01
Enter your interest
Add your savings-account interest and any FD or deposit interest for the year.
80TTA & 80TTB Calculator
Tax-free deduction on your savings and deposit interest.
Updated Reviewed by Sajid Hussain· Editor
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80TTA & 80TTB bills sellers in Indian Rupee (INR), so this calculator works in INR — not your selected US Dollar ($). Every figure below matches your real 80TTA & 80TTB statement. Localised USD marketplaces are coming soon.
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June 14, 2026
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India Tax Tool
What Is an 80TTA / 80TTB Calculator?
An 80TTA/80TTB calculator shows the tax-free deduction on your interest income — ₹10,000 of savings interest under 60 (80TTA), or ₹50,000 of all deposit interest at 60 and above (80TTB) — and the tax it saves.
**It picks the right section by age.** Under 60 you get 80TTA on savings interest only; from 60 you get the far larger 80TTB on all deposit interest. The senior toggle switches the rule and the limit.
**It handles FD interest correctly.** A common mistake is claiming FD interest under 80TTA — it is not allowed. The calculator excludes FD interest for under-60s and flags that it stays fully taxable.
**It shows what stays taxable.** Interest above your limit is taxed at your slab. The calculator splits your interest into the deductible part and the taxable part, so there is no surprise at filing.
**It tells you the rupees saved.** Beyond the deduction, it shows the tax saved at your slab plus cess — the real benefit, especially large for FD-heavy seniors under 80TTB.
Quick facts
- 80TTA limit (under 60)
- ₹10,000
- 80TTB limit (60+)
- ₹50,000
- 80TTA covers
- Savings only
- 80TTB covers
- All deposits
- Regime
- Old regime only
- Free to use
- No sign-up needed
How It Works
Calculate Your Interest Deduction in Three Steps
02
Set age and slab
Turn on the senior toggle if you are 60 or above, then pick your income-tax slab.
03
See the deduction and saving
See the deductible interest, what stays taxable, and the tax you save.
Steps to use the 80TTA & 80TTB Calculator: Enter your interest, Set age and slab, See the deduction and saving.
The Formula
How the Interest Deduction Is Worked Out
01
Eligible interest
80TTA: savings only · 80TTB: savings + all deposits
Under 60, only savings-account interest is eligible; at 60+, all deposit interest (incl. FDs) counts.
Example: Senior: ₹10,000 + ₹50,000 = ₹60,000 eligible
02
Deduction
Deduction = min(eligible interest, limit)
Capped at ₹10,000 (80TTA) or ₹50,000 (80TTB); interest above the cap stays taxable.
Example: min(₹60,000, ₹50,000) = ₹50,000
03
Tax saved
Saving = deduction × slab% × 1.04
The deduction reduces taxable income, so you save at your marginal slab rate plus the 4% cess.
Example: ₹50,000 × 20% × 1.04 = ₹10,400
Worked Example
Walkthrough (Senior: ₹10k savings + ₹50k FD interest, 20% slab)
Currency note: the example below uses a benchmark scenario priced in Indian Rupee (INR). Values are converted to US Dollar (USD) at the latest exchange rate so you can compare against your own numbers.
Scenario
A senior citizen with ₹10,000 of savings interest and ₹50,000 of FD interest, at the 20% slab, claiming 80TTB.
1
Step 1 · Eligible interest
80TTB counts all deposit interest — savings plus FD — so ₹60,000 is eligible.
Eligible = $60,000.00
2
Step 2 · Apply the cap
The ₹60,000 is capped at the ₹50,000 80TTB limit; ₹10,000 stays taxable.
Deduction = $50,000.00
3
Step 3 · Tax saved
At 20% plus 4% cess, the deduction saves real tax.
Tax saved = $10,400.00
The takeaway
A senior with ₹60,000 of interest deducts $50,000.00 under 80TTB and saves $10,400.00 at 20% — leaving only $10,000.00 taxable. A non-senior would get just ₹10,000 (80TTA) on the savings part, with all FD interest taxed.
By section
80TTA vs 80TTB at a Glance
| Metric | Poor | Average | Good | Excellent |
|---|---|---|---|---|
80TTA (under 60) Savings interest only | ₹10,000 | |||
80TTB (60 and above) All deposit interest | ₹50,000 | |||
Max tax saved (80TTB, 30%) ₹50,000 × 30% + cess | ₹15,600 |
Comparison
Calcrux vs ClearTax vs Generic Calculators
| Feature | Calcrux (Free) | ClearTax | Generic |
|---|---|---|---|
| Picks 80TTA vs 80TTB by age | |||
| Excludes FD interest under 80TTA | |||
| Splits deductible vs taxable | |||
| Flags interest over the limit | |||
| Tax saved at your slab + cess | |||
| Free, no sign-up required |
Common Mistakes
80TTA / 80TTB Mistakes to Avoid
Claiming FD interest under 80TTA
Why it matters
For under-60s, 80TTA covers only savings interest — FD interest is fully taxable, so claiming it is wrong.
Fix
The calculator excludes FD interest under 80TTA and flags it as taxable.
Claiming both 80TTA and 80TTB
Why it matters
A senior gets 80TTB, which replaces 80TTA — you cannot claim both for the same year.
Fix
Turn on the senior toggle for 80TTB; the calculator applies just one section.
Forgetting interest above the limit is taxable
Why it matters
Only ₹10,000/₹50,000 is deductible; interest beyond the cap is taxed at your slab.
Fix
Check the taxable-interest figure so you set aside tax on the excess.
