Ottawa Will Help Pay for Your Private AI Stack

On September 15, Prime Minister Mark Carney announced the Productivity Mega-Deduction: businesses can now write off 100% of eligible new investment in the first year the asset is available for use, permanently, for costs incurred from that day forward.¹ The eligible classes read like a private AI stack's bill of materials: computer equipment, software, R&D, patents.¹ The share of capital investment that can be expensed immediately jumps from roughly 15% to over 65%.³

Here's the thing this announcement doesn't say: it isn't arriving alone. It lands on top of an SR&ED program that was just expanded by Bill C-15, and a $200 million regional AI fund that most operators have never heard of.⁴⁶ Let's walk through the three programs, then put real numbers on a $1 million build, then lay out the order of operations, because sequencing is where firms leave money on the table.

The three programs, in one pass

The Productivity Mega-Deduction is immediate expensing made permanent. Instead of depreciating a GPU server over years under capital cost allowance, the full cost comes off taxable income in year one. It applies to eligible costs incurred on or after September 15, 2026, at an estimated fiscal cost of $36 billion over five years, and the government's own framing is that it drops Canada's marginal effective tax rate on new business investment below every major economy.²³

SR&ED is the one Canadian founders think they know, and the 2026 version is meaningfully better than its reputation. Bill C-15 doubled the enhanced expenditure limit: the 35% refundable credit now applies to up to $6 million of qualifying R&D spending a year, the taxable-capital phase-out was raised to $15–75 million, eligible Canadian public corporations gained access to the refundable rate, and capital equipment used at least 90% for eligible R&D is claimable again for the first time in over a decade.⁴⁵ Refundable means a cheque, not a carry-forward; a pre-profit company gets cash. The catch is real, though: SR&ED pays for experimental development, work with genuine technological uncertainty. Fine-tuning evaluation methods, novel retrieval architectures, and serving optimizations can qualify. Installing a chatbot doesn't.

RAII, the Regional Artificial Intelligence Initiative, is the sleeper. It's a $200 million envelope delivered through the regional development agencies for projects that commercialize or adopt AI, with intake open through 2028.⁶ For businesses it isn't a grant, and it's worth being precise about that: it's an interest-free repayable contribution covering up to 50% of eligible project costs, from $250,000 to $5 million, repaid at 0% over five years starting a year after the project ends, with no security taken.⁶ Unsecured 0% money with a multi-year runway is a financing instrument most CFOs would take every day of the week.

A $1M stack, with the layers applied

Take a concrete case: an Alberta manufacturer, a Canadian-controlled private corporation, builds a $1 million private AI stack this fall. Say the bill splits into $450K of GPU and server hardware, $100K of software and licences, $150K of integration engineering, and $300K of genuine experimental development, the model-adaptation and serving work where outcomes are actually uncertain. Assume it pays the combined 23% general corporate rate and has the taxable income to absorb a deduction.

The layers apply like this, and the arithmetic is worth showing. The mega-deduction expenses the $550K of hardware and software in year one: at 23%, that's $126,500 of tax that doesn't get paid. The $300K of experimental development earns the 35% refundable SR&ED credit: a $105,000 cheque, payable even in a loss year. That's $231,500 back inside roughly twelve months, about 23 cents on every dollar, before touching provincial R&D credits. And RAII can carry up to half the project, $500,000, as unsecured 0% financing; at a 7% commercial borrowing rate, that's around $35,000 a year of interest that never gets paid.

Notice what makes the stack work: the three programs don't overlap, they interlock. The mega-deduction takes the capital, SR&ED takes the R&D labour, RAII takes the financing. Nothing is double-counted, which is exactly how a reviewer wants to see it.

The order of operations

Sequencing matters more than any single program. Talk to the regional development agency before incurring costs, not after, and keep the SR&ED evidence trail from day one rather than reconstructing it at filing time.

What this doesn't say

Honest caveats, because a primer that skips them isn't one. The mega-deduction is nine hours old as this publishes: the announcement is specific, but the legislative text isn't tabled yet, so final class definitions can shift.² A deduction is only worth its rate times your taxable income; a company with no profit banks the SR&ED refund but waits on the write-off. RAII money must be repaid, on schedule, whether or not the project delivered. And SR&ED eligibility is a technical test, not a vibe; plenty of AI integration work is valuable and still doesn't qualify. The worked example is illustrative, provincial rates and credits vary, and none of this is tax advice; the right structure for your firm is a conversation with your accountant.

Sources

1. Prime Minister's Office, "Prime Minister Carney introduces new Productivity Mega Deduction" (September 15, 2026): https://www.pm.gc.ca/en/news/news-releases/2026/09/15/prime-minister-carney-introduces-new-productivity-mega-deduction
2. Finance Canada, "Government of Canada introduces new Productivity Mega Deduction" (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
3. The Globe and Mail, investment summit coverage (September 15, 2026): https://www.theglobeandmail.com/business/article-canada-investment-summit-live-updates-september-15/
4. KPMG in Canada, "Canada's SR&ED program enters a new era" (2026): https://kpmg.com/ca/en/insights/2026/02/canadas-sr-and-ed-program-enters-a-new-era.html
5. BDO Canada, "SR&ED tax credit program significantly enhanced as Bill C-15 passes" (2026): https://www.bdo.ca/insights/sr-ed-program-enhancements-and-updates-draft-legislation-released
6. PrairiesCan, Regional Artificial Intelligence Initiative program pages (accessed September 15, 2026): https://www.canada.ca/en/prairies-economic-development/services/funding/regional-artificial-intelligence-initiative.html