Home Loan Tax Benefits: Interest and Principal Deductions Explained
A home loan reduces income tax in two ways: through the interest paid and through the principal repaid. Both deductions carry limits and conditions, and the regime chosen by the borrower decides whether either is available. This guide explains each deduction for a home buyer in Bangalore, with the current section numbers and a worked example.
The Deductions at a Glance
The Income-tax Act, 2025 applies from 1 April 2026 and uses the term "tax year" for the April to March period. It keeps the earlier home loan deductions and gives them new section numbers. The table shows both sets of numbers and the limits.
| Deduction | Section (2025 Act) | Earlier section | Yearly limit |
|---|---|---|---|
| Interest, self-occupied home | 22 | 24(b) | Rs. 2 Lakhs |
| Interest, let-out home | 22 | 24(b) | Full interest against rent |
| Principal repaid | 123 | 80C | Rs. 1.5 Lakhs, shared with other eligible payments |
| Stamp duty and registration fee | 123 | 80C | Part of that Rs. 1.5 Lakh ceiling, for the year they are paid |
These limits apply to each taxpayer. They are claimed in the income tax return, and a salaried borrower declares them to the employer so that monthly tax deduction is adjusted.
The Tax Regime Comes First
Every individual is placed in the new tax regime by default. Its slab rates are lower, and it allows neither the interest deduction for an owner-occupied home nor the principal deduction. A borrower gets both only by opting for the old regime.
The old regime has higher rates, so the choice depends on the total of all deductions a person holds. A home loan alone often falls short of the amount needed at higher incomes. The comparison should be made each year, since the interest share of the EMI falls over time.
Interest When the Owner Lives in the Home
Loan interest on a purchased or newly built home is deducted while computing house property income. Where the owner lives in the home, the deduction stops at Rs. 2 Lakhs a year. Two homes at most are treated as self-occupied, and the single Rs. 2 Lakh ceiling covers both together.
The higher limit comes with conditions:
- The loan is for buying or constructing the home
- The home is bought or fully built inside five years, counted from the close of the financial year of borrowing
- A certificate from the lender states the interest payable for the year
When the five-year condition is missed, the limit drops to Rs. 30,000 a year. The same Rs. 30,000 limit applies to a loan taken for repairs or renovation. Interest is deductible on an accrual basis, so the amount in the lender's certificate is the figure to use.
Interest Paid Before Possession
Buyers of under-construction flats pay interest for two or three years before they move in. Such pre-construction interest waits until the home is ready. The total is counted up to 31 March before the financial year of completion.
That total is spread over five years in equal parts, and the first part is claimed for the completion year. A buyer who paid Rs. 6 Lakhs of interest before completion deducts Rs. 1.2 Lakhs a year for five years. Where the owner lives in the home, the instalment and the current year's interest together stay within Rs. 2 Lakhs. The Finance Act, 2026 wrote this point expressly into section 22.
Interest When the Home Is Rented Out
A home given on rent follows a different sum. The owner starts with the rent, deducts municipal tax paid, and then takes a standard deduction of 30% of the balance. The full interest for the year is deducted next, with no fixed ceiling.
The result is often a loss while the loan is young. In the old regime, Rs. 2 Lakhs of that loss at most is set against salary and other income of that year. The remainder is carried forward for eight years and set against house property income only.
Principal Repaid
The principal part of the EMI qualifies for deduction under section 123 (section 80C earlier), with a ceiling of Rs. 1.5 Lakhs a year. That ceiling is shared with provident fund, life insurance premium, school tuition fees and tax-saving funds. A salaried buyer whose provident fund already uses much of the limit has less room left for principal.
Four conditions apply to this deduction:
- The loan is from a bank, a housing finance company or another specified lender. A loan from family or friends does not qualify for principal
- The home is residential, and the deduction starts once construction is complete
- Principal repaid on a loan for repairs, renovation or an extension is outside this deduction
- The owner keeps the home for five years, counted from the close of the financial year of possession
A sale inside the five years reverses the benefit. Every principal deduction already taken is then taxed as the seller's income of the sale year.
Stamp Duty and the Registration Fee
Stamp duty, the registration fee and similar expenses paid to transfer the home to the buyer count towards that Rs. 1.5 Lakh ceiling. The claim belongs to the year the money is paid. An amount not claimed in that year cannot be carried to the next.
On most Bangalore purchases the duty alone is larger than the limit. Karnataka charges stamp duty of 5.6% with cess and surcharge on a home above Rs. 45 Lakhs, and a registration fee of 2%. A buyer in the old regime therefore uses the whole ceiling in the registration year, before any principal is counted.
A Worked Example
Take a loan of Rs. 75 Lakhs at 8.5% for 20 years on a self-occupied flat, as an illustration. The EMI is about Rs. 65,087. The first 12 EMIs carry about Rs. 6.32 Lakhs of interest and Rs. 1.49 Lakhs of principal.
| Item | Paid in year 1 | Deductible (old regime) |
|---|---|---|
| Interest | Rs. 6.32 Lakhs | Rs. 2 Lakhs |
| Principal | Rs. 1.49 Lakhs | Rs. 1.49 Lakhs, if nothing else uses the limit |
| Total | Rs. 7.81 Lakhs | Rs. 3.49 Lakhs |
A deduction of Rs. 3.49 Lakhs saves about Rs. 1,08,900 of tax in the 30% slab and about Rs. 72,600 in the 20% slab, cess included. Interest of Rs. 4.32 Lakhs brings no tax benefit, because it is above the limit. The saving counts only when the old regime still produces the lower total tax, and in the new regime it is nil.
Joint Owners
A co-owner who has also signed the loan and pays part of the EMI claims the deductions in their own return. Two such owners in the old regime deduct up to Rs. 4 Lakhs of interest and Rs. 3 Lakhs of principal between them. Each claim follows the person's share in the property and the amount actually paid.
In the example above, a couple with equal shares would each have Rs. 3.16 Lakhs of interest. Each deducts Rs. 2 Lakhs, so the household uses Rs. 4 Lakhs of the Rs. 6.32 Lakhs paid. The ownership shares should be written in the sale deed before registration.
Older Extra Deductions
Two further interest reliefs for first-time buyers, under the earlier sections 80EE and 80EEA, were tied to the date of sanction. The later one covered loans sanctioned up to 31 March 2022 on homes with a stamp value up to Rs. 45 Lakhs. A loan sanctioned today falls outside both, so a new buyer plans with the two main deductions only.
Records to Keep
A claim rests on a few documents, and the employer or the tax department may ask for them. They are best kept together from the first year.
- The lender's yearly certificate, which splits the EMIs into interest and principal
- The sanction letter and the loan agreement
- The registered sale deed, with receipts for the duty and fee paid
- The possession letter or occupancy certificate, which fixes the year of completion
- A statement of interest paid before possession, for the five instalments
The EMI calculator gives the EMI and the upfront costs for a chosen price. Buyers weighing a home in areas such as HSR Layout or Devanahalli should budget on the EMI itself and count any tax relief as an addition.
