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TAN Registration in Kolkata: CA-Assisted Tax Deduction Account Number for Businesses

Reviewed by CA and CS Team, Patron Accounting LLP ICAI & ICSI Registered| 15+ Years Experience| Last Updated: 08 April 2026 Verify Credentials →

Documents:: Form 49B, entity details, AO code for Kolkata jurisdiction

Fees:: Govt Rs 77 (Rs 65 + GST) | CA from Rs 1,999 | Timeline: 5-7 working days

Eligibility:: All TDS deductors (employers, businesses) and TCS collectors | Lifetime validity

Authority:: Protean TIN portal | IT e-filing portal | Section 203A IT Act | KOL prefix

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TAN registered and quarterly TDS returns set up same week. Correct AO code, OLTAS challans, Form 16 for all employees. Zero late filing penalties in 3 years of service.
AD
HR Head, IT Company
Salt Lake Sector V
★★★★★
Patron caught that our SPICe+ company already had TAN. Saved us from duplicate TAN penalty. Then set up TDS compliance for salary, rent, and contractors. Very thorough.
RG
Director, Manufacturing
Taratala
★★★★★
BFSI firm in Dalhousie. Patron manages our TAN compliance - interest TDS, commission TDS, salary TDS across 200+ employees. Monthly challans and quarterly 24Q/26Q filed precisely.
KM
CFO, Financial Services
Dalhousie
★★★★★
Startup in New Town hired first employee. Patron got TAN in 7 days and set up salary TDS system. When we hired contractors, 194C compliance was already configured. Future-proof setup.
PB
Founder, Startup
New Town
★★★★★
Wholesale business in Burrabazar. Patron set up TCS compliance for scrap and mineral sales alongside our TDS obligations. Form 27EQ and 26Q both filed quarterly. Complete coverage.
SB
Owner, Wholesale Trading
Burrabazar
★★★★★

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TAN Registration in Kolkata: Overview

📌 TL;DR - TAN Registration Services at a Glance

TAN registration in Kolkata obtains a 10-digit identifier (KOL prefix) under Section 203A IT Act for TDS deductors and TCS collectors. Filed via Form 49B on Protean TIN portal. Rs 77 govt fee. Lifetime validity. Must quote TAN on all TDS/TCS returns, challans, and certificates. Companies via SPICe+ get TAN auto with COI.

Every Kolkata employer deducting salary TDS, business paying rent/contractors/professionals, and seller collecting TCS needs TAN. Salt Lake IT companies, Dalhousie BFSI firms, Taratala manufacturers, Burrabazar traders. Learn more about TAN Registration across India.

Form 49B filed on Protean TIN portal with correct Kolkata AO code. CA ensures accurate filing and TDS return setup. Same CA handles PAN, GST, and payroll in Kolkata.

Content is reviewed quarterly for accuracy.

What Is TAN Registration?

TAN (Tax Deduction and Collection Account Number) is a 10-digit alphanumeric identifier issued under Section 203A of the IT Act, 1961 for persons deducting TDS or collecting TCS.

Mandatory to quote TAN in all TDS/TCS returns (24Q, 26Q, 27Q, 27EQ), challans (OLTAS), and certificates (Form 16/16A). Applied via Form 49B on Protean portal. Rs 77 fee. Lifetime validity. Kolkata prefix: KOL.

For Kolkata: employers (Salt Lake IT), BFSI (Dalhousie), manufacturers (Taratala), wholesale traders collecting TCS (Burrabazar), restaurants (Park Street), and startups (New Town) all need TAN before first TDS deduction.

Key Terms for TAN Registration:

  • TAN: 10-digit Tax Deduction Account Number (KOL prefix for Kolkata)
  • Form 49B: Application form filed on Protean TIN portal
  • Section 203A: Mandatory TAN for TDS/TCS deductors/collectors
  • AO Code: Assessing Officer code for Kolkata IT jurisdiction
  • Form 24Q: Quarterly salary TDS return
  • Form 26Q: Quarterly non-salary TDS return
  • Section 234E: Late TDS return penalty Rs 200/day
  • Section 272BB: Rs 10,000 penalty for not obtaining TAN
TAN KOLP12345A 24Q | 26Q | FORM 16 SEC 203A TAN Registration
Section 203A IT Act TAN Registration

Who Needs TAN in Kolkata?

