Before the new AMT rules in Canada, the Alternative Minimum Tax was a secondary tax calculation that most Canadians could ignore. However, that era is over.
With the AMT rate increasing and capital gains now facing 100% inclusion in the AMT base, you now face the risk of triggering a massive, unexpected AMT bill.
Whether you are a founder planning to exit your business or exercising your stock options, this blog will walk you through the changes in AMT, how to calculate it, and strategies you can use to better your tax situation under the updated rules.
TL;DR – New AMT Rules in Canada
The AMT rule changes have completely reshaped the tax landscape.
Here’s an overview:
| Year | AMT Exemption |
| 2024 | $ 173,205.00 |
| 2025 | $ 177,882.00 |
| 2026 Indexed (Estimated) | $ 181,440.00 |
More on these later in the blog.
The Basics of the Pre-2024 Alternative Minimum Tax Rules
Before the 2024 change, the AMT tax rules remained unchanged for nearly 4 decades, focusing mainly on high-income individuals who relied heavily on preferential tax treatments.
Here’s a breakdown of how the system functioned:
- The Parallel Calculation: Every year, you calculate your tax bill twice, once under regular tax rules and once under AMT rules. You were required to pay whichever amount was higher.
- Narrow Income Base: The AMT base was narrower than it is today. For example, capital gains were taxed at only 80%, and the Lifetime Capital Gains Exemption (LCGE) could often shelter 100% of a gain from AMT.
- The Exemption: You were granted a standard $40,000 basic exemption. If your adjusted income were below this, AMT would not apply to you.
- Flat Rate: If your income crossed the exemption threshold, the AMT applied a flat federal rate of 15% to your adjusted AMT income.
- Full Credit Deductibility: Under the old rules, most non-refundable federal tax credits (like the basic personal amount) and charitable donation credits could be claimed fully against AMT.
- AMT Recovery Period: If you paid AMT, the excess amount would be tracked as a credit that you could carry forward for up to 7 years to lower your regular tax in future years.
What Changed Under the New AMT Rules in Canada?
Aside from the higher tax rate, AMT tax changes also limit the effectiveness of traditional tax planning strategies.
Below is a breakdown to help you navigate these complex changes:
| AMT Element | AMT calculation pre-2024 | AMT calculation 2024 & onward | Description |
| AMT Rate | 15% | 20.5% | The rise from 15% to 20.5% means you and your trusts (who get zero exemption) will pay more |
| Basic Exemption | $40,000 | $181,440 | The higher threshold protects 99% of Canadians from AMT, targeting only the top earners. |
| Capital Gains Inclusion in AMT Base | 80% | 100% | This change significantly broadens your income base if you’re an investor or an owner selling your business. |
| Stock Options Benefit Inclusion | 80% | 100% | The changes make it harder for you to benefit from the stock option deduction in the AMT calculation. |
| LCGE Inclusion | 80% | 100% | While 100% of the amount is initially included in the AMT base, a 70% deduction is allowed, reducing your final amount. |
| Flow-Through Share Deductions | Partial restriction | 50% | The rules before 2024 might have allowed for a larger deduction, depending on the tax act for those years. |
| Tax Credits | 100% | 50% and 80% | Under the new AMT rules, most non-refundable federal tax credits are limited to 50% in the AMT calculation, while charitable donation credits are generally limited to 80%. |
If you are facing any Alternative Minimum Tax (AMT) complexities, you should work with a tax professional.
At JS CPA Strategic Solutions, we integrate deep tax expertise with fractional CFO services to ensure your financial decisions are optimized for both today’s tax bill and tomorrow’s growth.
We build a structured 7-year AMT recovery roadmap to ensure you generate enough regular tax in future years so you can utilize your AMT credits before they expire.
Book a no-obligation call to discuss how the new AMT changes affect your tax planning strategies.
How the New AMT Rules Are Calculated
To understand whether you are at risk of a surprise tax bill, you need to look at how the government reshaped the math.
Follow the 5-step process below to calculate your AMT:
Step 1: Calculate Adjusted AMT
Start with your regular taxable income and add back specific tax preferential items.
You should add back certain deductions and exemptions, including:
- 100% of your capital gains and Employee Stock Option (ESO)benefits.
- 30% of the gain under your Lifetime Capital Gains Exemption (LCGE).
- 50% of your non-refundable credit.
Step 2: Subtract the Basic Exemption
After calculating your adjusted AMT income, subtract $181,440, which is the threshold below which the AMT rate doesn’t apply.
This ensures the AMT rules target only high-income earners and large capital gains.
Step 3: Apply the New AMT Rate
Next up, multiply the remaining amount by the flat AMT rate of 20.5% to get your gross AMT.
Step 4: Apply Allowable Credits
Subtract any allowable credit you might have that can be used to lower your AMT. This might include the foreign tax credits, past AMT credits, or 80% of charitable donation credits.
However, most non-refundable credits, such as the basic personal amount, age amount, disability tax credit, CPP/EI-related amounts, and the Canada employment amount, are limited to 50%.
Step 5: Compare With Your Regular Tax
You’ll need to complete a separate calculator on your Form T691 along with your T1 personal return.
Want to make sure your AMT calculations are accurate? Try our Alternative Minimum Tax Canada calculator.