Confusing the deduction with TDS
Why it matters
Banks deduct TDS separately; the 80TTB deduction does not stop TDS, and excess TDS must be claimed as a refund.
Fix
Claim the deduction when filing and reconcile TDS against your final liability.
Expecting it on the new regime
Why it matters
The new regime allows neither 80TTA nor 80TTB, so all interest is taxable there.
Fix
Claim the interest deduction only on the old regime, and compare both before choosing.
Pro Tips
Get the Most From 80TTA / 80TTB
Seniors: spread deposits
With a ₹50,000 80TTB limit, keep FD interest within it where possible — interest above is taxed at your slab.
Under 60: savings vs FD
Only savings interest is deductible under 80TTA. Don't expect FD interest to be tax-free until 60.
Submit 15H if eligible
Seniors with no tax liability can file Form 15H to stop TDS on interest, avoiding a refund wait.
Stack with 80C and 80D
The interest deduction is separate from your investment and health deductions — claim all under the old regime.
Keep interest certificates
Collect annual interest certificates from each bank so your savings and FD interest totals are accurate.
Who Uses This
Who Uses This 80TTA / 80TTB Calculator
The 80TTA & 80TTB Calculator works across every stage of the workflow.
Senior citizens
A retiree living on FD interest checks how much of it is tax-free under the ₹50,000 80TTB limit.
Salaried savers
Someone under 60 checks the ₹10,000 80TTA deduction on their savings-account interest.
FD-heavy investors
An investor with large deposits works out how much interest stays taxable after the deduction.
Tax-return filers
A taxpayer reconciling interest and TDS uses the deduction to compute their real liability.
Old-vs-new regime deciders
Someone with significant interest income weighs the 80TTB benefit when choosing a regime.
Glossary
Key 80TTA / 80TTB Terms
Every important term you'll encounter in this calculator and the broader topic.
- Section 80TTA
- A deduction of up to ₹10,000 a year on savings-account interest, for taxpayers under 60, under the old regime.
- Section 80TTB
- A deduction of up to ₹50,000 a year on all deposit interest (savings, FD, RD, post office), for senior citizens.
- Eligible Interest
- The interest that counts toward the deduction — savings only under 80TTA, all deposit interest under 80TTB.
- Taxable Interest
- Interest left after the deduction — the part above the ₹10,000 / ₹50,000 cap, taxed at your slab.
- Senior Citizen
- A resident aged 60 or above, who claims 80TTB (₹50,000 on all deposit interest) instead of 80TTA.
- Form 15H
- A declaration a senior with no tax liability files to stop the bank deducting TDS on interest.
Help & answers
Frequently asked questions
Everything you need to know about how the 80TTA & 80TTB Calculator works.
01What is an 80TTA / 80TTB calculator?
It works out the tax-free deduction on your interest income. Under 60 you get 80TTA — up to ₹10,000 on savings-account interest. At 60 or above you get 80TTB — up to ₹50,000 on all deposit interest, including FDs.
02What is the difference between 80TTA and 80TTB?
80TTA (under 60) covers only savings-account interest, up to ₹10,000. 80TTB (60+) covers all deposit interest — savings, FD, RD and post office — up to ₹50,000. A senior claims 80TTB instead of 80TTA, not both.
03Is FD interest tax-free under 80TTA?
No. For those under 60, Section 80TTA covers only savings-account interest — FD and RD interest is fully taxable. FD interest becomes deductible (up to ₹50,000) only for senior citizens under 80TTB.
04How much interest is tax-free for senior citizens?
Up to ₹50,000 of total deposit interest a year under Section 80TTB — covering savings accounts, fixed deposits, recurring deposits and post-office schemes. Interest above ₹50,000 is taxed at the senior's slab.
05How much tax does the deduction save?
The deduction times your slab rate, plus 4% cess. A ₹50,000 80TTB deduction saves ₹10,400 at the 20% slab and ₹15,600 at 30%. A ₹10,000 80TTA deduction saves ₹2,080 at 20%.
06Does 80TTA/80TTB work in the new tax regime?
No. Both deductions are available only under the old tax regime. If you opt for the new (default) regime, all your savings and deposit interest is taxable with no 80TTA or 80TTB relief.
07Is the ₹50,000 80TTB limit on top of the basic exemption?
Yes. 80TTB reduces taxable income by up to ₹50,000 of interest, separately from the basic exemption limit and other deductions. It is one of the main reasons FD-heavy seniors pay less tax under the old regime.
08Does the deduction stop TDS on my interest?
No — they are separate. Banks deduct TDS on interest above the threshold (₹50,000 a year for seniors). 80TTB then reduces your taxable interest, and you reconcile any excess TDS as a refund when you file.
09Can I claim 80TTA on post-office savings interest?
Yes. Savings interest from a post-office savings account counts under 80TTA, alongside bank savings interest, within the ₹10,000 limit. (A separate small exemption also applies to post-office savings interest.)
10Is 80TTA/80TTB separate from 80C?
Yes. The interest deduction under 80TTA/80TTB is completely separate from the ₹1.5 lakh 80C limit and from 80D. You can claim it on top of both, under the old regime.
11What if my interest is below the limit?
Then all of it is deductible — the deduction equals your eligible interest, and none is taxable. The cap only bites when your eligible interest exceeds ₹10,000 (80TTA) or ₹50,000 (80TTB).
12Is this 80TTA / 80TTB calculator free and accurate?
Yes — it is free, needs no sign-up, and uses the ₹10,000 (80TTA) and ₹50,000 (80TTB) limits for FY 2025-26. Confirm your age and that you are on the old regime before relying on the figure.
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