Alternative Minimum Tax (AMT) 2026: Who Is Now Caught?

For years, many Canadians assumed the Alternative Minimum Tax was a technical footnote.

It was something that affected “someone else.”

In 2026, that assumption is increasingly dangerous.

If you are:

• A business owner selling shares
• An investor claiming large deductions
• A high-income professional donating securities
• An individual realizing significant capital gains

You may now be exposed to AMT — even if your regular tax appears optimized.

The governing provision is Income Tax Act (ITA) s.127.5, and the calculation is reported using CRA Form T691 – Alternative Minimum Tax.

Let us examine who is now caught — and why.

 

What Is the Alternative Minimum Tax?

Canada operates two parallel tax systems:

1. Regular income tax
2. Alternative Minimum Tax (AMT)

Under ITA s.127.5, if your calculated AMT exceeds your regular federal tax, you must pay the higher amount.

AMT exists to ensure that high-income individuals who benefit from preferential tax treatment still pay a minimum level of tax.

It does not replace regular tax.

It overlays it.

 

Why AMT Matters More in 2026

Recent changes have:

• Expanded the AMT base
• Increased the AMT rate
• Limited certain deductions and credits

This means:

More taxpayers are now caught.

AMT is no longer rare.

It is increasingly common among high-net-worth individuals.

 

Who Is Most at Risk?

AMT typically affects individuals who have large amounts of:

1. Capital Gains

Only 50% of capital gains are included under regular tax rules (ITA s.38).

Under AMT, a greater portion is effectively considered.

Large one-time gains — such as selling a business or investment portfolio — create exposure.

 

2. Lifetime Capital Gains Exemption (LCGE)

Even though the LCGE under ITA s.110.6 may eliminate regular tax, AMT may still apply.

This is particularly relevant in 2026 with the higher $1.25 million limit.

Owners exiting businesses must model AMT before closing.

 

3. Flow-Through Share Deductions

Deductions claimed under resource investment programs are treated as preference items under AMT.

High-income investors may face unexpected AMT even when regular tax is reduced significantly.

 

4. Large Charitable Donations

Especially donations of publicly traded securities.

Although ITA s.38(a.1) eliminates the capital gain for regular tax purposes, AMT calculations may still increase minimum tax exposure.

 

5. Significant Tax Credits

Certain credits are limited under AMT.

High-income individuals relying heavily on credits may see reduced effectiveness.

 

How AMT Is Calculated

The AMT calculation:

1. Starts with taxable income.
2. Adds back certain preference items.
3. Applies a separate AMT rate.
4. Subtracts limited credits.
5. Compares result to regular federal tax.

If AMT is higher:

You pay the AMT amount.

CRA Form T691 walks through this calculation.

It is technical — but essential when major transactions occur.

 

Is AMT Permanent?

Not necessarily.

AMT paid may generally be carried forward for up to seven years.

It may be recovered in future years when regular tax exceeds AMT.

However:

• Recovery depends on future income patterns.
• If future income is modest, recovery may be slow.
• AMT creates real cash flow strain in the year of payment.

For retirees or business sellers, timing matters.

 

Example: Business Sale

You sell shares and realize a $2 million capital gain.

You claim the LCGE on $1.25 million.

Regular tax is significantly reduced.

However, under AMT rules:

• A larger portion of the gain may be included.
• The exemption may not eliminate minimum tax.

Result:

AMT may be payable in the year of sale.

This is why modeling must precede closing.

 

Common Misunderstandings

“If I owe no regular tax, I owe no tax.”
Incorrect. AMT may apply.

“AMT is only for corporations.”
Incorrect. It applies to individuals.

“AMT only affects ultra-wealthy taxpayers.”
Increasingly false.

“If I pay AMT once, I lose it.”
No. It may be recoverable — but not guaranteed immediately.

 

Planning Strategies for 2026

If you are anticipating a large capital event, consider:

• Spreading gains across multiple years
• Coordinating charitable donations strategically
• Reviewing flow-through deductions
• Modeling the interaction between LCGE and AMT
• Timing transactions around retirement income

For families with family-owned enterprises, liquidity events must be evaluated under both tax systems.

Ignoring AMT is no longer prudent.

 

Why This Matters for Generational Wealth

AMT does not eliminate wealth.

But it can:

• Accelerate tax payments
• Reduce available capital at critical transition points
• Disrupt estate or succession planning

For disciplined wealth builders, forecasting AMT exposure is part of responsible stewardship.

Tax planning must operate in both systems — not just one.

 

Final Thoughts

The Alternative Minimum Tax under ITA s.127.5 is no longer a theoretical risk.

In 2026, it is a practical planning reality.

If you are:

• Selling a business
• Claiming the LCGE
• Investing in flow-through shares
• Donating appreciated securities
• Realizing significant capital gains

You should calculate AMT before filing — not after.

CRA Form T691 provides the framework.

Strategic modeling provides the protection.

At Shajani CPA, we advise families and entrepreneurs with precision and foresight.

Tax is not merely compliance.

It is strategy.

Tell us your ambitions, and we will guide you there.

This information is for discussion purposes only and should not be considered professional advice. There is no guarantee or warrant of information on this site and it should be noted that rules and laws change regularly. You should consult a professional before considering implementing or taking any action based on information on this site. Call our team for a consultation before taking any action. ©2026 Shajani CPA.

Shajani CPA is a CPA Calgary, Edmonton and Red Deer firm and provides Accountant, Bookkeeping, Tax Advice and Tax Planning service.