Govt Rs 77. CA fee from Rs 1,999. Total from Rs 2,076 for registration only.

5-7 working days after application processed by Protean. Total 7-10 days from start.

Yes for all TDS deductors and TCS collectors. Rs 10,000 penalty under Section 272BB without TAN.

Rs 10,000 for no TAN Section 272BB. Late TDS returns Rs 200 per day Section 234E. Interest 1.5 percent per month.

TAN for TDS TCS deduction. PAN for taxpayer identity. Both 10-digit. Both mandatory for different purposes.

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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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Overview What Is TAN Who Needs It Services Process Documents Challenges Fees Timeline Why Patron TAN vs PAN FAQs

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

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

Service	What We Do
Form 49B Filing	Complete 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 Registration	TAN registered on incometax.gov.in for electronic TDS/TCS return filing. Credentials configured
TDS Return Filing Setup	Form 24Q (salary), 26Q (non-salary), 27Q (NRI), 27EQ (TCS). Quarterly calendar. RPU/FVU software
TDS Challan Management	OLTAS portal. TDS deposited by 7th of following month. Challan reconciliation with returns
Form 16/16A Generation	TDS certificates for deductees via TRACES portal. Form 16 (salary annual), 16A (non-salary quarterly)
TAN Correction	Name, 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

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 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

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

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

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

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

Challenge	Impact	How Patron Accounting Solves It
Wrong AO Code	Kolkata has multiple IT Wards/Circles with different codes	CA cross-references address with IT jurisdictional mapping
Duplicate TAN	SPICe+ TAN + separate Form 49B = Rs 10,000 penalty	CA checks existing TAN records before filing
Branch vs Head Office TAN	Unclear if branch needs separate TAN	CA advises: if TDS deducted from branch, separate TAN needed
TDS Non-Compliance Post-TAN	Late returns Rs 200/day (234E), late deposit interest 1.5%/month	CA includes quarterly TDS returns and challan tracking from Day 1
E-Filing Portal Not Registered	TAN not linked to incometax.gov.in = cannot file returns	CA registers TAN on e-filing portal immediately after allotment

TAN Registration Fees in Kolkata

Fee Component	Amount
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 Generation	Rs 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

Stage	Estimated Timeline
AO Code Identification	Day 1 (CA maps Kolkata IT jurisdiction)
Form 49B Filing + Fee	Day 1-2 (Protean portal, Rs 77 online)
Acknowledgement Submission	Day 2-3 (signed and sent/e-signed)
Protean Processing	Day 3-10 (5-7 working days)
TAN Allotment (KOL)	Day 7-10 (email + post notification)
E-Filing Portal + TDS Setup	Day 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

Feature	TAN	PAN
Full Form	Tax Deduction and Collection Account Number	Permanent Account Number
Purpose	Identify TDS deductors / TCS collectors	Identify taxpayers for IT Department
Issued Under	Section 203A IT Act	Section 139A IT Act
Who Needs It	Employers, businesses deducting TDS; TCS collectors	All taxpayers, businesses, entities
Format	10-digit (KOLP12345A) - city + name + digits	10-digit (ABCPD1234E) - alpha + digits
Validity	Lifetime	Lifetime (Aadhaar linkage required)
Used In	TDS/TCS challans, returns, Form 16/16A	ITR, financial transactions, GST

Related Services

TAN Registration in India - National services
PAN Registration in Kolkata - Taxpayer identity
GST Registration in Kolkata - Tax compliance
Payroll Services in Kolkata - Salary TDS management
Pvt Ltd in Kolkata - TAN auto via SPICe+
Accounting Services - Business bookkeeping

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

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.

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How to apply for TAN in Kolkata?

Form 49B on Protean TIN portal. CA fills entity details with correct Kolkata AO code. Rs 77 online. TAN allotted in 5-7 days. No IT office visit.

Can TAN be applied online?

Yes, 100% online via Protean portal. Rs 77 paid online. Acknowledgement e-signed or posted. CA handles complete process.

What is the TAN fee?

Govt Rs 77 (Rs 65 + GST). CA professional fee from Rs 1,999 including AO code lookup and e-filing portal setup. Total from Rs 2,076.

How long does TAN take?

5-7 working days after Protean processing. CA files Form 49B within 1-2 days. Total 7-10 days from engagement to TAN allotment.

Is TAN mandatory for all employers?

Yes. Every employer deducting salary TDS (Section 192) must have TAN. IT companies, BFSI firms, manufacturers, startups - regardless of employee count. Rs 10,000 penalty without TAN.

What is the penalty for no TAN?

Rs 10,000 under Section 272BB. TDS returns rejected without TAN. Late returns Rs 200/day (Section 234E). Late deposit interest 1.5%/month (Section 201(1A)).

Do companies get TAN automatically?

Yes, companies via SPICe+ at RoC Kolkata get TAN with COI. LLPs, partnerships, proprietorships must apply separately via Form 49B.

What is TAN vs PAN?

TAN for TDS/TCS deduction (Section 203A). PAN for taxpayer identity (Section 139A). Both 10-digit. Both mandatory but for different purposes.

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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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.