A few years back, I logged into my bank account expecting to see a nice little bump from the interest on my fixed deposits. Instead, I noticed the amount credited was lower than what I had calculated. I stared at the statement for a good five minutes thinking the bank had made an error.
Turns out, there was no error. The bank had quietly deducted TDS (Tax Deducted at Source) on my FD interest. Nobody had warned me, nobody had explained it, and I had no idea this was even a thing until it hit my account.
That one moment sent me down a rabbit hole of understanding how FD interest is actually taxed in India, and more importantly, what I could legally do to reduce that tax bite. I’m not a CA or a tax consultant — just someone who manages a handful of FDs across two banks and a post office account, and who learned most of this the hard way.
If you’re someone who parks money in fixed deposits because they feel “safe” (which they are, for the principal at least), but you’re surprised every year by how much tax eats into your returns, this article is for you.
About FD Interest
A lot of people assume FD interest is “tax-free” or that tax is only an issue if the bank deducts TDS. That’s not true.
FD interest is fully taxable as per your income tax slab. It gets added to your total income under “Income from Other Sources” and taxed accordingly — whether TDS was deducted or not.
So even if your interest is, say, ₹25,000 in a year and no TDS was cut (because it’s below the threshold), you’re still supposed to declare it and pay tax on it if you fall in a taxable slab.
This was honestly the part that confused me the most in the beginning. I thought “no TDS means no tax.” Wrong. TDS is just the bank’s way of collecting tax in advance on your behalf — it’s not the final word on your tax liability.
How TDS on FD Actually Works (The Part Nobody Explains Clearly)
Here’s the basic rule as it currently stands for most individuals:
- If your total FD interest from a bank crosses ₹40,000 in a financial year (₹50,000 for senior citizens), the bank deducts 10% TDS.
- This limit is calculated per bank, not across all your FDs everywhere. So if you have FDs worth ₹35,000 interest in Bank A and ₹35,000 in Bank B, neither bank deducts TDS — even though your total is ₹70,000.
- If you haven’t linked your PAN with the bank, TDS can jump to 20%.
This per-bank calculation is actually one of the (legal) tricks people use, which I’ll get into later.
My First Mistake: Ignoring Form 15G
When I started working with a slightly higher income, I assumed I was automatically in the “TDS deducted” zone, so I never bothered with Form 15G.
A couple of years later, when my income dropped significantly (I had taken a break between jobs), my total income for that year was actually below the basic exemption limit. Technically, I didn’t owe any tax that year. But because I hadn’t submitted Form 15G to my bank, they deducted TDS anyway on my FD interest.
I had to claim that money back through my income tax return — which I eventually did, but it took months for the refund to process. That’s money sitting with the government instead of in my pocket, for no reason.
What Form 15G/15H Actually Does
Form 15G (for individuals below 60) and Form 15H (for senior citizens, 60+) are self-declaration forms you submit to your bank stating that your total income for the year is below the taxable limit, so the bank should NOT deduct TDS on your FD interest.
This is completely legal — it’s literally a provision built into the Income Tax Act for exactly this situation. You’re not avoiding tax; you’re avoiding unnecessary TDS deduction when you don’t owe tax in the first place.
Important: If your income IS above the taxable limit and you submit a false 15G/15H just to avoid TDS, that’s a problem and can attract penalties. This form is only for people whose income genuinely falls below the basic exemption limit (and who meet the other conditions, like total interest income not exceeding the basic exemption threshold).
Step-by-Step: How to Submit Form 15G/15H
- Log into your bank’s net banking or mobile app (I’ve done this on HDFC NetBanking, SBI YONO, and ICICI iMobile — all have this option).
- Look for “Tax” or “Forms” section — usually under “Service Requests” or “Fixed Deposits.“
- Select Form 15G (or 15H if you’re a senior citizen).
- Fill in your PAN, estimated total income for the year, and FD details.
- Submit it digitally (most banks now accept this via OTP-based e-sign).
- Do this at the START of the financial year — April is ideal — for every FD account and every bank where you hold FDs.
If you do this online, you’ll usually get an acknowledgment number. Keep that, just in case.
The Per-Bank TDS Threshold Trick (Legal, But Use It Sensibly)
Since the TDS threshold of ₹40,000 (or ₹50,000 for seniors) is calculated separately for each bank, some people spread their FDs across multiple banks specifically to stay under this limit at each institution.
For example, instead of putting ₹15 lakh in one FD with one bank (which would generate way more than ₹40,000 interest and trigger TDS), you could split it across 3-4 banks.
I want to be honest here — this doesn’t reduce your actual tax liability. You still owe tax on the total interest earned, regardless of TDS. What it does is:
- Improve your cash flow (no TDS deducted upfront)
- Reduce the hassle of claiming refunds
- Give you more control over WHEN you pay tax (you pay it when filing ITR, possibly with some breathing room)
If your income is genuinely below the taxable limit, this combined with Form 15G means zero TDS hassle and zero refund-claiming headache.
