How The Industrial Carbon Tax Affects Cost of Living and Food
Canadian politicians (primarily Liberals) have defended the federal industrial carbon tax—known as the Output-Based Pricing System (OBPS), which applies to large industrial emitters—as part of a broader carbon pricing system designed to be revenue neutral.
Let’s start with some political jargon squashing: “Revenue Neutral” means all direct proceeds from the federal OBPS (and fuel charge) are returned to the province or territory where they were collected, rather than becoming general federal revenue.
Defenders of the carbon tax frequently emphasize that, unlike the now-scrapped consumer fuel charge, the industrial system has minimal or no direct pass-through impact on household costs, food prices, or everyday consumers.
This is backed by modeling from the Canadian Climate Institute, which shows negligible effects on agriculture and households because large emitters absorb or mitigate costs without broad price increases.
First: The Single Study Problem
The “negligible cost” narrative cited by most Canadian politicians originates from a cluster of closely related government and government-adjacent sources, primarily the Canadian Climate Institute (CCI) and analysis by the Parliamentary Budget Office (PBO).
The PBO report itself was later found to contain a methodological error: Parliamentary Budget Officer Yves Giroux admitted his economic analysis erroneously included the impact of the industrial carbon price alongside the consumer carbon price, when it was only meant to model the consumer-level charge.
Even after correction, the conclusion was still framed as net-negative for the economy.
The CCI’s “negligible” claim rests on a specific and contestable design assumption: that the Output-Based Pricing System (OBPS) generates so few net costs at individual facilities that there is nothing meaningful to pass through. Under industrial carbon pricing systems, facilities only pay for emissions that exceed a set limit, so firms with lower emissions-intensity face fewer costs, and some can even profit by generating credits.
This is the foundation of the “near zero” argument. The problem is it models facilities in isolation and does not model the compounding effect of costs stacking at every node of the supply chain, which is the actual mechanism by which prices rise.
Corporations Do Not Absorb Taxes
Standard price theory, and the empirical record, establishes that when input costs rise, firms in competitive markets pass those costs downstream. A Fraser Institute analysis using Statistics Canada Input-Output tables assumed full cost pass-through along the value chain, finding that a $50/tonne carbon tax would cause four key industries, petroleum and coal manufacturing, agricultural chemical manufacturing (fertilizers/pesticides), electric power generation and distribution, and basic chemical manufacturing, to face unit production cost increases of more than 5% in the short run. Reference:
The carbon tax is applied to refineries, utility companies, and other intermediaries that supply electricity, fuel, and other energy that industries use. The tax then translates into higher fuel prices, which increase input costs. A carbon tax also affects the profitability of companies if they choose not to pass increased production costs on to consumers.
Choosing not to pass costs on is a decision to accept lower profits or operate at a loss, which is not a realistic long-run expectation from publicly traded corporations or large private operators.
Step-by-Step: How the Tax Compounds Through the Food Supply Chain
STEP 1 Energy Production & Refining
Everything in the food supply chain runs on energy. The industrial carbon tax hits at the point of production.
The carbon tax is applied to refineries and utility companies, the primary suppliers of electricity, fuel, and energy that all downstream industries use.
Reference: Canadian Energy Centre
At $110/tonne (as of April 1, 2026), this adds a cost-per-unit to every barrel of oil refined, every cubic metre of natural gas processed, and every kilowatt-hour of electricity generated from fossil sources. Those costs are not absorbed; they are built into the price of fuel and electricity sold to every downstream user.
STEP 2 Fertilizer & Agricultural Chemicals
Fertilizer manufacturing is one of the most energy-intensive processes in the food supply chain. Natural gas is both a fuel and a feedstock for nitrogen fertilizers (ammonia synthesis).
Primary agriculture has an emissions intensity an order of magnitude higher than food manufacturers. It is also essential to capture the effect of emissions pricing on the cost of producing inputs such as natural gas and fertilizers, both of which are produced by emissions-intensive sectors.
Reference: Wiley Online Library
Agricultural chemical manufacturing, including pesticides, fertilizers and others, faces unit production cost increases of more than 5% under a $50/tonne carbon tax.
That cost is baked into the price per tonne of fertilizer shipped to farms. By the time the price reaches $110 to $170/tonne, those input cost increases scale proportionately.
STEP 3 The Farm
The farm receives compounded cost increases from two directions: (a) the higher price of purchased inputs like fertilizer, fuel, and electricity, and (b) any direct obligations under provincial industrial pricing systems.
It starts with farmers, who pay carbon taxes on fuel, fertilizers, and equipment, taxes that are further compounded by GST. Despite government rebates, production costs continue to climb.
In PEI, agriculture has an energy input share of 7% of production and relies on diesel and gasoline for its energy inputs, and as a result of inter-industry demand and supply linkages as other industries’ costs are pushed onto the agriculture sector, the industry will see its production cost increase by over 4%.
Reference:
This is a province-level empirical finding, not a hypothetical.
Canada’s federal carbon tax was widely criticized by farmers for increasing expenses related to fertilizer, propane, and rail shipping.
A peer-reviewed study in the Canadian Journal of Agricultural Economics specifically examined pass-through in western Canadian grain transportation and found evidence of overshifting in the wheat market, meaning the tax cost passed to farmgate prices exceeded the direct tax amount, a marker of market power in the transportation sector.
