Regional Tariff Response Initiative: Southern Ontario Eligibility Guide

If your Southern Ontario business has been squeezed by the U.S. and China tariff regimes — squeezed hard enough that input costs are up, margins are down, or hiring is frozen — FedDev Ontario has a dedicated relief program built specifically for you: the Regional Tariff Response Initiative (RTRI). RTRI offers non-repayable contributions from $125,000 up to $1,000,000 (covering up to 50% of eligible project costs) or repayable contributions from $125,000 up to $10,000,000 (covering up to 75% of eligible project costs). The catch is timing. The current intake pauses on May 1, 2026 at 4:00 PM EDT, and the program is explicitly designed to fund only viable, well-documented tariff-impacted operators. This guide walks through every eligibility gate, priority sector, fundable activity, and — in detail — exactly how much funding you can actually receive.

What RTRI actually is

The Regional Tariff Response Initiative is delivered by the Federal Economic Development Agency for Southern Ontario (FedDev Ontario). It provides two distinct contribution streams — non-repayable and repayable — to for-profit businesses in Southern Ontario that can demonstrate material impact from the U.S. and China tariff regimes that began in March 2025. FedDev Ontario determines which stream (or combination) fits a given file based on project scale and applicant profile. The program's stated purpose is threefold: enhance productivity, reduce costs, and build resilience through domestic supply-chain strengthening and market diversification.

RTRI is not a generic economic development grant. It is a targeted response to a specific policy shock, and its eligibility gates reflect that. A healthy business that hasn't felt tariff pressure won't qualify no matter how credible its project plan. Conversely, a business that has felt the pressure but was already non-viable before March 21, 2025 won't qualify either — the program is engineered for businesses that were working before the shock and are now in trouble because of it.

Program snapshot

Contribution sizing is set during review against your project plan, tariff impact, and the available envelope — but the floor ($125,000) and ceilings ($1M non-repayable, $10M repayable) are firm program limits, not guidance. A business may receive a non-repayable contribution from RTRI only once during the initiative's lifetime; the repayable stream has no such once-per-lifetime restriction.

How much funding you'll actually receive

RTRI is scoped for meaningful, project-scale investment — not small-ticket relief. The minimum contribution on either stream is $125,000, which means your total project budget needs to be at least $167,000 on the repayable stream (to hit the 75% ceiling on a $125K ask) or $250,000 on the non-repayable stream (to hit the 50% ceiling on a $125K ask). If your tariff-response project is smaller than that, RTRI is not the right tool; look to advisory-only FedDev Ontario supports or provincial programs instead.

Stacking with other government assistance

Total government assistance on a project — federal, provincial, and municipal combined — cannot exceed 90% of total eligible project costs. If you're layering RTRI with an Ontario provincial program or a municipal economic-development contribution, FedDev Ontario will size its own contribution downward at review to stay under the 90% ceiling. Indigenous-led projects are the one exception: they may receive combined government assistance up to 100% of eligible costs.

Eligible costs and retroactive treatment

Eligible costs are "new costs essential to the project and related directly to carrying out eligible activities" — scoped during the application review. Importantly, costs can be retroactive up to 12 months before your application date, but no earlier than March 21, 2025 (the program's hard start date). Projects must be completed no later than March 31, 2028. Practically, that gives you roughly two years of execution runway from a mid-2026 approval, which is tight for large capital-equipment projects — plan accordingly.

Who qualifies — the core gates

RTRI's eligibility is binary on each of the points below. Missing one knocks the application out of the competitive queue, regardless of how strong the underlying business case is.

The three-year incorporation rule and the pre-tariff viability rule are the two filters that catch most borderline applicants. If your business was incorporated in, say, June 2023, you will not meet the three-year threshold until June 2026 — after the current intake window has already closed. Similarly, if your 2024 financials show a going-concern problem that predates the tariff shock, the program will read that as pre-existing distress rather than tariff-driven distress, and the file will be declined regardless of recent pressure.

Proving tariff impact — the two pathways

Beyond the core eligibility gates, you must demonstrate that the tariffs have actually affected your business. RTRI recognizes two ways to do this, and you only need to satisfy one:

Pathway 1 — the 25% sales threshold

At least 25% of your sales (last complete fiscal year, or trailing 12 months) are into tariff-targeted markets. This is the simplest, most defensible test: pull your sales-by-country export data, calculate the ratio, and if U.S. and/or China sales represent 25% or more of total revenue, you clear the impact gate without needing to build a narrative. Exporters with heavy U.S. exposure typically qualify here on the first pass.

Pathway 2 — direct disruption narrative

If you don't clear the 25% threshold, you can qualify by documenting direct disruption. The program recognizes several forms of impact:

• Increased production material costs — steel, aluminum, components, or inputs that now carry tariff add-ons
• Higher retail pricing for finished products due to pass-through from tariffed inputs
• Import or export taxes added to your cost base or customer's landed cost
• Revenue decline or lost market access — cancelled orders, priced-out contracts, distributors pausing programs
• Employment effects — layoffs, hiring freezes, or participation in the federal Work-Sharing program

Pathway 2 is strictly evidentiary. Cost letters from suppliers, customer cancellation notices, Work-Sharing applications, board minutes discussing tariff impact, or sales data showing year-over-year decline tied to tariff timing all strengthen the file. Vague statements about "pressure from tariffs" without supporting documentation will not clear the gate.

Priority sectors

All eligible applicants can apply, but the program gives explicit priority to three sectors that Ottawa considers structurally critical to the Southern Ontario economy and to Canada's tariff-response posture. If your business operates in one of these, your application sits in a preferred pool.

