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Driving tax relief

How the extended 100% allowances can support zero emission investment throughout 2027

Flavio Ferri, Assistant Manager, Corporate Tax
14/08/2026

Investment in electric vehicles (EVs) and zero emission infrastructure is playing an increasingly important role in capital allowance planning, particularly as businesses align financial decision-making with sustainability and ESG objectives.

One of the most valuable incentives in this space remains firmly in place. The government has confirmed a further extension of 100% first year allowances (FYAs) for qualifying zero emission cars and EV charging points, providing certainty over immediate tax relief through to 2027.

For organisations reviewing fleet strategy, infrastructure investment, or longer-term capital expenditure plans, understanding how these allowances operate and how they interact with other reliefs is essential.

Why EV related incentives matter in capital allowance planning

Capital allowances determine when tax relief is available, not simply whether it can be claimed. In practice, the difference between upfront relief and gradual relief can have a meaningful impact on cash flow, investment timing, and effective tax rates.

EV specific incentives stand out because they allow businesses to:

  • claim 100% tax relief in the year of expenditure
  • reduce reliance on capital allowance pools and slower writing down allowances (WDAs)
  • align tax efficiency with sustainability and net zero commitments.

As other reliefs evolve, including reductions to main rate WDAs from April 2026, EV incentives remain one of the clearest opportunities for accelerated relief.

What has been extended to 2027?

The Autumn Budget confirmed a one year extension of the 100% FYAs for new and unused zero emission cars and plant or machinery used for EV charging points.

The revised deadlines are:

  • 31 March 2027 for businesses within Corporation Tax
  • 5 April 2027 for Income Taxpayers (including sole traders and partnerships).

This extension allows eligible businesses to continue to deduct the full qualifying cost from taxable profits in the year the expenditure is incurred, provided the relevant conditions are met.

Who will benefit the most from the extension?

While widely available, the relief is particularly relevant for businesses where EV investment is part of a broader operational or strategic plan.

  • Fleet operators: Businesses managing company car fleets can obtain immediate tax relief on qualifying zero emission vehicles, improving the commercial case for transitioning away from combustion engines.
  • Logistics and transport based businesses: For organisations planning phased fleet replacement, the extended allowance provides certainty on upfront tax relief during the transition to EVs.
  • Sustainability led organisations: Businesses with ESG or net zero frameworks can align capital investment decisions with both environmental objectives and tax efficiency, without deferring relief into future years.
  • Multi site organisations: The inclusion of qualifying EV charge points supports investment across offices, depots, retail locations, and operational sites.

Interaction with other reliefs

Understanding how EV allowances interact with broader capital allowances is key to maximising value.

  • EV 100% FYA vs annual investment allowance
    Although the annual investment allowance (AIA) also provides 100% relief, EV specific FYAs can be especially effective where:
    • AIA limits are shared within groups
    • AIA has already been allocated to other plant and machinery
    • businesses want certainty over asset specific relief without affecting other capex plans.
    It is important to note that allowances cannot be duplicated; the same expenditure can only benefit from one relief.
  • Reducing exposure to writing down allowances
    Assets relieved through EV specific 100% FYAs do not enter capital allowance pools. This limits future exposure to WDAs, which is increasingly relevant as the main WDA rate reduces from 18% to 14% from April 2026.

Wider economic and environmental considerations

The extension supports the UK’s longer term net zero objectives, while also recognising the role businesses play in developing charging infrastructure and accelerating EV adoption.

From a commercial perspective, many organisations assess EV investment across the full asset lifecycle, including energy costs, maintenance, regulatory direction, and reputational factors. Immediate tax relief strengthens this analysis by improving upfront economics without relying on uncertain future savings.

Planning for 2026/27 and beyond

With the relief now scheduled to end in 2027, timing matters. Businesses considering fleet renewals should review whether planned purchases fall within the extended window, while organisations planning infrastructure rollouts may benefit from aligning installation phases with the allowance time frame. At the same time, capital expenditure roadmaps should clearly distinguish between assets that qualify for immediate relief and those that will fall into slower relief regimes

Early visibility in these areas allows investment decisions to be structured deliberately rather than reactively.

Conclusion

The extension of 100% FYAs for zero emission cars and EV charging points preserves one of the most effective capital allowance incentives currently available.

At a time when other reliefs are tightening and WDA rates are reducing, EV related incentives continue to offer certainty, speed of relief, and strategic flexibility. For businesses investing in zero emission transport and infrastructure, this remains a valuable opportunity - albeit one with a clear end date.

In this context, taking a structured and proactive approach is increasingly important. Businesses considering EV investment, or already holding qualifying assets, should assess which assets qualify for 100% relief, how EV incentives interact with AIA, FYAs and WDAs, and whether existing claims can be optimised. Doing so will help ensure relief is claimed accurately, efficiently, while aligning capital investment with wider commercial and sustainability objectives.

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Stephen Metheringham
Stephen Metheringham
Director, Capital AllowancesLondon

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