The definitive regime starts. Importers of more than 50 t a year of CBAM goods need authorised CBAM declarant status.
Turn importers' CBAM questions into new clients.
A CBAM calculator for your website. Importers compare two suppliers on one shipment, and the enquiry reaches you with their figures attached.
The calculator below is working. Change the import year and the cheaper supplier changes.
Your importers are already building up a CBAM cost on 2026 imports.
Certificates for 2026 imports go on sale in February 2027. The first declaration is due that September. Importers are asking what it will cost now.
Certificates for 2026 imports go on sale. The 2026 price is the quarterly EU ETS auction average: €75.36 for Q1 and €75.28 for Q2.
At the end of each quarter, declarants must hold certificates for at least 50% of the emissions imported so far that year.
First annual CBAM declaration and certificate surrender, covering all 2026 imports.
The cost also rises every year. The free-allocation deduction falls from 97.5% of the product benchmark in 2026 to zero in 2034. The same shipment costs more each year.
Most CBAM calculators stop at the cost.
The importer then asks the harder question. Is the cleaner supplier cheaper, and from which year?
Which supplier is cheaper once CBAM is added?
Enter one shipment and two suppliers. See the estimated CBAM cost for each, and the import year when the cheaper supplier changes.
Which supplier costs less after CBAM?
Carbon price already paid in the supplier's country is not deducted. If the suppliers are in different countries, this can change the result.
Supplier A
—Supplier B
—Which supplier is cheaper, year by year?
| Year | A total | B total | Cheaper |
|---|
Same certificate price every year. Only the deduction and the default mark-up change.
Discuss this scenario with the CBAM team.
Send the figures you just entered, so the first conversation starts from your scenario.
In this demo, the email goes to DecisionPixel. On a broker's site, it goes to the broker's team.
Your scenario summary is ready.
This is the text your broker receives. It includes your numbers, so the first reply can be specific.
Broker or forwarder? On your version, this summary lands in your inbox. A branded PDF and CRM delivery are add-ons. See pricing.
How this estimate works
Emissions used: If data source is verified actual, the supplier's entered figure is used directly. If data source is EU default, the regulatory mark-up for the import year is added (iron & steel, aluminium, cement: 10% in 2026, 20% in 2027, 30% from 2028; fertilisers: 1%).
Free-allocation deduction: deductionPerTonne = benchmark × freeAllocationShare(year). The free-allocation share falls each year (97.5% in 2026 down to 0% in 2034).
Payable emissions per tonne: max(0, emissionsUsed - deductionPerTonne). It floors at zero per good (no netting across goods).
Estimated certificates: tonnage × payablePerTonne. One certificate covers one tonne of CO₂e.
Estimated CBAM cost: certificates × certificatePrice.
Total (material + CBAM): materialCost + estimatedCbamCost.
Supplier break-even: (payableA - payableB) × certificatePrice. Shows how much more per tonne supplier B can charge and still land cheaper after CBAM.
Rule set: cbam-supplier-v3. All benchmark and emission defaults are demo values, not official EU values.
What this does not include
Official EU default values and benchmarks (the user enters them), route-specific benchmarks, cross-sectoral correction factor, carbon price paid in the country of origin, quarterly holding rule, penalties, customs duty, freight, currency, price changes between years.
Key dates: certificates for 2026 imports go on sale on 1 February 2027. The first annual CBAM declaration, covering all 2026 imports, is due by 30 September 2027.
Your data
The calculation runs in this browser. Your inputs and results are not sent to DecisionPixel. Enquiry details leave this page only when you copy them or send them from your own email app.
Estimate only. Product numbers are demo values, not official EU values. The certificate price is your assumption, not a forecast. This is the generic demo. Your version carries your logo, your colours and your declarant details, and sends enquiries to your team.
The tool carries your brand.
The dashed header in the calculator is your slot. The delivered tool works as its own page or inside one of your service pages, and every enquiry goes to your team.