Employers (Salt Lake / New Town / Dalhousie): Salary TDS under Section 192. Every employer regardless of employee count. Form 24Q quarterly.

Rent/Contractor/Professional Payers: Rent > Rs 50K/month (194-I), contractors > Rs 30K (194C), professional fees > Rs 30K (194J). Most Kolkata businesses.

Companies and LLPs: SPICe+ companies get TAN auto. LLPs and existing companies without TAN apply separately. Multiple sections applicable.

TCS Collectors (Burrabazar): Motor vehicles > Rs 10L, scrap, minerals, timber. E-commerce operators. Section 206C. Form 27EQ.

BFSI Firms (Dalhousie): Interest TDS (194A), commission (194H), salary (192). Thousands of TDS transactions monthly.

Startups/SMEs (New Town / Salt Lake): First employee hire = TAN needed. Rent agreement = TAN needed. Contractor engagement = TAN needed.

TAN Registration Services Included

ServiceWhat We Do
Form 49B FilingComplete online filing on Protean TIN portal. Entity details, deductor category, Kolkata AO code, Rs 77 payment
AO Code Lookup (Kolkata)Correct Area Code, AO Type, Range Code, AO Number for Kolkata IT Ward/Circle jurisdiction
TAN Allotment (KOL prefix)10-digit TAN issued within 5-7 days. Allotment letter downloaded from Protean portal
IT E-Filing Portal RegistrationTAN registered on incometax.gov.in for electronic TDS/TCS return filing. Credentials configured
TDS Return Filing SetupForm 24Q (salary), 26Q (non-salary), 27Q (NRI), 27EQ (TCS). Quarterly calendar. RPU/FVU software
TDS Challan ManagementOLTAS portal. TDS deposited by 7th of following month. Challan reconciliation with returns
Form 16/16A GenerationTDS certificates for deductees via TRACES portal. Form 16 (salary annual), 16A (non-salary quarterly)
TAN CorrectionName, address, or contact changes filed on Protean portal. Rs 77 correction fee
Our Process

TAN Registration Process in Kolkata

From AO code lookup to Form 49B filing, TAN allotment, and TDS return setup - here's how Patron gets your Kolkata business TDS-compliant.

Step 1

Determine TAN Requirement

CA confirms if new TAN needed. SPICe+ companies already have TAN. LLPs, partnerships, proprietorships need Form 49B. Multiple branches may need separate TANs.

Need confirmed Duplicates checked
TANNEEDED?CHECK
Requirement Set01
Step 2

Identify AO Code for Kolkata

CA maps entity address to Kolkata IT Ward/Circle. Area Code, AO Type, Range Code, AO Number identified. Offices in Dalhousie/AJC Bose Road area. Wrong code delays processing.

AO code found Jurisdiction mapped
AO CODEKOLKATAMAPPED
AO Code Ready02
Step 3

File Form 49B on Protean Portal

CA files on tin.tin.proteantech.in. Deductor category, name, Kolkata address, AO code, contact details. Rs 77 paid online (net banking/card/UPI). Form submitted.

49B filed Rs 77 paid
49BRs 77FILED
Application Filed03
Step 4

Acknowledgement Signed and Submitted

14-digit acknowledgement generated. Signed by authorised signatory. Sent to Protean Pune or e-signed via Aadhaar. CA coordinates submission.

Ack signed Submitted
ACK14-DIGITSIGNED
Processing04
Step 5

TAN Allotment (KOL Prefix)

Protean processes in 5-7 working days. 10-digit TAN (KOLP12345A) allotted. Communicated via email and post. CA downloads allotment letter.

TAN allotted KOL prefix
TANKOLP12345ALIFETIME
TAN Active05
Step 6

Register on E-Filing Portal + TDS Setup

TAN registered on incometax.gov.in. Quarterly return calendar: 24Q/26Q/27Q/27EQ. OLTAS challan setup. TRACES for Form 16/16A. TDS compliance from Day 1.

