How FD Interest Is Taxed in India: TDS, Slabs, and Rules

For generations of Indian families, the Fixed Deposit (FD) has stood as the bedrock of financial security. Whenever surplus cash arrives—whether from a festival bonus, property sale, or retirement gratuity—the instinctive response is to open a bank FD. The headline interest rate of 7.25% or 7.50% per annum promises steady, predictable capital preservation.

Yet very few depositors calculate what actually remains in their bank account after the Income Tax Department takes its share.

If you sit in the 30% income tax slab, an advertised 7.25% bank FD yields an effective post-tax return of just 5.00%. In an economic environment where consumer food and healthcare inflation regularly hovers between 5.5% and 7.0%, your “safe” investment is silently losing purchasing power every single year.

Compounding this erosion is widespread confusion around Tax Deducted at Source (TDS). Millions of investors erroneously believe that because the bank deducted 10% TDS under Section 194A, their tax liability on FD interest is completely settled. It is not.

This guide provides a comprehensive forensic breakdown of how fixed deposit interest is taxed in India. You will learn the mechanics of annual accrual taxation, statutory TDS thresholds for general and senior citizens, how to properly submit Form 15G/15H, and how to compute real post-tax returns across all income tax slabs.

The Core Rule: Taxed on Accrual Basis, Not on Maturity

The single biggest misconception among fixed deposit investors involves the timing of taxation.

Many depositors choose a 3-year or 5-year Cumulative FD (Reinvestment Deposit), where principal and compounded interest are paid out together in a single lump sum at maturity. They assume that since no cash entered their savings account during years one, two, or three, no tax is payable until the final maturity payout.

Under the Income-tax Act, 1961, this assumption is completely false.

The Accounting Mandate: Mercantile / Accrual System

Under Section 56(2)(id), interest on fixed deposits is classified under Income from Other Sources. For individual taxpayers, tax law requires interest to be declared and taxed on an accrual basis every single financial year:

• Every financial year on March 31st, the bank calculates the interest earned on your cumulative deposit during that fiscal year, credits it virtually to your deposit ledger, and reports it directly to the Income Tax Department under your PAN.
• You are legally required to declare that accrued interest in your Income Tax Return for that specific assessment year, regardless of whether you withdrew the funds.
• If you wait until maturity in Year 5 to declare all five years of accumulated interest in a single ITR, that massive lump sum will artificially push you into higher tax brackets, triggering severe penalty interest under Sections 234B and 234C!

    Accrual vs Maturity Taxation (5-Year Cumulative FD)
    
    Year 1: ₹70,000 Interest Accrued ──► Declared in Year 1 ITR (Tax Paid)
    Year 2: ₹75,250 Interest Accrued ──► Declared in Year 2 ITR (Tax Paid)
    Year 3: ₹80,900 Interest Accrued ──► Declared in Year 3 ITR (Tax Paid)
    Year 4: ₹86,970 Interest Accrued ──► Declared in Year 4 ITR (Tax Paid)
    Year 5: ₹93,500 Interest Accrued ──► Declared in Year 5 ITR (Tax Paid)
    Maturity: Full Principal + Net Compounded Interest Paid to Bank Account

TDS on Fixed Deposits: Section 194A Explained

To ensure compliance, the government mandates that financial institutions deduct tax at source before crediting or compounding interest.

The Statutory Thresholds

Under Section 194A, banks and cooperative societies must deduct TDS when cumulative interest credited or likely to be credited across all branches of that bank during the financial year exceeds:

• For Non-Senior Citizens (Below 60 Years): ₹40,000 per financial year
• For Senior Citizens (Aged 60 and Above): ₹50,000 per financial year

The Rules of TDS Deduction:

1. Aggregated PAN Tracking: The ₹40,000/₹50,000 limit is calculated per bank, not per account or per branch. If you hold three separate FDs of ₹2 Lakhs each across three branches of State Bank of India, SBI links them under your single Customer Information File (CIF) and PAN. If your combined interest exceeds ₹40,000, TDS is deducted proportionally across all accounts.
2. Standard Rate (10%): If your PAN is validly linked to the bank account, TDS is deducted at 10%. No surcharge or health and education cess is added to this baseline deduction.
3. The Non-PAN Penalty (20%): Under Section 206AA, if you fail to furnish a valid PAN to the bank, TDS is deducted at a penal rate of 20%. Furthermore, you will receive zero credit on your Form 26AS.

