Reference
·Supporting source
Thailand draft carbon tax rate (2025-2026)
THB 200-500 / tCO2e
The draft Climate Change Act circulated by the Ministry of Natural Resources and Environment (MoNRE) and the Excise Department contemplates a carbon tax on fossil fuel combustion in the range of THB 200-500 per tonne of CO2 equivalent, with initial rates expected at the lower end and a glide path upward through 2030. Natural gas combustion at roughly 0.20 tCO2/MWh would face an incremental cost of approximately THB 40-100/MWh — material but smaller than coal at ~0.95 tCO2/MWh and ~THB 190-475/MWh. The tax design is still under inter-ministerial review; first imposition is targeted for fiscal year 2026 with sectoral phase-in.
Figure in context
The draft Climate Change Act circulated by the Ministry of Natural Resources and Environment (MoNRE) and the Excise Department contemplates a carbon tax on fossil fuel combustion in the range of THB 200-500 per tonne of CO2 equivalent, with initial rates expected at the lower end and a glide path upward through 2030. Natural gas combustion at roughly 0.20 tCO2/MWh would face an incremental cost of approximately THB 40-100/MWh — material but smaller than coal at ~0.95 tCO2/MWh and ~THB 190-475/MWh. The tax design is still under inter-ministerial review; first imposition is targeted for fiscal year 2026 with sectoral phase-in.
The draft Climate Change Act circulated by the Ministry of Natural Resources and Environment (MoNRE) and the Excise Department contemplates a carbon tax on fossil fuel combustion in the range of THB 200-500 per tonne of CO2 equivalent, with initial rates expected at the lower end and a glide path upward through 2030. Natural gas combustion at roughly 0.20 tCO2/MWh would face an incremental cost of approximately THB 40-100/MWh — material but smaller than coal at ~0.95 tCO2/MWh and ~THB 190-475/MWh. The tax design is still under inter-ministerial review; first imposition is targeted for fiscal year 2026 with sectoral phase-in.
Time scope
Draft 2025-2026 implementation
Source basis
Supporting source
Interpretation notes
What this tells you
The draft Climate Change Act circulated by the Ministry of Natural Resources and Environment (MoNRE) and the Excise Department contemplates a carbon tax on fossil fuel combustion in the range of THB 200-500 per tonne of CO2 equivalent, with initial rates expected at the lower end and a glide path upward through 2030. Natural gas combustion at roughly 0.20 tCO2/MWh would face an incremental cost of approximately THB 40-100/MWh — material but smaller than coal at ~0.95 tCO2/MWh and ~THB 190-475/MWh. The tax design is still under inter-ministerial review; first imposition is targeted for fiscal year 2026 with sectoral phase-in.
What not to do with it
Rate is preliminary and subject to cabinet adoption. Initial implementation likely covers power, refining, and cement sectors first.
Related figures
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Thailand LNG import volume (2020-2024)
EPPO Thailand Energy Statistics; GIIGNL Annual Report 2024; PTT Annual Report 2024
Thailand domestic natural gas production (2020-2024)
Department of Mineral Fuels
Natural gas share of Thailand power generation (2020-2024)
EGAT Annual Report 2024; EPPO Electricity Statistics; Energy Regulatory Commission
Thailand LNG terminal regasification capacity (ranked)
PTT LNG company disclosures; EPPO; Energy Regulatory Commission tariff filings; Gulf Energy Development
Thailand LNG supply by source country (2024)
PTT LNG cargo disclosures; GIIGNL Annual Report 2024; Argus Media LNG trade flow
PDP 2024 gas-to-power target (2037)
Energy Policy and Planning Office
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