The information necessary to complete Form 10FA includes: 1. Assessee's name and address. 2. Assessee's status (individual, HUF, company, etc.). 3. Nationality (for individuals). 4. Country of incorporation or registration (for others). 5. Assessee's email ID and PAN (Permanent Account Number). 6. Duration for which the residence certificate is applicable. 7. Basis for claiming resident status in India. 8. Purpose of obtaining the Tax Residency Certificate.