Income Tax Deductions Explained — A Guide to 80C to 80U

Introduction

Deductions are the most effective legal way to reduce your income tax. They lower your taxable income — the figure on which tax is actually calculated — so every rupee of eligible deduction directly reduces your liability.

But deductions only help if you know which ones you qualify for and claim them correctly. This guide walks through the most useful deductions for individual taxpayers, with current limits and the conditions attached to each.

One crucial point first: most of these deductions are available only under the old tax regime. The new regime switches almost all of them off in exchange for lower slab rates. So before you plan around deductions, decide which regime you are filing under.

Section 80c — the Big One (Up to ₹1,50,000)

Section 80C is the most widely used deduction. You can claim up to ₹1,50,000 per year across a basket of eligible investments and expenses, including:

• Employee Provident Fund (EPF) and Public Provident Fund (PPF)
• Equity Linked Savings Schemes (ELSS mutual funds)
• Life insurance premiums
• Principal repayment on a home loan
• Children's tuition fees (up to two children)
• 5-year tax-saving fixed deposits
• National Savings Certificate (NSC) and Sukanya Samriddhi Yojana

The ₹1,50,000 limit is a combined cap across all of these — not per item.

Section 80ccd(1b) — Extra ₹50,000 for Nps

On top of 80C, you can claim an additional ₹50,000 for contributions to the National Pension System (NPS) under Section 80CCD(1B). This is over and above the ₹1.5 lakh limit, taking the combined retirement-saving deduction to ₹2,00,000.

Section 80CCD(2) covers your employer's contribution to NPS and is one of the few deductions that survives in the new regime — making it valuable for salaried employees whose employer offers NPS.

Section 80d — Health Insurance

Section 80D lets you deduct health insurance premiums:

• Up to ₹25,000 for premiums covering yourself, your spouse, and dependent children
• An additional ₹25,000 for insuring your parents — rising to ₹50,000 if your parents are senior citizens
• A ₹5,000 sub-limit within these amounts for preventive health check-ups

For a taxpayer with senior-citizen parents, the total 80D deduction can reach ₹75,000 (₹25,000 + ₹50,000).

Other Useful Deductions

Section 80E — Education loan interest:

The entire interest paid on a loan for higher education is deductible, with no upper limit, for up to 8 years.

Section 80G — Donations:

Donations to approved charitable institutions and funds qualify for a deduction of either 50% or 100% of the donated amount, depending on the institution. Cash donations above ₹2,000 do not qualify — pay by cheque or digital transfer.

Section 80TTA / 80TTB — Interest income:

Section 80TTA allows up to ₹10,000 on savings account interest for individuals under 60. Section 80TTB allows senior citizens up to ₹50,000 on interest from savings and fixed deposits.

Section 80U / 80DD — Disability:

Section 80U gives a flat deduction (₹75,000, or ₹1,25,000 for severe disability) to a taxpayer with a certified disability. Section 80DD provides a similar deduction where a dependent has a disability.

Section 24(b) — Home loan interest:

Though not an 80-series deduction, interest on a self-occupied home loan is deductible up to ₹2,00,000 and is one of the largest deductions available under the old regime.

A Quick Reference Table

Deductions and the New Regime

This is the part taxpayers most often get wrong. Under the new tax regime, the deductions above — 80C, 80D, 80E, HRA, 24(b) home loan interest — are not available. The new regime offers only a small set, chiefly the ₹75,000 standard deduction and the employer's NPS contribution under 80CCD(2).

If you rely heavily on deductions, the old regime may still be the better choice — but you must opt into it. Compare both before deciding.

Common Mistakes to Avoid

Mistake 1: Claiming deductions under the new regime.

The new regime disallows most of them. Claiming 80C or 80D here will trigger a mismatch and possibly a notice.

Mistake 2: Treating the 80C limit as per-investment.

₹1,50,000 is the combined cap across all 80C items — not ₹1.5 lakh each for PPF, ELSS, and insurance.

Mistake 3: Paying cash donations above ₹2,000.

Cash donations over ₹2,000 are not eligible under 80G. Always use a traceable payment method and keep the receipt.

Mistake 4: Not keeping proof.

Deductions can be questioned during assessment. Retain premium receipts, investment statements, and donation certificates.

Key Takeaways

• Deductions reduce taxable income directly and are the main lever for lowering tax under the old regime
• 80C (₹1.5 lakh) plus 80CCD(1B) (₹50,000 NPS) is the core of most individuals' tax planning
• 80D health insurance can add up to ₹75,000 where senior-citizen parents are covered
• Home loan interest under 24(b) (up to ₹2 lakh) is often the single largest deduction
• Almost all of these are unavailable in the new regime — decide your regime first
• Keep documentary proof for every deduction you claim

When to Seek Professional Help

Maximising deductions is about more than ticking boxes — it is about structuring your investments and insurance so they work for your goals as well as your tax. A CA can map your eligible deductions, confirm which regime serves you better, and ensure every claim is correctly documented so it holds up under scrutiny.