The Legal Way to SAVE Tax: Tax-Saving Fixed Deposits (5-Year FD under Section 80C)
This is the one most people actually mean when they search “how to save tax on FD.”
A regular FD doesn’t give you any deduction. But a Tax-Saving Fixed Deposit (sometimes called a 5-year FD) lets you claim a deduction under Section 80C, up to ₹1.5 lakh per financial year (this ₹1.5 lakh limit is shared across all your 80C investments — PF, ELSS, life insurance premiums, etc., not exclusive to FDs).
I opened one of these at my bank a few years ago when I realized I hadn’t used up my full 80C limit and didn’t want to lock money into ELSS or insurance.
How It Works in Practice
- You deposit a lump sum (minimum amounts vary by bank, usually ₹100 or ₹1,000 onwards, up to ₹1.5 lakh for the 80C benefit)
- The lock-in period is 5 years — you genuinely cannot withdraw before that, not even with a penalty (unlike regular FDs)
- The deposit amount qualifies for deduction under Section 80C in the year you make the deposit
- BUT — and this is the part people often miss — the INTEREST earned on this FD is still fully taxable every year. The tax saving is only on the principal deposit, not the interest.
So if you put ₹1.5 lakh into a tax-saving FD, you reduce your taxable income by ₹1.5 lakh (subject to overall 80C limit), but the interest you earn each year on that ₹1.5 lakh still gets added to your income and taxed.
Step-by-Step: Opening a Tax-Saving FD
- Visit your bank’s FD section (most major banks — SBI, HDFC, ICICI, Axis, Bank of Baroda, etc. — offer this)
- Specifically select “Tax Saving FD” or “Tax Saver Deposit” — don’t pick a regular FD by mistake, because regular FDs don’t qualify for 80C
- Choose the amount (keep your total 80C investments for the year in mind — don’t exceed ₹1.5 lakh combined across all instruments unnecessarily)
- Select the 5-year tenure (it’s fixed for tax-saver FDs, you can’t choose shorter)
- Choose cumulative (interest paid at maturity) or non-cumulative (interest paid periodically) based on whether you need regular income
- Keep the certificate/receipt — you’ll need to mention this investment when filing your ITR under the 80C section
My Honest Take on Tax-Saving FDs
I’ll be straight with you — the interest rates on tax-saving FDs aren’t usually higher than regular FDs, and sometimes they’re the same or even slightly lower. The only “benefit” is the 80C deduction on the principal.
If you’re someone who has already exhausted your 80C limit through PF, ELSS, or insurance, a tax-saving FD won’t add extra value — it’ll just lock your money for 5 years for no additional tax benefit.
It makes sense mainly for people who:
- Haven’t used their full ₹1.5 lakh 80C limit
- Want a low-risk, guaranteed-return option (compared to ELSS which is market-linked)
- Don’t mind the 5-year lock-in
Senior Citizens Have an Extra Tool: Section 80TTB
If you’re filing taxes for a parent or grandparent who’s a senior citizen (60+), there’s a deduction under Section 80TTB that’s often overlooked.
Senior citizens can claim a deduction of up to ₹50,000 on interest income from deposits (savings accounts, FDs, recurring deposits) held with banks, post offices, or co-operative banks.
I helped my father with his ITR last year and we realized he’d been missing out on this for two years simply because his previous tax filer (a local agent) hadn’t applied it. Once we claimed it, his taxable interest income dropped by a full ₹50,000 — which made a noticeable difference to his final tax.
Quick note: Section 80TTB is only for senior citizens. For people below 60, there’s a separate (and much smaller) deduction under Section 80TTA — ₹10,000, and that applies only to savings account interest, NOT fixed deposit interest. This is something a lot of people get confused about.
Splitting FDs Between Family Members (Legal, With a Big Caveat)
Some people put FDs in the name of a spouse or parent who’s in a lower tax bracket (or has no taxable income at all), thinking this reduces the overall tax burden on the family.
This CAN work, but only if the money genuinely belongs to that person, or if it’s a gift that’s properly given.
Here’s the catch — under the clubbing of income provisions (Section 64), if you gift money to your spouse and they invest it in an FD, the interest earned is clubbed back into YOUR income for tax purposes, not theirs. So this particular move doesn’t actually save tax if done with a spouse.
However, gifting money to your parents (especially senior citizen parents who may have lower or no other income) and letting them invest it in their own name does NOT attract clubbing provisions in most cases — because clubbing rules under Section 64 specifically apply to spouse and minor children, not parents.
So if you have surplus funds and your parents are in a lower tax bracket (or below taxable limit), gifting them money to invest in FDs in their own name can genuinely result in lower overall family tax — and they also get the 80TTB benefit mentioned earlier.
I did this with a portion of my savings — gifted some money to my mother, who then opened an FD in her name. Since her total income (pension + this FD interest) stays below the taxable limit after the 80TTB deduction, there’s effectively no tax on that interest at all. Completely legal, and it’s genuinely her money once gifted (important point — don’t treat it as “your money parked elsewhere,” because legally it isn’t anymore).
