● UK CBAM ENFORCEMENT: -- DAYS  |  --:--:--  |  1 JANUARY 2027
● CBAM ENFORCEMENT: -- DAYS

Your imports are about to get £55/tonne* more expensive

Document foreign carbon taxes. Claim Carbon Price Relief (CPR). Know your exact CBAM exposure before January 2027.

A typical UK steel importer bringing in 10,000 tonnes from Turkey faces £878,000 in net CBAM liability from January 2027 — after Carbon Price Relief. Default emission factors push the gross figure higher still.

5
CBAM Sectors Covered
10+
Source Countries
HMRC
Regulation-Aligned
--
Days to Enforcement
The Compliance Problem

Most importers don't know what they owe

CBAM is a border tax with embedded complexity — most finance teams are not ready

📊

Unknown liability

Default emission factors overstate your liability by 2–4×. Without verified mill data, you're planning around the worst-case figure.

🧾

CPR left unclaimed

Carbon Price Relief is available for imports from qualifying ETS countries — but only with documented evidence. Most importers miss it.

📁

Record-keeping gap

Regulation 16 requires 6 years of CBAM records including emissions intensity to 5 decimal places. Almost no importer has this in place.

⏱️

The 2028 deadline

First CBAM return due 31 May 2028 covering 2027 imports. You need data collection in place from 1 January 2027 — not 1 April 2028.

Free CBAM Calculator

Your indicative CBAM liability in 90 seconds

Full regulatory compliance — aligned to CBAM (Emissions & Verification) Regulations 2026

Import Parameters
Monitoring Period (Reg. 9)
Reg. 9(2): imports before 1 Jan 2028 may use either basis. From 1 Jan 2028, Reg. 9(3) applies.
Commodity Type (Schedule 15 FA 2026)
Import Volume (Metric Tonnes)
= 10,000,000 kg (net of packing)
Quick:
Export Country
Place of Origin — Country of Production (Reg. 5)
Per customs rules of origin (TCTA 2018 ss.17(1)-(6)). May differ from export country.
⏱ Carbon prices updated quarterly. Current rates as at Q2 2026. Source: ICAP Carbon Action.
Emissions Data Type (Reg. 6(1)(c)-(e))
Carbon Price Relief (CPR)
CPR requires GACI-accredited verification · 6-year record retention
Net Zero Commercial Analysis
SEPARATE from CBAM compliance — voluntary credits do NOT reduce CBAM liability
CBAM Compliance Liability
Gross CBAM Levy
£0
0 tCO₂ × £55/t
⚠ Full liability without CPR
Carbon Price Relief (CPR)
£0
Net Payable to HMRC
£0
Gross − CPR = Net
2027 Annual Return · Due 31 May 2028
0%
CPR
Levy Breakdown
■ Carbon Price Relief ■ Net Payable
Calculation Detail
Please accept the declaration of accuracy to continue
GACI-verified compliance documentation · 6-year record retention
CBAM Proof by Archimedes Lever Ltd (Co. 16859549). Estimates only — not tax advice. Consult a qualified adviser before filing HMRC declarations. UK CBAM levy rate (£55/tCO₂) is the current UK ETS benchmark adjusted quarterly per Finance Act 2026. Carbon prices sourced from ICAP Carbon Action (2025-Q4). Sectors: iron, steel, cement, aluminium, fertiliser, hydrogen. Voluntary carbon credits cannot reduce CBAM liability — Net Zero analysis shown separately for commercial planning only.
Pricing

Clarity in Chaos

Choose the level of CBAM readiness your business needs

Exposure Check
Free

Instant CBAM liability estimate

  • CBAM liability calculator
  • 5 commodity types covered
  • 10+ source countries
  • Carbon Price Relief estimate
  • HMRC guidance links
Most Popular
Readiness Audit
£2,500 one-time

Board-ready compliance report in 48 hours

  • Full supply chain CBAM audit
  • Verified liability quantification
  • CPR documentation (GACI-compliant)
  • 4-step implementation plan
  • 48-hour delivery
Continuous Compliance
£1,250/month

Ongoing CBAM management and reporting

  • Monthly liability monitoring
  • Annual HMRC return preparation
  • 6-year record retention
  • Carbon price alerts
  • GACI verification coordination
  • Priority support
FAQ

Common questions

Legal Documentation

Privacy Policy

How we collect, use and protect your personal data

Effective date: 9 April 2026 · Version 1.0 · Archimedes Lever Ltd (Co. 16859549)

This Privacy Policy applies to cbamproof.co.uk, operated by Archimedes Lever Ltd (trading as CBAM Proof). For privacy enquiries contact legal@cbamproof.co.uk.

