Quick answer
- Proposed as permanent, not temporary — a break from every earlier Canadian immediate-expensing measure.
- Applies to eligible property acquired on or after September 15, 2026.
- Covers roughly 65% of capital assets — up from ~15% under the 2025 Super-Deduction.
- Available to corporations, self-employed individuals, and partnerships.
- Buildings in CCA Class 1 and 3 are excluded.
Why this tax change matters to Canadian small-business owners
On September 15, 2026, at the first Canada Investment Summit in Toronto, Prime Minister Mark Carney announced the Productivity Mega Deduction — a proposed change to how Canadian businesses claim tax deductions on capital purchases.
If you run a business, this matters for a simple reason: it changes what you can deduct, and when. That, in turn, changes your cash flow. And if you carry a mortgage, cash flow is one of the main things your lender looks at.
The measure is designed for corporations, but self-employed Canadians and partnerships qualify too. That includes the sole proprietor plumber, the incorporated dentist, and the couple who own a small retail shop. Working with an independent mortgage broker who understands both sides of that equation — the tax picture and the mortgage picture — can help you plan the timing so the deduction helps you rather than works against you.
Quick start: pick your path
The Mega Deduction is broad, but it does not apply to everyone the same way. Pick the description closest to you.
Read “What qualifies” next, then the self-employed mortgage section. Your reported line-15000 income is what most lenders use.
Read “What actually changed” and the five-step roadmap. The rules are simpler for corporations but timing still matters.
Read the exclusion section carefully. The building itself typically does not qualify — most people get this wrong.
Read the self-employed section and the closing — coordinating a first mortgage with new self-employment is its own case.
What actually changed on September 15, 2026
Capital Cost Allowance, or CCA, is the federal system that spreads the deduction for a capital purchase over its useful life. A computer might depreciate at 55% per year on a declining balance. A truck might be 30%. The rates vary by asset class and are set in the Income Tax Regulations.
Immediate expensing changes that math. When a purchase qualifies, you deduct the full cost in the tax year the asset becomes available for use — not spread across a decade.
Canada already had a version of this. Budget 2025 introduced the Productivity Super-Deduction, which covered roughly 15% of capital assets, applied only to Canadian-controlled private corporations, was capped at $1.5 million per taxpayer per year, and was temporary.
The Mega Deduction, as proposed, is bigger on every axis. It covers about 65% of capital assets. There is no dollar cap. It applies to corporations, individuals, and partnerships. And it is permanent — not a phase-out measure. Understanding the way capital cost allowance works helps make sense of why the shift is meaningful.
What qualifies, and what’s specifically excluded
The list of qualifying assets is deliberately broad. It includes machinery, equipment, computer hardware, software, fibre-optic cable, mining property, oil and gas pipelines (with exceptions), patents, R&D property, aircraft, and many rail track and infrastructure items. For a plumber, that can mean the new work truck (subject to vehicle rules). For a small manufacturer, the new CNC machine. For a graphic designer, the workstation and software.
The exclusions matter more than the inclusions for many consumers, because they cover the assets people assume qualify:
- Buildings in Class 1 (most buildings acquired after 1987) and Class 3 (older buildings) are out. That covers most rental buildings and most commercial structures.
- Class 14 and 14.1 assets — franchises, licences, goodwill — are out.
- Class 51 regulated natural gas distribution pipelines are out.
- Passenger vehicles and most automobiles do not qualify if they are used, or if they were assembled outside Canada.
- Property transferred on a tax-deferred rollover is generally out.
Assets that do not qualify may still receive an enhanced first-year deduction under the pre-existing Accelerated Investment Incentive, so no asset is treated worse than before.
A five-step roadmap if you’re planning a capital purchase
If you’re weighing a major purchase, walk through these five steps before you sign anything.
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1
Confirm the asset is on the qualifying list. Not everything does. The exclusions above are strict, and the difference between a Class 10 truck and a Class 10.1 passenger vehicle can flip your answer.
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2
Confirm your acquisition date. The deduction applies to property acquired on or after September 15, 2026. If you signed a purchase order before that date but took delivery after, talk to an accountant — the technical rules around “acquisition” and “available for use” are not the same thing.
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3
Confirm the “available for use” year. You claim the deduction in the tax year the asset is available for use, not the year you ordered it. For equipment that ships one year and gets installed the next, that timing can shift a lot.
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4
Decide whether the full deduction actually helps you. For self-employed individuals and partnerships with individual members, the deduction cannot be used to create or increase a loss. And a large deduction that zeroes out your income can hurt if you’re renewing or refinancing a mortgage in the next twelve months.
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5
Run the financing math. Cash, business line of credit, equipment financing, mortgage refinance or HELOC options — each has a different total cost. A broker and an accountant working together often catch trade-offs a single advisor misses.
