Section 26 of the Income Tax Act 1961 enables each co-owner to fully exhaust their deduction limits under house property income. Every deduction available under the head house property can be claimed by both co-owners separately. Using this provision, a couple can claim up to ₹4 lakhs interest deduction on self-occupied property, and ₹3 lakhs principal repayment under the old regime, when they are co-owners and co-borrowers.
If the co-owner of a house property opts for the new regime, then the benefits under Section 80C, 80EEA, and 24(b) for interest expenses incurred on self-occupied property are not available as a deduction.
However, there is no restriction on deducting interest expenses on let-out property by the joint owners.
For example, Rahul and his father bought a house on loan and paid Rs 4.5 lakh in interest. They have a 50:50 share in the property. Rahul can claim Rs 2 lakh in his tax return, his father can also claim Rs 2 lakh.
For example, if the rental income is Rs. 7.5 lakh, Interest on the housing loan is Rs 12 lakh, the co-owner's share is 80%, and Salary income is Rs 15 lakh. Total Income will be as follows
| Particulars | Amount | Amount |
| Income from Salary Income from House Property | 15,00,000 | |
| Rental Income(80% of Rental Income) | 6,00,000 | |
| Less: Standard deduction u/s 24(a) 30% | -1,80,000 | |
| Less: Interest on loan u/s 24(b) (80% of total interest) | -9,60,000 | |
| Total | -5,40,000 | |
| Income from House Property | -2,00,000 | |
| Loss from House Property c/f to next year | -3,40,000 | |
| Total Income | 13,00,000 |
Thus in the above example, each co-owner will get deduction of interest equivalent to the percentage of ownership in the property, you will observe that excess loss over Rs 200,000 cannot be adjusted during the year and will be carried forward to next year, and such loss in next year will be eligible to set off only against income from house property.
Therefore, as a family, you will be able to take a larger tax benefit against the interest paid on the home loan when the property is jointly owned and your interest outgo is more than Rs 2,00,000 per annum.
There may be a situation where you are paying the entire loan instalment, and the co-borrower is not contributing any payments. In such a case, you may claim the entire interest as a deduction in your Income Tax Return.
Section 27 of the Income-tax Act explains the scenario of Deemed ownership. When an Individual transfer his property for inadequate consideration
The person transferring such property will be deemed the owner of the property as per the Act.
Illustration:
Both individuals need to be co-owners of the property to avail tax benefits. The joint owners can claim a tax rebate on their proportion of share in the house property. It means that a joint owner can consider his/her spouse’s repayment capacity when planning the share of a home loan.
Thus, if joint owners are equal, but their loan share is 60:40, the tax benefits will also be shared in the same ratio. If this ratio is changed to 70:30, even tax benefits will change accordingly.