⚠️ Critical: Starting January 2026, default values for Steel & Aluminium are prohibited.
2027 UK CBAM Edition

Master UK CBAM
Compliance Before 2027.

The only "Audit-Ready" calculator built for the 2027 UK Carbon Border Adjustment Mechanism. Get precise liability estimates for Steel, Aluminium, Cement, Fertilisers, and Hydrogen in seconds.

UK_CBAM_Calculator_v2027.xlsx
Material
CN Code
tCO2e
Liability (£)
Steel
7208.10
2.34
£115.62
Aluminium
7601.10
4.12
£203.57
Cement
2523.21
0.89
£0.00*

* Zero-floor protection active

HMRC

Audit-Ready Report

The 3 Critical Pillars

Built specifically for UK CBAM 2027 compliance. Unlike generic spreadsheets, our tool handles the unique regulatory requirements of the UK Carbon Border Adjustment Mechanism.

Zero-Floor Protection

Avoid the 'Refund Trap.' Our tool enforces the £0 liability floor, ensuring clean imports don't lead to incorrect tax reporting or misleading financial forecasts.

Prevents negative liability calculations

Full 5-Sector Scope

Beyond just Steel. Includes verified emission factors for the entire 2027 mandate: Cement, Fertilisers, Hydrogen, and Aluminium, with accurate CN code mapping.

All 2027 mandated sectors included

True Carbon Relief

Deduct foreign carbon prices accurately. We calculate relief per tonne of CO₂ (not material weight), aligning with HMRC's verified declaration standards.

HMRC-compliant calculation method
One-Click Audit Report

Generate Audit-Ready Reports

Generate a formatted report for your compliance officer or HMRC auditor. Includes confidence grades (A-D) for all emission factors and source citations from Worldsteel, IAI, and the IEA.

Confidence Grading System

Each emission factor graded A-D based on data quality and verification status

Source Citations

Every factor linked to authoritative sources: Worldsteel, IAI, IEA databases

HMRC-Ready Format

Structured reports designed for UK customs and compliance reviews

UK_CBAM_Audit_Report_Q1_2027.pdf
Generated: Today

Total Liability

£12,847.33

Confidence Score

A-
Steel Products Grade A
Source: Worldsteel 2024
Aluminium Products Grade A
Source: IAI (International Aluminium Institute)
Cement & Fertilisers Grade B+
Source: IEA (International Energy Agency)
Cryptographically signed • HMRC-compliant format • Ready for submission

Why This vs. DIY?

Standard spreadsheets lack UK CBAM expertise. See what you're missing.

Feature
DIY Spreadsheet
UK CBAM Calculator
Zero-Floor Protection
5-Sector Coverage (All 2027 Mandates)
Partial
Verified CN Code Mapping
Carbon Relief (per tCO2, not weight)
Often wrong
Audit-Ready Reports (A-D Grading)
Source Citations (Worldsteel, IAI, IEA)
UK Carbon Price Updates (£49.41/tCO2)
Manual
HMRC Compliance Validation
Time to Calculate 100+ Products
4-6 hours
30 seconds

Based on typical user testing with 100 product lines across all 5 CBAM sectors

Early Bird Pricing

The Early Bird Pass

One-time payment. Lifetime updates. Zero subscription fees.

2027 UK CBAM Edition

UK CBAM Calculator

Complete compliance toolkit for the 2027 UK Carbon Border Adjustment Mechanism. All 5 sectors, audit-ready reports, lifetime updates.

£ 399 one-time
Lifetime License
  • 2027 5-Sector Database
  • Steel, Aluminium, Cement, Fertilisers, Hydrogen
  • Lifetime Updates (UK Carbon Price changes)
  • Audit Report Generator (A-D Grading)
  • Zero-Floor Protection
  • Verified CN Code Mapping
  • HMRC-Compliant Calculations
Get Early Bird Access

Secure payment via LemonSqueezy • Instant download

Lifetime license
Free updates forever
30-day money back
Built by technical founders for technical importers. | Updated for the 2026/27 UK Carbon Price Forecast (£49.41/tCO₂).