The EU’s Carbon Border Adjustment Mechanism is placing domestic carbon-pricing choices 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’ charges. The policy relevance is tied to how carbon costs are recorded and whether they can be recognised for CBAM purposes.
The question is most acute where coal-fired electricity generation and carbon-intensive industrial facilities remain central. Domestic pricing measures can generate revenue for decarbonisation while producing documentation of carbon costs that may be recognised under CBAM. The extent of that recognition depends on the design and implementation of each national system.
Serbia, Montenegro and Bosnia and Herzegovina carbon-pricing settings
In January 2026, Serbia introduced a greenhouse-gas emissions tax set at EUR 4 per tonne of CO₂ equivalent. The tax covers 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 tied to coal-related emissions. Bosnia and Herzegovina faces significant CBAM exposure alongside 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 in an equivalent way. 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 the EU’s legal requirements for recognising foreign carbon prices.
A stated statutory tax rate does not by itself determine the eligible amount exporters can claim. 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 of effective 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 that supports claims about carbon costs paid to EU importers under CBAM requirements. The value of recognition is linked to verifiable payment records rather than programme announcements alone.
Revenue use, decarbonisation costs and disclosure requirements
A domestic carbon price can raise operating costs for coal-fired power plants and energy-intensive manufacturers before revenue is converted into cleaner infrastructure. This can create policy trade-offs for governments where exposed companies include major employers and strategically important utilities. Authorities must decide how to use carbon revenues while maintaining incentives for emissions reductions.
Carbon revenues can be directed toward electricity grid upgrades, energy efficiency, industrial process improvements and worker transition measures. How funds are distributed and timed also matters for acceptance and implementation. Ring-fencing proceeds for electricity networks, industrial efficiency measures or worker retraining is one approach discussed in relation to public acceptance.
Investors require transparent project-selection procedures and clear delivery milestones to assess whether revenues become practical emissions-reduction measures. Financial impacts may differ across operators, including cases where a coal-fired utility responsible for carbon payments continues to require public-service obligations and liquidity support. A privately owned steelworks may not have access to comparable compensation arrangements.
Governments face pressure to publish information beyond the statutory carbon rate. Relevant details include emissions covered, applicable allowances or reference values, actual revenue collected, and projects financed using proceeds. Such disclosures are intended to show whether domestic pricing changes production decisions or redistributes costs among companies, consumers and public budgets.
Electricity market integration and regional differences
Different national approaches can complicate integration of Western Balkan electricity markets with the EU. Countries seeking closer participation may still operate with different emissions prices, electricity default factors and compliance arrangements even when cross-border interconnections allow electricity transfers. These differences affect how CBAM exposure is reflected for electricity exporters.
In October, the Energy Community warned that CBAM should not discourage renewable energy investment or divide electricity markets along the EU’s borders. Electricity market coupling and equivalence between carbon-pricing systems are described as connected policy objectives, but progress in one area does not automatically advance the other. Any derogations or recognition arrangements must satisfy defined legal conditions.
For exporters of electricity, exposure under CBAM depends on applicable emissions treatment and regulatory arrangements governing cross-border power trade. Where those elements differ across jurisdictions, compliance outcomes can diverge even with physical interconnections enabling cross-border flows. The interaction between market rules and emissions accounting therefore remains central.
Macroeconomic exposure in Bosnia and Herzegovina
The International Monetary Fund’s 2026 assessment illustrates potential macroeconomic effects in Bosnia and Herzegovina. The IMF estimates that CBAM currently concerns approximately 11% of the country’s exports. The assessment also presents a scenario without offsetting domestic measures.
In that scenario, CBAM could reduce real GDP by between 0.4% and 0.7% by 2035. The IMF characterises this as a scenario rather than a forecast of inevitable losses. It indicates how carbon-border costs could affect national economic output and public finances beyond individual export contracts.
The policy challenge across the region extends beyond choosing whether to introduce a domestic tax or an 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 exported electricity, metal or cement under CBAM.