Marginal Tax Rate Ontario: 2026 Brackets & Calculator

Highest combined marginal rate in Ontario (2026): 53.53% ·
Top federal rate: 33% ·
Top Ontario rate: 20.53% ·
Income threshold for top rate: over $258,482 ·
Number of Ontario tax brackets (2026): 5 ·
Basic personal amount (2025): $12,298

The table below captures the key tax figures for Ontario residents in 2025–2026.

What is my marginal tax rate in Ontario?

Your marginal tax rate is the percentage of tax you pay on each additional dollar of income you earn — not on your entire income. This distinction is where most confusion begins. Ontario uses a progressive bracket system combined with federal brackets, so as your income climbs through each range, only the dollars inside that range are taxed at the higher rate.

Marginal vs. average tax rate

• Marginal rate: The tax on your next dollar of income, not on all income (Canada Revenue Agency (federal tax authority)).
• Average rate: Total tax paid divided by total income — almost always lower than the marginal rate.
• Why it matters for raises and side income: Knowing your marginal rate tells you exactly how much of a bonus, freelance payment, or salary increase you keep after tax (TD Canada (big five Canadian bank)).

Why your marginal rate matters for raises and side income

If your employer offers a $10,000 raise and your marginal rate is 37.91%, you keep $6,209 — not $10,000. The same logic applies to freelance work, rental income, or capital gains. Knowing your number means you can evaluate whether extra work is worth the time (EY (professional services firm)).

The implication: for Ontario professionals earning between $90,000 and $150,000, the marginal rate climbs from roughly 31% to nearly 44%. That jump alone can turn the economics of a side hustle upside down.

How does the marginal tax rate work in Canada?

Canada has a progressive tax system: each bracket only applies to income within that range. Both the federal government and the Ontario government impose their own brackets, and Ontario adds a surtax on top of its provincial tax.

Federal tax brackets (2025-2026)

Here are the federal tax brackets for the 2025–2026 tax years.

Three federal rate brackets, one pattern: each dollar is taxed only in the band it occupies.

Source: Spring Financial (Canadian tax resource)

The catch: these federal brackets alone don’t tell the full story because Ontario adds its own layers on top.

Ontario tax brackets (2025-2026)

Ontario splits its provincial income tax into five brackets, with the lowest at 5.05% and the top provincial rate at 13.16%.

Source: SSL Group (Canadian tax resource)

The trade-off: Ontario’s bracket thresholds are lower than the federal ones at several points, which means you hit higher combined rates sooner than you might from looking at federal brackets alone.

How the Ontario surtax works

Ontario imposes a two-tier surtax on the provincial tax you owe, not on your income. For 2026, the surtax kicks in at $5,818 of Ontario tax (20% surtax), and an additional 36% surtax applies once Ontario tax exceeds $7,446, for a total surtax of 56% on that portion of provincial tax (KPMG (global accounting firm)).

The implication: a taxpayer whose Ontario tax before surtax is $12,000 pays roughly $4,296 in surtax on top — that’s $12,000 × (20% + 36%), effectively turning a 13.16% base provincial rate into 20.53% (13.16% × 156%). For high earners, the surtax accounts for about 7.4 percentage points of the top Ontario rate.

The implication: the surtax makes Ontario’s combined rates higher than the sum of bracket rates suggests.

How much is $100,000 income taxed in Ontario?

For someone earning $100,000 in gross employment income in Ontario for 2026, here’s the breakdown. We’ll assume standard deductions (CPP and EI) and the basic personal amount.

Take-home pay calculation for $100,000 gross

Using the combined rate structure, a $100,000 salary falls primarily into the 31.48% combined marginal bracket (Ontario 9.15% + federal 20.5%, plus surtax adjustments). Total federal and provincial tax before credits lands around $21,500–$23,000. After CPP ($4,068) and EI ($1,077) deductions, net income is roughly $71,000–$74,000 (EY (professional services firm)).

The pattern: a $100,000 earner keeps about 72–74 cents of every dollar. But the next dollar earned enters the 31.48% bracket.

Marginal rate at $100,000 income

At $100,000 taxable income, the taxpayer sits in the Ontario 9.15% bracket ($53,891–$107,785) and the federal 20.5% bracket ($58,523–$117,045). Combined, that’s 29.65%, but when the Ontario surtax applies, the effective provincial rate climbs. The combined marginal rate for 2026 at this income level is approximately 31.48% (SSL Group (Canadian tax resource)).

Why this matters: for an Ontario professional earning $100,000, a $10,000 raise means keeping roughly $6,852 — not $10,000. That 31.48% bite is the real cost of earning more.

How much is $120,000 salary after taxes in Ontario?

At $120,000 gross, the picture changes because the taxpayer crosses several bracket boundaries.

Take-home pay calculation for $120,000 gross

With $120,000 in gross income, the taxpayer enters the Ontario 11.16% bracket ($107,786–$150,000) and the federal 26.0% bracket ($117,045–$258,482). The combined marginal rate for income between $107,786 and $117,045 is about 33.89%. Above $117,045, it jumps to 37.91% (Ontario 11.16% + federal 20.5% with surtax adjusted to 12.72% effective) (Spring Financial (Canadian tax resource)).

Source: TransCanada Wealth Management (Canadian financial advisory)

The catch: the jump from 33.89% to 43.91% at $117,045 is a 10-percentage-point increase — one of the steepest combined rate jumps in the Canadian system. For a $120,000 earner, this means a significant portion of income faces nearly 44% marginal tax, dramatically reducing the take-home value of any further raises.

Marginal rate at $120,000 income

At $120,000, the marginal rate on the next dollar is 43.91% (Ontario effective 13.69% including surtax + federal 26.0%). That means a $5,000 bonus yields only $2,804.50 after tax. Total federal and provincial tax on $120,000 is roughly $30,000–$32,000, with net income around $83,000–$86,000 (EY (professional services firm)).

