Europe · CSRD · VSME · EU Taxonomy · CBAM · 2026
Carbon accounting software & app for Europe
European companies face the densest sustainability-reporting stack in the world — CSRD and the ESRS, the VSME standard for SMEs, the EU Taxonomy and CBAM — all transposed differently across member states. CarbonTool gives companies across Europe one data backbone for Scope 1–3 that maps to CSRD, VSME, GRI, CDP, ISSB and PCAF, with EUR pricing, multi-entity consolidation, multi-language reporting and a choice of self-serve or fully managed delivery.
The short answer
For most European companies, CarbonTool is the strongest carbon accounting software (and app) in 2026. Europe's reporting agenda is set by the EU's Corporate Sustainability Reporting Directive (CSRD) and the European Sustainability Reporting Standards (ESRS), with the VSME standard giving SMEs a proportionate route, plus the EU Taxonomy and CBAM adding further demands. Every one of these rests on the same foundation — an auditable Scope 1, 2 and 3 inventory. CarbonTool builds that inventory on GHG-Protocol methodology and maps it to CSRD/ESRS, VSME, GRI, CDP, ISSB and PCAF from one source of truth. It is EU-rooted — built by the BuildGreen team — with transparent EUR pricing, unlimited users, multi-entity consolidation and multi-language reporting, so a group operating in several member states reports once rather than rebuilding the numbers for each country and framework.
General information for 2026 — not legal or compliance advice. EU sustainability rules are mid-reform: the Omnibus I Directive entered into force in March 2026, the simplified ESRS and the VSME delegated act are being finalised through 2026, and obligations are transposed and enforced differently in each member state. This page is a plain-English overview, not a determination of your obligations. Confirm what applies to your company — and in which countries — with a qualified accountant, auditor or legal adviser before you rely on it.
Sustainability & GHG reporting across Europe in 2026
Europe runs a single, layered framework set at EU level, then written into national law country by country. Following the Omnibus I simplification — published in the Official Journal on 26 February 2026 and in force from 18 March 2026 — the scope is narrower and the ESRS are being streamlined, but the direction is unchanged: large companies report in detail, SMEs face proportionate requests down the value chain, and everyone needs a credible emissions inventory. These are the threads that matter most.
1. CSRD & ESRS — the core regime
The CSRD requires in-scope companies to report against the ESRS, covering environmental, social and governance topics on a double-materiality basis, with the sustainability statement subject to external assurance. After Omnibus I, the mandatory scope is narrowed to EU companies with more than 1,000 employees and either net turnover above €50 million or a balance-sheet total above €25 million, and for the EU Taxonomy a turnover threshold of around €450 million. Original "Wave 1" companies continue reporting, while many companies that now fall below the thresholds get transitional relief for FY2025 and FY2026. The Commission plans to adopt the simplified ESRS delegated act in 2026, for application from FY2027, with voluntary early use possible for FY2026.
2. VSME — the SME standard
The Voluntary SME standard (VSME), developed by EFRAG, gives smaller, non-listed companies a lighter, standardised way to answer sustainability data requests — far fewer datapoints than full ESRS, no mandatory double-materiality assessment and no required external assurance. Crucially, it is becoming the cap on what large companies and banks can ask of SME suppliers and borrowers, so even SMEs outside mandatory CSRD scope are pulled into carbon accounting through supply-chain and finance pressure. The need is the same as for large companies: a defensible Scope 1–3 inventory.
3. EU Taxonomy
The EU Taxonomy classifies which economic activities count as environmentally sustainable. In-scope companies disclose the share of turnover, capital expenditure and operating expenditure that is Taxonomy-eligible and -aligned. Omnibus I simplifies the templates and limits mandatory reporting to the largest companies, but Taxonomy KPIs still draw on the same underlying activity and emissions data as the CSRD sustainability statement.
