Clubbing parent’s income can enhance eligibility and double tax benefit. Structure: property 50:50 owned, loan 50:50 liable. Each borrower can claim ₹2 L interest u/s 24(b) and ₹1.5 L principal u/s 80C, aggregating ₹7 L deductions. Caveat: parent must be co-owner; repayment via separate cheques. We provide sample loan structure chart, bank consent letter and succession plan. Age risk: ensure term ends before parent turns 70. Keywords: joint home loan parent, tax rebate double, section 24 benefit.