Portal registered Returns configured
24Q ✓26Q ✓CHALLAN ✓FORM 16 ✓
TDS Compliant06

Documents Required

  • Entity Details: Name, address, deductor category
  • PAN: Of the entity (for cross-reference)
  • Authorised Signatory: Name, designation, contact details
  • AO Code: Kolkata IT jurisdiction code (CA identifies)
  • Business Registration: COI, partnership deed, or proprietorship proof
  • Address Proof: Kolkata business address for TAN allotment

Kolkata-Specific Tip: The AO code varies by Kolkata IT Ward/Circle. Entering the wrong code maps TAN to wrong jurisdiction, causing TDS return and assessment issues. Patron's CA cross-references entity address with IT Department jurisdictional mapping before filing.

Common Challenges in Kolkata

ChallengeImpactHow Patron Accounting Solves It
Wrong AO CodeKolkata has multiple IT Wards/Circles with different codesCA cross-references address with IT jurisdictional mapping
Duplicate TANSPICe+ TAN + separate Form 49B = Rs 10,000 penaltyCA checks existing TAN records before filing
Branch vs Head Office TANUnclear if branch needs separate TANCA advises: if TDS deducted from branch, separate TAN needed
TDS Non-Compliance Post-TANLate returns Rs 200/day (234E), late deposit interest 1.5%/monthCA includes quarterly TDS returns and challan tracking from Day 1
E-Filing Portal Not RegisteredTAN not linked to incometax.gov.in = cannot file returnsCA registers TAN on e-filing portal immediately after allotment

TAN Registration Fees in Kolkata

Fee ComponentAmount
Government Fee (Form 49B)Rs 77 (Rs 65 + 18% GST) paid online on Protean portal
Professional Fee (Patron CA)Rs 1,999-3,999 (AO code lookup, filing, e-filing portal registration)
TDS Return Filing (quarterly)Rs 1,500-4,000 per quarter (Form 24Q/26Q/27Q - ongoing service)
Form 16/16A GenerationRs 1,000-2,000 per quarter (TRACES portal, TDS certificates)
Total (TAN Registration only)Rs 2,076-4,076 one-time
Total (TAN + 1st Year TDS)Rs 8,000-20,000 (includes 4 quarterly returns + challans + Form 16)

All fees and charges listed are indicative only and do not constitute a binding offer. Final amounts may vary depending on the volume of work and the complexity involved.

Professional service charges for drafting, filing, and representation are separate from the statutory fees. The exact fee depends on the complexity of the case, disputed amount, and number of hearings required. Contact us for a detailed quote.

Get a free TAN Registration consultation - Call +91 945 945 6700 or WhatsApp us. No-obligation assessment.

Registration Timeline

StageEstimated Timeline
AO Code IdentificationDay 1 (CA maps Kolkata IT jurisdiction)
Form 49B Filing + FeeDay 1-2 (Protean portal, Rs 77 online)
Acknowledgement SubmissionDay 2-3 (signed and sent/e-signed)
Protean ProcessingDay 3-10 (5-7 working days)
TAN Allotment (KOL)Day 7-10 (email + post notification)
E-Filing Portal + TDS SetupDay 10-12 (portal registration + return calendar)

Kolkata Processing Note: Form 49B is filed 100% online on Protean TIN portal. Rs 77 paid online. TAN allotted in 5-7 working days with KOL prefix. CA handles AO code, filing, portal registration, and TDS compliance setup remotely.

Key Benefits

Why Choose Patron for TAN in Kolkata?

Kolkata AO Code Expertise

Correct AO code for your specific Kolkata IT Ward/Circle. Wrong code = wrong jurisdiction = TDS return issues. CA maps accurately.

TDS Return Filing from Day 1

24Q/26Q/27Q/27EQ quarterly returns set up immediately. OLTAS challans. TRACES for Form 16/16A. Zero late filing penalty.

4-Office Authority

Offices in Pune, Mumbai, Delhi, Gurugram. Multi-city TAN and TDS compliance across all business locations.