- One branded page, plus the files to install it on your own site.
- Your logo, your colours and your broker or declarant name.
- The values, wording and disclaimer you approved.
- Each enquiry arrives with the full scenario, not just a name and an email.
Annual care and support from £540 a year, optional. Changes £144 an hour. You get a working copy of your tool's source code and settings at acceptance.
How the calculation works.
Formula
Emissions used: If data source is verified actual, the supplier's entered figure is used directly. If data source is EU default, the regulatory mark-up for the import year is added (iron & steel, aluminium, cement: 10% in 2026, 20% in 2027, 30% from 2028; fertilisers: 1%).
Free-allocation deduction: deductionPerTonne = benchmark × freeAllocationShare(year). The free-allocation share falls each year (97.5% in 2026 down to 0% in 2034).
Payable emissions per tonne: max(0, emissionsUsed - deductionPerTonne). Floored at zero per good (no cross-good netting).
Estimated certificates: tonnage × payablePerTonne. One certificate covers one tonne of CO₂e.
Estimated CBAM cost: certificates × certificatePrice.
Total (material + CBAM): (materialPrice × tonnage) + estimatedCbamCost.
Supplier break-even: (payableA - payableB) × certificatePrice. That is how much more per tonne supplier B can charge and still cost less once CBAM is added.
Free-allocation share by import year
2026 97.5% · 2027 95% · 2028 90% · 2029 77.5% · 2030 51.5% · 2031 39% · 2032 26.5% · 2033 14% · 2034 0%.
Default-value mark-up table
Iron and steel, aluminium, cement: 10% in 2026, 20% in 2027, 30% from 2028 onwards. Fertilisers: 1% in all years.
Inputs
- CBAM product and import year.
- Shipment size in tonnes.
- CBAM benchmark for the product.
- Certificate price. The calculator does not forecast it.
- Both suppliers: country of origin (optional), material price per tonne, data source (verified actual or EU default), and embedded emissions per tonne.
Assumptions in this demo
- Benchmark and emission defaults are demo values, not official EU default values or benchmarks.
- Both suppliers use the same benchmark.
- One shipment. The 50 t yearly threshold is shown as a flag, not a filing.
- Prices are in euros, because CBAM certificates are priced in euros.
What is not included
Official EU default values and benchmarks (the user enters them), route-specific benchmarks, cross-sectoral correction factor, carbon price paid in the country of origin, quarterly holding rule, penalties, customs duty, freight, currency, price changes between years. Your version can include any of these.
Limits
This is an estimate to start a conversation. It is not a filing calculation, and it is not customs, tax or legal advice. Confirm the declarant obligation, CN code, default value, benchmark and certificate price with an authorised CBAM declarant before acting.
How your version is checked
Against at least five of your own shipments, plus extreme and invalid inputs, small screens, keyboard use, and both themes. The checklist is part of the written scope.
See the equipment finance demo, built the same way · Pricing and scope
How a build runs.
Scope
What your importers need to work out, which CN codes are involved, and what data you hold.
You approve the rules
The formula, the values, the wording, the limits and five worked examples from real shipments.
Build and testing
Your examples, extreme tonnages and prices, small screens and keyboard use. Then the enquiry is wired to your inbox.
Acceptance
The written checklist from day one. You sign it off before the tool goes on your site.
CBAM decision tools, from £3,000.
One tool, built around the values, wording and checks you approved, in your brand, live in two to three weeks.
Two suppliers compared, up to eight inputs, your disclaimer, and an enquiry that arrives with the full scenario. One revision round. You get a working copy of your finished tool's source code and configuration at acceptance.
Annual care and support from £540 a year, optional. Changes £144 an hour.
PDF exports, CRM delivery, multiple languages and multi-site deployments are quoted in the written brief. Additional work is £144 an hour.
Send us a shipment.
A typical shipment, a couple of CN codes, and whether you hold verified supplier emissions or use the EU default value. That is enough for a scope and a price.