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Savings & Banking8 min readUpdated August 2026

Fixed Deposit vs. Recurring Deposit (2026) — FD vs RD Formulas, Yield Math & Sinking Fund Rules

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Fixed Deposit vs. Recurring Deposit (2026) — FD vs RD Formulas, Yield Math & Sinking Fund Rules
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Key Takeaways

  • The Capital Structure Distinction: A Fixed Deposit (FD) is designed for lump-sum capital deployment where the entire principal compounds from Day 1; a Recurring Deposit (RD) is a systematic cash flow accumulator where monthly installments earn interest for decreasing time horizons.
  • The Compounding Asymmetry: Although banks offer identical headline interest rates (e.g. 7.50%) on 1-year FDs and 1-year RDs, deploying ₹1,20,000 as an upfront FD earns ~₹9,260 in gross interest, while depositing ₹10,000 monthly in an RD earns only ~₹4,940 due to staggered capital exposure.
  • Identical Tax & TDS Treatment: Interest from both FDs and RDs is taxed under "Income from Other Sources" at your applicable slab rate, with Section 194A TDS triggering at ₹40,000 for regular individuals (₹50,000 for senior citizens eligible for Section 80TTB exemptions).

For generations of Indian savers, Fixed Deposits (FDs) and Recurring Deposits (RDs) have served as the foundational pillars of capital preservation.

Whether funding a child's school fees or parking an annual corporate bonus, these instruments provide sovereign and RBI-backed guaranteed returns.

However, utilizing the wrong instrument for your cash flow profile results in substantial interest loss or liquidity bottlenecks.

This guide provides an institutional mathematical comparison of Fixed Deposits versus Recurring Deposits, discrete compounding equations, worked numerical schedules, and tax strategies for 2026.


1. Head-to-Head Comparison: Fixed Deposit (FD) vs. Recurring Deposit (RD)

Fixed Deposit (Lump-Sum Lock)Windfall / Capital Anchor
Recurring Deposit (Monthly Systematic)Cash Flow / Sinking Fund

Initial Capital Requirement

Fixed Deposit (Lump-Sum Lock)
Single Upfront Lump-Sum Deposit (e.g. ₹1,00,000)
Recurring Deposit (Monthly Systematic)
Fixed Monthly Installment (e.g. ₹5,000/Month)

Interest Accrual Mechanics

Fixed Deposit (Lump-Sum Lock)
Entire principal compounds from Day 1
Recurring Deposit (Monthly Systematic)
Each installment earns interest for remaining months

Maturity Yield on Equal Capital

Fixed Deposit (Lump-Sum Lock)
Higher Absolute Interest Yield (~1.8x of RD)
Recurring Deposit (Monthly Systematic)
Lower Absolute Interest Yield (~0.55x of FD)

Best Operational Use-Case

Fixed Deposit (Lump-Sum Lock)
Bonuses, asset sale proceeds & emergency fund
Recurring Deposit (Monthly Systematic)
Annual insurance premiums, school fees & vacations

Premature Liquidation Penalty

Fixed Deposit (Lump-Sum Lock)
Typically 0.50% to 1.00% penal interest rate cut
Recurring Deposit (Monthly Systematic)
Typically 0.50% to 1.00% penal cut on active term

Section 194A TDS Applicability

Fixed Deposit (Lump-Sum Lock)
10% TDS if aggregate annual interest > ₹40,000
Recurring Deposit (Monthly Systematic)
10% TDS if aggregate annual interest > ₹40,000

2. Interactive Compound Interest & Term Deposit Engine

Simulate the difference in interest compounding between lump-sum deposits and regular installment accumulations:

Interactive Calculator
Open Full Tool

3. The Core FD and RD Compounding Equations

Indian commercial banks compute FD and RD maturity values using quarterly discrete compounding:

Fixed Deposit (FD) Quarterly Compounding Formula

Statutory Mathematical Model
Mathematical Equation
A_FD = P × (1 + r ÷ 4)^(4 × t)

Recurring Deposit (RD) Maturity Summation Equation

Statutory Mathematical Model
Mathematical Equation
M_RD = P × ∑ [(1 + r ÷ 4)^(4 × (n - i + 1) ÷ 12)]

