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Investment Knowledge / Fixed Income / Corporate Fixed Deposits
Fixed income guide · tax reviewed 7 September 2026

Corporate Fixed Deposits

A company accepts a fixed-term deposit and promises interest plus repayment at maturity.

Return: Fixed / contractedRisk: Issuer credit riskLiquidity: Varies by issuer and scheme
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What it is

A corporate fixed deposit is money placed directly with an eligible company or NBFC for a fixed period. The issuer promises a stated interest rate and maturity repayment. The higher rate often reflects higher credit risk than a bank deposit or sovereign security.

IssuerEligible company / NBFC
ReturnFixed deposit rate
Typical usePotentially higher rate than bank FD
Key checkCredit quality + repayment terms

What can go wrong

  • Corporate FDs are not covered by DICGC bank-deposit insurance.
  • The company—not a bank deposit-insurance system—must be able to pay interest and principal on time.
  • Liquidity and premature withdrawal rules can be restrictive; read the scheme document before investing.

Tax in India

  • Interest is generally taxed as normal income at the investor’s applicable slab rate.
  • TDS may apply when statutory conditions are met; final liability is still based on the investor’s total tax position.
  • Do not treat a higher headline coupon as higher post-tax return until credit risk and tax are included.

What the example below measures

The example below focuses on the tax increase caused by this instrument’s return for people starting with ₹6 lakh, ₹12 lakh or ₹50 lakh of normal taxable income. It does not treat TDS as final tax.

Corporate FD tax: what happens to a ₹6L, ₹12L or ₹50L income person?

This is an instrument-specific illustration, not the same generic tax chart repeated on every page.

FY 2026-27 · Default new regime
Example used on this page: Assume ₹5,00,000 in a corporate FD at an illustrative 8.5% for one year → ₹42,500 interest. Existing income below means normal taxable income before this investment return is added. Assumes a resident individual, no special-rate income, and includes 4% Health & Education Cess.
Existing taxable income before Corporate FD return

₹6,00,000

After adding return: ₹6,42,500
Increase in annual tax: ≈ ₹0

Income becomes ₹6,42,500. Because normal-rate total income is still within ₹12 lakh, the available resident-individual rebate can keep final tax at nil in this simplified example.

Existing taxable income before Corporate FD return

₹12,00,000

After adding return: ₹12,42,500
Increase in annual tax: ≈ ₹44,200

Income becomes ₹12,42,500. ₹12 lakh is exactly the rebate cut-off. Marginal relief limits the sudden tax jump; 4% cess is then added. This is a threshold effect, not a normal 104% tax rate.

Existing taxable income before Corporate FD return

₹50,00,000

After adding return: ₹50,42,500
Increase in annual tax: ≈ ₹44,200

Income becomes ₹50,42,500. ₹50 lakh is exactly the surcharge threshold. Marginal relief reduces the surcharge jump just above ₹50 lakh; 4% cess is then added.

Why the ₹12L and ₹50L examples can look surprising: both people start exactly on a tax boundary before the Corporate FD return is added. At ₹12 lakh, the 87A rebate boundary is crossed; at ₹50 lakh, the surcharge boundary is crossed. Marginal relief softens each jump, but 4% cess still applies. A person whose total income is comfortably inside a slab will normally see a much more familiar marginal tax effect. These cards are designed around your exact “₹6L / ₹12L / ₹50L income person then invests” question.
Corporate-FD interest is generally taxed as normal income. The TDS rule/threshold can depend on the legal character of the payer and payment, so TDS should not be confused with the final tax liability.

Tax & bond words — explained simply

No jargon without meaning. These are the terms used on this Corporate FD page.

InterestThe amount the company pays on your deposit.
Credit riskThe risk that the company may delay or fail to repay interest or principal.
Credit ratingAn agency’s opinion on the issuer’s ability to repay. A rating is useful, but it is not a guarantee.
TDSTax Deducted at Source. The payer may deduct tax when the applicable law/threshold requires it; you claim that deduction as tax credit.
Slab rateThe tax percentage that applies to the next rupee of normal taxable income.
CessA 4% Health & Education Cess charged on income tax plus surcharge, if any.

Official references

Use the current issuer document and current law before investing. These links are starting points for verification.

Income Tax Department — current tax law↗SEBI Investor — Understanding Bonds↗

Educational illustration, not tax or investment advice. Tax depends on residential status, tax regime, age, deductions, special-rate income, acquisition price, holding period, listing status and changes in law. “Fixed income” does not mean every instrument is guaranteed or liquid.

Compare return after tax, not only the headline rate.

Underpitch can help you compare tenure, credit quality, liquidity and post-tax yield before you invest.

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