Tax Bracket

What Is a Tax Bracket?

A tax bracket is an income range with an associated tax rate in a progressive tax system. Each bracket’s rate applies only to the income that falls within that range — not to your entire income. Progressive bracket systems are used in the US, UK, Canada, Australia, India, New Zealand, Ireland, and most other major economies.

The term is frequently misunderstood. Moving into a higher bracket does not mean all your income suddenly gets taxed at a higher rate. Only the dollars above the bracket threshold face the new, higher rate.

How Tax Brackets Work

Think of brackets as buckets. The first bucket fills at the lowest rate. When it overflows, the overflow goes into the next bucket at a slightly higher rate. Income never flows backward into a lower-rate bucket.

US example for a single filer in 2026 (federal income tax):

Bracket	Rate	On taxable income…
1	10%	$0 – $11,600
2	12%	$11,601 – $47,150
3	22%	$47,151 – $100,525
4	24%	$100,526 – $191,950
5	32%	$191,951 – $243,725
6	35%	$243,726 – $609,350
7	37%	Over $609,350

A single filer earning $60,000 in taxable income owes:

• 10% × $11,600 = $1,160
• 12% × $35,550 = $4,266
• 22% × $12,850 = $2,827
• Total: $8,253

Their marginal rate is 22%; their effective rate is about 13.8%.

Taxable Income vs Gross Income

Brackets apply to taxable income, not gross income. Taxable income is what remains after:

• Standard deduction or personal allowance (a flat amount subtracted before brackets apply)
• Itemized deductions (US) or approved deductions (varies by country)
• Retirement contributions (401(k) in the US, pension contributions in the UK, etc.)
• Other above-the-line deductions

This means your effective bracket position is usually lower than your gross income bracket. A US single filer earning $80,000 gross subtracts the $14,600 standard deduction and lands in the 22% bracket on $65,400 of taxable income — not at the very top of that bracket.

Bracket Structures by Country (2026)

United Kingdom

UK income tax has three main bands (after the £12,570 personal allowance):

• Basic rate: 20% (up to £50,270)
• Higher rate: 40% (£50,271 – £125,140)
• Additional rate: 45% (above £125,140)

Plus National Insurance, which adds 8% or 2% depending on the band.

India (New Regime 2026-27)

India’s new default regime has slab rates:

• Nil: up to ₹3,00,000
• 5%: ₹3,00,001 – ₹7,00,000
• 10%: ₹7,00,001 – ₹10,00,000
• 15%: ₹10,00,001 – ₹12,00,000
• 20%: ₹12,00,001 – ₹15,00,000
• 30%: above ₹15,00,000

Canada (Federal 2026)

• 15%: up to CA$57,375
• 20.5%: CA$57,376 – CA$114,750
• 26%: CA$114,751 – CA$158,519
• 29%: CA$158,520 – CA$246,752
• 33%: above CA$246,752

Provincial rates are added on top, roughly doubling the effective brackets.

Australia (Resident 2026-27)

• Nil: $0 – $18,200 (tax-free threshold)
• 19%: $18,201 – $45,000
• 32.5%: $45,001 – $135,000
• 37%: $135,001 – $190,000
• 45%: above $190,000

The Medicare Levy (2%) also applies to most incomes above the low-income threshold.

Bracket Creep

Bracket creep (also called fiscal drag) occurs when inflation pushes wages higher without changing the purchasing power of those wages, causing taxpayers to enter higher brackets despite no real increase in wealth. Most countries partially address this by adjusting brackets annually for inflation — but not all do so completely.

The UK, for instance, froze income tax thresholds from 2022 through 2028, causing a significant real-terms tax increase for millions of workers as wages rose with inflation while brackets stayed flat.

Marginal Rate ≠ Bracket Rate

Your marginal tax rate equals the bracket rate of the highest bracket you reach. But the word “bracket” specifically refers to the income ranges and their associated rates as a structure — whereas “marginal rate” refers to the specific rate applicable to your last dollar.

Key Takeaway

Tax brackets define the progressive structure of income tax. Income within each bracket is taxed at that bracket’s rate — crossing into a higher bracket never reduces your net income. Use the Tax Atlas brackets tables for up-to-date rates for each country we cover.