Income Tax Slabs Explained Simply

“If I earn a bit more, I’ll jump into a higher tax bracket and take home less.” It’s one of the most common tax myths in India — and it’s wrong. Once you understand how slabs actually work, tax becomes far less scary. Here’s the simple version.

What a tax slab is

India uses a slab system: income is divided into bands, and each band is taxed at its own rate. Lower bands are taxed at low (or zero) rates; higher bands at higher rates. As your income rises, only the portion that falls into each higher band is taxed at that band’s rate.

The key phrase is only the portion. This is called marginal taxation, and it’s the part people get wrong.

The myth of the “bracket jump”

Here’s the myth: earn ₹1 more and cross into a higher slab, and suddenly your whole income is taxed at the higher rate, leaving you worse off.

That’s not how it works. A higher slab rate applies only to the income within that slab, not to your entire income. Crossing into a higher band means only the rupees above the threshold are taxed at the higher rate. The income below the threshold is still taxed at the lower rates.

So a raise always leaves you with more money in hand — never less. You keep more of every rupee you earn; you just keep a slightly smaller share of the rupees in the top band.

A simple way to picture it

Think of your income being poured into a set of buckets stacked by height. The first bucket fills at a 0% rate, the next at a low rate, the next higher, and so on. Extra income only ever spills into the next bucket up — it never re-taxes the buckets already filled below.

Your effective tax rate — total tax divided by total income — is therefore always lower than the rate of your top slab, because most of your income was taxed at the lower bands beneath it.

Slabs differ by regime — and change over time

India currently has two tax regimes, the old and the new, and they have different slabs. The new regime generally has more bands at lower rates but fewer deductions; the old regime has fewer bands but allows deductions. Which works out cheaper for you depends on your deductions — see Old vs New Tax Regime.

Slab thresholds and rates are also revised from time to time in the Union Budget, so the exact numbers change. Rather than memorise figures that may go stale, use an Income Tax Calculator (coming soon), which will be kept current and show your tax under both regimes for the latest financial year.

Rebates can make low incomes tax-free

On top of the slabs, the Section 87A rebate can reduce your tax to zero if your taxable income is within a specified limit — so many lower-income earners pay no tax at all, even though their income technically falls into taxable slabs. The calculator applies this automatically.

The bottom line

Tax slabs are marginal: each rate applies only to the income within its band, so earning more always means taking home more. Your effective rate is lower than your top-slab rate, the two regimes have different slabs, and the numbers change with each Budget — so let an Income Tax Calculator (coming soon) do the arithmetic for the current year. See Old vs New Tax Regime for how to pick between them, and Section 80C Explained for the deductions that can shrink your taxable income under the old regime.

Learn more from official sources

• Income Tax Department — official portal for current slab rates, rebates and regime rules.

This is general information, not tax advice. Verify current slabs and rebate limits with the Income Tax Department before filing.