Calculators · Savings & Fixed Income
FD calculator with post-tax returns
This FD calculator shows your fixed deposit maturity amount, total interest and what you keep after tax and inflation. It includes published FD interest rates for 14 banks and the Post Office, senior citizen rates, and five modes, from cumulative growth to FD ladders.
What your FD actually earns
Five calculation modes on one engine — cumulative growth, monthly payout, goal sizing, laddering and loan-against-FD. Every mode shows the post-tax and inflation-adjusted figure beside the headline number, because the headline rate is rarely the one you keep.
The method
How the FD interest calculator works
Interest on a cumulative FD compounds at the bank's frequency, usually quarterly. Tax is applied to the interest at your slab rate, and the calculator then shows the post-tax and inflation-adjusted yields.
The Section 80TTB deduction (up to ₹50,000 of interest a year) applies only to senior citizens under the old tax regime. It is not available under the new regime.
Worked example: senior citizen, 30% slab
- Deposit
- ₹10,00,000
- Rate (including senior bump)
- 7.50%, compounded quarterly
- Period
- 5 years
- Maturity amount
- ₹14,49,948
- Tax, new regime
- ₹1,34,984
- Tax, old regime with 80TTB
- ₹59,984
- Post-tax maturity, new regime
- ₹13,14,964
The ₹75,000 difference comes from the 80TTB deduction, which only the old regime allows.
The essentials
FD interest, tax and TDS explained
What is an FD?
A fixed deposit (FD) locks a sum with a bank or the Post Office for a fixed tenure at a fixed interest rate. In a cumulative FD the interest compounds and is paid at maturity. In a non-cumulative FD it is paid out monthly, quarterly or yearly instead, which is why the monthly income mode shows a lower total than the cumulative mode.
Tax on FD interest and TDS
FD interest is added to your income and taxed at your slab rate. Banks deduct TDS at 10% (20% without PAN) once your interest from that bank crosses ₹50,000 in a financial year, or ₹1,00,000 for senior citizens. TDS is an advance tax, not the final tax, so your actual liability is settled when you file. Senior citizens under the old regime can claim the 80TTB deduction on up to ₹50,000 of interest a year.
Post Office FD and FD ladders
The calculator also works as a Post Office FD calculator: Post Office time deposits compound quarterly, pay interest yearly and carry no senior citizen premium. Bank-specific rates are on the SBI FD calculator. The FD ladder mode splits a sum across deposits that mature in successive years, so part of the money becomes available every year. To compare an FD with market-linked income, see the SWP calculator; to size cash for emergencies, see the emergency fund calculator.
Common questions
FD Calculator: frequently asked questions
How is FD interest calculated?
Is FD interest taxable?
When does the bank deduct TDS on FD interest?
Does Section 80TTB apply under the new tax regime?
How much of my FD is insured?
By bank
FD calculators by bank
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