"Close relatives” are defined as:

• Parents (including step-parents & in-laws)
• Children (including step-children & in-laws)
• Grandparents (including in-laws)
• Siblings (including half-siblings, step-siblings & in-laws)
• Uncles and aunts (including in-laws) - siblings of parents or spouse's parents only
• Nieces and nephews (including in-laws)

On loans over 80% LTV, income boosters must be close relatives of at least one of the owners. For family concessionary purchases, the vendor must be a close relative of at least one of the owners.