carbonaccounting.ai
01 Carbon accounting software

Early access · The demo below is live

Carbon accounting software that starts from the invoices you already have.

Paste the spend data you already collect. Every line comes back classified to a GHG Protocol scope and Scope 3 category, with an audit trail from each number to its source.

Early access, launching soon

Up to 40 lines. Processed to classify, never stored, never used to train anything.

# Vendor Scope kgCO2e
Posting lines to the ledger…

Totals by scope

lines · factors ·

Scope 1 ·

Scope 2 ·

Scope 3 ·

Total CO2e

Reduction planner · your run

Computed from your ledger. No benchmarks, no averages.

against this baseline

5%50%

= tCO2e to remove from a tCO2e baseline

Smallest set of sources that covers it

Drafted basis-of-preparation note

See planned pricing

Screening estimate. Spend-based method with model-selected emission factors. Suitable for finding hotspots and scoping a real inventory. Not audit-grade and not a substitute for a verified GHG inventory.

02 The problem

Why this exists

The first mandatory reporting year finds the same three problems

CSRD, CBAM, California SB 253 or one big customer's questionnaire: whichever lands first, the discovery is identical.

01

Nobody owns the number

Emissions data lives in AP invoices, fuel cards, utility bills, travel bookings and ERP exports. No single person can produce a Scope 3 figure, because no single system holds one.

02

Scope 3 is most of the footprint

Scope 3 emissions are typically 70 to 90% of the total and all of the pain: fifteen categories, most of which must be estimated from spend before anyone can justify collecting activity data.

03

The default fix goes stale

A consulting engagement produces a static spreadsheet and a PDF that is out of date the quarter it lands, with no trail from a reported tonne back to the invoice that produced it.

The bottleneck is not the arithmetic. It is classification and evidence: which line is Scope 1, which Scope 3 category it belongs to, which factor applies, and how you prove that choice to an auditor eighteen months later.

03 What you get

Outcomes, not dashboards

A classified, evidence-linked emissions ledger

Start from data you already have

The accounts-payable export your ERP produces today is enough for a complete first screening. AI drafts a GHG Protocol classification for every line, with its confidence stated, and a human reviews instead of typing. That pass is exactly what the demo above just ran.

15

Scope 3 categories, handled

Every value-chain line lands in one of the 15 categories without a data team.

Every number has a source

A reported tonne resolves to the invoice line, the factor and the method behind it. The audit trail exists before the auditor does.

A disclosure note, drafted

The basis-of-preparation note nobody wants to write, drafted in CSRD ESRS E1 register alongside the numbers it describes.

Honest about precision

Spend-based screening is labelled spend-based screening. Confidence is per line, and the upgrade path to activity data is part of the output, not an apology.

04 How it works

Accounting, not dashboards

Import. Classify. Close the ledger.

The workflow is deliberately shaped like month-end close, because that is the discipline a defensible number needs.

Step 01

Import what exists

Drop in the AP or ERP export, utility bills and fuel-card statements. No questionnaires, no retyping. CSV in, ledger out.

Step 02

AI classifies, you review

Every line gets a scope, a Scope 3 category, a factor and a stated confidence. You review the low-confidence tail; the decision stays on the record.

Step 03

Export the closing pack

Totals by scope and category, the evidence-linked ledger, and the drafted basis-of-preparation note, ready for a disclosure draft or a customer request.

The full GHG accounting method, step by step

05 Pricing

Published, unlike anyone else's

Planned pricing, on the page

Every incumbent in this category sells behind a sales call. Our planned pricing is public, and nothing is charged during early access.

Ledger

$390/mo

First reporting year, one entity

Scope 1 + 2 + spend-based Scope 3 screening, evidence links, 3 seats.

Most popular

Compliance

$1,290/mo

In scope for CSRD, CBAM or SB 253

Activity factors, supplier requests, E1/CBAM/ISSB packs, audit log, 10 seats.

Assurance

$3,900/mo

Facing third-party assurance

Multi-entity consolidation, method history, assurance workspace, unlimited seats.

Enterprise

Custom

Group, multi-entity, regulated

SSO/SAML + SCIM, approval workflows, 99.9% SLA, EU residency, named engineer.

Planned pricing at launch. Nothing is charged today. Requesting access adds you to the early-access list; there is no card field, no checkout, and no obligation. Yearly billing is planned at roughly 20% off. Full tier detail on the pricing page.

06 For the decision maker

For the CFO signing off on the number

Three questions decide whether the number you sign is defensible

01

Where did this tonne come from?

Every posting links to its source line. The answer to an auditor's sample is a click, not an archaeology project across old spreadsheets.

02

Who approved this factor?

Factor choices and overrides are recorded events with owners. Maker-checker approval on posting changes is designed in, not retrofitted.

03

Can you reproduce last year's number after the method changed?

Methods and factor sets are versioned, and restatements are explicit events with reasons. The trend line survives methodology improvements.

Sustainability disclosure is moving into the regime financial disclosure already lives in: assured, restated when wrong, and signed by someone. The whole argument, including the ROI conversation without invented numbers, is on enterprise carbon accounting.

07 Objections

Asked before giving us an email

The questions that decide the signup

01 Is this live yet?
No, and we will not pretend otherwise. Carbonaccounting.ai is in early access. The demo above is real and runs today; the full platform is being built. Early access is free to join and nothing is charged.
02 Is the demo's number audit-grade?
No. It is a spend-based screening estimate: right for finding hotspots and scoping a real inventory, not for filing an assured disclosure. The full product adds activity-based factors and the audit trail assurance needs.
03 What standards does it follow?
GHG Protocol Corporate Standard plus the Scope 3 Standard for the boundary and the 15 categories; outputs are structured for CSRD ESRS E1, CBAM and ISSB IFRS S2. More on the carbon accounting standards FAQ.
04 Where does my pasted data go?
It is processed to classify it and returned to you. It is not stored, not sold, and not used to train anything. The paste box is capped and rate-limited.
05 What happens after I give you my email?
You confirm it with a 6-digit code and you are on the early-access list. We email you when your spot opens. If we decide not to build it, we email you that too and delete your address.

See your own footprint classified in about a minute.

Run the live demo on a sample or on your own spend lines. If it earns it, request early access.

Try the demo