A Bengaluru couple bought their first flat together and assumed that putting both names on the loan would automatically double their tax savings. It nearly did, but not for the reason they thought. Their adviser explained that the benefit did not come from the two signatures on the loan alone; it came from both of them being owners of the flat, both being borrowers on the loan, and both actually paying the EMI. Miss any one of those, and a name on the paperwork buys nothing at tax time. Set them up correctly, and a couple can claim the home loan deductions twice over, one of the few genuine ways a joint purchase saves real money.

The short answer. A joint home loan can let two co owners each claim the home loan deductions, so under the old regime a couple can together claim interest up to two lakh rupees each under Section 24(b) and principal up to one and a half lakh each under Section 80C, doubling what a single borrower gets. The catch is that each person claiming must be all three things at once: a co owner of the flat, a co borrower on the loan, and an actual contributor to the EMI. A joint loan also lifts how much you can borrow, since the lender counts both incomes. The trade off is shared liability: both borrowers are fully responsible for the whole loan, and co ownership brings rights and obligations that outlast the tax year.

What is a joint home loan and who is a co borrower?

A joint home loan is one taken by two or more people together, each of whom is a co borrower jointly responsible for repaying it. A co borrower is a person whose name is on the loan agreement alongside yours and who shares the legal obligation to repay, which is different from being merely a co owner of the property or a guarantor. Lenders commonly allow close family, such as a spouse or parents, to be co borrowers, and they assess the combined profile of everyone on the loan. The important distinction for what follows is between ownership of the flat and borrowing on the loan: a person can be one without the other, and the tax benefits depend on being both. Understanding that a co borrower carries real repayment liability, not just a supporting signature, is the starting point for using a joint loan well.

How can co owners double the tax benefit?

When two people are each a co owner and a co borrower, each can claim the home loan deductions in their own return, which is how a couple effectively doubles them. The table below sets out what that looks like under the old regime for a self occupied home.

The doubling is real but conditional: it needs two genuine owner borrowers, and it is available under the old regime, since the new regime generally removes these deductions for a self occupied home. Read the last row with the first two, because the benefit only exists if your regime allows it in the first place.

Who exactly can claim the deductions?

Only a person who is at once a co owner of the property, a co borrower on the loan, and a genuine contributor to the EMI can claim the home loan deductions. This three part test is where many couples slip. An owner who is not on the loan cannot claim, because there is no loan in their name to deduct; a borrower who is not an owner cannot claim, because the deductions attach to owning the property; and even an owner borrower who does not actually pay towards the EMI cannot claim, because the benefit follows the payment. The cleanest arrangement is therefore both partners on the title and on the loan, each paying a real share of the instalment from their own funds, ideally traceable. The deductions are then allocated in the ratio of ownership, so how the share is recorded in the deed matters. Set the ownership, the borrowing and the payment to line up, and each person can claim; leave any one of them misaligned, and the second claim can fail.

Does a joint loan help me borrow more?

Yes, adding a co borrower usually increases how much you can borrow, because the lender assesses the combined income of everyone on the loan. Home loan eligibility is driven largely by income and existing obligations, so two incomes on one loan can support a larger amount than either alone, which is often the practical reason couples take a joint loan in the first place. This can be the difference between qualifying for the flat you want and falling short. It cuts both ways, though: a larger loan means a larger commitment that both borrowers must service, and if one partner's income later falls or the relationship changes, the full obligation still stands against both. So treat the higher eligibility as an option to use carefully rather than a licence to borrow to the limit, and size the loan to what the household can sustain if circumstances change.

What are the obligations and rights of co ownership?

Co ownership makes each person a part owner of the flat with a defined share, and co borrowing makes each fully liable for the whole loan. These two facts shape the arrangement well beyond tax. As co owners, the partners hold the property together in the share recorded in the sale deed, which matters for how deductions are split and for what each is entitled to if the property is later sold or divided. As co borrowers, each is responsible not merely for their portion but for the entire loan, so a default by one exposes the other, and the lender can look to either for the full amount. It is sensible to record the ownership share clearly, to understand that liability is joint and full, and to think ahead about what happens on events such as sale, separation or the death of a co owner. A joint purchase is a long relationship with a bank and with a co owner, and clarity at the outset prevents disputes later. Where parents come on as co owners purely to boost eligibility, it is worth thinking through how their share will eventually pass, since a co owner's stake forms part of their estate and can draw in other heirs if it is never addressed. A short conversation and a clearly recorded share at the start save a great deal of difficulty for everyone later.

How do co buyers set this up correctly?

Line up ownership, borrowing and payment so that each claimant qualifies and the arrangement is clear.

1. Put both partners on the sale deed as co owners, with the share recorded clearly.
2. Ensure both are named as co borrowers on the home loan agreement.
3. Have each co owner contribute a real share of the EMI from their own funds.
4. Confirm you are on the old regime before relying on the doubled deductions.
5. Claim interest and principal in each return, allocated by ownership share.
6. Keep records of the ownership share, the loan and each person's payments.
7. Agree in advance what happens on sale, separation or the death of a co owner.

How does this fit the regime choice and EMI?

The doubling only works if the underlying deductions are available to you, so a joint loan sits directly on top of the regime decision. Our guide to home loan tax benefits under the old and new regimes explains why these deductions apply under the old regime and generally not for a self occupied home under the new, which decides whether a second claim is worth anything. And because two incomes can support a larger loan, our guide to home loan EMI math at the current repo rate helps a couple see what that larger loan actually costs each month. If you are buying together in a project such as Sobha Madison Heights on Hosur Road, set the ownership and the loan up to match your tax plan from the start. The joint loan is a genuine saving, but only when ownership, borrowing, payment and regime all line up.

Frequently asked questions

Can two co owners each claim home loan tax benefits? Yes, under the old regime, if each is both a co owner and a co borrower and pays a share of the EMI. Each can then claim interest up to two lakh under Section 24(b) and principal up to one and a half lakh under Section 80C, roughly doubling a single borrower's deductions on a self occupied home.

Do both of us need to be on the loan and the title? Yes. To claim, a person must be a co owner, a co borrower, and a contributor to the EMI, all three together. An owner who is not on the loan, a borrower who is not an owner, or an owner borrower who does not pay the EMI cannot claim, so all three must line up for each claimant.

Does a joint home loan increase how much I can borrow? Usually yes, because the lender assesses the combined income of all co borrowers, so two incomes can support a larger loan than one. This is often the main practical reason couples take a joint loan. Remember that the larger commitment binds both borrowers fully, so size it to what the household can sustain if circumstances change.

Are both co borrowers liable for the whole loan? Yes. Co borrowing makes each person fully responsible for the entire loan, not just their share, so a default by one exposes the other and the lender can pursue either for the full amount. This is why it is worth recording the ownership share clearly and agreeing what happens on sale, separation or the death of a co owner.

Last updated 2026-08-30. PropNewz Team.