1. Automatic Formation by Family Structure

• A Hindu Undivided Family (HUF) is created automatically when a Hindu family (including Buddhists, Jains, and Sikhs) lives together under a common ancestor.
• No formal registration is required for its existence.

2. Requirement of Joint Family Property

• The HUF must have some ancestral or jointly acquired property.
• Even a single male member can form an HUF if he holds ancestral assets.

3. Initiation by a Karta (Head of HUF)

• The eldest male member usually acts as the Karta (manager).
• A female can also be a Karta under certain legal conditions (court rulings).

4. Declaration & PAN Card Registration

• For legal and tax purposes, the HUF must obtain a separate PAN card.
• A declaration deed (optional but recommended) can be made to formalize its existence.

5. Addition of Members Over Time

• New members (sons, daughters, wives) are added by birth or marriage.
• The HUF continues as long as there are at least two members (e.g., father & son).