FD Tax Calculator
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Fixed Deposits (FDs) and Recurring Deposits (RDs) are among the most popular savings instruments in India, offering guaranteed returns from banks and post offices. However, the interest earned on FDs and RDs is fully taxable as 'Income from Other Sources' at the depositor's applicable income tax slab rate — making the post-tax effective return significantly lower than the advertised interest rate. TDS (Tax Deducted at Source) is deducted at 10% if the interest from a single bank's FD exceeds ₹40,000 in a financial year for regular depositors (₹50,000 for senior citizens aged 60+). If you do not have a PAN, TDS is deducted at 20%. TDS is not a final tax — it is just an advance payment. If your total income is below the taxable limit, you can avoid TDS by submitting Form 15G (non-senior citizens) or Form 15H (senior citizens) at the beginning of the financial year. Under Section 80TTB, senior citizens can claim a deduction of up to ₹50,000 on interest income from savings accounts, FDs, and RDs under the old tax regime. Recurring Deposits are taxed identically to FDs — the accumulated interest (credited at maturity) is taxed at your slab rate for the year in which it is credited. Understanding FD tax treatment allows you to calculate the effective post-tax yield and compare it accurately with other instruments like debt mutual funds, PPF, and NSC.
Post-Tax FD Return = FD Interest Rate × (1 - Tax Rate) | Effective Rate = [M/P]^(1/n) - 1, then × (1 - tax rate)
- 1Determine the FD interest rate and compounding frequency (usually quarterly for bank FDs).
- 2Calculate gross interest earned over the FD tenure using the compound interest formula: M = P × (1 + r/n)^(n×t).
- 3Identify your applicable income tax slab rate (5%, 20%, or 30% under old regime; or new regime equivalent).
- 4Compute TDS deducted by the bank — 10% of interest if interest exceeds ₹40,000/year (₹50,000 for senior citizens).
- 5Check if Form 15G/15H is applicable — if your total taxable income is below the basic exemption limit, submit these forms to prevent TDS deduction.
- 6If TDS was deducted, it appears in Form 26AS and can be claimed as a credit in your ITR to get a refund if total tax liability is less than TDS.
- 7Compute the effective post-tax interest rate: effective rate = FD rate × (1 - marginal tax rate). Compare this against PPF (7.1% tax-free), NSC (7.7% minus tax), and debt mutual funds.
80TTB makes FD completely tax-free for senior citizens with interest up to ₹50,000
FD interest = 5L × 8% = ₹40,000. Under Section 80TTB (old regime), senior citizens can deduct up to ₹50,000 of interest income from all deposits. Since interest (₹40,000) < ₹50,000 limit, the entire interest is deductible. Net tax on FD interest = NIL. Effective yield = 8% tax-free.
Effective post-tax rate = 7.5% × (1-30%) = 5.25%; TDS is an advance; balance paid during ITR filing
Gross interest = 7.5% of 10L = ₹75,000. Tax at 30% = ₹22,500. TDS already deducted = ₹7,500. Additional tax to pay via ITR = ₹15,000. Net interest received = 75,000 - 22,500 = ₹52,500. Effective rate = 52,500/10,00,000 = 5.25%.
Form 15G prevents TDS deduction when total income is below taxable limit
Interest = 6.5% of 8L = ₹52,000. Total income including interest = ₹3,32,000. Under new regime, up to ₹3L is exempt; rebate u/s 87A covers the remaining ₹32,000 (new regime tax would be ₹1,600 — within ₹25,000 rebate limit). Submit Form 15G at start of FY to prevent TDS.
Tax-saving FD is 5-year lock-in; 80C deduction only on principal, not interest
80C deduction on ₹1.5L at 20% rate saves ₹30,000 upfront. Each year's interest (approx ₹10,500 in Year 1) is taxable at 20% = ₹2,100 additional tax. Net effective yield accounting for tax saving and interest tax ≈ 5.6% post-tax.
Mortgage lenders and loan officers use Fd Tax Calculator to structure repayment schedules, compare fixed versus adjustable rate options, and calculate total borrowing costs for residential and commercial real estate transactions across different term lengths.
Personal finance advisors apply Fd Tax Calculator when counseling clients on debt reduction strategies, comparing the mathematical benefit of accelerated payments against alternative investment returns to determine the optimal allocation of surplus cash flow.
Credit unions and community banks rely on Fd Tax Calculator to generate accurate Truth in Lending disclosures, ensure regulatory compliance with TILA and RESPA requirements, and provide borrowers with standardized cost comparisons across competing loan products.
Corporate treasury departments use Fd Tax Calculator to model the cost of revolving credit facilities, term loans, and commercial paper programs, optimizing the company's capital structure and minimizing weighted average cost of debt financing.
Zero or negative interest rate
In practice, this edge case requires careful consideration because standard assumptions may not hold. When encountering this scenario in fd tax calculatorulator calculations, practitioners should verify boundary conditions, check for division-by-zero risks, and consider whether the model's assumptions remain valid under these extreme conditions.
