What is TAN and why is it mandatory? TAN (Tax Deduction and Collection Account Number) is a 10-digit number required under Section 203A of the Income Tax Act for every person who deducts or collects tax at source. Without TAN, banks will not accept TDS/TCS challans, the TRACES portal will not accept TDS returns, and Section 272BB imposes a Rs. 10,000 penalty per default (Income Tax Act, 1961, Section 203A; Income Tax Act, 2025, Section 370).
The moment your business hires its first employee, pays rent above Rs. 50,000 per month, or engages a contractor, you must deduct TDS. And before you can deduct TDS, you need a TAN. It is the first compliance step for any business that makes payments subject to withholding tax.
This guide covers who needs TAN, how to apply, the documents required, the penalty framework, and common mistakes that lead to notices.
Who Must Apply for TAN
Every person responsible for deducting tax at source (TDS) or collecting tax at source (TCS) must obtain TAN before making the first deduction or collection.
Common TDS Obligations That Trigger TAN Requirement
| Payment Type | Section | TDS Rate | Threshold |
|---|---|---|---|
| Salary | 192 | Slab rates | Any amount |
| Interest (other than securities) | 194A | 10% | Rs. 50,000 (banks) / Rs. 10,000 (others) |
| Contractor payments | 194C | 1% (individual) / 2% (others) | Rs. 30,000 per payment or Rs. 1,00,000 per year |
| Professional / technical fees | 194J | 10% | Rs. 30,000 per year |
| Rent | 194I | 2% (plant) / 10% (land/building) | Rs. 50,000 per month |
| Commission / brokerage | 194H | 5% | Rs. 15,000 per year |
Who Specifically Needs TAN
| Entity | Needs TAN? | Reason |
|---|---|---|
| Company (private or public) | Yes | Deducts TDS on salary, contractor, rent, professional payments |
| Partnership firm / LLP | Yes (if TDS applicable) | Same obligations as company for payments above thresholds |
| Sole proprietor (business turnover above Rs. 1 crore or professional receipts above Rs. 50 lakh in preceding year) | Yes | Section 194A, 194C, 194J obligations triggered |
| Individual paying rent above Rs. 50,000/month | No (use Section 194-IB, deducted via PAN) | Special provision: tenant deducts TDS at 2% using PAN, not TAN |
| Government offices | Yes | TDS on contractor, vendor, and salary payments |
| Trust / society making specified payments | Yes | If TDS provisions apply to their payments |
Key exception: Individual tenants paying rent above Rs. 50,000 per month deduct TDS under Section 194-IB using their PAN (not TAN). This is a simplified provision to avoid requiring every individual to obtain TAN.
TAN Format and Structure
TAN is a 10-digit alphanumeric number with this structure:
ABCD12345E
| Position | Content | Example |
|---|---|---|
| 1-4 | First 3: city code, 4th: first letter of deductor name | HYDA (Hyderabad, name starting with A) |
| 5-9 | 5 sequential digits | 12345 |
| 10 | Alphabetic check character | E |
Unlike PAN, TAN is specific to the entity's TDS/TCS function. You quote TAN (not PAN) on all TDS-related documents.
How to Apply: Step-by-Step
Online Application (Recommended)
Portal: Protean (formerly NSDL) e-Gov Technologies portal: tin-nsdl.com
Step 1: Select Application Type
Go to TIN-NSDL portal > "TAN" > "Apply Online (Form 49B)." Select the category:
- Company
- Firm (including LLP)
- Individual / HUF
- Government
- Association of Persons / Body of Individuals / Trust
Step 2: Fill Form 49B
Enter:
- Name of the deductor (as per PAN records)
- Category of deductor
- Address (communication and registered)
- Contact details (phone, email)
- PAN of the deductor (linking TAN to PAN)
- Responsible person details (name, PAN, designation)
- Nature of payment (salary, contractor, rent, etc.)
Step 3: Pay Fee
Pay Rs. 65 + GST (approximately Rs. 77) online via demand draft, cheque, or net banking.
Step 4: Submit and Print Acknowledgment
After payment, download and print the acknowledgment. Sign it and affix a recent passport-size photograph.
Step 5: Send Signed Acknowledgment
Send the signed acknowledgment to:
NSDL e-Governance Infrastructure Limited 5th floor, Mantri Sterling, Plot No. 341 Survey No. 997/8, Model Colony Near Deep Bungalow Chowk, Pune 411016
Note: The physical dispatch of signed acknowledgment is mandatory even for online applications. Without this step, the application remains incomplete.
Step 6: TAN Allotment
NSDL processes the application within 7-15 working days. TAN is communicated to the applicant at the address provided. You can also check status online using the acknowledgment number.
Required Documents
For All Applicants
No documents need to be attached with the online application. However, the signed acknowledgment with photograph must be posted to NSDL.
For Offline Application
If applying offline via paper Form 49B:
| Document | Details |
|---|---|
| Form 49B | Filled and signed |
| Identity proof | PAN card of the deductor or authorized signatory |
| Address proof | Utility bill, rent agreement, or bank statement |
| Demand draft | Rs. 65 + GST payable to "NSDL-TIN" |
Where TAN Must Be Quoted
Under Section 203A, TAN must be quoted in every document related to TDS/TCS:
| Document | TAN Required? |
|---|---|
| TDS/TCS challan (Form 281/282) | Yes |
| TDS return (Form 24Q, 26Q, 27Q, 27EQ) | Yes |
| TDS certificate (Form 16, 16A, 16B, 16C) | Yes |
| TDS on property (Form 26QB) | No (uses PAN) |
| TDS on rent by individual (Form 26QC) | No (uses PAN) |
| Annual Information Return | Yes |
Quoting PAN instead of TAN: If you quote PAN instead of TAN on a challan or return, the payment/return is not matched to your TAN account. This results in mismatch notices and potential penalty under Section 272BB.
