Your contractor is building their 2027 rate submission right now.
Carbon pricing in Alberta has changed a lot since 2025. The federal consumer fuel charge on gasoline and diesel was set to zero on April 1, 2025. Alberta's industrial carbon price under TIER was frozen at $95/tonne, and under the May 2026 Canada-Alberta implementation agreement it moves to $100/tonne on January 1, 2027. For most services contractors, the direct carbon cost on their fuel went down, not up. But "carbon compliance costs" still show up in rate requests, and most of those requests will land on your desk this quarter.
The problem isn't that contractors recover costs. They're entitled to recover real cost increases. The problem is what happens when your MSA has no mechanism for it: your contractor submits a rate increase that bundles carbon costs with labour, equipment, and overhead. There's no line item. No reference to a regime or a rate. No audit mechanism. You accept the rate, pay for two more years, and have no way to know whether the "carbon" piece reflects a real cost, a fuel charge that disappeared in April 2025, or margin - because the MSA never defined how the cost is passed through.
Multi-year services contracts in Alberta's oil and gas and construction sectors are the contracts most exposed to this problem. A three-year MSA signed today without a carbon passthrough clause will run through TIER prices of $100/tonne in 2027 through 2029 and $115/tonne in 2030 - with no mechanism to verify whether any carbon charge you're paying tracks a cost the contractor actually carries.
Why carbon costs are different from other cost increases
Labour rate increases are negotiable. Equipment rates are market-priced. Both can be benchmarked. Carbon pricing costs are different: they're set by regulation and published in advance. The TIER change on January 1, 2027 is not a surprise - Canada and Alberta published the schedule in May 2026. Your contractor can know exactly what the carbon price will be on the first day of next year, and whether it applies to them at all.
That predictability cuts both ways. It means any carbon cost is fully verifiable - the price is public, fuel and emissions records exist, and the math is straightforward. But it also means there's no good reason for a multi-year MSA to handle it informally. When the contractor's rate submission says "rate increase to reflect carbon levy changes," and there's no clause in the MSA defining how that works, you're accepting a number you can't validate against a known cost driver.
A proper carbon passthrough clause does the opposite. It names the regime and the current rate, defines how increases are calculated and invoiced, requires the contractor to show their work, and gives you the right to audit the numbers. That's not adversarial - it's just good contract administration.
Three contract types most exposed
Not every services contract is equally exposed. Carbon cost claims matter most where fuel consumption is high and where the contract runs across a January 1 rate-change boundary. Here are the three categories where I see the most exposure:
Heavy equipment and civil services - plant maintenance, excavation, earthworks
Heavy equipment is the most fuel-intensive category in services procurement. A D10 dozer running full shifts consumes 100–130 litres of diesel per hour. An excavator in continuous operation runs 30–50 litres per hour. Before April 2025, the federal fuel charge on that diesel added up fast on a 12-week plant turnaround. Today there's no consumer carbon charge on it in Alberta, so any carbon component in a heavy equipment rate needs a clear basis. If the contractor can't name the regime and the rate, it doesn't belong on your invoice. Multi-year civil and maintenance contracts without a passthrough clause can end up carrying carbon recovery that no longer matches any real cost.
Drilling and well services - completions, workovers, coiled tubing
Drilling and well services are governed by Schedule D rate structures - labour categories, equipment day rates, chemical consumables. Carbon costs in this category flow through fuel consumption on the rig and ancillary equipment. Until April 2025, the federal fuel charge applied to diesel bought by contractors who weren't themselves under the TIER large-emitter regime. That charge is gone, but day rates built in 2023 and 2024 may still carry it. In a multi-well program MSA, that's worth checking - and the rate schedule rarely has a carbon line item that can be verified against actual fuel consumption.
Transportation and logistics - fluid hauling, vacuum truck services, matting and site prep
Trucking and transport services have been dealing with fuel surcharge clauses for years, but carbon passthrough is distinct from a fuel surcharge - and most transport MSAs don't address it separately. When the federal fuel charge was in place, it was built into pump prices, so a fuel surcharge indexed to pump prices already captured it - and its removal on April 1, 2025 should have shown up as a lower surcharge. If a transport contractor is also billing a separate "carbon" component, you may be paying for it twice, or paying for a cost that no longer exists. The numbers are smaller per vehicle, but they add up across a full transport services program - and they're unverifiable without a clause.
The contractor submits a rate increase letter in November. It says rates are increasing 6–9% effective January 1 to reflect "carbon compliance costs, labour market conditions, and general cost increases." There's no breakdown. No fuel consumption basis. No reference to a carbon regime or rate. The owner accepts the rate - because the increase seems reasonable and the contractor is a known vendor. In year two, the same letter arrives. In year three, it arrives again. Over the life of the contract, the owner has paid three rounds of "carbon cost" increases with no mechanism to verify whether any of it tracked an actual carbon cost. The carbon cost recovery in year three might reflect a real cost - or a fuel charge that was eliminated in April 2025. Without a clause, you'll never know. The problem isn't that the contractor is necessarily gouging - it's that neither party has the tools to verify, which means disputes become relationship problems instead of math problems.
What a carbon passthrough clause actually does
A well-drafted carbon passthrough clause doesn't cap what the contractor can recover - it creates a verifiable mechanism for recovery. The contractor recovers legitimate carbon costs. You can audit the calculation. Neither party is guessing.