1.1Who we are

Archimedes Lever Ltd (trading as CBAM Proof) is the data controller for personal data collected through cbamproof.co.uk. Registered in England and Wales, company number 16859549. Registered office: 71-75 Shelton Street, Covent Garden, London WC2H 9JQ.

1.2What data we collect

Data you provide directly

  • Full name, job title, and company name
  • Business email address
  • EORI number and VAT registration number
  • Import data: commodity type, volume, country of origin, place of origin
  • Emissions data: emission factor basis, precursor details
  • Declaration confirmation and timestamp

Data generated automatically

  • CBAM liability calculations, Carbon Price Relief deductions, and emissions intensity figures
  • Report ID, report URL, and report access timestamps
  • Monitoring period and basis (import year or production year)
  • IP address and browser type (server logs, retained 90 days)

1.3Why we process your data and our lawful basis

PurposeLawful basis (UK GDPR)
Generate your CBAM liability estimate and CPR calculationContract performance (Art. 6(1)(b))
Deliver your personalised video briefing and compliance reportContract performance (Art. 6(1)(b))
Retain CBAM compliance records for the statutory 6-year period (Reg. 16)Legal obligation (Art. 6(1)(c))
Send follow-up communications about your CBAM readinessLegitimate interests (Art. 6(1)(f))
Improve the platform and fix errorsLegitimate interests (Art. 6(1)(f))

1.4Who we share your data with

We use the following third-party processors, all bound by data processing agreements:

  • Supabase Inc. — cloud database (EU region servers)
  • Anthropic PBC — AI model (Claude) for personalised video script generation
  • HeyGen Inc. — AI video generation platform
  • n8n GmbH — workflow automation
  • SendGrid / Postmark — transactional email delivery

We do not sell your personal data. We do not share your data with HMRC unless required by law.

1.5How long we keep your data

  • Compliance report data: 6 years from report date (Reg. 16, CBAM Regulations 2026)
  • Public report URL: 14 days from generation (data retained; URL expires)
  • Marketing communications data: until you unsubscribe or request deletion
  • Server logs: 90 days

1.6Your rights under UK GDPR

  • Access — request a copy of the personal data we hold
  • Rectification — ask us to correct inaccurate data
  • Erasure — request deletion (subject to Reg. 16 retention obligations)
  • Restriction — ask us to restrict processing during a complaint
  • Portability — receive your data in a machine-readable format
  • Object — object to processing based on legitimate interests
  • Withdraw consent — where processing is consent-based

Contact: legal@cbamproof.co.uk. We respond within one calendar month. You may also complain to the ICO at ico.org.uk.

1.7Cookies

CBAM Proof uses only strictly necessary cookies. We do not use advertising, analytics, or third-party tracking cookies. See our for full details.

1.8Changes to this policy

Material changes will be notified to registered users by email. Current version always available at cbamproof.co.uk/privacy. Effective from 9 April 2026.

Legal Documentation

UK GDPR Data Processing Notice

Supplementary notice for business users — Article 13 / 14 compliance

Effective date: 9 April 2026 · Version 1.0 · Archimedes Lever Ltd (Co. 16859549)

This notice supplements our Privacy Policy with the specific information required by Articles 13 and 14 of the UK GDPR, as incorporated into UK law by the Data Protection Act 2018.

2.1Data controller details

Controller nameArchimedes Lever Ltd
Trading nameCBAM Proof
Company number16859549
Registered address71-75 Shelton Street, Covent Garden, London WC2H 9JQ
Contact emaillegal@cbamproof.co.uk
ICO registrationPending — application submitted

2.2Categories of personal data processed

  • Identity data: name, job title
  • Contact data: business email address
  • Business data: company name, EORI number, VAT number
  • Commercial data: import volumes, commodity types, country of origin
  • Technical compliance data: emissions intensity values, CPR calculations, monitoring period records
  • Behavioural data: platform usage, report access timestamps

2.3Special category data

CBAM Proof does not intentionally collect special category data (Article 9 UK GDPR). Please do not submit any such data.

2.4International transfers

  • Anthropic PBC (USA) — UK International Data Transfer Agreement (IDTA) in place
  • HeyGen Inc. (USA) — UK IDTA in place
  • Supabase Inc. (USA / EU hosting) — EU region hosting; Standard Contractual Clauses apply

2.5Automated decision-making

CBAM Proof uses automated calculation to generate CBAM liability estimates following the statutory methodology in Regulation 5 of the CBAM Regulations 2026. These are informational estimates only — not binding HMRC determinations.

2.6Data minimisation

EORI and VAT numbers are collected solely for importer identification per Regulation 2 of the CBAM Administrative Provisions Regulations 2026. Identity data is required only for the paid Readiness Audit — the free calculator may be used anonymously.