Penalty Framework: Section 272BB
| Default | Penalty |
|---|---|
| Failure to apply for TAN when required | Rs. 10,000 |
| Failure to quote TAN in challans, returns, or certificates | Rs. 10,000 per instance |
| Deliberately quoting wrong TAN | Rs. 10,000 per instance |
The penalty is per default, not per transaction. However, if you made multiple TDS payments without quoting TAN (or quoting wrong TAN), each payment is a separate default.
When Penalty Is Not Imposed
The Assessing Officer has discretion to not impose the penalty if the failure was due to reasonable cause. You must demonstrate:
- The failure was not deliberate
- You applied for TAN promptly once aware of the obligation
- No revenue loss to the government resulted from the delay
TAN Correction and Change
If any details on your TAN are incorrect (name, address, category), file a correction request:
Online Correction
- Visit TIN-NSDL portal > "TAN" > "Change/Correction in TAN data"
- Enter existing TAN
- Select fields to correct
- Upload supporting documents (if name change: incorporation certificate, partnership deed amendment, etc.)
- Pay correction fee: Rs. 65 + GST
- Print, sign, and post acknowledgment to NSDL
Common Corrections
| Correction Type | Supporting Document |
|---|---|
| Name change (company) | Amended Certificate of Incorporation |
| Name change (firm) | Amended Partnership Deed |
| Address change | Latest utility bill or rent agreement |
| Category change | Relevant registration certificate |
| Contact details | No document required |
TAN vs PAN: Key Differences
| Feature | TAN | PAN |
|---|---|---|
| Purpose | TDS/TCS deduction and reporting | Income tax identification |
| Who needs it | Deductors/collectors of tax at source | All taxpayers (individuals, companies, firms) |
| Where quoted | TDS challans, returns, certificates | ITR, financial transactions, investments |
| Format | 10-digit (city code + name initial + digits + check) | 10-digit (alphabets + digits + check) |
| Application form | Form 49B | Form 49A (individuals) / 49AA (entities) |
| Issuing authority | Income Tax Dept via NSDL/Protean | Income Tax Dept via NSDL/Protean or UTIITSL |
Both PAN and TAN are needed for any entity that deducts TDS. PAN identifies you as a taxpayer. TAN identifies you as a deductor/collector.
Multiple TANs: What to Do
Having more than one TAN is a violation under Section 203A. If you have been allotted multiple TANs by mistake:
- Identify which TAN has been used for filing TDS returns (this is your primary TAN)
- Write to the jurisdictional Assessing Officer requesting cancellation of the duplicate TAN
- Alternatively, file a TAN correction request on the NSDL portal to merge/cancel the duplicate
Operational risk: If you file TDS returns under different TANs, the TRACES system cannot consolidate your deduction records. Employees and deductees face issues claiming TDS credit because their Form 26AS shows TDS under different TANs.
TAN Under the New Income Tax Act, 2025
The Income Tax Act, 2025 (effective from FY 2026-27) retains the TAN requirement under Section 370 (corresponding to Section 203A of the 1961 Act). The penalty provisions under Section 272BB continue to apply.
Key references under the new Act:
| Old Act (1961) | New Act (2025) | Provision |
|---|---|---|
| Section 203A | Section 370 | Mandatory TAN for deductors |
| Section 272BB | Section 272BB (retained) | Penalty for TAN defaults |
| Form 49B | Form 135 | Application for TAN |
Form 135 replaces Form 49B under the new Act for non-government deductors. The application process and fee remain substantially the same.
Common Mistakes
1. Applying for TAN after deducting TDS. You must have TAN before making the first TDS deduction. Deducting TDS and depositing it using PAN instead of TAN results in mismatch and penalty.
2. Not linking TAN with PAN. When applying for TAN, always provide the PAN of the deductor entity. If TAN and PAN are not linked, the Income Tax Department cannot map your TDS payments to your income tax profile.
3. Forgetting TAN for branch offices. One TAN covers all branches of the same entity. Do not apply for separate TANs for different branches unless you file separate TDS returns (which is allowed but not mandatory).
4. Not updating TAN after company name change. If your company name changes (e.g., after acquisition or rebranding), update TAN records immediately. TDS certificates issued under the old name may not be accepted by deductees' Assessing Officers.
Summary
| Point | Detail |
|---|---|
| What | 10-digit number for TDS/TCS deductors |
| Who needs it | Any person deducting TDS or collecting TCS |
| Application form | Form 49B (Form 135 under new Act) |
| Fee | Rs. 65 + GST (approximately Rs. 77) |
| Processing time | 7-15 working days |
| Portal | tin-nsdl.com (Protean) |
| Penalty for no TAN | Rs. 10,000 per default (Section 272BB) |
| One TAN per entity | Multiple TANs = violation |
| Must quote in | Challans, returns, certificates |
Source: Income Tax Act, 1961, Section 203A, Section 272BB; Income Tax Act, 2025, Section 370; CBDT Notification on Form 49B/Form 135; Protean (NSDL) e-Gov Technologies TAN application portal.
