Free FD and RD Calculator: Maturity After Tax
Calculate fixed and recurring deposit maturity free. Why the advertised rate is not what you keep after tax.
Fixed deposit calculators produce a maturity figure that almost nobody actually receives, because interest on deposits is taxable at your slab rate and TDS is deducted along the way. Someone in a higher tax bracket looking at an advertised rate is really earning substantially less than the headline once tax is applied — and most calculators quietly ignore this entirely.
Why a free FD RD calculator matters more in India
This changes how deposits compare to alternatives. A deposit yielding a given rate before tax may deliver noticeably less after tax for a taxpayer in a higher slab, which is the comparison that matters when weighing it against tax-advantaged options like PPF, where returns are exempt. Compounding frequency adds a second wrinkle: quarterly compounding produces a slightly higher effective yield than annual at the same nominal rate, which is why banks advertise both a rate and an annualised yield.
The best free options compared
At a glance
Of the 4 options below, 4 are fully free with no paid tier to upgrade to, and 0 offer a free tier alongside paid plans. That distinction matters more than it first appears: a fully free tool cannot restrict you later, whereas a free tier is a commercial decision that can be revised.
| Tool | Cost | Best for |
|---|---|---|
| Your bank's own calculator | Fully free | Accurate for that bank's specific compounding convention, which does vary |
| A spreadsheet | Fully free | only practical way to model the post-tax outcome, which is the number that should drive… |
| Post office scheme calculators | Fully free | For small savings schemes, which sometimes offer better rates than bank deposits and… |
| Income Tax Department resources | Fully free | For the current rules on how deposit interest is taxed, TDS thresholds and the forms… |
Each option in detail
Your bank's own calculator
✓ FREEAccurate for that bank's specific compounding convention, which does vary. Since you will open the deposit there, its calculator reflects the actual terms you will receive.
A spreadsheet
✓ FREEThe only practical way to model the post-tax outcome, which is the number that should drive your decision. Compute gross interest, apply your marginal rate, and compare the result against alternatives on the same basis.
Post office scheme calculators
✓ FREEFor small savings schemes, which sometimes offer better rates than bank deposits and have their own tax treatment. Worth comparing rather than defaulting to a bank.
Income Tax Department resources
✓ FREEFor the current rules on how deposit interest is taxed, TDS thresholds and the forms available to those below the taxable limit.
Note on free tiers: limits and features change often. Everything here was checked in July 2026, but confirm current terms on the provider's own site before committing to a workflow. Official guidance: Income Tax Department GST Portal.
How to choose the right one
Calculate the gross maturity with any calculator, then apply your own marginal tax rate to the interest component to get a figure you can actually compare against other options. If your total income is below the taxable threshold, look into the declaration forms that prevent TDS being deducted unnecessarily — reclaiming it later means waiting for a refund. Compare on a post-tax basis or the comparison is meaningless.
If you are assembling a wider free toolkit, these related guides cover adjacent problems: Free SIP Calculator: Project Mutual Fund Returns, Free Income Tax Calculator India (Old vs New), Free GST Calculator: CGST, SGST and IGST.
Verdict
Bank calculators handle the arithmetic correctly. The work worth doing is converting the result to a post-tax number, because that is what determines whether a deposit is actually competitive with the alternatives. For higher-rate taxpayers, tax-exempt options frequently win despite a lower headline rate.
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See all Finance & Tax Calculators →Frequently asked questions
Is FD interest taxable in India?
Yes, interest on fixed and recurring deposits is taxable as income at your slab rate, and banks deduct TDS above specified thresholds. This is why post-tax return matters more than the advertised rate.
What is the difference between FD and RD?
A fixed deposit invests a lump sum for a term. A recurring deposit invests a fixed amount monthly. RD suits building savings from income; FD suits deploying money you already hold.
How can I avoid TDS on FD interest?
If your total income is below the taxable limit, you can submit the applicable declaration form to your bank. This does not exempt the income from tax if you are in fact liable — it prevents deduction where no tax is due.
Does compounding frequency matter?
Yes. Quarterly compounding yields slightly more than annual at the same nominal rate. Banks often quote both a rate and an effective annualised yield; compare deposits on the yield.