Apply for Income tax Registration

PAN is to be obtained by: 

1. Every person if his total income or the total income of any other person in respect of which he is assessable during the year exceeds the maximum amount which is not chargeable to tax. 
2. A charitable trust who is required to furnish return under Section 139(4A) 
3. Every person who is carrying on any business or profession whose total sale, turnover, or gross receipts are or is likely to exceed five lakh rupees in any year 
4. Every person who intends to enter into specified financial transactions in which quoting of PAN is mandatory.
5. Every non-individual resident persons and persons associated with them shall apply for PAN if the financial transaction entered into by them during the financial year exceeds Rs. 2,50,000. 

Persons require to apply for TAN

Every person liable to deduct tax at source or collect tax at source is required to obtain TAN. No separate TAN is required to be obtain for the purpose of TCS, TAN allotted for TDS can be used for the purpose of TCS.  Single TAN is to be used for different types of payment such as salary, interest payment, etc. TAN once allotted can be used for all types of TDS and TCS. However, 

1. A person required to deduct TDS at 1% from consideration for purchase of any immovable property (other than agriculture land) above Rs. 50 Lakhs, can use PAN in place of TAN and is not required to obtain TAN. (Section 194-IA)
2. An individual or HUF [whose books of account are not required to be audited under section 44AB] required to deduct TDS at 5% while making payment of rent exceeding Rs. 50,000 p.m. (of any land or building or both) to a resident person, shall not require to obtain TAN. (Section 194-IB)
3. An individual or HUF [whose books of account are not required to be audited under section 44AB] required to deduct TDS at 5% from the sum paid or credited to a resident exceeding Rs. 50 lakhs in a year on account of contractual work, commission (other than insurance commission), brokerage or professional fees, shall not require to obtain TAN. (Section 194M)