Legal Documentation

Terms & Conditions

The legal terms governing your use of CBAM Proof

Effective date: 9 April 2026 · Version 1.0 · Archimedes Lever Ltd (Co. 16859549)

Important — please read carefully. By accessing cbamproof.co.uk, submitting data, or purchasing any service, you agree to these Terms.

3.1Definitions

  • "We / Us / Our" — Archimedes Lever Ltd (trading as CBAM Proof), Co. 16859549
  • "Platform" — cbamproof.co.uk and all associated tools, calculators, reports and services
  • "Calculator" — the free CBAM liability estimation tool
  • "Readiness Audit" — the paid compliance assessment service (£2,500 + VAT)
  • "Retainer" — the ongoing monthly compliance support service (£1,250 + VAT per month)
  • "CBAM" — the UK Carbon Border Adjustment Mechanism introduced by the Finance Act 2026

3.2The free calculator — scope and limitations

Critical disclaimer — estimates only. The calculator generates estimates based on HMRC default emission factors and publicly available carbon pricing data. These do not constitute your actual CBAM liability, which is determined by HMRC. We do not accept liability for financial decisions made in reliance on calculator outputs.
  • Uses HMRC default emission factors where facility-specific verified data is not provided
  • Carbon prices updated quarterly and may not reflect real-time market prices
  • Emissions intensity displayed to five decimal places per Regulation 5(1) Step 7
  • Does not constitute legal advice, tax advice, or a CBAM return

3.3Paid services

Readiness Audit (£2,500 + VAT)

  • Delivered within 48 hours of receipt of all required information
  • Includes: supply chain emissions analysis, liability quantification, precursor chain mapping, recommended next steps
  • Does not include CBAM return preparation or legal representation
  • Non-refundable once audit has commenced

Monthly Retainer (£1,250 + VAT per month)

  • Minimum 3-month initial term; monthly rolling thereafter with 30 days written notice to cancel
  • Includes: ongoing liability monitoring, carbon price updates, regulatory change alerts, quarterly review call, and one structured return preparation session per year ahead of the 31 May filing deadline
  • Does not include legal advice, tax advice, or HMRC representation — submission to HMRC remains your responsibility
  • Invoiced monthly in advance — pricing adjustable with 60 days notice

3.4Regulatory compliance disclaimer

CBAM Proof is a compliance preparation and monitoring tool — not a tax adviser, legal adviser, or HMRC-authorised agent. Verification of emissions data must be performed by an independent verifier accredited by a GACI member body (Regulation 12). CBAM Proof prepares documentation — we do not replace the statutory independent verification requirement.

3.5Intellectual property

  • All content, calculations, software, reports and methodologies are owned by Archimedes Lever Ltd
  • Your compliance data and import information remain your property
  • Reports may be used for internal compliance purposes only — not resold or redistributed

3.6Limitation of liability

  • We exclude all liability for indirect, consequential, or speculative losses
  • Total liability shall not exceed fees paid in the 12 months preceding the claim
  • We do not exclude liability for death, personal injury caused by negligence, or fraud
  • We are not liable for HMRC penalties or regulatory consequences arising from your CBAM compliance

3.7Acceptable use

  • Do not submit false or misleading data
  • Do not attempt to reverse-engineer or copy the Platform's calculation methodology
  • Do not use the Platform for any unlawful purpose

3.8Governing law

These Terms are governed by the laws of England and Wales. Any dispute shall be subject to the exclusive jurisdiction of the courts of England and Wales.

3.9Contact

CompanyArchimedes Lever Ltd (trading as CBAM Proof)
Address71-75 Shelton Street, Covent Garden, London WC2H 9JQ
Emaillegal@cbamproof.co.uk
Company No.16859549
Legal Documentation

Cookie Policy

How CBAM Proof uses cookies on cbamproof.co.uk

Effective date: 9 April 2026 · Version 1.0 · Archimedes Lever Ltd (Co. 16859549)

CBAM Proof uses only strictly necessary cookies. We do not use advertising, analytics, or third-party tracking cookies. No consent banner is required under UK PECR.

4.1What cookies are

Cookies are small text files placed on your device when you visit a website, allowing the site to remember your session while you use it.

4.2Cookies we use

CookiePurposeDuration
Session cookieMaintains your calculator session so data is not lost between pagesSession (deleted when browser closes)
CSRF tokenSecurity token preventing cross-site request forgery on form submissionsSession

4.3Cookies we do not use

  • Analytics cookies (e.g. Google Analytics, Hotjar)
  • Advertising or retargeting cookies
  • Social media tracking pixels
  • Third-party profiling cookies of any kind

4.4Your choices

Because we use only strictly necessary cookies, disabling them may prevent the platform from functioning. You are not required to consent — they are essential to the service.

4.5Further information

Contact legal@cbamproof.co.uk for questions about cookie usage. For general guidance visit the ICO's cookie guidance ↗. Effective from 9 April 2026.