IMO carbon price showdown: shipping braces for cost surge

The IMO's mid-term measures, crystallizing at MEPC 85 and soon after at the December 2026 Propulsion & Future Fuels Conference, are poised to fundamentally reshape the maritime regulatory landscape by directly influencing shipowners' fuel choices and compliance strategies. This evolving framework, intersecting with the EU ETS and FuelEU Maritime policies, is increasingly central to investment decisions, affecting the long-term asset value of fleets as companies scramble to decode and adapt to these overlapping mandates.

By April 2025, the IMO aims to approve a global marine fuel standard paired with an emissions-pricing mechanism targeting ships over 5,000 gross tonnes—responsible for over 85% of international shipping emissions. However, the debate is fierce, with four competing proposals ranging from Tuvalu’s ambitious $300-per-tonne Tier 1 carbon price and 100% direct-compliance threshold starting in 2029, to Liberia’s counterproposal eliminating direct greenhouse gas charges in favor of tradable surplus units, reflecting a fundamental tension between environmental ambition and practical fuel availability.

Critics warn that Liberia’s reliance on tradable credits risks volatile compliance costs and weakens the stable price signals essential for incentivizing investment in zero-emission fuels, while also eliminating vital revenue streams for developing countries. This concern highlights the delicate balance the IMO must strike between fostering market stability and ensuring equitable support for vulnerable nations, a challenge compounded by the complex interplay with EU policies that already impose charges under the EU ETS and FuelEU Maritime, raising fears of overlapping compliance costs for companies operating through European ports.

The impending IMO decision on global carbon pricing carries profound implications for shipping hubs like Cyprus and Greece, where the financial viability of older vessels and the strategic choice to invest in dual-fuel engines or other cleaner technologies hinge on the final carbon price framework. With investment decisions worth hundreds of millions on the line, the shipping industry watches closely, knowing that the regulatory outcome will decisively shape fleet modernization and the broader trajectory toward maritime decarbonization.

By mid-2026, the looming IMO carbon levy threatens to significantly raise shipping costs, with Luis Resano of Abac estimating an added $380 per tonne of carbon equivalent—equivalent to roughly $200 more per tonne of fuel consumed. This cost pressure is compounded by the fact that alternative low-carbon fuels, such as Petrobras’s biodiesel blend (B24), remain 20% to 30% more expensive than conventional fuels, and scalable replacements for oil are not yet available, underscoring the economic challenge of decarbonization.

Despite regulatory momentum, the final approval of the IMO carbon levy has been delayed due to opposition from the U.S. government, as noted by Leandro Barreto of Solve Shipping, which has slowed market confidence and the transition timeline. Meanwhile, shipping companies like Hapag-Lloyd, led by CEO Luigi Ferrini, are pragmatically managing commercial risks by adopting drop-in biofuels such as biodiesel and biomethane that require no major vessel modifications, while viewing longer-term fuels like methanol and ammonia as future options.

Contrary to fears of steep consumer cost shocks, experts like Andy Lane from CTI Consultancy argue that meaningful carbon pricing could actually accelerate the shift to lower-GHG fuels without triggering significant price spikes. However, current mandatory measures such as EEXI and CII, which target energy efficiency and carbon intensity, have had limited financial impact so far, with enforcement largely corrective rather than punitive, and the partial accounting of greenhouse gases—especially in LNG’s favor—suggests that economic incentives may be driving fuel choices more than environmental considerations.

By mid-2026, Phi Earth Technologies has positioned itself at the forefront of maritime decarbonization through its innovative digital fuel-verification platform, which uniquely integrates Measurement, Reporting, and Verification (MRV) systems with AI-driven digital twins to simulate and forecast fuel supply and lifecycle carbon intensity. This approach aims to deliver trusted, real-time compliance data critical for navigating the complex regulatory landscape surrounding low-carbon maritime fuels. To ensure robustness and industry relevance, Phi Earth is actively engaging stakeholders via market research surveys and forging strategic collaborations with technology leader NVIDIA and the American Bureau of Shipping, underscoring a commitment to both technological rigor and practical applicability.

Complementing its platform development, Phi Earth Technologies is conducting extensive field trials across the US and Asia Pacific, employing cutting-edge tools such as multispectral aerial drones and Short-Wave Infrared (SWIR) satellite data to enhance the precision and reliability of its MRV methodologies. These trials not only refine the verification process but also demonstrate the company’s dedication to leveraging advanced remote sensing technologies to increase transparency and accountability in low-carbon fuel supply chains—a critical step in supporting maritime operators’ operational transitions amid evolving market dynamics.

A dynamic lifecycle assessment framework for the Asia–Europe Green Shipping Corridor reveals a clear phased fuel transition pathway, where soybean-based biodiesel emerges as a pragmatic near-term decarbonization solution, while electrofuels are projected to dominate the maritime fuel mix post-2040. This evolution is modeled under three distinct scenarios—Business as Usual, Most Economical, and Maximum Carbon Reduction—integrating technology learning curves and dynamic parameters such as climate impact, sustainability, and economic feasibility to realistically capture the trajectory of fuel adoption through 2050.

Regulatory frameworks play a pivotal role in shaping these fuel transition pathways, with the International Maritime Organization’s Net-Zero Framework effectively narrowing regional cost–emission disparities, thereby incentivizing cleaner fuel uptake. Conversely, the European Union’s FuelEU Maritime regulation imposes a cost premium of up to 7.6%, reflecting a stringent regulatory environment that accelerates the shift towards low-carbon fuels despite increased operational expenses. This regulatory push underscores how policy instruments can recalibrate market dynamics and fuel economics within the corridor.

While the International Maritime Organization (IMO) has laid groundwork for decarbonization through measures like EEXI and CII, the pace of effective mandatory regulations for existing ships remains sluggish, spanning nearly three decades since the first CO₂ resolution in 1997. This slow regulatory evolution has left gaps, such as the CII’s failure to account for all greenhouse gases, inadvertently encouraging economically driven shifts to LNG-powered vessels despite their questionable environmental benefits. As Andy Lane from CTI Consultancy argues, meaningful pricing of maritime emissions could catalyze the adoption of lower-GHG fuels without triggering the feared consumer cost shocks, suggesting that economic incentives—currently limited and largely administrative—are crucial to overcoming this regulatory and market inertia.