Balloon payment at maturity
In practice, this edge case requires careful consideration because standard assumptions may not hold. When encountering this scenario in fd tax calculatorulator calculations, practitioners should verify boundary conditions, check for division-by-zero risks, and consider whether the model's assumptions remain valid under these extreme conditions.
Variable rate mid-term adjustment
In practice, this edge case requires careful consideration because standard assumptions may not hold. When encountering this scenario in fd tax calculatorulator calculations, practitioners should verify boundary conditions, check for division-by-zero risks, and consider whether the model's assumptions remain valid under these extreme conditions.
TDS Credit Mismatch in Form 26AS
Sometimes TDS deducted by a bank does not reflect correctly in Form 26AS due to delayed filing of TDS returns by the bank. If TDS is missing in 26AS, you may face difficulty claiming the credit in your ITR. Follow up with the bank's TDS department to correct the mismatch before the filing deadline.
| Tax Bracket | Gross FD Rate | Effective Post-Tax Rate | Net Interest on ₹10L/year |
|---|---|---|---|
| 0% (below exemption) | 7.5% | 7.5% | ₹75,000 |
| 5% (old regime, up to ₹5L) | 7.5% | 7.125% | ₹71,250 |
| 20% (old regime, ₹5-10L) | 7.5% | 6.0% | ₹60,000 |
| 30% (old regime, above ₹10L) | 7.5% | 5.25% | ₹52,500 |
| Senior Citizen (80TTB up to ₹50K) | 7.5% | 7.5% on first ₹50K | ₹67,500 (after 80TTB) |
What is the TDS threshold for FD interest in FY 2024-25?
TDS is deducted at 10% if your total FD interest from a single bank branch exceeds ₹40,000 in a financial year for regular depositors. For senior citizens (60+), the threshold is ₹50,000. If you do not have PAN, TDS is deducted at 20%. The threshold applies per bank, not per FD — you can have multiple FDs at the same bank and TDS triggers when total interest crosses the limit.
What is Form 15G and who can submit it?
Form 15G is a self-declaration that your estimated total income for the financial year is below the taxable limit and that you are not liable to pay income tax. Individuals and HUFs below 60 years of age can submit Form 15G. Senior citizens (60+) submit Form 15H. It must be submitted at the beginning of the financial year to the bank. The bank is then legally obliged not to deduct TDS. Note: submitting 15G when you are actually taxable is a punishable offence.
Is RD interest taxed the same way as FD interest?
Yes. Recurring Deposit interest is taxed exactly like FD interest — as 'Income from Other Sources' at your applicable slab rate. TDS is deducted by the bank if total RD interest exceeds ₹40,000 per year (₹50,000 for senior citizens). Submitting Form 15G/15H also works for RDs. Unlike PPF, neither FD nor RD has any tax-free status.
What is Section 80TTB for senior citizens?
Section 80TTB allows senior citizens (60+) to claim a deduction of up to ₹50,000 on interest income from savings accounts, FDs, RDs, and post office deposits under the old tax regime. This effectively makes the first ₹50,000 of total deposit interest tax-free for senior citizens. This deduction is not available under the new tax regime.
What is a 5-year tax-saving FD?
A 5-year tax-saving FD (also called 80C FD or ELSS FD) qualifies for Section 80C deduction up to ₹1.5 lakh per year under the old tax regime. It has a mandatory 5-year lock-in (no premature withdrawal). The interest earned is taxable at your slab rate. Banks and post offices offer this product; interest rates are typically the same as regular FDs.
How does TDS on FD appear in my ITR?
TDS deducted by the bank appears in your Form 26AS and Annual Information Statement (AIS) on the income tax portal. When filing your ITR, you declare the full interest as income and claim the TDS as a tax credit. If TDS deducted exceeds your actual tax liability, you receive a refund with 6% interest per annum (Section 244A) for delays beyond the assessment year.
Are post office FDs taxed the same as bank FDs?
Yes, interest on post office Time Deposits (FDs) is taxable as 'Income from Other Sources' at your slab rate. However, under the old tax regime, interest on post office savings bank accounts (not FDs) qualifies for Section 80TTA deduction up to ₹10,000 for non-senior citizens. TDS is also deducted by post offices if interest exceeds the threshold.
Is it better to invest in an FD or a debt mutual fund in the 30% tax bracket?
In the 30% tax bracket, FD post-tax return at 7.5% is only 5.25%. Debt mutual fund returns at 7-8% are now also taxed at the slab rate (indexation benefit removed since April 2023), making them similarly taxed. However, debt mutual funds may offer slightly better returns due to mark-to-market capital appreciation and SWP options. Compare actual post-tax returns using a calculator.
Pro Tip
For optimal post-tax FD returns: senior citizens should file under the old regime and claim 80TTB to make FD interest up to ₹50,000 tax-free. Non-senior citizens in the 30% bracket should consider PPF (for long-term EEE status), SCSS (for high rate + 80C), or government bonds over FDs for tax efficiency.
Did you know?
India has over ₹200 lakh crore in bank deposits, with Fixed Deposits accounting for a majority of this amount. Despite mutual funds growing rapidly, FDs remain the single largest savings instrument for Indian households due to their simplicity, guaranteed returns, and trust in the banking system.