Examples of the New AMT Rules’ Impact
The scenarios below show how the new rules in AMT affect the tax bill of high-income earners:
Example 1: The Business Founder Selling Shares
Imagine a founder selling their Qualified Small Business Corporation (QSBC) shares and realizing a $2,000,000 capital gain. They plan to use their Lifetime Capital Gains Exemption (LCGE) to shelter the gain.
- Under Regular Rules: The LCGE wipes out the tax on the first $1.25M, leaving $750,000 to be taxed at the standard inclusion rate.
- Under New AMT Rules: You must add back 30% of the gain sheltered by the LCGE into the AMT base. Additionally, the entire $2M gain is initially included at 100%. Even with the $181,440 exemption, this founder faces a massive AMT payment in the year of sale.
- The Result: A significant six-figure AMT bill that would not have existed under the old 0% LCGE inclusion rules.
Example 2: Tech Executive With Stock Options
An executive exercises and sells employee stock options, resulting in a $600,000 benefit.
- Under Regular Rules: They may be eligible for a stock option deduction (effectively taxing them at the capital gains rate).
- Under New AMT Rules: The AMT guidelines now require a 100% inclusion of the stock option benefit. By removing the preferential deduction for AMT purposes, the executive’s AMT income spikes.
- The Result: The AMT calculation will exceed regular tax, requiring the executive to pay the 20.5% rate upfront and wait to recover the AMT tax credit over the next seven years.
Example 3: High-value Philanthropist
A high-net-worth individual earns $500,000 in income and decides to donate $200,000 in publicly traded securities.
- Under Regular Tax Rules: The donor receives a donation credit that they can use to lower their regular taxes and 100% capital gains exemption
- Under the New AMT Rule: The donor must include 30% of the capital gains on the donated securities in their AMT base. Furthermore, they can only claim 80% of the donation credit against the AMT.
- The Result: Despite the generous gift, the donor may trigger an AMT liability due to the exemption of credits and inclusion of capital gains in their tax calculation
What Canada’s New AMT Rules Mean for Tax Planning
The Alternative Minimum Tax in Canada has shifted tax planning from a simple annual exercise to a multi-year strategic requirement.
Here are the changes you should expect:
1. AMT Planning is Now Mandatory
Large transactions, such as a business sale or a major property liquidation, can significantly affect your AMT.
Therefore, your tax planning strategy must include:
- Transaction Planning: Calculating the exact AMT impact before signing a Letter of Intent (LOI).
- Credit Management: Understanding how a one-time AMT event affects your required tax installments.
2. Strategic Income Timing
Since you have 7 years to recover past AMT credits, you should ensure your regular tax exceeds your AMT in future years.
Effective strategies include:
- Accelerating Income: Pulling forward your RRIF withdrawals or taking higher bonuses in the years you want to recover AMT.
- Deferring Deductions: Postponing deductions and tax preference items to years where you don’t have any AMT credits left.
3. Assess Charitable Giving
The new AMT tax rules now limit the deductibility of donations to 80% and includes 30% of capital gains on donated securities.
If you are planning on gifting securities, consider:
- Corporate Giving: Donating through a private corporation, which protects your securities from AMT.
- Multi-year Pledges: Breaking a large donation into smaller annual amounts spread over multiple years to stay below the AMT threshold.
JS CPA Strategic Solutions provides advanced tax and compliance services to project your AMT exposure before you commit to a major share sale, ensuring you understand the true after-tax proceeds.
Frequently Asked Questions (FAQs)
Check out the answers to the most asked questions about the new AMT rules in Canada:
Can AMT Be Carried Forward and Recovered in Canada?
Definitely! If you pay AMT, the excess over your regular tax is recorded as an AMT credit. Under the AMT carryover rules, these AMT credits will be available to you for the next 7 years.
Explore our blog on how to recover Alternative Minimum Tax in Canada to learn more about how you can recover your AMT credits.
When Do the New AMT Rules Take Effect in Canada?
The new AMT rules for 2024 officially took effect for all taxation years after January 1, 2024. This means the first returns under the new guidelines were filed in the spring of the following year.
Will More Taxpayers Pay AMT Under the New Rules?
No. While the exemption threshold removes most Canadians from the AMT regime, the new rules are much more aggressive towards top-income earners.
If you are a business owner claiming the LCGE, an investor with significant capital gains, or a major philanthropist, you are more likely to trigger AMT under the new 20.5% rate and 100% capital gains inclusion.
What Is the AMT Rate Under the New Rules in Canada?
The federal AMT rate increased from 15% to 20.5%. This rate is applied to your adjusted taxable income after you subtract the basic exemption of $181,440.
Conclusion
Navigating these new AMT rules isn’t as straightforward as it used to be. While the higher exemption might seem like a win, the reality is that the math behind your taxes has become more aggressive.
You need to engage with tax professionals to help you with tax planning so you don’t miss the opportunities to use your AMT credits.
JS CPA Strategic Solutions strategically structures your LCGE and Qualified Small Business Corporation (QSBC) claims to minimize the impact of the new 30% AMT add-back, protecting as much of your gain as possible.
Book a consultation call to get started and ensure your tax strategy is optimized for AMT rules 2024 and beyond.