STEP 4 Transportation (Farm to Mill / Processing Facility)
Canada’s food system is uniquely exposed to transportation costs due to geography. The industrial carbon tax hits diesel consumption at the refinery level, flowing into trucking and rail costs.
For a truck hauling food between Toronto and Montreal once a week, the additional carbon-tax burden amounted to roughly $2,000 per year when the carbon price stood at $40/tonne. On April 1, 2026, the carbon price reached $110 per tonne, more than double what it was when the Ukraine war began. For that same weekly Toronto to Montreal route, the additional carbon-tax cost alone rises to roughly $6,000 per year compared to 2018.
Canada likely sees 800 to 1,200 long-haul food truck trips each day, many covering distances of roughly 1,000 kilometres. At a carbon price of $110 per tonne, the diesel tax component alone represents approximately $34 million to $52 million per year in additional costs across those shipments, built into the price of food by the time it reaches store shelves, and this estimate excludes additional costs such as clean fuel regulations, refrigeration units, empty backhauls, secondary distribution routes, and warehousing operations.
When those factors are included, the financial impact across the food supply chain could easily be three or four times higher.
STEP 5 Food Processing (The Mill, the Slaughterhouse, the Plant)
Processing facilities are energy-intensive. Milling grain, pasteurizing dairy, refrigerating and packaging product all depend on electricity and thermal energy. The industrial carbon tax applies directly to large processing facilities and indirectly through elevated electricity prices to smaller ones.
Food manufacturing will see cost increases of approximately 2%, with basic chemicals, which are inputs to food packaging and preservation, seeing cost increases of around 9%, resulting from higher energy input shares.
Food product manufacturers have relatively low direct emissions intensity. However, many of the inputs they purchase from other sectors embody significant upstream emissions. The effect of policy-induced changes in the cost of petroleum refining, chemical manufacturing, primary agriculture, food manufacturing, and truck transportation, extending to retail grocery stores, can potentially be large.
Reference:
This intersectoral linkage, the upstream embodied emissions problem, is precisely what single-facility, single-sector analysis misses.
STEP 6 Distribution & Warehousing
Distribution centres are large, climate-controlled facilities running on electricity and natural gas. Refrigerated warehousing is energy-intensive. Every pallet moved and every degree of temperature maintained carries an embedded energy cost that has been inflated by the industrial carbon tax at the generation level.
Carbon costs accumulate across the entire supply chain. By the time food reaches a distribution centre, its price already reflects higher input costs at earlier stages, from farming to processing to transportation.
Distance already makes food logistics expensive, and added policy costs compound the challenge.
For communities in Atlantic Canada, Northern Ontario, or the Prairies, the compounding effect of long-haul distance interacting with carbon-elevated energy costs is disproportionately severe.
STEP 7 Retail (The Grocery Store)
The grocery store operates on thin margins (typically 1 to 3% net). It cannot absorb layered cost increases from every upstream node. It passes them through to shelf prices.
Research into the implications of carbon-taxing policies on food supply chain affordability in Canada finds a compounding effect of carbon pricing pushing wholesale prices to rise faster, with a measurable shift in wholesale and industrial prices since the introduction of the carbon tax.
Reference:
A scoping review published in a peer-reviewed journal found that the implementation of a mandated carbon tax across all provinces in Canada led to reduced GHG emissions and an increase in food prices, with carbon taxes reducing disposable income and raising food prices, and that lower-income households bear a disproportionate burden.
The Compounding Math
A hypothetical modelled by Dr. Sylvain Charlebois (Dalhousie University’s Agri-Food Analytics Lab) illustrates the cascade: if a farmer starts with a $100,000 base production cost and each intermediary in the supply chain pays an additional $5,000 in carbon tax, the final price could increase by as much as $89,513, of which $67,230 consists solely of carbon tax and GST on the tax itself.
Reference:
The GST-on-carbon-tax interaction is a compounding mechanism that the “negligible effect” models routinely omit: each time the carbon tax raises the price of a good or service, GST is applied to that higher price, generating tax-on-tax accumulation through every stage of the chain.
Why the “Negligible” Claim Fails
The government-cited CCI and similar studies share a structural flaw: they model the carbon cost at a single facility in isolation, applying the OBPS credit system, and conclude that net costs are small. What they do not model is:
- The cascading effect — costs incurred at energy, fertilizer, and transportation stages that arrive at the farm and processor as higher input prices, before those entities ever face their own direct carbon obligation.
- The GST compounding — tax applied to tax-inflated prices at every transaction.
- Geographic amplification — Canada’s vast supply distances mean transportation’s carbon cost component multiplies with every kilometre.
- The full upstream embodied emissions — food product manufacturers have relatively low direct emissions intensity, but the inputs they purchase from other sectors embody significant upstream emissions, and capturing the full effect requires tracing through petroleum refining, chemical manufacturing, primary agriculture, food manufacturing, truck transportation, and retail grocery stores. Wiley Online Library
The conclusion is straightforward: the industrial carbon tax generates hundreds of millions of dollars in annual revenue. That revenue originates from real cost increases at industrial nodes throughout the economy.
Corporations, including refineries, fertilizer plants, rail operators, trucking companies, and food processors, are not charitable institutions.
The real burden remains embedded in the supply chain, compounding costs at every stage and ultimately driving up food prices for Canadians.
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