Next dueTDS / TCS
All due dates
31 OCTForm 24Q / 26Q · TDS return · Jul–Sep 2026in 11 days
7 NOVTDS / TCS deposit · Deducted in Oct 2026in 18 days
15 JANForm 27EQ · TCS return · Oct–Dec 2026in 87 days
15 JUNForm 16 · Salary TDS certificate · FY 2026-27in 238 days
20 OCTGSTR-3B · Summary return · Sep 2026due today
21 OCTTax Audit Report · Form 3CA/3CB · AY 2026-27 · extended from 30 Septomorrow
30 OCTAOC-4 · Financial statements · FY 2025-26in 10 days
11 NOVGSTR-1 · Outward supplies · Oct 2026in 22 days
Free Tool
TAN AO Code Search
Find the Assessing Officer (AO) code for your city — required for TAN (Tax Deduction Account Number) applications (Form 49B).
AO Code = Area Code + AO Type + Range Code + AO Number. Enter these 4 values in the AO Code section of your TAN application form.
AO Codes for CHENNAI
(12 records)
| Ward / Circle / Range | Area Code | AO Type | Range Code | AO No. | Copy |
|---|---|---|---|---|---|
|
TDS CIRCLE 1(1) CHENNAI
Names begins with alphabet A to H and all media cases above Rs.50 lakhs
|
CHE | CT | 151 | 1 | |
|
TDS CIRCLE 2(1) CHENNAI
Name begins with alphabet I to R
|
CHE | CT | 152 | 1 | |
|
TDS CIRCLE 3(1) CHENNAI
Name begins with alphabet S to Z
|
CHE | CT | 153 | 1 | |
|
TDS WARD 1(1) CHENNAI
Names begins with alphabe 'C' and all media cases upto Rs.50 lakhs
|
CHE | WT | 151 | 1 | |
|
TDS WARD 1(2) CHENNAI
Names begins with alphabe B, E, F, G & H
|
CHE | WT | 151 | 2 | |
|
TDS WARD 1(3) CHENNAI
Names begins with alphabe A & D
|
CHE | WT | 151 | 3 | |
|
TDS WARD 2(1) CHENNAI
Name begins with alphabet N, P & Q
|
CHE | WT | 152 | 1 | |
|
TDS WARD 2(2) CHENNAI
Name begins with alphabet I, J, K & L
|
CHE | WT | 152 | 2 | |
|
TDS WARD 2(3) CHENNAI
Name begins with alphabet M, O & R
|
CHE | WT | 152 | 3 | |
|
TDS WARD 3(1) CHENNAI
Name begins with alphabet Sn to Sz & Tiruvallur
|
CHE | WT | 153 | 1 | |
|
TDS WARD 3(2) CHENNAI
Name begins with alphabet Sa to Sm
|
CHE | WT | 153 | 2 | |
|
TDS WARD 3(3) CHENNAI
Name begins with alphabet T, U, V, W, X, Y & Z
|
CHE | WT | 153 | 3 |
Good to Know
About TAN AO Code
TAN AO Code is a 4-part code required in the TAN application form (Form 49B). It identifies the Income Tax office (Assessing Officer) that will handle your TDS/TCS returns. The code consists of: Area Code (3 letters), AO Type (2 letters), Range Code (number), and AO Number (number).
Search your city above, identify the Ward/Circle that matches your business jurisdiction, and note the 4 components. Enter these in the respective fields of your TAN application on the NSDL portal.
If you know your TDS Ward/Circle/Range from previous filings, select that exact entry. If you're new — select the row that covers your district's TDS deductions or contact your nearest Income Tax office.
TAN AO Code is for Tax Deduction Account Number applications — used by entities deducting TDS. PAN AO Code is for PAN applications — used by individuals and businesses for their personal/business tax assessment.
Yes, the Income Tax department reorganises jurisdictions periodically. Data here is sourced from NSDL's official portal. When in doubt, verify with your local Income Tax office.
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