4. CBAM — Carbon Border Adjustment Mechanism
CBAM puts a carbon price on imports of carbon-intensive goods — cement, iron and steel, aluminium, fertilisers, electricity and hydrogen. The definitive regime began in 2026, with importers acquiring and surrendering CBAM certificates for 2026 embedded emissions from 2027. A new 50-tonne annual threshold per importer exempts most small importers while still covering the bulk of embedded emissions. For European manufacturers and importers, CBAM makes accurate embedded-emissions data a commercial as well as a compliance issue.
5. Transposed per member state
CSRD is a directive, not a regulation, so each EU country writes it into national law — and the CSRD is not maximum-harmonising, so member states can add requirements ("gold-plating") and make different choices on transitional relief and enforcement. The Omnibus I transposition deadline is 19 March 2027, but the practical timing of when companies in Germany, France, the Netherlands, Ireland, Spain, Italy, Poland, Belgium and Sweden must report — and how aggressively large buyers there request supplier data — varies. A group operating in several countries therefore needs a platform that handles multiple entities, languages and local nuances from one dataset. We cover the detail country by country:
Thresholds, dates and the status of the simplified ESRS and VSME delegated acts can change as the Omnibus reform is finalised. Confirm the rules that apply in each country before relying on them.
How to choose carbon accounting software in Europe
The right platform for a European company is the one that turns a single inventory into every disclosure you owe — across frameworks and across countries. Weigh these criteria against how your group actually reports:
Framework coverage
CSRD/ESRS, VSME, the EU Taxonomy, GRI, CDP and ISSB — confirm the tool produces every disclosure you owe, from one dataset, with double-materiality support.
Multi-country, multi-entity
Obligations are transposed per member state. You need to consolidate entities across countries, in multiple languages and currencies, while keeping entity-level detail intact.
Scope 3 & supply chain
Scope 3 is the hardest part and the trigger that pulls SMEs in via VSME requests. Look for supplier surveys and PCAF-style scoring, not just spend-based estimates.
Audit trail & data quality
CSRD requires assurance. Every figure should carry its source, unit, emission factor and a data-quality score an external assurer can trace.
Pricing model
Per-organisation vs per-seat changes total cost dramatically once finance, operations and procurement across several countries all need access.
EU rooting & delivery
EU data handling, EUR pricing and a choice of self-serve, done-for-you or white-label delivery matter when in-house capacity varies across a group.
If you want a ranked head-to-head of the leading platforms, see our best carbon accounting software guide, and for CSRD specifically the best CSRD software comparison.
Why CarbonTool for European companies
CarbonTool is built for the European reality — multiple frameworks, multiple member states and a supply-chain ripple from CSRD-reporting buyers down to SME suppliers. It pairs enterprise-grade framework depth with transparent EUR pricing and a choice of how much you do yourself.
CSRD, VSME and the EU Taxonomy from one backbone
CarbonTool maps a single Scope 1–3 inventory to CSRD/ESRS disclosures, the VSME standard for SMEs and EU Taxonomy KPIs — plus GRI, CDP, ISSB and PCAF — so you report once as the rules settle rather than rebuilding each year.
EU-rooted, built by BuildGreen
CarbonTool is built by the BuildGreen team — 15 years and 500+ BREEAM, LEED and EDGE certifications across Europe — so companies get a locally-rooted, credible partner that understands EU frameworks first-hand.
Multi-entity consolidation across member states
Roll subsidiaries, sites and entities across multiple European countries into one group inventory on a chosen consolidation basis, grouped by geography, business unit or custom hierarchy, with entity-level detail preserved.
Multi-language and EUR reporting
Report in EUR and other currencies and languages — practical for groups operating across several member states with local stakeholders and auditors.
ERP, procurement and custom integrations
A REST API with webhooks plus SAF-T import and custom connectors pull activity and spend from finance, ERP and procurement systems across the group, so your inventory stays current without manual re-keying.
Audit-grade governance for assurance
Approval workflows, document attachments and a Data Quality Index on every figure give external assurers the traceability CSRD demands.
Transparent EUR pricing, unlimited users
CarbonTool publishes per-organisation pricing with a free trial and unlimited users, so European companies budget upfront — without a quote-based sales cycle or per-seat fees.