What is the 60% tax trap?

The “60% tax trap” is a term for an effective marginal tax rate approaching 60% that occurs when income increases cause a loss of tax credits, benefits, or both — not a formal tax bracket. In Ontario, this typically happens when income crosses thresholds for the Canada Child Benefit (CCB) or Old Age Security (OAS) clawback, or when the basic personal amount phases out.

How the 60% trap arises in Canada

Two main mechanisms create the trap:

• OAS clawback: For 2026, OAS begins to be clawed back at $86,912 (indexed annually) at a rate of 15% of income above that threshold (Service Canada (federal benefits administrator)). Combined with the marginal tax rate, the effective rate on the next dollar can reach 55–60%.
• Phasing out of credits: The federal basic personal amount has an additional $1,623 amount for incomes under $181,440, which is clawed back at 5% above that threshold (TransCanada Wealth Management (Canadian financial advisory)). Ontario’s low-income tax reduction ($300) claws back above $18,931 (EY (professional services firm)).

Strategies to mitigate the trap

For Ontario taxpayers at risk of the 60% trap, several strategies can help:

• RRSP contributions: Reduce taxable income and defer tax to lower-income years (TD Canada (big five Canadian bank)).
• Income splitting: Shift investment income to a lower-earning spouse through spousal loans or prescribed-rate loans (subject to tax rules).
• Capital gains vs. employment income: Only 50% of capital gains are taxable, lowering effective marginal rate on investment returns.

How do I calculate a marginal tax rate?

Calculating your combined marginal rate involves three steps.

Step-by-step manual calculation

1. Find your taxable income: Start with gross income, subtract deductions (RRSP, CPP, EI, basic personal amount).
2. Identify the bracket the next dollar falls into: For both federal and Ontario, find the bracket that contains your taxable income. The rate in that bracket is your marginal rate — not the rate on your entire income (Canada Revenue Agency (federal tax authority)).
3. Add the rates and include surtax: Add the federal and Ontario bracket rates. If your Ontario tax is above $5,818, add the surtax (20% at first tier, 36% additional at second tier) to get the effective provincial rate, then add to the federal rate (KPMG (global accounting firm)).

Example: For $100,000 taxable income in 2026, federal bracket is 20.5% and Ontario bracket is 9.15%. Ontario surtax applies (Ontario tax around $6,700, which exceeds $5,818 but not $7,446), so effective provincial rate is 9.15% × 120% = 10.98%. Combined: 20.5% + 10.98% = approximately 31.48%.

Using online calculators and tools

Several tools simplify this:

• EY’s tax calculator (professional services firm): Accurate for combined federal-Ontario estimates.
• TD Canada’s tax calculator (big five Canadian bank): Simple interface for quick approximations.
• TaxTips.ca (Canadian tax resource): Detailed calculators with surtax inclusion.

The catch: no calculator accounts for your specific credit situation (charitable donations, tuition, medical expenses). Those reduce average tax but rarely change marginal rate.

Timeline: Key Ontario tax dates

Three critical milestones for Ontario taxpayers.

The implication: while bracket thresholds are indexed annually, the surtax thresholds are not — so as inflation pushes incomes higher, more Ontario taxpayers will hit the surtax over time.

Clarity: What we know and what remains unclear

Confirmed facts

• Ontario has 5 income brackets for 2025-2026 (Spring Financial (Canadian tax resource)).
• The Ontario surtax adds up to 56% on the Ontario tax payable (KPMG (global accounting firm)).
• Combined marginal rates exceed 50% for high earners (Spring Financial (Canadian tax resource)).
• Federal basic personal amount for 2026: $14,829 base plus up to $1,623 additional (TransCanada Wealth Management (Canadian financial advisory)).
• Ontario low-income tax reduction: $300, clawed back above $18,931 (EY (professional services firm)).

What’s unclear

• Future bracket thresholds beyond 2026 are not indexed and subject to change (KPMG (global accounting firm)).
• Specific effective marginal rates for individuals depend on their unique credits and deductions (EY (professional services firm)).

The pattern: the combination of indexed brackets and non-indexed surtax thresholds means more taxpayers will face higher effective rates over time.

Expert perspectives

“Tax rates for the 2026 tax year have been indexed for inflation, so all federal tax bracket amounts have increased slightly from 2025.”

Spring Financial (Canadian tax resource)

“The Ontario surtax is calculated on the amount of Ontario tax before any reductions. It adds an effective 56% on the provincial tax for high-income earners.”

KPMG (global accounting firm)

“Individuals earning between $100,000 and $120,000 in Ontario should expect their marginal rate to be in the 30–44% range, depending on their exact income and credits.”

Spring Financial (Canadian tax resource)

“The combined federal and Ontario marginal tax rates can exceed 50% once the surtax is applied and benefits begin to phase out.”

EY (professional services firm)

For the Ontario professional earning between $90,000 and $150,000, the choice is clear: know your combined marginal rate before chasing raises or taking on side income, or risk losing more than half of each extra dollar to taxes and phased-out benefits. A quick calculation with an EY or TD tool before negotiating your next raise could save you thousands — or show you that the raise isn’t worth the time it demands.

For Ontario professionals, understanding your marginal rate is essential before making financial decisions like taking on a new project or negotiating a raise. Without that knowledge, you might work harder for less than you expect.

For a complete overview of how these rates stack up, see the detailed guide on Ontario income tax brackets for 2025-2026.

Frequently asked questions

Related reading

• CRA 2026 Tax Season Changes (tax resource)
• Old Age Pension Payment Dates 2026 (federal benefits guide)