Integrated PAN + GST + Payroll

TAN registered alongside PAN, GST, and payroll. TDS on salary, rent, contractors all managed. Complete employer compliance.

Trusted by Kolkata Employers

10,000+ Businesses Served | 4.9 Google Rating | 50,000+ Documents Filed | 15+ Years

"Patron registered our TAN and set up quarterly TDS returns the same week. Correct AO code, OLTAS challans, and Form 16 for all employees. Zero late filing penalties in 3 years."

- IT Company, Salt Lake Sector V

With offices in Pune, Mumbai, Delhi, and Gurugram, Patron serves Kolkata through a digital-first CA team.

TAN vs PAN - Key Differences

FeatureTANPAN
Full FormTax Deduction and Collection Account NumberPermanent Account Number
PurposeIdentify TDS deductors / TCS collectorsIdentify taxpayers for IT Department
Issued UnderSection 203A IT ActSection 139A IT Act
Who Needs ItEmployers, businesses deducting TDS; TCS collectorsAll taxpayers, businesses, entities
Format10-digit (KOLP12345A) - city + name + digits10-digit (ABCPD1234E) - alpha + digits
ValidityLifetimeLifetime (Aadhaar linkage required)
Used InTDS/TCS challans, returns, Form 16/16AITR, financial transactions, GST

Related Services

Legal and Compliance Framework

  • Section 203A IT Act - mandatory TAN for TDS/TCS
  • Section 192 (salary), 194A (interest), 194C (contractor), 194-I (rent), 194J (professional), 206C (TCS)
  • Section 234E - late TDS return Rs 200/day
  • Section 201(1A) - interest 1.5%/month on late TDS deposit
  • Section 272BB - Rs 10,000 penalty for no TAN
  • Protean TIN: tin.tin.proteantech.in | IT e-filing: incometax.gov.in

Key Forms: 49B (application) | 24Q (salary) | 26Q (non-salary) | 27Q (NRI) | 27EQ (TCS) | Form 16/16A (certificates)

Deposit: TDS by 7th of following month (30th April for March) | OLTAS portal | Challan 281

FAQs - TAN Registration in Kolkata

Common questions about TAN, Form 49B, AO code, TDS compliance, penalties, and quarterly returns for Kolkata businesses.

Quick Answers

TAN kya hai? 10-digit code. TDS deduct karne wale ko zaroori hai. Kolkata ke liye KOL se start hota hai.

Kolkata mein TAN kaise banwayein? Patron se call +91 945 945 6700. CA Protean portal pe Form 49B file karta hai. Rs 77. 5-7 din.

TAN na hone pe penalty? Rs 10,000 Section 272BB. TDS return file nahi ho paata. Form 16 issue nahi hota.

Don't Wait - Get TAN Before First TDS

Every TDS deduction without TAN = Rs 10,000 penalty. Challans cannot be deposited. Returns cannot be filed. Late filing Rs 200/day. Late deposit 1.5%/month interest. Get TAN before first employee hire, rent payment, or contractor engagement.

Get Started with TAN Registration in Kolkata

TAN registration in Kolkata is mandatory for every TDS deductor and TCS collector under Section 203A. Filed via Form 49B on Protean TIN portal. Rs 77 govt fee. Lifetime validity. KOL prefix.

Kolkata businesses across Salt Lake, Dalhousie, Park Street, Burrabazar, Taratala, and Howrah benefit from CA-managed AO code mapping, Form 49B filing, and integrated TDS return compliance.

Patron Accounting LLP has served 10,000+ businesses, filed 50,000+ documents, and maintained a 4.9 Google rating across 15+ years of chartered accountancy practice.

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TAN Registration Across India

CA-assisted TAN for TDS compliance in 8 cities.

Content Created: 08 April 2026  |  Last Updated: 08 April 2026  |  Next Review: 08 October 2026  |  Reviewed By: CA & CS Team, Patron Accounting LLP

This content covers TAN registration in Kolkata including Section 203A, Form 49B, AO code, Protean portal, KOL prefix, TDS returns, and Form 16/16A. Reviewed semi-annually. Freshness Tier 2.

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