Next dueTDS / TCS
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
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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.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
AO Codes for MUMBAI  (26 records)
Ward / Circle / Range Area Code AO Type Range Code AO No. Copy
OSD TDS CIRCLE 1(2), MUMBAI
 MUM CT 84 2
OSD TDS CIRCLE 2(3), MUMBAI
 MUM CT 88 2
TDS WARD 1(1)(1), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'AA' TO 'AM'
 MUM WT 81 1
TDS WARD 1(1)(2), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'AN' TO 'AZ'
 MUM WT 81 2
TDS WARD 1(1)(3), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'B'
 MUM WT 81 3
TDS WARD 1(1)(4), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'C'
 MUM WT 81 4
TDS WARD 1(3)(1), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'J'
 MUM WT 82 1
TDS WARD 1(3)(2), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'K'
 MUM WT 82 2
TDS WARD 1(3)(3), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'L'
 MUM WT 82 3
TDS WARD 1(3)(4), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'M'
 MUM WT 82 4
TDS WARD 2(2)(1), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'SA' TO 'SD'
 MUM WT 83 1
TDS WARD 2(2)(2), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'SE' TO 'SF'
 MUM WT 83 2
TDS WARD 2(2)(3), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'SG' TO 'SH'
 MUM WT 83 3
TDS WARD 2(2)(4), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'SI' TO 'SZ'
 MUM WT 83 4
TDS WARD 1(2)(1), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'D'
 MUM WT 84 1
TDS WARD 1(2)(2), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'E','F'
 MUM WT 84 2
TDS WARD 1(2)(3), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'G','H'
 MUM WT 84 3
TDS WARD 1(2)(4), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'I'
 MUM WT 84 4
TDS WARD 2(1)(1), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'O'
 MUM WT 86 1
TDS WARD 2(1)(2), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'P'
 MUM WT 86 2
TDS WARD 2(1)(3), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'Q','RF' TO 'RZ'
 MUM WT 86 3
TDS WARD 2(1)(4), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'RA' TO 'RE'
 MUM WT 86 4
TDS WARD 2(3)(1), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'N'
 MUM WT 88 1
TDS WARD 2(3)(2), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'T','U'
 MUM WT 88 2
TDS WARD 2(3)(3), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'V','W'
 MUM WT 88 3
TDS WARD 2(3)(4), MUMBAI
TDS RETURN CASES OF MUMBAI & NAVI MUMBAI HAVING TDS < 50 LACS STARTING WITH ALPHABETS 'X' TO 'Z'
 MUM WT 88 4
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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