The Dangerous Fallacy: “TDS Deducted = Tax Settled”

The most prevalent mistake made by middle-class and salaried investors is assuming that bank TDS represents full and final tax settlement.

TDS is merely an interim withholding deposit made on your behalf. Your final tax liability is determined entirely by your total income and your applicable personal income tax slab rate.

Consider this real-world example:

A salaried corporate professional earning ₹18 Lakhs per year earns ₹1,00,000 in bank FD interest during FY 2024–25.

1. The bank sees interest exceeding ₹40,000 and deducts 10% TDS = ₹10,000.
2. The bank remits ₹10,000 to the central government and issues a Form 16A TDS certificate.
3. The depositor assumes their tax duty is finished.
4. The Reality: The investor sits in the 30% tax bracket under the New Tax Regime (or 30% under the Old Regime). Their actual statutory tax liability on that ₹1,00,000 interest is 30% + 4% cess = ₹31,200.
5. The bank paid ₹10,000. The investor still owes the government ₹21,200!

If this investor files their ITR without declaring the FD interest, the Centralized Processing Centre (CPC) flags the discrepancy using AIS and TIS and issues an automated tax demand for ₹21,200 plus mandatory interest under Section 234B and Section 234C.

       The Final Tax Settlement Equation
                       │
   Actual Tax on FD Interest (Slab Rate + 4% Cess)
                       │
              Less: TDS Deducted by Bank (10%)
                       ▼
       ┌───────────────────────────────┐
       ▼                               ▼
 [ Positive Balance ]          [ Negative Balance ]
  You owe deficit tax           You get a refund
  Pay via Challan 280           Credit via bank ECS

You can model your exact interest yield using our FD Calculator and compute your total slab tax liability using our Income Tax Calculator.

The Real Cost: Post-Tax Returns Across Income Slabs

To evaluate whether a fixed deposit makes economic sense for your portfolio, you must calculate its Post-Tax Yield:

Post-Tax Return = Headline FD Rate × (1 − Your Effective Tax Rate)

The Takeaway

For anyone earning more than ₹12 Lakhs per annum, a standard 7.25% bank FD delivers a negative real return. Every year your money sits in that deposit, its purchasing power relative to everyday living expenses quietly shrinks.

Form 15G and Form 15H: How to Avoid Unnecessary TDS

If your total annual income is below the taxable threshold, you do not have to let the bank deduct 10% TDS and wait twelve months for a tax refund. You can submit a self-declaration in Form 15G or Form 15H.

┌─────────────────────────────────────────────────────────────┐
│                 FORM 15G vs. FORM 15H                       │
├──────────────────────────────┬──────────────────────────────┤
│           FORM 15G           │           FORM 15H           │
├──────────────────────────────┼──────────────────────────────┤
│ • For individuals < 60 yrs   │ • For Senior Citizens (≥ 60) │
│ • Final tax liability = ₹0   │ • Final tax liability = ₹0   │
│ • Total interest CANNOT      │ • Total interest CAN exceed  │
│   exceed basic exemption     │   basic exemption, as long   │
│   limit (₹2.5L / ₹3L)        │   as net taxable tax is ₹0   │
└──────────────────────────────┴──────────────────────────────┘

The Conditions for Form 15G (Non-Senior Citizens):

1. The applicant must be an individual or HUF resident in India aged below 60 years.
2. The final calculated tax on your total estimated income for the financial year must be zero.
3. The Catch: The aggregate interest income from all sources during the year cannot exceed the basic exemption limit (₹2,50,000 under Old Regime / ₹3,00,000 under New Regime). If your total interest is ₹3,20,000, you are legally disqualified from submitting Form 15G, even if your net tax liability is zero due to Chapter VI-A deductions!

