What Is an AO Code, and How Do You Find Yours?

What is an AO code made of?

An Assessing Officer (AO) is the Income Tax Department officer in charge of a set of taxpayers. The e-Filing portal calls this officer the Jurisdictional Assessing Officer (JAO). The country is split into units called wards and circles. Each is headed by an Income Tax Officer (ITO), an Assistant Commissioner (ACIT) or a Deputy Commissioner (DCIT).

The AO code points to one of these officers. The Income Tax Department and the instructions to Form 93 say it has four parts:

The example is the Air Force row in Protean's AO search (ITO Ward 42(2), Delhi). It shows the format only. Always copy your own code from the current list, because codes can change.

When do you need your AO code or AO details?

The e-Filing portal's FAQ says you usually don't need to contact your AO if your filing has no issues. You need the code or the officer's details in these cases:

• A new PAN application. Part D of Form 93 (Indian citizens) and Form 95 (foreign citizens) asks for the AO code. New PAN forms 93–96 explained. Not sure which form fits you? Use our PAN form finder.
• Surrendering a duplicate PAN. Your AO's details may be needed for this. How to surrender a duplicate PAN.
• A deactivated, deleted or wrongly marked PAN. These need an officer's decision. See inoperative vs deactivated vs cancelled PAN.
• A wrong PAN–Aadhaar link that has to be removed. See PAN–Aadhaar linking problems.
• Updating your residential status, for example after becoming an NRI. See PAN for NRIs.
• A grievance. The e-Filing grievance form has an AO category. PAN customer care and grievances.

Which address decides your AO code?

Protean's AO search gives these rules. They decide which city you search in.

How big cities split their AO codes

A small town may have one or two codes. A big city has hundreds. In Protean's Delhi list, rows are split in several ways:

• by the first letters of your name (the row says which name it means);
• by locality or municipal ward;
• by employer type, such as bank employees and pensioners, or employees of private employers;
• by profession, such as legal, engineering or architecture.

Read the description column and pick the row that fits you. Company PANs follow the same idea; see PAN for companies, firms, trusts and HUFs.

How do you pick an AO code for a new PAN application?

The online application forms on Protean and UTIITSL help you choose the code by city. You can also look it up first in their free lists. Form 93's own instructions say the details are also available at Income Tax Offices and PAN service centres.

1. Decide which address counts

   Use the address rules table. A salaried person in Pune who lives in a nearby town searches Pune, where the office is.

2. Open an AO code search

   Protean's AO code search is linked from its PAN AO code page (tinpan.proteantech.in); the search itself opens on tin.tin.proteantech.in. UTIITSL's page is Search For AO Code Details (on utiitsl.com). Both are free to use.

3. Choose your city

   On Protean, click the first letter of your city, then the city name. On UTIITSL, choose Individual (P) or Non-Individual, then open the right list: International Taxation, Non International Taxation or Defence personnel.

   You'll know it worked when a table appears with the columns Area Code, AO Type, Range Code and AO No.

4. Match the description

   Read each row's description: name letters, locality, employer or profession. Pick the one row that fits you.

   If no row fits, or your town isn't listed: ask the PAN centre or your local Income Tax Office. Don't guess.

5. Copy all four parts into the form

   Fill Area Code, AO Type, Range Code and AO Number exactly. On Form 93 this is item 16 in Part D; on Form 95 it is item 17. For the rest of the form, see how to apply for a new PAN.

   You'll know it worked when the form accepts the code and moves to the next section.

How do you find the AO of a PAN you already have?

Use the free Know Your AO service on the e-Filing portal. The user manual calls the quick link Know Your JAO, so look for either name. Registered and unregistered users can both use it.

1. Open Know Your AO and enter your details

   Go to incometax.gov.in. Under Quick Links on the home page, click Know Your AO (or Know Your JAO). Enter your PAN and a mobile number, then click Continue. The portal's FAQ says any valid mobile number works; it need not be the one registered on e-Filing.

2. Validate the OTP

   Enter the 6-digit OTP and click Validate. The OTP is valid for 15 minutes, and you get 3 attempts.

   If the OTP doesn't come: wait for the countdown to end and click Resend OTP. Check that you typed the mobile number correctly.

3. Read and save your AO details

   The result shows the Area Code, AO Type, Range Code, AO Number, jurisdiction, the office address and the officer's email ID. It also shows your PAN's status.

   You'll know it worked when you see a ward or circle name with an address and email. Save a screenshot for letters.

Can you see your AO after logging in to e-Filing?

Yes. The e-Filing My Profile user manual lists a Jurisdiction Details option. Log in, open My Profile and click Jurisdiction Details to view it. The manual describes viewing only; it gives no steps to change your AO there.

Don't have a login? Know Your AO works without one. If you don't know your PAN itself, see how to find your PAN number.

How do you move your PAN to a new AO after shifting?

The e-Filing portal's FAQ says that if you move your permanent or residential address to another state, your PAN must be migrated to the AO for the new area. We found no online form for this on the portal. The FAQ describes a written process.

1. Check your current AO

   Use Know Your AO and note the ward or circle, address and email. Then search the AO code lists for your new city to see which office covers you now.

2. Write to your current AO

   Give your name, PAN, old and new addresses, and say you want your PAN moved because of the address change. Attach proof of the new address. Keep a copy, and a receipt or email record.

3. Apply to the new AO as well

   The FAQ says you also apply to the new AO, asking them to request the change from your existing AO. The current AO then forwards the request to the Income Tax Commissioner, whose approval completes the move.

4. Check that the move is done

   The portal's FAQ says to check the current AO under Know Your AO. No login is needed. We found no official timeline, so check every few weeks.

   You'll know it worked when Know Your AO shows the new ward or circle and its address.

   If nothing changes for a long time: follow up with your old AO's office, or raise an e-Filing grievance in the AO category.

What can go wrong, and how do you fix it?

Bottom line

Applying for a new PAN? Pick the AO code from the free Protean or UTIITSL list, using your office address if you earn salary or business income. Already have a PAN? Know Your AO on the e-Filing portal shows your officer in a few minutes. After moving state, ask your AO in writing to move your PAN. For help, call e-Filing on 1800 103 0025 or Protean on 020-27218080.