Marginal Relief Explained: The Narrow Band Where It Actually Matters
By the QuickYield Team · Published September 7, 2026 · 6 min read
Where does marginal relief actually help? Only in a narrow band — roughly ₹12,00,000 to ₹12,71,000 in taxable income. At exactly ₹12,50,000, relief cuts your tax from ₹67,500 (the raw slab calculation) to just ₹52,000 including cess. By ₹13,00,000, relief has fully phased out and provides zero benefit — you’re back to paying the full slab-calculated tax.
Why marginal relief exists at all
Under the new tax regime, taxable income up to ₹12,00,000 is entirely rebated to zero. Without a safeguard, someone earning ₹12,10,000 would suddenly owe tax calculated on the full slab structure — which could easily exceed the ₹10,000 they earned over the threshold, making a small raise cost them more than it’s worth. Marginal relief fixes exactly this: it caps your tax at (your income − ₹12,00,000), so crossing the threshold by any amount never costs you more than that amount.
The relief table
| Taxable income | Slab tax (no relief) | Relief applied | Actual tax payable |
|---|---|---|---|
| ₹12,10,000 | ₹61,500 | ₹51,500 | ₹10,400 |
| ₹12,50,000 | ₹67,500 | ₹17,500 | ₹52,000 |
| ₹12,70,000 | ₹70,500 | ₹500 | ₹72,800 |
| ₹13,00,000 | ₹75,000 | ₹0 | ₹78,000 |
Notice how quickly the relief shrinks — from saving you ₹51,500 at ₹12.1L to saving nothing at all by ₹13L. This is the part almost nobody explains clearly: marginal relief isn’t a general “cushion” around ₹12 lakh, it’s a rapidly-tapering safeguard that matters a lot right at the threshold and stops mattering entirely by roughly ₹12.71 lakh, after which you’re simply paying tax as per the normal slab structure like anyone else.
Run your own taxable income through our Marginal Relief Calculator to see your exact relief amount, and check your full tax picture with our Income Tax Calculator.
Frequently asked questions
›At what income does marginal relief stop applying?
Marginal relief phases out once your slab-calculated tax exceeds your income above ₹12 lakh — for the current new-regime slabs, that happens at roughly ₹12.71 lakh taxable income, above which you pay the full slab tax with no relief benefit.
›Does marginal relief apply under the old tax regime?
No — this specific marginal relief mechanism is tied to the new regime’s ₹12 lakh rebate threshold; the old regime has its own separate ₹5 lakh rebate threshold with its own relief treatment.
›Is marginal relief the same as the ₹12 lakh rebate itself?
No — the rebate makes income up to ₹12 lakh entirely tax-free; marginal relief is a separate, additional safeguard that caps your tax just above that threshold so a small raise never costs you more in tax than the raise itself.
›How marginal relief is calculated, exactly?
Tax payable is capped at the lower of your slab-calculated tax or (your taxable income minus ₹12,00,000) — whichever is smaller becomes your actual pre-cess tax liability.
Try it yourself
Open the Marginal Relief Calculator →
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This article is for general information only and isn’t financial, tax, or legal advice. See our disclaimer.