A joint home loan is one where two or more people borrow together. Adding a co-applicant, often a spouse or parent, can raise the amount you can borrow. It can also bring tax and rate benefits. But it ties both of you to the loan for its whole life, and it shows up on both your credit reports. This guide explains how it works and what to check before you sign.
What is the difference between a co-applicant, co-owner and guarantor?
- Co-applicant or co-borrower: a person who signs the loan with you and shares the duty to repay it.
- Co-owner: a person whose name is on the property papers, such as the sale deed.
- Guarantor: a person who promises to repay if the borrowers do not. TransUnion CIBIL says a guarantor on any loan is equally responsible for ensuring it is repaid, and a default by the main borrower affects the guarantor's score too.
These roles can overlap, but they are not the same. Each lender sets its own rules on who can be a co-applicant, and on whether every co-owner must also join the loan, so ask yours and check its current Key Facts Statement and sanction terms.
How does a co-applicant raise your loan eligibility?
Lenders limit your loan so that your EMIs (equated monthly instalments) stay within a share of your income. When a co-applicant's income is added, that limit goes up. Each lender uses its own method and limits, so the numbers below are only an illustration.
Assume a lender allows total EMIs of up to 50% of net monthly income, at 7.60% for 20 years (240 months). The maximum loan is the amount whose EMI equals that limit, using the standard EMI formula: EMI = P × r × (1 + r)^n ÷ ((1 + r)^n − 1), where r is the monthly rate (yearly rate ÷ 12 ÷ 100) and n is the number of months.
| Net monthly income | Maximum EMI (50%) | Approximate maximum loan | |
|---|---|---|---|
| You alone | ₹80,000 | ₹40,000 | ₹49,27,814 |
| You + co-applicant earning ₹50,000 | ₹1,30,000 | ₹65,000 | ₹80,07,698 |
Lenders also cap the loan by the property's value and look at each applicant's age, existing EMIs and credit history. A co-applicant with a weak credit record may not help. Ujjivan Small Finance Bank's guide notes that a lender may exclude a co-applicant's income from eligibility if their credit profile is weak.
Who is liable to repay a joint home loan?
Every co-borrower. Ujjivan's guide says a co-applicant who is a co-borrower carries full repayment responsibility.
In practice this means the lender can ask any co-borrower to pay the full EMI, not just "their half". How you split payments between yourselves is a private arrangement. It does not change what each of you owes the lender. Your duty usually lasts until the loan is closed or the lender formally agrees to release you, so ask the lender about its process for removing a co-borrower before you sign.
How does a joint home loan affect both CIBIL scores?
- It appears on each borrower's report. Ujjivan's guide notes the loan appears in your credit report and can affect your ability to take more loans later.
- Late payments hurt everyone on the loan. The same guide says a delay or default in EMI payments by the primary borrower will also affect the co-applicant's CIBIL score.
- Good payments can help. A regular repayment record is part of each borrower's credit history.
A CIBIL score ranges from 300 to 900. Some lenders, such as Union Bank of India, price home loans by credit score band, so a co-borrower's missed EMI on this loan could raise the rate either of you is offered on future loans. Set up auto-debit from an account with enough balance, and agree who will step in if one of you is short.
Can both co-borrowers claim tax benefits?
From 1 April 2026, the Income-tax Act, 2025 replaced the Income-tax Act, 1961. Earlier tax years stay under the old Act. Here is what the new Act's text says on the main points:
- Co-owners are taxed separately. Section 24 says that where a property is co-owned with definite and ascertainable shares, each co-owner's income from it is computed separately according to their share. The relief for a self-occupied home is given as if each co-owner were individually entitled to it.
- Interest: Section 22 allows a deduction for interest on money borrowed to acquire or construct the property. For a self-occupied home, it is capped at ₹2,00,000 a year where the purchase or construction is completed within five years from the end of the tax year in which the loan was taken, and ₹30,000 in other cases.
- Principal: repayment of a loan taken by the taxpayer to buy or build a house is listed in Schedule XV and counts towards the Section 123 deduction, which has an overall limit of ₹1,50,000 that also covers other items.
- New tax regime: under Section 202, the default regime, these interest and principal deductions are not allowed for a self-occupied home. They are available only if you opt for the old regime.
The Income Tax Department's guide on house property income, written for the 1961 Act, says that if the loan is taken jointly by co-owners, each of the loan holders can claim a deduction for home loan interest. A co-applicant who is not a co-owner may not get these benefits. Since each co-owner files their own return, each applies the limits to their own claim. Check the details for your case with a tax adviser before you rely on them.
Are there extra benefits when a woman is a co-owner?
Some lenders and states offer them. Two verified examples, as of October 2026:
- Interest rate: Union Bank of India's rate sheet effective 8 October 2026 lists slightly lower home loan rates in some credit score bands where the house is singly or jointly owned by a female borrower. For a salaried borrower with a CIBIL score of 700 to 749, the rate is 7.95% instead of 8.00%. On a ₹50,00,000 loan over 20 years, that is an EMI of ₹41,667 instead of ₹41,822, about ₹155 a month or ₹37,309 over the loan.
- Stamp duty: this is a state tax and differs by state. Delhi's Revenue Department lists stamp duty on a sale deed at 6% of the consideration for a male buyer and 4% for a female buyer (the higher of the consideration or circle rate value applies). On a ₹60,00,000 home, that is ₹3,60,000 against ₹2,40,000. The page does not list a rate for joint male and female buyers and shows no date, so confirm the current rate with the sub-registrar's office.
What else should joint borrowers know?
- Prepayment: RBI's prepayment directions cover loans to individuals "with or without co-obligant(s)". For floating-rate loans for non-business purposes sanctioned or renewed on or after 1 January 2026, there is no prepayment charge.
- Balance transfer: if you move the loan to a lower-rate lender later, the new lender sets its own rules on who must sign, so involve every co-borrower early.
- Write things down: agree in writing who pays how much, and make sure ownership shares in the sale deed match what you intend.
- Plan for changes: separation, a job loss or a death can leave one borrower carrying the full EMI. Think about how you would manage that before you sign.
Do it in 10 minutes, free
Use the eligibility calculator on LowerMyEMI to see how much you could borrow alone and together. If you already have a joint loan, LowerMyEMI can write a letter to your bank asking for a lower rate, and one email per lender asking for their best offer, which you send from your own email. We are not a lender, and each lender decides its own rates and rules.