7, 2026

IISER Provisional Answer Key 2026

The same day after the exam (Expected)

IISER Final Answer Key 2026

Third week of June 2026 (Tentative)

IISER 2026 Result

Fourth week of June 2026 (Tentative)

IAT 2026 Counselling

July 2026 (Tentative)

IAT 2026 Application Correction

After the conclusion of the IAT 2026, candidates will be allowed to correct details in their application form through the correction window facility. To access this facility, candidates will need to visit the official exam website and log in to their candidate account.

The IAT 2026 application correction window will remain open from April 13, 2026, to April 15, 2026 at iiseradmission.in.

During this period, candidates will be able to edit the following details in their application form:

Details allowed to be edited in IAT 2026 Application Form

Personal Details

  • Father’s Mother

  • Mother’s Name

  • Category (only for General and OBC)

Present Address-related Details

  • State/UT of Domicile

  • District/City

  • Pin Code

  • Address

  • Marking permanent address same as the present address

  • Town/City

Details of Guardians

  • Guardian’s mobile number

  • Relationship of guardian with you

Educational Details for 10th

  • Year of passing

  • Percentage

  • Board/Council

Educational Details for 12th

  • Year of passing

  • Percentage

  • Board/Council

Uploaded Documents

  • Changing scanned copies of passport-size photo and signature

Take IAT 2026 Mock Test

SciAstra has developed an IAT Mock Test that simulates the actual test conditions and replicates the IAT exam pattern. This helps candidates to be prepared for the real IISER Aptitude Test.
The SciaAstra team has recently launched a FOCUS test series, which will emphasise Full Online Controlled Understanding and Simulation, helping candidates experience the real-time environment of the IISER aptitude test 2026.

The IAT 2026 FOCUS mock test is designed based on the official exam pattern, and the difficulty level is determined through an in-depth analysis of previous years’ question papers. Candidates will get Unit-wise, Half-length, and Full-length test series, covering all chapters to assess their domain understanding, cognitive skills, and analytical abilities as per the IISER 2026 syllabus.

Attempt the IISER Exam 2026 Test Series to check your exam preparation level to get admissions to the IISERs, IISc and IIT Madras here:

IAT FOCUS Test Series

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Conclusion

In conclusion, understanding the IAT 2026 application fee structure and important deadlines is essential for a smooth registration process. Since the entire application procedure for the IISER Aptitude Test is conducted online, candidates must carefully check their category-wise fee, keep the required documents ready, and complete the payment before the last date. As the application fee is non-refundable, it is crucial to review all details before final submission.