Info
AY 2026-27 (FY 2025-26). Surcharge bands and the new-regime 25% cap reflect the current statute. Last reviewed 7 May 2026.
Cross ₹50 lakh of taxable income and you stop paying just slab-rate income tax. A second tax — surcharge — kicks in on top of the base tax, climbing in four jumps: 10%, 15%, 25%, 37%. The cleanest way to think about it is that the headline 30% top slab is a marketing rate; the real top marginal rate at the highest band of the old regime is closer to 42.7% once surcharge and cess are layered on.
The good news for high earners in 2026: the new regime caps surcharge at 25%, eliminating the 37% top band. The maximum effective marginal rate under the new regime is around 39.0% versus 42.7% under the old. That spread alone often determines the regime choice for incomes above ₹2 crore.
This guide is the surcharge ladder, the marginal-relief math at each cliff, and the practical decisions that fall out of both.
The four surcharge bands
| Total income (slab-rate income) | Old regime | New regime |
|---|---|---|
| ₹50 lakh – ₹1 crore | 10% | 10% |
| ₹1 crore – ₹2 crore | 15% | 15% |
| ₹2 crore – ₹5 crore | 25% | 25% |
| Above ₹5 crore | 37% | 25% (capped) |
The surcharge is computed on the base income tax payable (after slab rates, after 87A rebate). It is then itself increased by 4% health and education cess.
For long-term capital gains taxed at 12.5% and short-term equity gains taxed at 20% — and a few other special-rate categories — the surcharge is capped at 15% regardless of total income, in both regimes. This shields equity-heavy taxpayers from the highest brackets.
Effective top marginal rates
Translating the surcharge bands into all-in marginal rates, including the 4% cess:
| Income band | Old regime top marginal | New regime top marginal |
|---|---|---|
| Below ₹50L | 30% × 1.04 = 31.2% | 30% × 1.04 = 31.2% |
| ₹50L – ₹1cr | 30% × 1.10 × 1.04 = 34.32% | same = 34.32% |
| ₹1cr – ₹2cr | 30% × 1.15 × 1.04 = 35.88% | same = 35.88% |
| ₹2cr – ₹5cr | 30% × 1.25 × 1.04 = 39.00% | same = 39.00% |
| Above ₹5cr | 30% × 1.37 × 1.04 = 42.74% | 39.00% (cap) |
The two regimes diverge only at the very top — but at that level the absolute rupee gap is large. On ₹1 crore of income above the ₹5 crore line, the regime choice alone moves tax payable by roughly ₹3.74 lakh.
The cliff problem at every band — and the marginal relief fix
Surcharge is a band, not a slope. ₹49,99,999 attracts no surcharge; ₹50,00,001 attracts surcharge on the entire base tax. Without a smoothing rule, ₹1 of extra income would trigger roughly ₹1.5 lakh of additional tax.
The marginal relief proviso fixes this at every band. The rule, applied at each threshold:
The total income tax (including surcharge) on income just above the threshold cannot exceed the tax on income at the threshold plus the income that exceeded it.
At each cliff, the relief stretches until the unrelieved tax catches up — typically over a band of a few lakhs of income.
Worked example: crossing ₹50 lakh in the new regime
Take total taxable income of ₹50,10,000 — i.e. ₹10,000 over the threshold.
Without marginal relief:
- Slab-rate tax on ₹50,10,000 (new regime) ≈ ₹11,53,000
- Surcharge at 10% ≈ ₹1,15,300
- Tax + surcharge ≈ ₹12,68,300
- Compared to ₹49,99,999 paying ≈ ₹11,52,000 with no surcharge — a ₹1.16 lakh jump on ₹10,001 of extra income.
With marginal relief:
- Tax payable cannot exceed (tax at ₹50L) + (income over ₹50L) = ₹11,52,000 + ₹10,000 = ₹11,62,000.
- The relief gives back roughly ₹1,06,300 of the cliff.
- Once unrelieved tax exceeds the cap (somewhere around ₹51-52 lakh of total income), the relief stops binding and surcharge applies normally.
The same logic repeats at ₹1 crore, ₹2 crore, and ₹5 crore. At each band, marginal relief creates a smoothing window of a few lakhs above the threshold.
Why the new regime's 25% cap matters
The new regime's surcharge ceiling at 25% — versus the old regime's 37% above ₹5 crore — is one of the most under-appreciated provisions of Section 115BAC. For salaried executives, founders monetising stock at IPO, or business owners with ₹10 crore+ annual income, the difference works out to the equivalent of giving up roughly 12 percentage points of marginal rate on every rupee above ₹5 crore.