What it means for self-employed mortgage borrowers
Canadian lenders generally underwrite self-employed borrowers on two or three years of T1 income and Notices of Assessment. If you claim a $60,000 immediate deduction against your business income this year, your reported income on line 15000 may drop by roughly that amount. A drop of that size can move you from comfortably qualifying at a lower rate to needing an alternative-lending path.
The federal mortgage stress test still applies. Under Office of the Superintendent of Financial Institutions guidelines, you must qualify at the greater of contract rate plus 2% or 5.25%. Your reported income is the input to that calculation, so a shrunken line 15000 shrinks how much house you can qualify for.
For borrowers whose tax return understates real cash flow, alternative lending options — including stated-income and bank-statement programs — can bridge the gap, though often at a higher rate. Razi Khan, Founder and Mortgage Broker at Pegasus, has spent more than two decades helping self-employed clients coordinate tax and mortgage decisions so the two work together rather than against each other. The takeaway: talk to your broker before you file, not after.
Six common mistakes to avoid
The Mega Deduction is simple in principle and tricky at the edges. Six mistakes come up most often in early planning conversations.
- Assuming your home or rental building qualifies. Class 1 and 3 buildings are excluded. If your primary asset is real estate, the Mega Deduction typically does not apply to the building itself.
- Buying just before September 15, 2026. The measure applies to property acquired on or after that date. A purchase signed a week earlier may not qualify — check the acquisition date rules with an accountant.
- Forgetting the “available for use” rule. You claim the deduction in the tax year the asset is available for use, not ordered. Long lead times can push the deduction into a later year.
- Claiming on a used or foreign-assembled passenger vehicle. Most do not qualify. Check the CCA class before you buy.
- Zeroing out income before a mortgage renewal. A large deduction that erases your taxable income can hurt your qualifying picture at renewal or refinance.
- Planning around draft legislation as if it’s already law. The Mega Deduction is proposed. Until Parliament passes the bill, plan with a contingency for the rules changing.
Frequently asked questions
Is the Productivity Mega Deduction permanent or just temporary?
When does the Productivity Mega Deduction take effect in Canada?
Can I claim the Mega Deduction if I’m self-employed?
Does the Mega Deduction apply to my rental property or my home?
What’s the difference between the Mega Deduction and the 2025 Super-Deduction?
Can I use immediate expensing on a used vehicle I bought for my business?
Should I refinance my mortgage to buy equipment before year-end?
Where can I read the official government details on the Mega Deduction?
Not sure how a big deduction will affect your mortgage picture?
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About the author
Razi Khan
Founder, CEO & Licensed Mortgage Broker · Pegasus Mortgage Lending · Toronto, Ontario · FSRA Lic # 11479
Razi Khan is the Founder, CEO, and a licensed Mortgage Broker at Pegasus Mortgage Lending Center Inc., based in Toronto. With over 20 years of experience in the Canadian mortgage industry, Razi has personally guided more than 3,000 clients through some of the most complex and high-stakes financial decisions of their lives — from first-time purchases in the GTA to refinancing strategies, alternative lending solutions, and cross-border mortgages for Canadians buying in the United States.
Razi founded Pegasus in October 2008, launching the brokerage at the height of a global financial crisis. He works across the full spectrum of borrower profiles, with particular expertise in complex files including self-employed borrowers, credit-challenged clients, and investors building multi-property portfolios.
Learn more about Razi Khan →Sources & references
- Department of Finance Canada — News release, September 15, 2026 — https://www.canada.ca/en/department-finance/news/2026/09/government-of-canada-introduces-new-productivity-mega-deduction-to-boost-canadas-advantage-as-the-most-competitive-g7-country-for-new-business-inve.html
- PwC Canada — Tax Insights, September 2026 — https://www.pwc.com/ca/en/services/tax/publications/tax-insights/federal-tax-measures-boost-investments-canada-2026.html
- Osler, Hoskin & Harcourt LLP — Update, September 2026 — https://www.osler.com/en/insights/updates/canadian-prime-minister-announces-productivity-mega-deduction/
- MNP — Insight, September 2026 — https://www.mnp.ca/en/insights/directory/proposed-productivity-mega-deduction-expensing-business-investments
- Gowling WLG — Article, September 2026 — https://gowlingwlg.com/en/insights-resources/articles/2026/productivity-mega-deduction
- TD Economics — Commentary, September 16, 2026 — https://economics.td.com/ca-productivity-mega-deduction
- Blakes — Insights, September 18, 2026 — https://www.blakes.com/insights/canada-announces-productivity-mega-deduction/
- OSFI — Guideline B-20 (Residential Mortgage Underwriting) — https://www.osfi-bsif.gc.ca/en/guidance/guidance-library/residential-mortgage-underwriting-practices-procedures-guideline-b-20