The clause needs to do six things:
- 1. Name the applicable regime and current rate. The clause identifies the specific regulatory regime (Alberta TIER compliance cost, any future federal or provincial fuel charge, or none) and states the rate in effect at contract execution - for TIER in Q4 2026, that's $95/tonne, moving to $100/tonne on January 1, 2027. If no regime applies to the contractor's operations, the clause should say so, and say that no carbon cost recovery is payable unless one is introduced. This anchors the baseline. Any future passthrough is calculated as an incremental increase above the named baseline rate.
- 2. Define the passthrough mechanism. How does the contractor invoice for carbon costs - as a separate line item on every invoice, as a quarterly reconciliation, or as an annual rate adjustment? Separate line items with a fuel consumption quantity and levy rate calculation are the most auditable. Annual rate adjustments built into Schedule A rates are the least visible. The clause should specify which mechanism applies and prohibit bundling carbon costs into undifferentiated rate increases without disclosure.
- 3. Require fuel consumption documentation. The contractor's carbon cost claim is only as credible as their fuel records. The clause should require the contractor to maintain fuel consumption logs by equipment type and project, to provide quarterly fuel consumption summaries on request, and to make detailed records available within 30 days of an audit request. This is standard recordkeeping for any fuel-intensive contractor - the clause makes the obligation explicit and enforceable.
- 4. Specify the rate reference. When the carbon price changes, which published source governs? The clause should reference Alberta's TIER Regulation and its published price schedule, or the governing rate schedule for any future fuel charge - whichever applies to the contractor's operations. This prevents disputes about which rate to use when the contractor and owner are reading different documents.
- 5. Set a dispute notice obligation. If the owner disputes a carbon cost line item, the same dispute notice mechanics that apply to regular invoice disputes should apply here. The contractor gets written notice within the contract's dispute window (or the PPCLA window, if the work is covered by the PPCLA). The dispute is confined to the carbon cost calculation, not the rest of the invoice. The undisputed balance is paid on time. Without this, a carbon cost dispute can become a pretext for holding the entire invoice.
- 6. Address the MSA renewal interface. At each annual rate review, the carbon passthrough mechanism should be reviewed alongside labour and equipment rates. The clause should specify what documentation the contractor must provide at renewal to support any proposed change to the carbon cost recovery methodology - and confirm that the passthrough mechanism survives rate schedule changes without requiring a full contract amendment.
The Q4 window: why this needs to happen before November 30
I've named November 30 as the practical deadline for addressing carbon passthrough in existing multi-year MSAs - and it's not arbitrary. Here's the sequence:
Most multi-year services MSAs with January 1 renewal terms receive contractor rate submissions in November. If carbon cost recovery isn't addressed in the contract before those submissions arrive, the discussion defaults to the contractor's framing. You end up negotiating the overall rate increase rather than verifying the carbon cost component specifically. Once you've accepted a rate increase that bundles carbon costs, the clause language becomes moot for that year - you've already agreed to the number.
A contract amendment or a new MSA clause that addresses passthrough needs to be in place before November rate submissions. That means the conversation, the drafting, and the execution need to happen in October. November 30 is the latest responsible date - and that's assuming a one-week turnaround from drafting to execution, which is optimistic for a busy legal team managing Q4 closings at the same time.
For multi-year MSAs running through 2027 and beyond, January 1, 2027 is not the only date that matters. The TIER schedule now runs to $115/tonne in 2030 and $130/tonne by 2035, and carbon policy in Canada has changed direction more than once since 2025. This conversation is not a one-time fix - it's a contract framework that needs to be in place before the next change.
How this connects to your annual rate review process
If you're running a proper annual MSA rate review - ideally starting in October, benchmarking before the contractor submits - carbon cost passthrough is one of the five items that review should address specifically. The others are labour rate benchmarking, equipment utilization rate validation, overhead and markup verification, and Schedule D scope completeness.
Carbon cost recovery is distinct from those items because the cost driver is regulatory, not market-based. That means the benchmark is a published number, not a competitor quote. You don't need a market survey to know that the TIER price is $100/tonne for January 2027, or that the consumer fuel charge is zero. You need a clause that requires the contractor to show which regime applies, calculate it correctly, and show their work.
If you don't have a formal rate review process, the Annual MSA Rate Review Guide on this site covers the 60-day timeline and the framework for handling contractor rate submissions before they set the baseline. The carbon passthrough conversation fits naturally into that process - it's not a separate negotiation, it's an item on the rate review agenda.
Similarly, if your MSA already has escalation index provisions - CPI-linked escalation, BuildForce index references, or flat-cap mechanisms - carbon costs should not be double-counted inside those provisions. The Tariff Playbook for Alberta Services Contracts covers how to structure escalation clauses so carbon, labour, and materials inflation don't compound in ways that produce unintended cost recovery for the contractor. A properly built escalation structure and a carbon passthrough clause are complementary - not redundant.
This is general information, not legal or tax advice. Carbon pricing rules are still changing, so confirm the current rates and how they apply to your contracts with your advisors before you finalize clause language.
MSA up for renewal before January 1?
If you have multi-year services MSAs renewing in Q4 - or if you're about to receive contractor rate submissions and haven't addressed carbon passthrough - I can help. I review the contract language, identify the gap between what your clause currently says and what it needs to say, and draft the amendment or provide a clause template you can work from with your lawyer. It's a lot easier to fix before the first unexplained rate increase than after.