JEE Advanced AAT Registration 2026 – Step-by-Step Process

AAT registration is one of the shortest and most time-sensitive steps in the entire JEE Advanced admission cycle. It opens only for candidates who have already secured a valid qualifying rank in JEE Advanced, and the window to register is typically just one to two days. Because of how compressed this timeline is, candidates who are even remotely considering a B.Arch program at an IIT should plan to check the JEE Advanced portal the moment the result is declared, rather than waiting a few days to decide.

Registration happens entirely on the official JEE Advanced website, jeeadv.ac.in — there is no separate AAT-specific website. Candidates log in using the same credentials (registration number and password) they used for JEE Advanced registration and application. Once logged in, an AAT registration link or tab becomes visible only to those candidates who have qualified, meaning candidates who did not clear JEE Advanced will not see this option at all.

Step-by-Step Registration Guide

Registration Fee

AAT registration typically involves a separate, modest fee in addition to whatever was paid during JEE Advanced registration. Fee amounts can differ by category (General/OBC-NCL/EWS versus SC/ST/PwD) and have historically been kept relatively low compared to the main JEE Advanced application fee, since it is a single additional test rather than a full exam application. The exact amount should always be confirmed on the official portal at the time of registration, since fee structures are revised periodically.

Documents and Details Needed

Because AAT registration is layered on top of an existing JEE Advanced account, most of the heavy documentation work is already done. Candidates generally do not need to re-upload photographs, signatures, or category certificates, since these were already verified during JEE Advanced registration. What is usually required is simply confirming existing details, selecting an exam centre preference if applicable, and completing the online fee payment. Candidates should keep a digital copy of their JEE Advanced scorecard, category certificate (if applicable), and a valid photo ID handy in case the portal requests any re-verification.

Common Mistakes to Avoid

• Waiting too long after the result to check the AAT registration link, and missing the short window
• Not reading the AAT information bulletin, and missing centre-specific or format-specific instructions
• Registering without genuine interest in B.Arch, which wastes the fee and an exam slot
• Forgetting to download and save the registration confirmation and, later, the admit card
• Assuming AAT registration is automatic just because you qualified JEE Advanced — it is not; it always requires an active, separate registration step

After Registration

Once registration is complete, candidates should watch the JEE Advanced portal for the AAT admit card release and any centre or reporting-time updates. The exam itself is usually scheduled only a few days after registration closes, so this is also the window in which candidates should be doing their final, focused practice on freehand sketching, geometric construction, and spatial visualization exercises, alongside brushing up on architectural awareness.