Carbon Accounting & EU Border Carbon Tax 2026 | Complete Guide
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Carbon Accounting & EU Border Carbon Tax

2026

Analysis and implications for businesses

What is Carbon Accounting?

Carbon accounting (or greenhouse gas accounting) is the process of quantifying an organization's impact on the climate by calculating the greenhouse gases (GHG) it emits, i.e., its carbon footprint.

Physical Carbon Accounting

  • Measures direct and indirect GHG emissions
  • Includes Scopes 1, 2, and 3
  • Identifies activities generating the most emissions

Financial Carbon Accounting

  • Assigns financial value to carbon produced or absorbed
  • Enables earning and trading carbon credits
  • Facilitates participation in carbon markets

Carbon accounting has become an essential tool for businesses in 2026

Benefits of Carbon Accounting

Economic Benefits

  • Identify high-consumption operations
  • Reduce energy waste
  • Reduce costs through efficient energy management

Social Benefits

  • Transparency in carbon reporting
  • Attract investors, clients, and talent
  • Facilitate access to green financing

Environmental Benefits

  • Track and reduce GHG emissions
  • Contribute to fighting climate change
  • Support transition to a net-zero future

Carbon accounting has become an essential tool for businesses in 2026

GHG Emissions Calculation Method

Fundamental formula

CO₂e Emissions
=
Activity Data
×
Emission Factor (EF)

Activity Data

Represents the quantity of energy or resources consumed.

  • Examples: kWh of electricity, liters of fuel, tons of coal
  • Basis for emission calculations

Emission Factors (EF)

Quantify the rate of GHG emissions per unit of activity.

  • Based on reliable international databases
  • Examples: emissions per kWh of electricity, per liter of fuel

Emission factors (EF) are typically based on International Energy Agency (IEA) data

The Three Emission Scopes

The Greenhouse Gas Protocol (GHG Protocol) establishes a classification of emissions into three distinct scopes to facilitate measurement and management.

Scope 1

Direct emissions from sources owned or controlled by the organization.

  • Fuel combustion in facilities
  • Fleet vehicle emissions
  • Other direct sources

Scope 2

Indirect emissions related to purchased energy consumption.

  • Electricity used
  • Heating and cooling
  • Other purchased energy

Wattnow automatically tracks Scope 2 emissions by monitoring your energy consumption in real time, providing accurate data for carbon accounting.

Scope 3

Other indirect emissions throughout the value chain.

  • Goods transportation
  • Suppliers
  • Use of sold products
  • Business travel

Scope 3 is gaining importance with new European regulations

Scope 2 is the most accessible starting point for carbon tracking, because understanding your energy is the fastest way to reduce both emissions and costs.

Let Wattnow guide you in your first step toward carbon control.

Let's get in touch today

EU CBAM: Overview and Objectives

What is CBAM?

The Carbon Border Adjustment Mechanism (CBAM) is an essential component of the EU's "Fit for 55" climate package. It aims to counter "carbon leakage" by applying a carbon price to imported goods.

Main Objectives

Prevent carbon leakage

Prevent companies from relocating production to countries with less strict environmental regulations

Harmonize carbon costs

Equalize carbon costs between EU-made products and imported ones

Promote clean technologies

Encourage foreign producers to adopt cleaner technologies

Implementation

Full operational phase

CBAM will enter its full operational phase in 2026

Affected sectors

Initially covers steel, cement, aluminum, fertilizers, hydrogen, and electricity sectors

Future evolution

Expansion planned to other sectors by 2030, aligned with EU climate neutrality goals for 2050

CBAM is redefining sustainability and global trade strategies

How CBAM Works

Operating principle

CBAM applies a carbon price to goods imported into the EU, based on the greenhouse gas emissions intrinsic to their production. It aims to harmonize carbon costs between products manufactured within the EU and those imported.

Initially covered sectors

Steel
Cement
Aluminum
Fertilizers
Hydrogen
Electricity

Planned evolution

2026
Start
2030
Expansion
2050
Goal

CBAM will be extended to other sectors by 2030, strengthening the alignment of global trade with EU climate neutrality goals.

ETS vs Carbon Tax

Comparison of climate policy tools and their pricing mechanisms

VS

Emissions Trading System (ETS)

Mechanism

Sets a total emissions cap and allows quota trading

Certainty

Ensures certainty on total reduced emissions quantity

Flexibility

Companies can buy or sell quotas, encouraging innovation

Carbon Tax

Mechanism

Sets a direct price per ton of CO₂ emitted

Certainty

Ensures certainty on carbon price

Flexibility

Companies can choose to pay the tax or reduce emissions

Impact on emissions

No total cap; emissions may increase if companies pay

ETS-CBAM Synergy

ETS

EU Emissions Trading System

Synergy

CBAM

Carbon Border Adjustment Mechanism

Carbon cost equivalence

CBAM ensures carbon costs are equivalent for EU-based producers and those outside the EU.

Prevention of "carbon leakage"

Prevents companies from relocating production to countries with less strict environmental regulations.

Encouragement of innovation

CBAM encourages exporters to the EU to adopt cleaner technologies and reduce emissions.

Global influence

Exerts positive influence on environmental practices of international trading partners.

Together, ETS and CBAM create an environment where sustainability is rewarded and pollution penalized, consolidating the EU's position as a global leader in carbon regulation.

Conclusions and Frequently Asked Questions

2026 Challenges Summary

Carbon accounting has become a crucial tool for businesses in 2026, enabling them to measure and reduce their greenhouse gas (GHG) emissions. With the implementation of CBAM (Carbon Border Adjustment Mechanism), this practice fits into a commercial landscape where environmental compliance and competitiveness are linked, pushing companies toward sustainable strategies.

Frequently Asked Questions

What is the EU Border Carbon Tax (CBAM)?

CBAM is a mechanism that taxes imported goods based on their carbon emissions, ensuring EU industries aren't disadvantaged against foreign competitors.

How does carbon accounting help businesses?

It enables companies to measure and manage their carbon footprint, comply with regulatory requirements, and attract committed investors.

Which industries are affected by the EU Border Carbon Tax?

Initially, CBAM applies to steel, cement, aluminum, fertilizers, hydrogen, and electricity, with expansion planned to other sectors by 2030.

Is carbon accounting mandatory in 2026?

While not legally mandatory for all companies, most large organizations must disclose their carbon emissions and climate risks under the CSRD Directive.

Scope 2 is the most accessible starting point for carbon tracking, because understanding your energy is the fastest way to reduce both emissions and costs.

Let Wattnow guide you in your first step toward carbon control.

Let's get in touch today

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Educational content on carbon accounting and the EU CBAM mechanism.