Tax
Section 80C tends to dominate tax-saving conversations, largely because it's the first one most people learn about. But it's one of several deductions and rebates available, and several of the others go unused simply because nobody mentioned them. Note that most of what follows applies under the old tax regime; the new regime allows very few of these.
Section 80D: health insurance premiums
Premiums paid for health insurance, for yourself, your family, and separately for parents, qualify for a deduction under 80D, with a higher limit if your parents are senior citizens. This is worth claiming regardless of whether you're optimizing for tax, since the underlying insurance is something most households need anyway. Preventive health check-ups also count toward this limit, within a small sub-cap.
Section 80TTA and 80TTB: savings account and senior citizen interest
Interest earned on a savings account is deductible up to a set limit under 80TTA for individuals below 60. Senior citizens get a more generous version under 80TTB, which also covers fixed deposit interest, not just savings accounts. This is one of the more commonly missed deductions, since savings account interest is small enough per account that people don't think to claim it.
Home loan interest under Section 24
Interest paid on a home loan for a self-occupied property is deductible up to a set annual limit under Section 24, separate from the principal repayment that falls under 80C. For a let-out property, there's no upper cap on the interest deduction, though set-off against other income is limited in a given year, with the remainder carried forward.
HRA: House Rent Allowance
If you're salaried, receive HRA as part of your compensation, and actually pay rent, a portion of that HRA is exempt from tax based on a formula involving your salary, the HRA received, and your city of residence. This is separate from any deduction; it's an exemption calculated before your taxable salary is even arrived at.
Section 80E: education loan interest
Interest paid on a loan taken for higher education, for yourself, your spouse, or your children, is fully deductible with no upper limit, for up to eight years from when repayment begins. Unlike most deductions on this list, there's no cap on the amount, only on the duration.
Section 87A: the rebate, not a deduction
87A works differently from everything above. It's a rebate applied after your tax is calculated, effectively reducing your tax liability to zero if your taxable income falls within its threshold, currently more generous under the new regime than the old one. It's automatic if you qualify, but understanding it matters because it changes whether a small additional deduction is even worth pursuing in a given year.
Putting it together
Deductions only help if you're on the regime that allows them, and if you actually have the documentation to back up the claim at filing time. Before assuming the new regime's lower rates are automatically better, add up what you'd actually claim under the old regime, 80C, 80D, home loan interest, HRA, and compare the two outcomes directly rather than guessing.
Not sure which regime nets out better for you
We use and recommend this platform for filing ITR in India. It runs both regime calculations against your actual numbers so you're not guessing which one saves more.
File your ITR →Affiliate link. We may earn a commission if you sign up, at no extra cost to you.
This article is educational and not personalised financial advice. Deduction limits referenced here reflect the position as of FY 2025-26; always confirm current limits on the official Income Tax Department website before filing.