Re-run the carrier's ETS line with the 2026 phase-in, the voyage scope factor and the gases that count this year.
Allowances actually owed
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EUA
Correct surcharge
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EUR
Over-billed (+) / under-billed (-)
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EUR
Verdict
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Gases in scope for this year
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Surrender deadline
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Keep this check as a file, and be reminded before you surrender. Every calculation above is free, with no key and no limit. The full version saves each checked line as a .csv row you keep as your dispute file, and sets reminders 30, 14 and 1 days before the surrender deadline.
$60 once · one licence key per person or team seat · A US customs consultant bills $34 to $79 an hour; independent trade-compliance firms charge $150 to $400 an hour.
2026 phase-in at 100% Applies the surrender percentage for the emission year you pick: 40% for 2024 emissions, 70% for 2025, 100% for 2026 onwards. A carrier still billing on 70% is billing last year's rule.
50% or 100% voyage scope Emissions are 100% in scope between two EEA ports and at berth in an EEA port, but only 50% on a voyage into or out of the EEA from a non-EEA port. Getting this backwards doubles the line.
Methane and N2O from 2026 CH4 and N2O joined the EU ETS on 1 January 2026, as CO2e. The tool counts them for 2026 emissions and leaves them out for 2024 and 2025, so the same LNG dual-fuel voyage gives a different answer per year.
The euro difference on the line Compares the allowances actually owed against what the carrier billed and names the gap in euro and in percent, which is the sentence you put in the dispute email.
Surrender deadline Holds the 30 September surrender date for the emission year so a correction invoice is disputed before the allowances are handed over, not after.