Non-priority sectors are still eligible. RTRI is not a sector-exclusive program. In competitive review, though, the priority streams are weighted more favourably where tariff impact is comparable across applicants.

What the funding can pay for

RTRI funds projects that deliver productivity, cost-reduction, or resilience outcomes. Eligible activities must be executable between March 2025 and March 2028. The program groups fundable activities into six broad categories:

The program is deliberately broad here. That breadth is a feature, not a bug — RTRI is meant to meet businesses where their specific tariff response actually lives, rather than forcing every applicant into a single activity category. What it is not designed for: generic working-capital relief, general payroll support, or activities unrelated to tariff response.

Key restrictions — the quiet rejection triggers

Beyond the obvious eligibility criteria, a handful of operational rules disqualify a significant fraction of applications each intake:

• One application per applicant. Submitting multiple applications — even for distinct projects — will result in all of them being rejected. Pick your strongest project and submit once.
• One active FedDev Ontario project at a time. If you're currently under an active contribution agreement for a separate FedDev Ontario program (e.g. Business Scale-up and Productivity), your RTRI project must be distinct in scope from that existing agreement. Overlap is treated as a duplicate-funding issue.
• Distinctness requirement. The RTRI project cannot be the same work, in whole or in part, that's already funded under a different FedDev Ontario program. You need a clean boundary.
• Coordination with other tariff supports. RTRI is designed to work alongside other federal and provincial tariff-related programs. You can stack, but you must disclose all other public funding, and total government assistance will be capped during review.

How RTRI fits the broader tariff-response stack

RTRI sits inside a broader federal response to the 2025 tariff environment. Businesses building a full relief strategy typically layer RTRI with one or more of the following, subject to stacking disclosure:

• Large Enterprise Tariff Loan (LETL) facility — for larger firms above RTRI's 500-employee ceiling, offering liquidity against tariff-driven cash-flow pressure
• EDC and BDC tariff-response financing — working capital and trade finance specifically scoped to tariff-affected exporters and producers
• Work-Sharing program (Employment and Social Development Canada) — to manage temporary reductions in business activity without layoffs; RTRI accepts Work-Sharing participation as evidence of tariff impact
• Provincial Ontario programs — including sector-specific supports for automotive and steel under Ontario's own tariff-response framework
• SR&ED and NRC IRAP — where your tariff response genuinely involves technological uncertainty, domestic process R&D, or onshoring innovation (SR&ED) or commercialization of new capability (IRAP)

The programs are not mutually exclusive, but they are coordinated. FedDev Ontario reviewers will check for duplication against other federal and provincial supports during intake, and will adjust RTRI contribution sizing to stay within the total government assistance cap applicable to the file.

Where applications quietly fail

Beyond the headline eligibility gates, most rejections fall into a small set of preventable failure modes:

• Tariff impact that isn't actually documented. Applicants assert tariff pressure but attach no supplier cost letters, customer cancellations, Work-Sharing filings, or year-over-year revenue evidence. The narrative doesn't clear the gate without evidence behind it.
• Pre-tariff distress masquerading as tariff impact. If your 2023 and 2024 financials were already trending badly before March 2025, reviewers will read the decline as structural rather than tariff-driven. The program is not a general-purpose rescue facility.
• Project scope that reads like operating expenditure. RTRI funds defined projects with productivity, cost, or resilience outcomes — not ongoing payroll, rent, utilities, or working capital. Applications that can't describe a discrete project with milestones and deliverables get declined.
• Weak domestic/resilience angle. Projects that don't clearly move the business toward stronger domestic supply chains, market diversification, or productivity improvement miss the program's stated purpose. A project that just replaces one foreign tariffed supplier with another foreign tariffed supplier isn't what the program is funding.
• Stacking non-disclosure. Failing to disclose concurrent federal, provincial, or municipal support — or treating the 75%-ish stacking cap as optional — is a program-integrity issue that can void an agreement even after approval.
• Missing the FTE math. The 5 Southern Ontario FTEs / under-500 total rule is measured precisely. Seasonal staff, part-time hours, and cross-border employees all affect the count in specific ways that applicants often get wrong on the first pass.

Is RTRI the right program for you?

RTRI is a strong fit if you're a for-profit Southern Ontario business, incorporated at least three years, between 5 and 500 employees, with a clear pre-tariff operating history and documentable exposure to U.S. or China tariffs — particularly if you're in steel, automotive, or food security. It's especially well-suited to businesses that already have a concrete investment project queued up (a productivity upgrade, an automation line, a domestic-supplier qualification program, a market-diversification push) that the tariff shock has made more urgent but harder to self-fund.

It's a poorer fit if you're pre-revenue, if your business is younger than three years, if you're a sole proprietorship, if your tariff exposure is speculative rather than documented, or if what you actually need is working-capital relief rather than a project-scoped investment. For those situations, the LETL facility, BDC/EDC financing, or Work-Sharing are usually the better starting points.

Final thoughts

Tariff-response programs reward the businesses that can show their work: clean pre-tariff financials, documented impact, a discrete project with productivity or resilience outcomes, and a credible plan to execute inside the 2025–2028 window. The program is not looking for a grant narrative; it's looking for evidence that public dollars will produce a more resilient Southern Ontario operation than the business could have reached alone under the current trade environment.

If RTRI is on your list for this intake, use the time between now and May 1 to run the self-screen, pull your sales-by-country data, collect supplier cost letters, and scope a concrete project you can execute in the program window. The difference between a file that clears review and a file that doesn't is rarely the quality of the business — it's the quality of the evidence.