A worked sanity check on ₹10 crore of total slab-rate income:
| Component | Old regime | New regime |
|---|---|---|
| Slab-rate base tax | ~₹2,87,00,000 | ~₹2,98,00,000 |
| Surcharge | 37% × ₹2.87cr = ~₹1,06,00,000 | 25% × ₹2.98cr = ~₹74,50,000 |
| Tax + surcharge | ~₹3,93,00,000 | ~₹3,72,50,000 |
| 4% cess | ~₹15,72,000 | ~₹14,90,000 |
| Total | ~₹4,08,72,000 | ~₹3,87,40,000 |
The new regime saves roughly ₹21 lakh on this profile, even before any deduction comparison.
The trade-off: under the new regime, you give up HRA, 80C, 80D, home-loan interest, and the smaller deductions. For someone earning ₹10 crore, those deductions add up to perhaps ₹6-8 lakh of saved tax in the old regime — far less than the surcharge cap saving. At the very top, the new regime wins by structure, not by deductions.
Run your own slab + surcharge math
Practical implications
- Bonus / RSU vesting timing. A retention bonus or RSU vest that pushes total income from ₹49 lakh to ₹52 lakh in a single FY triggers the first surcharge band. If you have any flexibility in payout timing, consider whether splitting across financial years materially changes which band applies. (Note: most employers don't permit this, but founders monetising equity often do.)
- Capital gains harvesting. Equity LTCG attracts surcharge capped at 15%, so realising large equity gains doesn't push you into the higher slab-rate surcharge bands. Strategic harvesting — booking gains up to a target level each year while respecting the ₹1.25 lakh LTCG exemption — keeps total taxation predictable.
- Old-regime stayers above ₹5 crore. If you're still on the old regime because of substantial deductions, recompute. The 37% surcharge band almost certainly outweighs any reasonable deduction stack at this income level.
Verify the regime choice with the comparison
When to consult a CA
Surcharge math is mechanical, but the interactions get complex once these enter the picture:
- Foreign source income with DTAA credits
- ESOP perquisite tax stacking with capital gains in the same FY
- Income from let-out properties with carried-forward losses
- AMT (Alternative Minimum Tax) under Section 115JC for old-regime business income
For any of these — particularly when total income clears ₹2 crore — the calculator outputs are a starting point, not a final answer. A professional review pre-filing avoids surprises in scrutiny.
FAQ
The follow-up questions people usually ask after the main recommendation is already clear.
What are the income tax surcharge rates in AY 2026-27?
Surcharge bands on slab-rate income: 10% on total income from ₹50 lakh to ₹1 crore, 15% from ₹1 crore to ₹2 crore, 25% from ₹2 crore to ₹5 crore, and 37% above ₹5 crore (old regime only). Under the new regime, the surcharge is capped at 25% — there is no 37% band. On long-term and short-term capital gains, the surcharge is capped at 15% in both regimes.
What is marginal relief on surcharge?
When total income just crosses a surcharge threshold (₹50L, ₹1cr, ₹2cr, ₹5cr), the marginal relief proviso ensures the extra tax owed because of crossing the threshold cannot exceed the income that crossed it. Without it, ₹100 of extra income at the ₹50L boundary could trigger surcharge of roughly ₹1.5 lakh — economically irrational. Marginal relief smooths this so the post-tax outcome of crossing a band is never worse than not crossing it.
Does the new regime really cap surcharge at 25%?
Yes. Section 115BAC, which governs the new regime, explicitly caps the maximum surcharge rate at 25% even for incomes exceeding ₹5 crore — compared to the 37% maximum in the old regime. For high earners with limited deductions, this cap alone often justifies switching to the new regime, even when other deductions in the old regime add up to several lakhs.
Is surcharge applied before or after the 87A rebate?
After. The order of computation is: (1) compute slab-rate tax on taxable income, (2) apply the 87A rebate where eligible, (3) compute surcharge on the post-rebate tax, (4) apply marginal relief if it brings down the total, (5) add 4% health and education cess on the post-surcharge total. Since the 87A rebate caps out at ₹12L (new regime) or ₹5L (old regime), it doesn't interact with the ₹50L+ surcharge bands in practice.
Does surcharge apply to capital gains?
Yes, but with a different ladder. On long-term capital gains taxed at 12.5% and short-term equity gains taxed at 20%, the surcharge is capped at 15% — even when total income exceeds ₹2 crore or ₹5 crore. This isolates capital-gains income from the harshest surcharge brackets and is why high earners often disclose equity gains as a distinct head rather than letting it sit inside aggregate income computations.