Timing Your FD Maturity Across Financial Years
This one’s a bit more advanced, but it’s helped me smooth out my tax situation in years where my income was fluctuating.
FD interest can be taxed on either:
- Accrual basis — interest is taxed each year as it accrues, even if not paid out (this is how cumulative FDs are typically taxed, and most banks report it this way in Form 26AS / AIS)
- Receipt basis — taxed in the year you actually receive it (less common for individuals, but some people choose this consistently)
If you’re someone whose income varies year to year (freelancers, business owners, people between jobs), you can plan FD tenures so that the maturity (and the bulk of accrued interest) falls in a year where your overall income is lower — meaning the interest gets taxed at a lower slab.
For example, I once had a FD maturing right when I knew I’d be taking a 3-month career break. I structured a new FD to mature during that lower-income period rather than during a high-earning year. The interest on that FD effectively got taxed at a lower rate because my overall income for that year was lower.
This isn’t “avoiding” tax — it’s just smart timing within the rules, similar to how people time bonuses or capital gains.
Don’t Forget: Check Form 26AS and AIS Before Filing
One thing I do religiously every year now (after getting burned once by a mismatch) is check my Form 26AS and Annual Information Statement (AIS) on the income tax portal (incometax.gov.in) before filing my return.
These documents show all the TDS deducted on your behalf, including FD interest TDS from every bank. I once had a situation where one bank had reported slightly different interest figures than what I’d calculated myself — turned out they’d included interest from an FD I’d forgotten about (opened years ago, auto-renewed every year).
Step-by-Step: Checking Your FD Interest Before Filing ITR
- Log into incometax.gov.in with your PAN
- Go to “Annual Information Statement (AIS)” under the “Services” tab
- Look for “Interest from Deposits” — this lists interest reported by each bank against your PAN
- Cross-check this with your own bank statements/FD certificates
- If everything matches, use these figures while filling the “Income from Other Sources” section in your ITR
- If TDS was deducted, it’ll automatically be available as credit when you file — make sure your ITR reflects the correct TDS claimed
I personally use the income tax portal’s own utility for simple returns, but for years when things get complicated (multiple FDs, capital gains, etc.), I’ve used ClearTax to double-check calculations before final submission.
Common Mistakes I See (And Made Myself)
1. Assuming “no TDS = no tax” This was my biggest one. Even if TDS isn’t deducted, the interest is still taxable income that needs to be declared.
2. Forgetting to submit Form 15G/15H every year This isn’t a one-time thing. You need to submit it at the start of every financial year for it to apply.
3. Confusing Tax-Saving FD with regular FD People sometimes walk into a bank, ask for “tax saving FD,” but end up with a regular 5-year FD that doesn’t actually qualify for 80C because they didn’t specify the correct product code.
4. Thinking the 80C deduction applies to interest too It doesn’t. Only the principal deposit (up to ₹1.5 lakh) is deductible. Interest is taxed normally every year.
5. Not declaring interest from old/forgotten FDs Banks auto-renew FDs, and people forget about small FDs opened years ago. These still generate interest that gets reported against your PAN in AIS — and if you don’t declare it, it creates a mismatch that can trigger a notice.
6. Putting all FDs in one bank when trying to avoid TDS If you’re trying to manage TDS via the per-bank threshold, having everything in one bank defeats the purpose.
7. Using a spouse’s name to “save tax” without understanding clubbing rules As explained earlier, this often doesn’t work the way people think due to Section 64.
8. Missing 80TTB for senior citizens A genuinely useful deduction that gets overlooked, especially when senior citizens file their own returns without professional help.
A Quick Checklist for Every Financial Year
Here’s roughly what I now do every April-May, and what I’d suggest if you want to stay on top of FD taxation:
Before filing ITR, cross-check AIS/Form 26AS against your own records
Submit Form 15G/15H to every bank where you hold FDs (if eligible)
Review whether you’ve used your full ₹1.5 lakh 80C limit — if not, consider a tax-saving FD only if it genuinely fits your plan
List out all your FDs (including small, forgotten, auto-renewed ones) and their expected interest for the year
If income is fluctuating, think about FD tenures and maturity timing
For senior citizen family members, make sure 80TTB is being claimed
1. How can I save tax on Fixed Deposits?
You can save tax using tax-saving FDs, Form 15G/15H, splitting deposits, and investing in family members’ names.
2. Is FD interest tax-free?
No, FD interest is fully taxable as per your income slab.
3. How to avoid TDS on FD interest?
Submit Form 15G or 15H if your income is below taxable limit.
4. What is the limit for tax-saving FD?
Up to ₹1.5 lakh deduction under Section 80C.
5. Which is better: FD or PPF for tax saving?
PPF is better for tax-free returns, while FD offers guaranteed but taxable income.
