A well-planned investment can help you work towards two financial goals at once: growing your savings and reducing your taxable income. A tax-saving fixed deposit lets you claim a tax deduction while earning interest on your investment, provided you meet the applicable conditions. Understanding how the deduction works, how long your money remains invested and how the interest is taxed can help you decide whether this option suits your financial plans.
What is a Tax-Saving Fixed Deposit?

A tax-saving fixed deposit is a special type of bank deposit that may qualify for a tax deduction under Section 123 of the Income Tax Act, 2025, read with Schedule XV. To qualify, the deposit must meet the prescribed conditions, including a minimum tenure of five years. A regular online FD does not automatically qualify for this deduction simply because you keep it invested for five years.
The deduction is available only under the old tax regime, subject to the applicable rules. Taxpayers following the new tax regime cannot claim this deduction.
A tax-saving FD has a five-year lock-in period, meaning you must keep the investment in place for the required period. Eligible individuals and Hindu Undivided Families (HUFs) can claim the deduction, subject to the applicable conditions. The investment can form part of the combined deduction limit of INR 1.5 Lakh under Section 123.
How Does the Tax Deduction Work?
Section 123 of the Income Tax Act, 2025 allows eligible taxpayers to claim deductions for specified investments and payments listed in Schedule XV. The combined deduction is capped at INR 1.5 Lakh for the tax year. A qualifying tax-saving FD can count towards this limit, along with other eligible investments and payments.
Consider an example. Suppose you invest INR 1 Lakh in an eligible tax-saving FD and have another INR 80,000 invested in products that qualify under the same section. Your total eligible investments would amount to INR 1.8 Lakh. However, your deduction would be limited to INR 1.5 Lakh.
| Investment details | Amount |
| Investment in a qualifying tax-saving FD | INR 1,00,000 |
| Other eligible investments | INR 80,000 |
| Total eligible investments | INR 1,80,000 |
| Maximum deduction under Section 123 | INR 1,50,000 |
The deduction reduces your taxable income rather than providing a refund equal to the amount invested. Your actual tax saving depends on your applicable tax rate and overall tax position. You should therefore check how much of the deduction limit you have already used before making another investment.
Is the Interest Earned on a Tax-Saving FD Taxable?
Yes, the interest earned on a tax-saving FD is generally taxable under the head “Income from Other Sources”. The deduction available on the eligible investment and the tax treatment of the interest are separate matters.
For example, if you invest INR 1 Lakh in a qualifying tax-saving FD, you may claim a deduction for the eligible investment under Section 123, subject to the prescribed conditions. However, you must still include the interest earned on that deposit when calculating your taxable income.
Banks may deduct tax at source (TDS) when the applicable conditions and thresholds are met. TDS is an advance tax collection and does not necessarily equal your final tax liability. You must report taxable interest as required, even if the bank does not deduct TDS.
How Can You Choose the Right Tax-Saving FD?
The tax deduction is one part of the investment decision. You should also consider the interest rate, the bank offering the deposit and whether you can keep the money invested for the full lock-in period.
Before investing, compare the interest rates banks offer on eligible tax-saving deposits. Check whether the five-year lock-in fits your financial plans and whether you may need access to the money during that period. You should also review your existing eligible investments to calculate how much of the INR 1.5 Lakh deduction limit remains available.
The interest payout method also deserves attention. Banks may offer different options under their deposit terms, so review how they calculate and pay interest before selecting a product.
You should also check whether the bank is covered by the Deposit Insurance and Credit Guarantee Corporation (DICGC). Eligible deposits with insured banks are covered up to INR 5 Lakh per depositor per bank, including principal and interest, subject to the applicable rules.
Can You Compare FD Options Online?
An online FD comparison process can help you review available interest rates, tenures and issuer details before choosing a deposit. However, distinguish between regular FDs and tax-saving FDs, as not every deposit qualifies for the deduction under Section 123.
Reputed financial platforms such as JioFinance let users compare FD offers from partner banks and non-banking financial companies (NBFCs). Before booking, check the product details and confirm whether the deposit qualifies as an eligible five-year tax-saving bank FD under the prescribed scheme.
Compare the current rates and terms and confirm the deposit’s tax eligibility with the issuing bank before investing. An NBFC deposit does not qualify as a tax-saving bank FD simply because it offers a similar tenure or interest rate.
Conclusion
A tax-saving FD can help eligible taxpayers reduce their taxable income while earning interest over five years. Before investing, check your tax regime, remaining deduction limit, interest rate and lock-in requirements. Remember that the deduction on your investment and the tax on interest are separate matters. Compare eligible deposits carefully, review current terms and consider your future cash needs before committing your savings.