Irish SME Carbon Reporting Guide
Carbon Reporting for Irish SMEs: Practical, Straightforward, Audit-Ready
If your Irish business has received a carbon data request, been asked about CSRD or simply wants to understand what carbon reporting means for you, this is the practical starting point. No jargon. No enterprise consulting. Just what Irish SMEs actually need to know.
Carbon reporting for Irish SMEs does not need to be complicated. Most Irish SMEs are not directly subject to mandatory CSRD after the Omnibus I Directive in 2025, but many are affected indirectly through supply chain data requests from large CSRD-reporting clients. GreenKPO helps Irish SMEs measure Scope 1, 2 and 3 emissions from existing business data and produce an audit-ready carbon report aligned to CSRD, VSME and GHG Protocol standards, typically within one working week.
CSRD
EU Corporate Sustainability Reporting Directive, Irish law since July 2024. Mandatory for large Irish companies. Irish SMEs are mainly affected indirectly through supply chain Scope 3 data requests.
VSME
Voluntary Sustainability Reporting Standard for SMEs. The EU standard recommended in 2025 for non-listed Irish SMEs responding to supply chain requests. 11 disclosures in the Basic Module.
GHG Protocol
The globally recognised framework for measuring and reporting greenhouse gas emissions. GreenKPO uses GHG Protocol methodology and DEFRA emission factors for all calculations.
Why Irish SMEs are being asked about carbon reporting in 2025
Three things are driving carbon reporting for Irish SMEs in 2025. First, CSRD supply chain pressure: large Irish companies now reporting under CSRD need Scope 3 data from their Irish SME suppliers. If you supply to a large Irish retailer, bank, pharmaceutical company or technology firm, a data request is either already in your inbox or likely coming. Second, lender and investor requirements: Irish and international lenders are increasingly requesting carbon data as part of lending decisions and investment due diligence. Third, procurement: Irish public sector and large corporate procurement processes are beginning to include sustainability criteria for suppliers.
The three building blocks of Irish SME carbon reporting
Scope 1 emissions are your direct emissions from gas, diesel, fuel oil and company vehicles. Scope 2 emissions are your purchased electricity. Scope 3 emissions cover your value chain, including purchased goods and services, business travel, employee commuting and logistics. For most Irish SMEs, Scope 1 and 2 are the starting point and the immediate priority for supply chain data requests. Scope 3 is then added as the detail required by clients becomes more specific. GreenKPO measures all three from your existing Irish business data.
What GreenKPO produces for Irish SMEs
GreenKPO is a structured carbon accounting platform that produces audit-ready output aligned to CSRD, VSME and GHG Protocol standards. Every figure is traceable to its source, every calculation logged with the emission factor and date applied. The report is designed to be presented to your largest client, your bank, your auditor or your procurement contact without additional preparation. Most Irish SMEs complete their first full report within one working week of onboarding. No sustainability team is required.
CSRD, VSME and Scope 3: how they connect for Irish SMEs
| What it is | How it affects Irish SMEs | |
|---|---|---|
| CSRD | Mandatory EU directive, Irish law July 2024 | Mainly indirect, through supply chain requests from large clients who are subject to it |
| VSME | Voluntary EU standard for non-listed SMEs, recommended 2025 | The format Irish SMEs should use when responding to supply chain carbon data requests |
| Scope 3 | Indirect emissions across the value chain, GHG Protocol category | The emissions category your large clients need from you for their own CSRD reporting |
| Omnibus I | EU directive adopted 2025, narrowed mandatory CSRD scope | Made VSME the legal cap on what large companies may request from Irish SME suppliers |
- CSRD supply chain requests: what your client is asking for and how to respond
- VSME Basic Module: the 11 disclosures Irish SMEs need to know about
- Scope 1, 2 and 3 explained for Irish business owners without sustainability staff
- Audit-ready output, not a spreadsheet or a PDF with no source data
- Irish regulatory context: CSRD (EU) Regulations 2024, VSME 2025, ESRS E1
- No sustainability team required, onboard in 30 minutes
Common questions
Start your Irish carbon reporting journey today
Book a GreenKPO demo to see the platform with your own Irish business data. Most clients have their first audit-ready carbon report within one working week.