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, funded by the levy on systemically important financial institutions — 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.