CarbonTool
CarbonTool: Broad Scope 1–3 accounting and reporting from €2,000 per organization annually. Ranked #3 of 30 in Carbon Accounting Software by our editors (9.2/10); pricing: 30-day trial; best for organizations needing affordable audit-ready accounting.
At a glance
- Editor score9.2 / 10
- Pricing30-day trial
- Best forOrganizations needing affordable audit-ready accounting
- Free planNo
- Paid from€2,000/yr
- Scope coverageScope 1-3
- Facts checked22 Sep 2026
Where it wins
- Scope 1–3 accounting with 200+ emissions-source templates
- Supplier surveys, consolidation and major reporting frameworks
- Audit trail, REST API, OAuth 2.0, webhooks and bulk import
Where it doesn't
- No time-unlimited free plan
- Core supports single-entity measurement only
- CSRD reporting starts with the €7,500 Enterprise plan
Our verdict on CarbonTool
CarbonTool is a web-based carbon accounting platform for organizations measuring, reporting and reducing greenhouse-gas emissions. It covers GHG Protocol Scope 1, 2 and 3 inventories, with manual entry, spreadsheet import, AI-assisted uploads, SAF-T import and API connections. The product is suited to companies moving from initial measurement to supplier data collection, consolidated reporting and decarbonisation planning.
Pricing is structured around annual organizational plans. Starter provides 30 days of full access, core Scope 1 and 2 measurement, and no credit card requirement, but it is trial access rather than a continuing free plan. Core costs €2,000 per organization per year and adds single-entity measurement, full platform access and 2 hours of monthly support. Pro costs €5,000 annually and adds multi-unit consolidation, VSME reporting and 4 hours of monthly support. Enterprise costs €7,500 annually, adding multi-unit support for large organizations, CSRD reporting, 6 hours of monthly support and priority support. The platform's strongest fit is its combination of calculation, collection and reporting workflows: built-in DEFRA, EPA, ecoinvent and ADEME emissions factors sit alongside supplier surveys, primary supplier-data collection, audit traceability and reduction planning.
CarbonTool also offers a wide integration and platform surface. It is available through the web and API, with integrations for SAP, Oracle NetSuite, Microsoft Dynamics 365, QuickBooks, SAP Ariba, Coupa, Salesforce, Sage and Workday. Its REST API supports OAuth 2.0, webhooks and bulk import, giving larger data teams options beyond manual entry. Organizations needing Scope 1–3 coverage, supplier engagement and audit traceability can choose CarbonTool with Core or above. Smaller teams wanting a permanent free plan should look elsewhere, while organizations needing multi-unit consolidation or CSRD reporting must move to the higher-priced tiers.
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CarbonTool pricing
All 4 CarbonTool plans and prices →
CarbonTool fact sheet
| Free plan | No |
|---|---|
| Paid from | €2,000/yr |
| Scope coverage | Scope 1-3 |
| Data collection | Both |
| Emissions factors | Both |
| Supplier engagement | Yes |
| Audit trail | Yes |
| API access | Yes |
| Free trial | 30 days · no card needed |
| Deployment | Cloud |
| Platforms | Web |
| Support | Email, Live chat |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 9 integrations: SAP, Oracle NetSuite, Microsoft Dynamics 365, QuickBooks, SAP Ariba, Coupa … |
| Pricing | 30-day trial (source) |
| Website | carbontool.com |
| Facts checked | 22 Sep 2026 |
CarbonTool integrations
CarbonTool lists 9 integrations on its own site.
- SAP
- Oracle NetSuite
- Microsoft Dynamics 365
- QuickBooks
- SAP Ariba
- Coupa
- Salesforce
- Sage
- Workday
Alternatives to CarbonTool
- IBM EnviziA broad Scope 1–3 platform for organizations with complex sustainability data needs.9.4
- ACT Group Decarbonization PlatformAn end-to-end platform for carbon accounting, supplier programs and renewable-energy procurement.9.3
- NormativeA Scope 1–3 platform with deep emissions-factor coverage, supplier engagement, and audit-ready reporting.9.1
See all CarbonTool alternatives →
CarbonTool vs the competition
- CarbonTool vs IBM Envizi
- CarbonTool vs ACT Group Decarbonization Platform
- CarbonTool vs Normative
- CarbonTool vs Watershed
- CarbonTool vs Persefoni
- CarbonTool vs Sweep
Compare CarbonTool with any tool side by side →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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