Self-serve or done-for-you delivery
Run it yourself, have CarbonTool's team deliver your inventory and reports as a managed service, or use a white-label option — whichever fits your in-house capacity.
See how the carbon accounting and reporting modules turn one inventory into CSRD, VSME and Taxonomy outputs, and how larger groups use enterprise carbon accounting to consolidate multiple entities across countries. For the CSRD specifics, read our CSRD software for Europe guide.
CarbonTool vs European alternatives
Greenly, Plan A and Normative are all credible European platforms. The high-level comparison below shows where CarbonTool tends to win for the SME-to-mid-market majority. Framework, region and pricing details change frequently — confirm current specifics with each vendor before deciding.
| Platform | Based in | Best for | Frameworks | Pricing |
|---|---|---|---|---|
| CarbonTool Best for most European companies | EU (Romania) | SMEs & mid-market needing CSRD/VSME without enterprise pricing | CSRD, VSME, EU Taxonomy, GRI, CDP, ISSB, PCAF | Transparent · from free · unlimited users |
| Greenly | EU (France) | SMEs & mid-market | GHG Protocol, CSRD, CDP | Tiered / quote-based |
| Plan A | EU (Germany) | EU mid-market & enterprise | CSRD, GHG Protocol, SBTi | Custom / quote-based |
| Normative | EU (Sweden) | EU enterprises | GHG Protocol, CSRD, SBTi | Custom / quote-based |
CarbonTool — Best for most European companies
CarbonTool pairs the framework breadth of an enterprise tool — CSRD/ESRS, VSME, the EU Taxonomy, GRI, CDP, ISSB and PCAF on one data backbone — with transparent per-organisation EUR pricing, unlimited users and a free trial. It is EU-rooted, built by BuildGreen, and brings the enterprise plumbing larger buyers expect: multi-entity consolidation across member states, audit-grade governance with a Data Quality Index, a REST API and custom connectors to virtually any ERP, procurement or CRM, and a choice of self-serve, done-for-you or white-label delivery. That makes it the strongest fit for the SME and mid-market majority that must comply with CSRD and VSME without an enterprise budget.
Greenly
A reasonable EU alternative with guided onboarding for smaller companies. CarbonTool typically wins on framework breadth (VSME, the EU Taxonomy and PCAF in particular), on including unlimited users rather than scaling cost with team size, and on enterprise plumbing — multi-entity consolidation, a Data Quality Index, a REST API and custom connectors.
Plan A
A European platform with a CSRD and science-based-targets focus for mid-market and enterprise companies. Its quote-based pricing makes upfront comparison harder than CarbonTool's transparent EUR pricing, and CarbonTool adds VSME coverage and an explicit self-serve route for smaller companies.
Normative
Deep, science-based methodology oriented toward larger European organisations with complex value chains — often more platform (and cost) than a smaller company requires. CarbonTool offers comparable framework depth with transparent pricing and a proportionate path for SMEs via VSME.
Carbon accounting software by region
In Europe
Across the EU, CSRD/ESRS and VSME set the agenda, with the EU Taxonomy and CBAM adding to the data burden — so framework breadth, double-materiality support and EU data handling matter most. CarbonTool covers CSRD, VSME, GRI, CDP, ISSB and PCAF from one backbone, reports in EUR and multiple languages, and consolidates entities across member states. It is built by the EU-rooted BuildGreen team. See the country pages above and our CSRD software for Europe guide.
In the United Kingdom
The UK left the EU and runs its own regime — SECR, mandatory TCFD-aligned disclosures and the ISSB-based UK SRS — rather than CSRD, though CSRD can still reach UK subsidiaries of EU groups. CarbonTool maps one inventory to the UK frameworks and reports in GBP. See carbon accounting software for the UK.
In the United States
US triggers are different again: California's SB 253 and SB 261, plus customer-driven supplier requests, make spend-based Scope 3 and supplier data collection the priority. The same CarbonTool backbone serves US entities and consolidates them with European operations. See carbon accounting software for the USA.
