The introduction of the EU Carbon Border Adjustment Mechanism is placing domestic carbon-pricing decisions at the centre of economic planning across the Western Balkans. Governments exporting electricity, metals and cement to the EU are weighing whether to collect carbon revenues through national systems or allow a larger share of the effective carbon cost to be reflected in EU importers’ obligations. The policy relevance is tied to how domestic charges interact with CBAM recognition.
The impact is most pronounced in economies that still rely on coal-fired electricity generation and carbon-intensive industrial production. Domestic pricing systems can generate revenue for decarbonisation while also creating documentation of carbon costs that may be recognised under CBAM. The extent of that recognition depends on how each national scheme is designed and implemented.
Carbon pricing measures in Serbia, Montenegro and Bosnia and Herzegovina
Serbia introduced a greenhouse-gas emissions tax of EUR 4 per tonne of CO₂ equivalent in January 2026. The tax applies to specified industrial sectors and electricity generation. The taxable emissions base is calculated after deductions for reference emissions.
Montenegro operates an emissions trading framework and revised its rules in 2026. Its electricity utility has indicated substantially higher expected payments linked to coal-related emissions. Bosnia and Herzegovina faces significant CBAM exposure while maintaining a more fragmented system for carbon pricing and electricity governance.
How domestic charges translate into CBAM recognition
National carbon taxes and emissions trading systems do not automatically reduce EU CBAM liabilities for exporters. Recognition depends on which emissions are covered, whether a carbon price was actually paid, and what relief or allocation arrangements apply. It also depends on how payments are verified and whether they meet EU legal requirements for recognising foreign carbon prices.
A statutory tax rate alone does not determine the amount exporters can claim as an eligible carbon payment. If a government announces a charge but collects only limited revenue from a particular installation, the effective credit available to exporters may be far below the headline rate. Exporters therefore need evidence tied to costs incurred rather than confirmation that a national tax or ETS exists.
Systems that record payments clearly and provide reliable verification can make domestic carbon pricing more relevant for companies competing in the European market. In practice, exporters need documentation of effective costs paid to support claims connected to EU importers’ CBAM calculations.
Revenue use, decarbonisation costs and reporting expectations
A meaningful domestic carbon price can raise operating costs for coal-fired power plants and energy-intensive manufacturers before revenues are converted into cleaner infrastructure. This can create policy challenges where exposed companies include major employers and strategically important utilities. Governments must manage the transition while maintaining incentives for emissions reductions.
Authorities are tasked with deciding how carbon revenues will be used, including support for electricity grid upgrades, energy efficiency measures, industrial process improvements and worker transition. The distribution and timing of spending are also relevant for implementation outcomes.
Ring-fencing proceeds for electricity networks, industrial efficiency measures or worker retraining could improve public acceptance. Investors require transparent project-selection procedures and clear delivery milestones to assess whether revenues translate into practical emissions-reduction measures.
The financial position of industrial operators may differ across sectors and ownership structures. A coal-fired utility making carbon payments could still require public-service obligations and liquidity support, while a privately owned steelworks may not have access to comparable compensation arrangements.
Governments face pressure to publish information beyond the statutory carbon rate. Disclosures referenced include emissions covered, applicable allowances or reference values, actual revenue collected, and projects financed through proceeds.
Such publication would help determine whether domestic carbon pricing changes production decisions or primarily redistributes costs among companies, consumers and public budgets. It would also provide exporters with supporting evidence when demonstrating carbon prices effectively paid to EU importers.
Regional electricity market integration and cross-border compliance
Divergent national approaches can complicate integration of Western Balkan electricity markets with the EU. Countries seeking closer participation may continue operating with different emissions prices, electricity default factors and compliance arrangements even when cross-border interconnections allow electricity flows between markets.
In October, the Energy Community warned that CBAM should not discourage renewable energy investment or divide electricity markets along EU borders. Electricity market coupling and equivalence between carbon-pricing systems are linked policy objectives, but progress on one does not automatically advance the other.
Any derogations or recognition arrangements must satisfy defined legal conditions. These differences matter for electricity exporters because CBAM exposure depends on applicable emissions treatment as well as regulatory arrangements governing cross-border power trade.
Bosnia and Herzegovina: IMF estimate of macroeconomic exposure
The macroeconomic effects are illustrated by an International Monetary Fund assessment of Bosnia and Herzegovina in 2026. The IMF estimates that CBAM currently concerns approximately 11% of the country’s exports.
In a scenario without offsetting domestic measures, the mechanism could reduce real GDP by between 0.4% and 0.7% by 2035. The assessment describes this as a scenario rather than an inevitable forecast of losses, while indicating potential impacts on national output and public finances beyond individual export contracts.
For governments across the region, policy requirements extend beyond deciding whether to introduce a domestic tax or emissions trading system. Effective arrangements require credible emissions inventories, transparent collection and accounting of revenues, investment in measures that lower carbon intensity, and documentation enabling companies to demonstrate eligible payments to EU importers.
Without these elements, announcing a domestic carbon price may have limited consequences for the actual carbon cost attached to a tonne of electricity, metal or cement exported to the European market.