From getting a mobile connection to conducting financial transactions, you just cannot escape Aadhaar. Here is a list of accounts and documents which have to be linked with Aadhaar mandatorily, and those where linking or quoting is not a must but doing so can make your life easier:
The government has made it mandatory for banks to verify and link their customers' Aadhaars with their savings accounts. As of now, the deadline for doing this is December 31, 2017, and accounts where it is not linked by then will become inoperable unless there's an extension on the last date.
Mutual fund investments
It has been made mandatory for financial institutions like fund houses to get their customers' Aadhaar numbers and link the same to their respective accounts. The current deadline for asset management companies to comply with this directive is December 31, 2017.
The government had earlier notified that income tax returns filed after July 1, 2017 would be accepted only after the assessee linked his PAN with Aadhaar. The latest deadline set by the government is December 31, 2017. The two have to be linked in order for ITRs to be processed.
Social security schemes
To avail benefits of social security schemes such as Atal Pension Yojana and Pradhan Mantri Ujjwala Yojana, the Aadhaar is now mandatory, and the deadline to furnish your details for the same is December 31, 2017. However, the Supreme Court is still to give a final decision on petitions challenging the legal validity of Aadhaar on the grounds that it is an intrusion into one's right to privacy.
The Employees' Provident Fund Organisation has made it mandatory for its pensioners to provide either Aadhaar or enrolment ID to remain beneficiaries of social security schemes. To comply with this, with effect from February 1, 2017, those who are eligible for pension under EPS must provide their Aadhaar number.
Aadhaar based e-KYC verification for all mobile phone subscribers must be done by February 6, 2018. While getting a new mobile connection, too, you have to provide your Aadhaar details.
Faster provident fund claims
Although it is not mandatory to link your Aadhaar number to your PF account, doing so will allow you to apply for the claim online and get it within 5 days.
Direct Benefit Transfer (DBT)
It is advisable to provide your Aadhaar details to get benefits under the government's DBT schemes even though it is not mandatory. Doing so you can safeguard against duplication or fraudulent activities and ensures that the money transfer reaches directly to your Aadhaar-linked bank account.
From October 1, 2017, death certificates will need to have the deceased person's Aadhaar number. The person applying for the death certificate for a family member needs to furnish his or her Aadhaar as well. Therefore, it becomes effectively mandatory.
Driving licence and registration of vehicles
The government is planning to link driving license and the registration of vehicles with the owner's Aadhaar number. This is being done to prevent the issuance of fake licences and registration of stolen vehicles.