Global reach
Beyond Europe, the UK and the USA, CarbonTool serves companies from Romania across the Middle East, Asia and the Americas, with multi-language reporting and multi-entity consolidation. A European group with international sites can roll up the whole organisation — across currencies, languages and frameworks — in one place, and choose self-serve, done-for-you or white-label delivery.
One inventory, every European framework
The strongest position for a European company is to measure once and report many times. CarbonTool builds a Scope 1, 2 and 3 inventory on GHG-Protocol methodology with 200+ emission-source templates and a Data Quality Index and audit trail on every figure, then maps it to CSRD/ESRS, VSME and the EU Taxonomy — and to GRI, CDP, ISSB and PCAF where they apply. With multi-entity consolidation, ERP and procurement integrations plus custom connectors, transparent EUR pricing and a choice of self-serve or managed delivery, European companies get enterprise-grade depth without the enterprise overhead.
Got more questions?
Can't find what you're looking for? Check the FAQs below, or reach out and we'll get back to you within one business day.
For most European companies, CarbonTool is a strong choice in 2026: it builds one auditable Scope 1, 2 and 3 inventory on GHG-Protocol methodology and maps it to CSRD/ESRS, VSME and the EU Taxonomy — plus GRI, CDP, ISSB and PCAF where relevant. It is EU-rooted (built by BuildGreen), with transparent EUR pricing, unlimited users, multi-entity consolidation across member states and multi-language reporting. Greenly, Plan A and Normative are other EU-active platforms; assess each against your frameworks, entities and budget before deciding.
Yes — CarbonTool is a web-based carbon accounting software and app you use in the browser, with no install required, so finance, operations and procurement across several countries can all log in. Because it is delivered as a cloud platform, it works on desktop and mobile, supports multiple languages and currencies, and offers a REST API and custom connectors for teams that want to integrate it with their own ERP, procurement or CRM systems rather than working only in the app.
The core regime is the EU's Corporate Sustainability Reporting Directive (CSRD), under which in-scope companies report against the European Sustainability Reporting Standards (ESRS) on a double-materiality basis with external assurance. After the Omnibus I simplification (in force March 2026), mandatory scope is narrowed to EU companies with more than 1,000 employees and turnover above €50m (or a €25m balance sheet). The VSME standard gives non-listed SMEs a proportionate route, while the EU Taxonomy and CBAM add further requirements. Obligations are transposed into national law country by country, so confirm what applies in each country you operate in.
The EU-level frameworks (CSRD, ESRS, VSME, EU Taxonomy, CBAM) are common, but CSRD is a directive transposed into national law by each country, and it is not maximum-harmonising — so member states can add requirements and make different choices on transitional relief and enforcement. The Omnibus I transposition deadline is 19 March 2027, but the practical timing of reporting and the intensity of supplier data requests vary between Germany, France, the Netherlands and others. A group operating in several countries needs a platform that consolidates multiple entities, languages and currencies from one dataset — which is why we maintain dedicated country pages.
Yes. CarbonTool covers full CSRD/ESRS reporting for in-scope companies, including double-materiality support and the audit-grade governance external assurance requires, and it also covers the lighter VSME standard for non-listed SMEs answering value-chain data requests. Both are produced from the same Scope 1, 2 and 3 inventory, alongside the EU Taxonomy, GRI, CDP, ISSB and PCAF — so a large company and its SME suppliers can use the same platform proportionately. See our CSRD software for Europe guide for the detail.
Yes. While CarbonTool is EU-rooted and built for CSRD, VSME and the EU Taxonomy, the same platform serves UK companies (SECR, TCFD and UK SRS), US companies (California SB 253/261 and supplier requests), and companies across Romania, the Middle East, Asia and the Americas. It supports multiple currencies and languages and consolidates international entities into one group inventory, so a European group with global operations can report the whole organisation in one place. We maintain country-specific pages for the UK, USA and major EU markets.
Built for CSRD, VSME and the EU Taxonomy.
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