CBAM cost estimator (EU Carbon Border Adjustment)

cost(y) = volume × max(0, intensity − (1 − payable(y)) × CSCF × benchmark) × EU price

The importer pays for embedded emissions above the free allocation an EU producer would still get. "1 − payable share" is the CBAM factor; it shrinks to zero by 2034.

• volume
  Tonnes exported to the EU (MWh for electricity) · t
  Your data
• payable(y)
  Share of emissions payable in year y (one row per year, 2.5% in 2026 → 100% in 2034) · fractionIndia: 0.025 fraction · Reg. (EU) 2023/956 Art. 31 phase-in — cross-validated Karbunwise + GreenSutra↗ source
  Factor table
• CSCF
  Cross-sectoral correction factor · fractionIndia: 1 fraction · Commission Implementing Decision (EU) 2026/1862, Art. 1 — 100 % for every year 2026-2030↗ sourcepending review
  Factor table
• benchmark
  Product benchmark for the production route · tCO₂e / tValue depends on the activity, sector or product chosen; each comes from the factor table with its source.
  Factor table
• EU price
  EU ETS / CBAM certificate price (user can overwrite) · € / tCO₂eIndia: 75.36 EUR per tCO2e · Commission Q1 2026 published price (7 Apr 2026) — quarterly in 2026, weekly from 2027; keep current↗ sourcepending review
  Factor table

intensity = India default × (1 + mark-up(y))

Without verified data the EU default value applies, with a mark-up that rises by year (fertilisers carry a flat mark-up).

• India default
  EU default value for India · tCO₂e / tValue depends on the activity, sector or product chosen; each comes from the factor table with its source.
  Factor table
• mark-up(y)
  Default-value mark-up by year (10% / 20% / 30%) · fractionIndia: 0.1 mark-up · IR (EU) 2025/2621 Annex I — cross-validated Karbunwise + GreenSutra↗ source
  Factor table
• mark-up fert
  Fertiliser mark-up · fractionIndia: 0.01 mark-up · IR (EU) 2025/2621 Annex I (fertilisers flat 1%) — via GreenSutra; confirm with consultant↗ sourcepending review
  Factor table
• fert fallback
  Fertiliser mark-up if the row is missingValue used: 0.01
  Ploxi assumption

cost_verified(y) = volume × max(0, verified − (1 − payable(y)) × CSCF × benchmark_route) × price; saving = Σ (cost_default − cost_verified)

With a verified figure the declared production route's benchmark applies, and the tool shows what verification saves over the years.

• verified
  Verified embedded emissions · tCO₂e / t
  Your data
• route
  Declared production route (sets the benchmark row)
  Your data