Some private gains are created by shifting costs onto others. The Accord prices those costs at the source: carbon, methane, speculation, systemic financial risk, pavement destruction, public-health harms, aquifer depletion, interchange extraction, and labor-market undercutting.
Carbon emissions impose costs on future generations, climate-vulnerable communities, and public-health systems. Today no federal price exists. The Inflation Reduction Act provides incentives for low-carbon production but does not price emissions — and the market signal that would otherwise tell economic actors to substitute toward lower-carbon production is missing.
The cost shows up anyway. Coastal cities pay it through sea-level adaptation. Public-health systems pay it through heat-event hospitalizations and air-quality-driven respiratory illness. Insurance markets pay it through climate-risk repricing of property and infrastructure. Future generations pay it through cumulative warming. None of these payers are the emitter; all are reluctant counterparties to a transaction the emitter never asked their permission for.
Source-collected carbon fee on US CO₂-equivalent emissions, with the price following a statutory escalator schedule and a hard cap. Universally paired with a household rebate (Energy Stipend) delivered via FedCard so net incidence is progressive at the bottom of the income distribution. Carbon-fee revenue above a $160/ton rebate ceiling flows to the Climate Adaptation Trust — one of only two ring-fenced trusts in the architecture (the other is the Financial Stability Reserve from the SIFI levy). All other priced externalities flow to the General Fund.
The framing is actuarial. Carbon pays the cost it imposes; the rebate restores household purchasing power on average consumption; the Trust funds adaptation capital that the externality itself created the need for.
Emitters at the source. Fossil-fuel producers and importers (upstream collection at the wellhead, mine, or import point — making consumer-side avoidance moot). Point-of-use industrial emitters where upstream collection is impractical (cement, steel, chemicals).
Pass-through to consumers happens via energy and goods prices. A typical household sees the carbon fee primarily as higher prices on gasoline, natural gas, electricity (where fossil-generated), and carbon-intensive goods — offset on the income side by the per-adult-per-child Energy Stipend.
Households receive the rebate regardless of consumption. A household emitting below the published average receives a net transfer (rebate exceeds carbon-fee incidence). Energy-stretched households — rural, cold-climate, low-income — receive the same rebate as everyone else, which is sized to fully offset average emissions at the start rate.
Per ProPublica and CBO comparative analyses, every published carbon-fee-and-dividend design with universal per-capita rebates shows progressive net incidence at the bottom 60% of the income distribution. The architecture's rebate envelope is sized for that result.
The rebate ceiling at $160/ton freezes the per-household rebate amount once the fee crosses that level (around Year 8–10 at the canonical escalator). By that point decades of price signal will have reshaped consumption; the rebate's redistributive role decreases as decarbonization succeeds and the Climate Adaptation Trust's role grows.
Substantial; canonical scoring on /scoring.
Carbon-fee revenue follows a humped trajectory by design. It grows with the escalator through the early decades. It peaks somewhere before the $680/ton cap is reached as price-induced substitution accelerates. It declines as decarbonization succeeds — meaning the long-run revenue from this stream is intentionally diminishing, which is the architectural commitment.
The Climate Adaptation Trust receives the supra-rebate-cap portion of revenue. Through the middle decades, that flow grows as the price escalates beyond $160/ton; it provides the adaptation capital for sea-level response, infrastructure hardening, and managed-retreat coordination that the externality itself created the need for.
See tax ladder · fiscal scoring
- Cross-border-shopping arbitrage
- Border-adjustment fee on imports from non-aligned jurisdictions prices embedded carbon at the customs entry. Aligned jurisdictions in the Alliance Incentive network are credit-treated reciprocally.
- Methane substitution
- Methane is priced separately under the Methane Accountability and Reduction Levy at $1,200/ton CH₄. The Natural Methane Reconciliation protocol prevents double-counting: gas leaked before combustion is a methane event; gas burned at a burner tip is a carbon event. No molecule pays both.
- Underground-economy avoidance
- Source collection at the wellhead, mine, or import point makes consumer-side avoidance moot. The fee is in the price by the time the consumer sees the good.
- Carve-out lobbying
- No exemptions in canonical design. Cement, steel, agriculture, and aviation all pay. Where transition support is needed (sectors facing structural decline), it's provided through General Fund appropriation as a separate program — never as a carve-out from the levy.
The combination of source-collection and the methane-companion levy makes carbon-fee evasion difficult.
- Methane Accountability and Reduction Levy
- Parallel architecture for CH₄: $1,200/ton start, +$240/yr to $2,880/ton cap. Custody-transfer reconciliation prevents double-counting against carbon.
- FedCard
- Rebate delivery rail, shared with VAT Pre-bate, Universal Child Allowance, and SS 2.0 benefits. Universal account; monthly disbursement; no application.
- Climate Adaptation Trust
- Ring-fenced. Receives carbon-fee revenue above the $160/ton household rebate ceiling. Funds sea-level adaptation, infrastructure hardening, managed-retreat coordination.
- Externality Limiter (Engine 6)
- The broader engine stack covering carbon, methane, and the climate-policy infrastructure.
- Alliance Incentive (Engine 8)
- Reciprocal market access for jurisdictions aligning carbon floors with the Accord. Border-adjustment fee falls on non-aligned imports.
The carbon fee is the centerpiece of the architecture's externality-pricing stack. The Methane Accountability and Reduction Levy is its CH₄ companion. FedCard is the rebate delivery rail. The Climate Adaptation Trust is one of only two ring-fenced trusts in the entire Accord — chosen because long-horizon adaptation capital must be insulated from annual appropriation politics. The Externality Limiter engine documents the broader stack.
Carbon fee is regressive — energy is a larger share of low-income household budgets. A flat per-ton fee falls more heavily on rural and cold-climate households who heat with oil or natural gas and drive longer distances. The Pre-bate-style rebate is politically vulnerable to future cuts; without it the levy is materially regressive.
The rebate is per-adult/per-child and flat — meaning low-income households (which emit less than average) receive a net transfer. Rural and cold-climate households receive the same rebate as everyone else, calibrated to fully offset average emissions at the start rate. Every published carbon-fee-and-dividend design that's been scored (Citizens' Climate Lobby, the Resources for the Future modeling, the Carbon Tax Center analyses) shows progressive net incidence at the bottom 60% of the income distribution. The architecture's rebate envelope is sized for that result.
Universal rebates are politically more durable than means-tested benefits because every adult is a recipient and therefore a stakeholder. The same logic that makes the VAT Pre-bate stable applies here.
For genuinely high-emitting low-income households (long-distance commuters in rural cold-climate regions), Skills Wallet capacity and the broader Workforce Augmentation engine fund electrification transitions; the architecture's response is to support the transition, not to create permanent carve-outs.