Tax write-offs for an electric car with zero emissions

tiemadmin • 5 June 2025

Buying a zero-emission electric car through your limited company could mean 100% tax relief in year one. Understand the capital allowances and boost your business’s tax efficiency with smart vehicle choices.

If you are considering purchasing a company car through a limited company, it’s important to understand the tax implications, especially the significant tax write-offs available for electric vehicles with zero emissions.

The tax treatment will depend on how the car is financed, but in most cases, the vehicle will be classified as a fixed asset, with tax relief available through capital allowances. Unlike other business assets, company cars do not qualify for the Annual Investment Allowance (AIA). Instead, they fall into specific capital allowance categories based on their CO₂ emissions and when they were purchased.

If you purchase a new and unused fully electric or zero-emission car, it qualifies for a 100% First Year Allowance (FYA). This means:

  • You can deduct the full cost of the car from your company’s taxable profits in the year of purchase.
  • The car must be brand new and registered as zero-emission to qualify.

If the car does not meet the criteria for 100% FYA, it will fall into one of the following categories:

  • 18% Main Rate Allowance: Applies to cars with lower CO₂ emissions (but not zero). 18% of the car’s cost can be written off each year on a reducing balance basis.
  • 6% Special Rate Allowance: Applies to cars with higher CO₂ emissions or certain second-hand vehicles. Only 6% of the cost is deductible each year.

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