CBAM reporting software
that gets you to a return-ready figure
UK CBAM returns require liability calculation, Carbon Price Relief application, and evidence-backed figures — all on a quarterly cadence with one annual filing. Oremly produces a return-ready summary that is always up to date.
Free until 1 January 2027 · £149/month locked until 2029 · No card required
Preparing a CBAM return demands data you may not have until filing time
UK CBAM returns require importers to report embedded emissions for every covered shipment, calculated using either verified supplier data or HMRC default values, with Carbon Price Relief applied where applicable. The first annual return is due by 31 May 2028, covering the 2027 calendar year. Liability accrues quarterly, but filing is annual.
The challenge is timing. Supplier emissions data may arrive months after the relevant imports, and Carbon Price Relief figures often come in different currencies and units. Most importers end up gathering data under deadline pressure, with no way to know their liability position before the filing window opens.
Oremly solves this by maintaining a live, evidence-backed calculation that updates as supplier data arrives. Your return-ready figure is always current — no month-end rush, no data gathering under the wire, no guessing your liability position between filings.
Liability, relief, and net figure in HMRC field order
Oremly's return-ready summary is organised in the same field order as HMRC's CBAM service. Each line shows the CN code, net weight, country of origin, embedded emissions (tCO₂e), the CBAM rate applied, Carbon Price Relief claimed, and net liability.
You transcribe the figures into the government portal. No reformatting, no re-calculating, no re-gathering evidence. The summary is always current from your live data.


Know your liability position every quarter, not just at year end
CBAM liability accrues over four quarterly periods within each calendar year. Oremly tracks your running liability per quarter automatically — showing which periods have verified supplier data and which are still using default values.
No waiting until the annual deadline to discover your position. The quarterly view tells you where you stand, where supplier data is still missing, and what the cost of defaulting would be.
From liability calculation to a return-ready figure
Return-ready summary
Every figure laid out in HMRC field order: embedded emissions per shipment, CBAM rate applied, Carbon Price Relief deducted, net liability calculated. Transcribe directly into the government portal with no reformatting.
Quarterly liability tracking
CBAM liability accrues quarterly. Oremly shows your running total per quarter, broken down by sector, so you know your position before the annual return deadline.
Carbon Price Relief auto-calculation
HMRC allows relief for carbon prices already paid in the country of production. Oremly extracts the carbon price from supplier documents and applies the correct relief automatically.
Default value fallback visibility
If supplier data is missing, Oremly applies HMRC default values and flags the resulting cost. You see the impact before you file — not after.
Registration pack compilation
Automated compilation of entity details, import volumes by sector, supplier list, and evidence index. Aligned with HMRC registration requirements. Review and submit.
Multi-format export
Export your return-ready data as CSV, PDF, or structured JSON. Full organisation export in one click for auditor reviews or due diligence requests.
Everything HMRC needs to register you
Oremly automatically compiles your CBAM registration pack — entity details, import volumes by sector, supplier list, and a complete evidence index aligned with HMRC's registration requirements.
You review, you submit. No manual compilation from separate records.

Oremly reporting vs manual return preparation
| Task | Manual | Oremly |
|---|---|---|
| Return-ready summary preparation | 2-4 weeks per filing period: gather data, calculate, cross-check | Minutes: always up to date from your live data |
| Carbon Price Relief calculation | Manual FX conversion and rate lookup per supplier | Auto-extracted from supplier documents and applied |
| Quarterly liability tracking | No systematic tracking between annual returns | Running quarterly totals visible in dashboard |
| Default value cost visibility | Unknown until you prepare the return | Visible months before deadline with side-by-side comparison |
| Registration document pack | Compile manually from separate records | Auto-generated from import ledger and supplier data |
| Evidence chain traceability | Difficult to reconstruct document-to-return line | Traceable from supplier document to return figure |
200x faster than manual return preparation
What takes your team weeks of data gathering and manual calculation takes Oremly minutes. The return-ready summary is always up to date, always backed by evidence, and always organised in the field order you need for HMRC filing.
With Oremly
Minutes
Time to generate a return-ready summary
Without Oremly
2-4 weeks
Manual data gathering and calculation effort
Free until 1 January 2027 · £149/month from 2027
Free founding access until 1 January 2027. No card required. From 1 January 2027, Oremly is £149/month, and founding members keep that price until 1 January 2029. We’ll notify you before billing starts.
Founding Access
£0
until 1 January 2027
- ✓ Full product access
- ✓ £149/month rate locked until 2029
- ✓ No card required
Standard
£149
per month from January 2027
- ✓ All features included
- ✓ Single importing entity
- ✓ Annual plan: £1,609.20/year (10% off)
No feature gating between tiers. Compliance functionality should not be paywalled. Tiers differ by scale and support, not capability.
Frequently asked questions
File your first CBAM return with confidence
Free until 1 January 2027 · £149/month locked until 2029 · No card required
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