4. Worked ₹ Case Study: ₹1,20,000 Annual Capital Deployment

Let us evaluate the exact mathematical returns of an investor deploying ₹1,20,000 total capital over a 1-year horizon at 7.50% interest p.a. across three distinct savings methods:

Term Deposit Comparison Schedule: ₹1,20,000 Capital over 1 Year (₹)

Comparative Returns at 7.50% p.a. Compounded Quarterly vs 3.50% Savings Account

Deposit Instrument & StrategyCapital Timing & InflowGross Maturity Value (₹)Total Interest Earned (₹)Post-Tax Return (31.2% Slab)
Standard Savings Account₹1,20,000.00 Lump-Sum₹1,24,200.00₹4,200.00₹2,890.00 (Tax-Free up to ₹10K 80TTA)
1-Year Recurring Deposit (RD)₹10,000.00 Monthly₹1,24,940.00₹4,940.00₹3,399.00 Post-Tax Yield
1-Year Fixed Deposit (FD)₹1,20,000.00 Upfront Lump-Sum₹1,29,260.00₹9,260.00₹6,371.00 Post-Tax Yield
Net Advantage of Upfront FDUpfront vs Installments+₹4,320.00 Higher Maturity+₹4,320.00 (87.4% Higher Interest)+₹2,972.00 Net In-Hand Alpha

5. The RD "Sinking Fund" Strategy for Planned Expenses

While an FD delivers higher absolute returns on lump-sum cash, the Recurring Deposit is the premier tool for Sinking Funds (pre-funding non-monthly mandatory liabilities):

  1. Calculate the Annual Target: Identify lumpy annual obligations (e.g. ₹36,000 car insurance + ₹60,000 school tuition = ₹96,000 total).
  2. Automate the Monthly RD: Divide total liability by 12 (₹8,000/month) and set up an automated standing instruction on salary day.
  3. Maturity Alignment: Align the RD maturity date 15 days before the bill due date. The obligation is serviced effortlessly from accumulated principal and interest without touching credit cards or emergency funds.

6. Taxation, TDS & Section 80TTB Rules (FY 2026-27)

Under Income Tax Act guidelines:

  1. Section 194A TDS Thresholds: Banks deduct 10% TDS (20% if PAN is unlinked) if total interest across all branches of the bank exceeds ₹40,000 for regular taxpayers or ₹50,000 for senior citizens.
  2. Section 80TTB Senior Citizen Exemption: Taxpayers aged 60 and above can claim a deduction of up to ₹50,000 on term deposit interest under Section 80TTB.
  3. Form 15G / 15H: If your total annual taxable income is below the basic exemption threshold, submit Form 15G (Form 15H for senior citizens) at the start of the financial year to prevent TDS deduction.

Frequently Asked Questions

Why does an FD give higher interest than an RD with the same total investment?

In an FD, the entire lump sum begins earning compound interest on Day 1. In an RD, you deposit money in monthly installments, meaning only the first installment earns interest for the full 12 months, while the final installment earns interest for only 1 month.

Is interest on Recurring Deposits subject to TDS?

Yes. Under Section 194A, interest earned on Recurring Deposits is pooled with Fixed Deposit interest. If your aggregate term deposit interest in a bank exceeds ₹40,000 in a financial year (₹50,000 for senior citizens), 10% TDS is deducted.

Can I prematurely break a Fixed Deposit or Recurring Deposit?

Yes. Most commercial banks allow premature withdrawal of FDs and RDs, but they levy a penalty of 0.50% to 1.00% on the applicable interest rate for the actual duration the deposit was held.

What is a Sinking Fund and how does an RD help build one?

A Sinking Fund is money saved systematically to cover a known future expense (such as car insurance, home renovations, or annual school fees). An RD automates monthly contributions so the exact required sum is ready when the bill arrives.

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Myat Finance Editorial Team

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The Myat Finance editorial collective consists of financial analysts, quantitative modelers, and educators. Our mission is to make personal finance across India mathematically structured, transparent, and completely free from product mis-selling.

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