FD Taxation in India: TDS, Interest Income & Rules

The Part Most People Overlook When Booking an FD

Fixed Deposits are often described as "guaranteed returns," and while the interest rate itself is guaranteed, what you actually keep after tax often isn't top of mind when booking one. FD interest is fully taxable, and understanding exactly how — including TDS rules — helps you avoid surprises at tax filing time and plan your deposits more efficiently.

How FD Interest Is Taxed

Interest earned on a Fixed Deposit is classified as "Income from Other Sources" and added to your total taxable income for the year, then taxed at your applicable income tax slab rate. There's no separate, preferential tax rate for FD interest the way there is for certain long-term capital gains — it's taxed just like your salary or business income would be.

What Is TDS on Fixed Deposits?

Banks are required to deduct Tax Deducted at Source (TDS) on the interest they pay you, if your total interest income from that bank crosses a specified threshold in a financial year. This TDS is deducted at the time the interest is credited or paid, not at maturity — meaning even cumulative FDs (where you don't receive interest until maturity) can have TDS deducted annually as interest accrues.

Current TDS Thresholds (Always Verify Current Rates)

These thresholds and the TDS rate itself are set by the government and can change with Union Budgets, so always check the current applicable limits directly with the Income Tax Department or your bank before assuming past figures still apply.

TDS Is Not the Final Tax — It's an Advance

This is a common point of confusion. TDS deducted by the bank is not your final tax liability — it's simply tax collected in advance on your behalf. Your actual tax liability on FD interest depends on your total income and applicable slab rate for the year. If your slab rate is higher than the TDS rate, you owe additional tax at filing time. If it's lower — or if your total income is below the taxable threshold — you can claim a refund of the excess TDS deducted.

How to Avoid or Reduce TDS: Form 15G and 15H

If your total income is below the taxable threshold, you can submit Form 15G (for individuals below 60) or Form 15H (for senior citizens) to your bank, declaring that your income doesn't require tax to be deducted. This prevents TDS from being deducted in the first place, rather than having to claim a refund later. These forms need to be submitted at the start of each financial year, or whenever you open a new FD.

What If You Have FDs Across Multiple Banks?

TDS thresholds apply per bank, not in aggregate across all your FDs everywhere. This means if you split a large deposit across multiple banks, each bank calculates TDS independently based on the interest it pays you. However, this doesn't reduce your actual tax liability — you're still required to declare and pay tax on your total interest income across all banks when filing your return, regardless of how TDS was deducted at each individual bank.

Cumulative FD vs Non-Cumulative FD: Does Taxation Differ?

No — the tax treatment is identical. The key difference is timing of TDS deduction. In a non-cumulative FD, TDS is deducted each time interest is actually paid out (monthly, quarterly, etc.). In a cumulative FD, even though you don't receive any interest until maturity, banks still calculate and deduct TDS annually on the interest that has accrued that year, since tax law requires interest to be taxed on an accrual basis, not just when received.

How to Report FD Interest While Filing Returns

FD interest needs to be declared under "Income from Other Sources" in your income tax return, regardless of whether TDS was deducted or not. Banks typically provide an interest certificate or Form 26AS reflects TDS deducted, which serves as a reference when filing. It's worth cross-checking your bank's interest certificate against Form 26AS to ensure accurate reporting.

Common Mistakes

1. Assuming no TDS means no tax liability. Even if TDS wasn't deducted (say, interest was below the threshold at each individual bank), you're still required to declare and pay tax on the full interest income if your total income is taxable.

2. Forgetting to submit Form 15G/15H when eligible. This results in unnecessary TDS deduction, requiring you to claim a refund later instead of avoiding the deduction altogether.

3. Not accounting for accrued interest on cumulative FDs. Many depositors are surprised to see TDS deducted on a cumulative FD before maturity, not realizing interest is taxed on an accrual basis each year.

4. Splitting deposits across banks assuming it avoids tax. This only affects TDS deduction thresholds per bank — total interest income across all banks is still fully taxable when filing your return.

See It in Action

Use our FD Calculator to estimate your maturity amount, and our Tax Calculator to understand how FD interest income affects your overall tax liability for the year.

Key Takeaway: FD interest is fully taxable at your slab rate, and TDS is simply an advance collection mechanism, not your final tax liability — understanding thresholds, Form 15G/15H, and accrual-based taxation on cumulative FDs helps you plan more accurately. This wraps up Module 1 — next, Module 2 covers PPF (Public Provident Fund): Complete Guide.

Frequently Asked Questions