UK Carbon Border Adjustment Mechanism

Understand UK CBAM. Build the records behind your answer.

The UK Carbon Border Adjustment Mechanism (CBAM) is a new tax on emissions embodied in certain aluminium, cement, fertiliser, hydrogen, iron and steel goods imported into the UK from 1 January 2027. Carbon Verify helps you check possible exposure, collect the supporting records and prepare a clear handoff for your adviser.

Your business records stay in your browser unless you export them.

A sensible first step

Could UK CBAM apply to your imports?

If your business is responsible for importing aluminium, cement, fertiliser, hydrogen, iron or steel into the UK, it is worth checking. Answer in plain language and see what needs confirming.

Start the free check
The abbreviation, in full

What is the Carbon Border Adjustment Mechanism?

From 1 January 2027, UK CBAM will apply a carbon price to certain goods imported into the UK, based on the emissions from making them. Its purpose is to make the carbon costs of imported and UK-made goods more comparable.

01

It concerns imported goods

The first sectors are aluminium, cement, fertiliser, hydrogen, iron and steel. Not every product in those sectors is automatically covered.

02

The commodity code matters

The 8-digit customs code is used to decide whether a particular product is in scope. A product description alone is not enough.

03

The importer needs a record

The business responsible for the import may need to monitor value, keep prescribed records and—if the threshold is reached—register.

04

You can start with facts

Confirm the importer, collect commodity codes and customs values, then keep questions visible for your broker or adviser.

Read the plain-English introduction
How it works

A working record, not a black-box answer.

Begin with what you know. Keep uncertainty visible. Build the evidence trail your adviser will need.

  1. 01

    Check your position

    Work through who imports the goods, the sectors involved and when the value tests may matter.

  2. 02

    Record each import

    Keep dates, suppliers, origin, value and weight together without hiding unresolved commodity codes.

  3. 03

    Follow the evidence

    Track supplier responses, emissions information and the records that still need attention.

  4. 04

    Hand over cleanly

    Export a dated summary and evidence index for your customs, tax or accounting adviser to review.

One place for the working record

Useful even when somebody else submits the return.

The difficult part is often finding the affected imports, asking suppliers for the right information and keeping the basis for each decision. The record book helps one person hold that task together.

  • Imports by date, product, supplier, origin, value and weight
  • User-supplied commodity codes with an explicit review status
  • 30-day forecast and first-of-month 12-month threshold checks
  • Supplier requests, emissions-data basis and evidence references
  • A dated readiness summary for professional review
Readiness snapshotFictional example
Recorded CBAM goods£38,420towards the current £50,000 threshold
7 records readyvalue, weight and evidence recorded
2 need attentioncommodity code or supplier evidence missing
1 supplier request opennot treated as zero or as a verified result
Designed for the person given the task

You do not need to become a CBAM specialist to start well.

Plain explanations

Key terms are explained where they first appear, with prompts for the information to find next.

Honest uncertainty

Missing evidence stays missing. The app does not turn an unanswered supplier request into a confident figure.

Portable records

Download local backups and adviser-ready exports so the working record is not trapped in the product.

Learn as you go

Short guides for the person who has been handed CBAM.

Eleven practical guides cover scope, commodity codes, the £50,000 threshold, supplier information, missing emissions data, records, emissions choices and deadlines—without assuming customs or carbon expertise.

Guide 01

What is UK CBAM?

Understand what the mechanism is, the goods it may cover, who could be responsible and the dates worth preparing for.

Read the introduction
Guide 02

Which imports should we check?

See what to look for in your commodity codes, import records and responsibility for bringing goods into the UK.

See what to check
Guide 03

What should we ask suppliers for?

Start gathering emissions information and supporting evidence—and keep gaps visible when an answer is not yet available.

Prepare for supplier requests
Explore all 11 UK CBAM guides

General information only—not tax, customs, commodity-classification or legal advice. Library updated 18 September 2026; each guide shows when its information was checked.

Clear boundaries

It organises the task. It does not make the professional decision for you.

Carbon Verify CBAM helps with
  • Indicative scope and threshold checks
  • Import, supplier and evidence records
  • Missing-information prompts
  • Versioned adviser handoff files
It does not provide
  • Commodity-code or customs classification advice
  • Independent emissions verification
  • HMRC registration, filing or payment
  • Tax, customs or legal advice
Start free, subscribe for the record

Check the question before you buy the tool.

The guided scope check is free. Subscribe when you are ready to maintain imports, supplier evidence and adviser handoffs.

Useful first check

Indicative scope check

FreeNo payment details

  • Plain-language UK scope questions
  • Possible sector and threshold prompts
  • A dated indicative outcome
Check possible exposure
Ongoing working record

CBAM Record Book

£49/month + VATor £490/year + VAT · choose in checkout

  • Ongoing import register and dated threshold checks
  • Supplier and emissions-evidence tracking
  • Rules-version references and review prompts
  • Local backups and adviser-ready exports
Choose monthly or annual

Prices exclude VAT; VAT is added at checkout where applicable. One active browser/user licence. Monthly and annual subscriptions renew automatically until cancelled.

Part of Carbon Verify

A separate product for a separate carbon task.

CBAM works on its own. For organisation footprints and Carbon Reduction Plans, Carbon Verify’s CRP tool offers separate project files and editable documents with optional business or adviser branding. SECR has its own annual-reporting workspace. Each product has its own subscription and files; CRP projects are not CBAM or SECR imports.

Start with a clear answer

Find out what your business needs to look at next.

Use the free guided check, or subscribe to keep the full working record.