The Conditions for Form 15H (Senior Citizens):

1. The applicant must be a resident individual aged 60 years or older.
2. The final tax liability on their estimated total income must be zero.
3. No Interest Ceiling: Unlike Form 15G, senior citizens can submit Form 15H even if their interest income exceeds ₹3,00,000 or ₹5,00,000, provided their net taxable income after deductions leaves them with zero net tax payable.

When to Submit:

Form 15G and 15H are valid for one financial year only. You must submit fresh forms to your bank every year in April (the first month of the financial year). If you submit in July after the bank has already executed its Q1 June 30th TDS deduction, the bank cannot reverse the deducted tax; you will have to claim it back by filing your ITR.

Tax Breaks for Senior Citizens: Section 80TTB

Recognizing that retirees rely heavily on fixed deposit interest for sustenance, the Income Tax Department provides a dedicated deduction under Section 80TTB:

• Eligible Taxpayers: Resident individuals aged 60 years or older.
• Maximum Deduction: Up to ₹50,000 per financial year.
• Eligible Incomes: Interest earned on savings bank accounts, bank fixed deposits, recurring deposits, and post office deposit schemes.
• TDS Alignment: Under Section 194A, banks do not deduct TDS on senior citizen interest until total interest crosses ₹50,000, perfectly matching the 80TTB deduction window!

(Note: Section 80TTB is available primarily under the Old Tax Regime. For non-senior citizens under the Old Regime, Section 80TTA provides a deduction of up to ₹10,000, but strictly for savings bank interest—FD interest is entirely excluded from 80TTA).

5-Year Tax-Saving FDs: The Illusory Tax Saver

Many investors lock money into a 5-Year Tax-Saving Fixed Deposit to claim a deduction under Section 80C.

While the principal investment (up to ₹1,50,000) qualifies for an 80C tax deduction under the Old Tax Regime, you must recognize two critical drawbacks:

1. Mandatory 5-Year Lock-In: You cannot prematurely withdraw, break, or take a loan against a tax-saving FD under any circumstances.
2. Interest is 100% Taxable: The Section 80C deduction applies only to the principal deposit. Every rupee of interest earned over those five years is fully taxable at your applicable slab rate every single year on an accrual basis!

If you sit in the 30% tax bracket, investing in a 5-year lock-in product that yields an effective post-tax return of 5% is mathematically inferior to market-linked alternatives like Equity Linked Savings Schemes (ELSS) or Public Provident Fund (PPF). Compare options in our ELSS vs PPF Guide.

Smarter Alternatives for High-Tax Bracket Investors

If your taxable income exceeds ₹10 Lakhs or ₹15 Lakhs, parking long-term capital in bank FDs results in severe tax erosion. Consider these tax-efficient alternatives for cash reserves:

        Fixed Deposit Alternatives by Tax Slab
                          │
  ┌───────────────────────┴───────────────────────┐
  ▼                                               ▼
Below 10% Slab:                                 Above 20% Slab:
Bank FDs & POTD                                 Arbitrage Funds / Multi-Asset
(Full safety, low tax drag)                     (Equity taxation: 12.5% LTCG)

1. Arbitrage Mutual Funds: Arbitrage funds generate returns by simultaneously buying in the cash equity market and selling in the futures market, capturing the risk-free price spread. Returns are historically comparable to short-term FDs (6.5%–7.2%), but they are taxed as Equity Mutual Funds (Short-term capital gains at 20%; Long-term capital gains at 12.5% after ₹1.25 Lakh annual exemption).
2. Public Provident Fund (PPF): Offers 7.1% interest backed by sovereign guarantee with complete EEE status (Exempt on deposit, Exempt on interest, Exempt on maturity).
3. Senior Citizen Savings Scheme (SCSS): Offers significantly higher government-notified interest rates (historically 8.2%) with quarterly payouts, making it vastly superior to commercial bank FDs for retirees. Compare in our SCSS vs Fixed Deposit Guide.

Frequently Asked Questions