I'm in the 30% slab: are 10% to 12% bonds worth it?

Q: I'm in the 30% slab: are 10% to 12% bonds worth it?

Bond interest is taxed at your slab, so in the 30% slab a 10% bond yields about 7% after tax and a 12% bond about 8.4%, before cess and surcharge. Tax shrinks the extra reward over safer options by the same 30%, but it does nothing to the credit risk, so the useful comparison is post-tax yield against an alternative with the same credit quality.

Interest on bonds is added to your income and taxed at your slab rate, the same as FD interest. In the 30% slab you keep 70% of every rupee of interest, before cess and surcharge. Whether a 10% to 12% bond is worth it depends on what the post-tax yield buys you compared with a safer option, and on whether the higher yield is paying you enough for the extra credit risk. This page does not judge any specific bond.

What does tax do to a 10% to 12% bond?

Pre-tax yield	After tax at 30%
8%	5.6%
9%	6.3%
10%	7.0%
11%	7.7%
12%	8.4%

Cess and any surcharge reduce these figures a little further. Take a 12% bond against a 7.5% FD. Before tax the gap is 4.5 percentage points; after 30% tax on both, it is 3.15 points. The gap shrinks, but the risk that earned it does not.

What is the extra yield paying for?

A bond that pays 4 or 5 points more than a bank FD is paying for something: a lower credit rating, unsecured or subordinated ranking, a structure that returns principal in instalments, or a bond that is hard to sell before maturity. Tax treats a 12% coupon and a 7.5% coupon the same way, so the after-tax reward for taking that risk falls by 30% while the risk stays whole. See Is a 12% to 15% bond too good to be true? and Secured vs unsecured vs subordinated.

Does the headline yield overstate what I keep?

It can. Many platform bonds are short and repay principal in instalments, and their displayed yield is a YTM worked out on those instalments. On the most viewed platform question on TradingQnA, which asks exactly this about Wint Wealth bonds in the 30% slab (26,916 views), a reply notes that such bonds can show a high yield while absolute returns are modest (TradingQnA). Compare rupees received, not just the percentage.

Is any part of the return taxed less?

Capital gains on listed bonds. Since 23rd Jul 2024, a listed bond held for more than 12 months pays 12.5% long term capital gains tax without indexation (Business Standard). If you buy a listed bond below face value and hold it past 12 months, the rise to face value is taxed as a gain rather than at your slab.
Unlisted bonds and market linked debentures. Gains are taxed at slab regardless of holding period (TaxTMI, Outlook Money).
Tax-free bonds. Only the interest is exempt; a gain or loss on sale is still taxable (TradingQnA).

What about TDS?

Issuers deduct 10% TDS on interest from listed debentures since 1st Apr 2023 (EY). In the 30% slab that is not extra tax: the deducted amount counts as tax already paid, and you pay the balance when you file. From 1st Apr 2026 the provision sits in section 393(1) of the Income-tax Act 2025 at the same rate (TDSMAN).

What should I compare against?

Put the post-tax yield next to an option with the same credit quality and the same chance of getting your money out early. If a 12% bond's after-tax 8.4% is being compared with a 7.5% FD's after-tax 5.25%, the 3.15 point gap is the full payment you receive for the extra risk.