CIN, LLPIN, GSTIN, PAN, TAN, DIN, DSC — What They Mean and When You Need Them
CIN, LLPIN, GSTIN, PAN, TAN, DIN, DSC — meaning, format, when you need them. Complete guide for Indian businesses.
In India, every business and individual has multiple IDs — PAN, TAN, GSTIN, CIN, LLPIN, DIN, DSC. Each is used for a specific purpose. In this guide, we explain what each ID means, its format, and when you need it.
1. PAN (Permanent Account Number)
Issued by: Income Tax Department. Format: 10 characters (5 letters + 4 digits + 1 letter). Example: ABCDE1234F. Used for: income tax, opening bank accounts, high-value transactions. Required for: individuals, HUFs, firms, companies, LLPs, trusts, AOPs, BOIs, foreign nationals (for Indian transactions).
2. TAN (Tax Deduction Account Number)
Issued by: Income Tax Department. Format: 10 characters (4 letters + 5 digits + 1 letter). Example: DELA12345A. Used for: TDS / TCS deduction. Required for: all persons who deduct or collect tax (employers, businesses paying rent / professional fees / interest).
3. GSTIN (Goods and Services Tax Identification Number)
Issued by: GSTN. Format: 15 characters (2 digits state + 10 char PAN + 1 entity + 1 Z + 1 check digit). Example: 19ABCDE1234F1Z5. Used for: GST registration. Required for: businesses with turnover > ₹20L (₹10L for special category states).
4. CIN (Corporate Identification Number)
Issued by: MCA. Format: 21 characters. Example: U12345MH2024PTC123456. Used for: identifying the company. Required for: all Pvt Ltd / Public Ltd / Section 8 / Nidhi companies. The CIN is printed on the Certificate of Incorporation.
| CIN Code | Meaning |
|---|---|
| U | Unlisted company |
| L | Listed company |
| 12345 | Industry code (NIC) |
| MH | State code (Maharashtra) |
| 2024 | Year of incorporation |
| PTC | Private / Public (PTC = Pvt Ltd) |
| 123456 | Registration number |
5. LLPIN (Limited Liability Partnership Identification Number)
Issued by: MCA. Format: 10 characters (2 letters + 6 digits + 2 letters). Example: AAJ-1234. Used for: identifying the LLP. Required for: all LLPs. The LLPIN is printed on the Certificate of Incorporation.
6. DIN (Director Identification Number)
Issued by: MCA. Format: 8 digits. Example: 12345678. Used for: identifying a director. Required for: all directors of a company / designated partners of an LLP. Lifetime validity. Must file DIR-3 KYC every year.
7. DSC (Digital Signature Certificate)
Issued by: CCA-licensed CAs (eMudhra, Capricorn, etc.). Format: certificate file (.pfx / .p12). Used for: signing electronic documents. Required for: directors (MCA filings), taxpayers (IT / GST), e-tender bidders. Validity: 1-3 years.
8. DPIN (Designated Partner Identification Number)
Issued by: MCA. Same as DIN but for LLP designated partners. Required for: all designated partners of an LLP. Issued automatically during LLP registration.
9. IEC (Import Export Code)
Issued by: DGFT. Format: 10 characters. Example: 1234567890. Used for: import / export. Required for: any business doing import or export in India. Lifetime validity.
10. FSSAI License / Registration Number
Issued by: FSSAI. Format: 14 digits. Example: 12345678901234. Used for: food business. Required for: all food businesses in India. Basic (< ₹12L turnover), State (₹12L-₹20Cr), Central (> ₹20Cr).
11. Trade License Number
Issued by: Municipal Corporation. Format: varies by city. Used for: operating a commercial establishment. Required for: shops, factories, restaurants, hotels, offices. Annual renewal.
12. Shop and Establishment License
Issued by: State Labour Department. Format: varies by state. Used for: shops + commercial establishments. Required for: any business with employees. Annual renewal.
Quick Reference
| ID | Issuer | Format | Required For |
|---|---|---|---|
| PAN | IT Dept | ABCDE1234F | All businesses + individuals |
| TAN | IT Dept | DELA12345A | TDS deductors |
| GSTIN | GSTN | 19ABCDE1234F1Z5 | Businesses > ₹20L |
| CIN | MCA | 21 chars | Companies |
| LLPIN | MCA | AAJ-1234 | LLPs |
| DIN | MCA | 8 digits | Company directors |
| DSC | CCA-CA | Certificate | e-Signing documents |
| IEC | DGFT | 10 digits | Importers / exporters |
| FSSAI | FSSAI | 14 digits | Food businesses |
Frequently Asked Questions
Q: Do I need all these IDs?
A: Depends on your business. For a Pvt Ltd: PAN + TAN + GSTIN + CIN + DIN + DSC. For an LLP: PAN + TAN + GSTIN + LLPIN + DPIN + DSC. For a food business: add FSSAI. For import/export: add IEC.
Q: Are these IDs free?
A: PAN, TAN, GSTIN, CIN, LLPIN, DIN, IEC, FSSAI (Basic) are free (government fee). DSC is paid (₹500-₹1,500 per year). Professional fees for filing are separate.