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estimated emissions
Carbon Hub / CBAM calculator
EU Carbon Border Adjustment Mechanism · definitive period
Price the carbon at the border.
Calculate the certificate exposure on EU-bound cement, steel, aluminium and fertilisers from 2026 through full phase-in in 2034.
CBAM cost = embedded emissions × imported volume × phase-in share × certificate price − eligible carbon price paid at origin
01 · Calculator
Model your shipment.
Choose a covered sector, annual volume and market. Move the year and price controls to stress-test the liability. The URL preserves the scenario.
Your annual carbon cost — year
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in 2030
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in 2034 — full price
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payable share now
How is this calculated?
Emissions = production × typical sector intensity (cement 0.70, steel BF-BOF 1.90, EAF 0.40, aluminium 1.60 direct, ammonia 2.00 t CO2/t; gas power 0.37, coal 0.95 t/MWh — IEA/EC benchmark ranges). Cost = emissions × price × payable share. Inside the EU ETS the payable share follows the official free-allocation phase-out; for exporters without a domestic price it follows the CBAM phase-in. Your verified (MRV) emissions give the exact figure.
Why does my bill explode by 2030?
Not a forecast — a law. Regulation (EU) 2023/956 phases out free allocation for CBAM sectors from 97.5% (2026) to 51.5% (2030) to 0% (2034) — so the share you must pay for rises from 2.5% to 48.5% to 100%. A plant paying for 2.5% of its benchmark emissions today pays for 48.5% in 2030 — ~19× more certificates at the same price.
What is CBAM and does it apply to me?
The EU Carbon Border Adjustment Mechanism prices the embedded CO2 of cement, iron & steel, aluminium, fertilizers, hydrogen and electricity imported into the EU. If you export these to the EU and have no domestic carbon price, your importer buys CBAM certificates at the EU ETS-linked price (€75.28 for Q2 2026) on a rising share of embedded emissions — 2.5% in 2026 to 100% in 2034.
Where do the prices and data come from?
EU ETS: Trading Economics (September 10, 2026). CBAM certificate: European Commission Q2 2026 official price (published 6 July 2026). UK ETS: ICE/Statista (2025). China: Argus (Mar 2025). California: CARB auction (Feb 2025). National taxes: World Bank State & Trends of Carbon Pricing 2025 / ICAP 2025. Facility emissions: Climate TRACE satellite estimates (2023) — indicative, not verified declarations.
Equipment heat loss
Measure exposed hot surfaces
Use measured surface area, temperature and operating hours to calculate heat loss from boilers, kilns, heat exchangers, valves and pipework. Inzonex supplies removable modular insulation for equipment that requires maintenance access.
- Design target: surface temperature at or below 45 °C, subject to the application and design review
- Claimed heat-loss reduction: up to 96%, subject to the measured boundary and insulation specification
- Removable construction for inspection and maintenance access
- Calculation record available for the selected equipment and operating conditions
Do not add a calculated reduction to an emissions report until the reporting boundary, factor, implementation date and verification method have been approved.
02 · Statutory ramp
Cost per tonne, year by year.
The table is static HTML for search and auditability, then progressively updated when the live EUA feed is available.
| Year | Phase-in share | Steel BF-BOF (1.9 t/t) | Cement (0.7 t/t) | Aluminium (1.6 t/t) | Ammonia (2.0 t/t) |
|---|---|---|---|---|---|
| 2026 | 2.5% | €3.58 | €1.32 | €3.01 | €3.77 |
| 2027 | 5% | €7.16 | €2.64 | €6.03 | €7.54 |
| 2028 | 10% | €14.32 | €5.28 | €12.06 | €15.07 |
| 2029 | 22.5% | €32.22 | €11.87 | €27.13 | €33.91 |
| 2030 | 48.5% | €69.44 | €25.58 | €58.48 | €73.10 |
| 2031 | 61% | €87.34 | €32.18 | €73.55 | €91.94 |
| 2032 | 73.5% | €105.24 | €38.77 | €88.62 | €110.78 |
| 2033 | 86% | €123.14 | €45.37 | €103.70 | €129.62 |
| 2034 | 100% | €143.18 | €52.75 | €120.58 | €150.72 |
03 · Evidence chain
From product code to declaration.
The calculator is a planning surface. The compliance file still depends on product scope, installation data, verification and importer records.
01 · SCOPE
Classify the goods
Confirm the CN code and whether the product is covered.
02 · MEASURE
Build embedded emissions
Use actual installation data or the applicable default value.
03 · VERIFY
Prepare evidence
Keep boundaries, precursors, factors and origin carbon-price records aligned.
04 · DECLARE
Support the importer
Transfer the verified data needed for the definitive-period declaration.
04 · Current guidance
Use the official file.
The Commission published ten definitive-period guides on 14 August 2026 and separate verifier guidance on 24 August 2026.
CHANGE BRIEFINGWhat the new guidance changesEVERGREEN GUIDECBAM explainedDATA QUALITYDefault valuesMETHODEmbedded emissions
Indicative planning tool, not legal, tax, customs or trading advice. Verify current rules and prices against the official sources used for your declaration.
Source: Inzonex Carbon Hub — inzonex.co.uk/carbon · prices dated as shown on each figure · schedule per Regulation (EU) 2023/956 · indicative analytics, not compliance advice.