FinZahlen

CO2 Tax Calculator

Calculate the CO2 surcharge on your heating fuel or car fuel consumption under Germany's Fuel Emissions Trading Act (BEHG).

Calculate Your CO2 Levy
Heating Fuel
Annual Consumption
kWh

Typical: 10,000–25,000 kWh/year for a single-family home

I am a tenant

Since 01 January 2023, tenants share the CO2 levy with their landlord under the CO2KostAufG.

Calculation Year
Erdgas
CO2 Emissions

20.000 kWh × 0,201 kg/kWh

4,02 t

t CO₂

from your heating fuel consumption

Year-on-Year Comparison
CO2 priceYour cost
202445 €/t215,27 €
202555 €/t263,11 €
202665 €/t310,95 €
2025 · €55/t
CO2 Levy 2025

263,11 €

incl. 19% VAT

net (excl. VAT): 221,10 €

This calculation is for guidance only and does not substitute professional tax advice.

What is the CO2 Levy?

The CO2 levy (officially: national emissions trading scheme) is a charge on fossil fuels introduced in Germany on 1 January 2021 under the Fuel Emissions Trading Act (BEHG). It applies to heating oil, natural gas, LPG, petrol, and diesel. The CO2 price is passed on from fuel suppliers to end consumers as a surcharge on energy costs.

CO2 Prices Over Time
YearCO2 price (€/t)Note
202125 €/tOpening price
202230 €/tPlanned increase
202330 €/tFrozen due to energy crisis
202445 €/tIncrease after pause
202555 €/tFurther increase
202655–65 €/tAuction system (€55–65/t, max. €65/t)
Emission Factors
FuelEmission factorCO₂ per litre
Natural Gas0.201 t CO₂/MWh
Heating Oil0.266 t CO₂/MWh
LPG (Liquid Petroleum Gas)0.234 t CO₂/MWh
Petrol (E10)2.37 kg CO₂/L
Petrol (E5/Super)2.40 kg CO₂/L
Diesel2.68 kg CO₂/L

Source: BAFA CO2 Factors Information Sheet

CO2KostAufG since 01.01.2023
Tenant–Landlord Cost Split

Since 1 January 2023, tenants and landlords share CO2 costs under the Carbon Cost Allocation Act (CO2KostAufG). The split is determined by the building's annual CO2 intensity in kg CO₂ per m² of heated floor area. The less energy-efficient the building, the more the landlord contributes.

CO₂ intensity (kg/m²/year)Tenant shareLandlord share
< 12100 %0 %
12 – < 1790 %10 %
17 – < 2280 %20 %
22 – < 2770 %30 %
27 – < 3260 %40 %
32 – < 3750 %50 %
37 – < 4244 %56 %
42 – < 4738 %62 %
47 – < 5232 %68 %
≥ 525 %95 %
CO2 levy: €0
Fuels Not Subject to CO2 Levy

The following energy sources are not (or only marginally) subject to the CO2 levy:

Heat pumps (electricity) · Wood pellets and biomass (renewable) · Solar thermal energy · District heating from renewable sources · Certified e-fuels and biofuels

Frequently Asked Questions

Sources & Further Reading