FD Interest Taxation in India

What it is

FD interest is fully taxable ordinary income in India. Every rupee earned as FD interest is added to your gross total income for the financial year and taxed at your applicable income slab rate — no special rate, no indexation benefit, no holding period that changes the treatment.

This applies in both the old and new tax regimes.

The misconception that costs crores

The most persistent FD tax myth in India: “5-year FD interest is tax-free.”

It is not.

What the 5-year bank FD (under Section 80C) actually gives you is a deduction on principal — investing up to ₹1.5 lakh per year in a 5-year tax-saver FD reduces your taxable income in the year of investment. That is the only tax benefit. The interest accruing over those 5 years is fully taxable every single year, at your slab rate.

PPF interest is tax-free (EEE). 5-year bank FD interest is not.

How TDS works

Banks are required to deduct TDS (Tax Deducted at Source) when your interest income from that bank in a financial year exceeds:

Depositor type	TDS threshold	TDS rate (with PAN)
Regular (below 60)	₹40,000/yr	10%
Senior citizen (60+)	₹50,000/yr	10%
Corporate/company	₹5,000/yr	10%
Any depositor without PAN	Same thresholds	20%

TDS is a withholding, not the final tax. If your slab rate is 20% and TDS was deducted at 10%, you owe the remaining 10% when you file your ITR. If your total income is below the taxable limit and TDS was deducted, you can claim a full refund by filing ITR.

How to prevent TDS: Form 15G and Form 15H

If your total income for the year is below the basic exemption limit, you can instruct the bank not to deduct TDS by submitting a self-declaration form:

Form 15G — for individuals below age 60, and HUFs. Conditions: (1) your total income is below the basic exemption limit (₹2.5L under old regime; ₹3L under new regime), and (2) total interest income from all sources is below the basic exemption limit.
Form 15H — for senior citizens (60+). Condition: only (1) applies — your total income must be below the exemption limit. No second condition.

Submit these to each bank at the start of each financial year (April, before any interest is credited). A common mistake is submitting only in the year of FD maturity — TDS may already have been deducted in earlier years.

Submitting Form 15G/15H reduces TDS to zero. It does not reduce your tax liability. You still must declare the interest income in your ITR.

Old regime vs new regime — identical for FD

This surprises many: switching from the old to the new tax regime does not change how FD interest is taxed. In both:

FD interest is added to gross total income
Taxed at the applicable slab rate
TDS threshold and rates are the same
No exemption, no special treatment

The only thing that changes is which slab rate you fall into — because the two regimes have different slab structures and different available deductions. If the new regime results in a lower effective rate for you, your FD tax burden falls accordingly. But the mechanism is identical.

Worked example: what slab rate actually costs you

Setup: ₹5 lakh invested at 7.5% p.a. (quarterly compounding) for 1 year.

Gross maturity = ₹5,00,000 × (1 + 0.075/4)⁴ = ₹5,38,569 Gross interest = ₹38,569

Slab rate	Tax paid	You keep	Post-tax CAGR
0%	₹0	₹38,569	7.71%
10%	₹3,857	₹34,712	6.94%
20%	₹7,714	₹30,855	6.17%
30%	₹11,571	₹26,998	5.40%

At a 30% slab, the effective return on your “7.5% FD” is only 5.40%. This is lower than the current PPF rate (7.1%) on a tax-free basis — and PPF compounds tax-free each year.

At a 20% slab, a 7.5% FD gives 6.17% post-tax — broadly comparable to PPF, without the 15-year lock-in.

Use the FD Calculator → to compute your exact post-tax CAGR for any principal, rate, and slab.

Practical tax strategies for FD investors

1. Spread FDs across banks. TDS is triggered per bank. If your interest from any single bank stays below ₹40,000/year, no TDS is deducted automatically. With an FD ladder, splitting across multiple banks is natural — and keeps each bank’s annual interest below the threshold.

2. Book FDs in family members’ names. Interest on an FD in a retired parent’s or non-earning spouse’s name is taxed at their (likely lower or nil) slab rate. Note: income clubbing rules apply if you gift money to a spouse — consult a tax advisor.

3. Time the FD start date. A cumulative FD started in March pays all accrued interest at maturity (or is TDS-assessed annually). Starting in April vs March shifts one year’s interest from one financial year to the next — useful for managing which year your income peaks.

4. Use Form 15G/15H proactively. File at the start of the financial year, not at maturity. Many investors submit it only when reminded by the bank near maturity — but TDS for earlier years may already have been deducted.

5. Compare FD after-tax vs alternatives at your slab. At 30% slab: FD 7.5% → 5.40% effective. PPF 7.1% → 7.1% effective (EEE). RBI Bonds 8.05% → 5.64% effective. SCSS 8.2% → 5.74% effective (for senior citizens). The tax drag on FD interest changes which product wins at your specific slab.

Key takeaways

FD interest is taxed at your income slab rate in both old and new regimes — no exemption for any tenure
The 5-year “tax-saver FD” gives a principal deduction under 80C, not interest exemption
TDS threshold: ₹40,000/year per bank for general public; ₹50,000 for senior citizens
File Form 15G (below 60) or Form 15H (60+) each April to prevent TDS if income is below exemption
At 30% slab, a 7.5% FD earns only 5.40% post-tax — compare against PPF (7.1%, tax-free)
Calculate your exact post-tax CAGR instantly in the FD Calculator →