Accelerated Capital Allowances: A Smart Way for Businesses to Invest and Reduce Tax
New Revenue guidance highlights how certain investments can be written off faster for tax purposes.

For many Irish businesses, investing in new equipment or vehicles is a necessary step in staying competitive. What is less widely understood is that certain investments can also provide immediate tax relief through accelerated capital allowances.
Recent guidance from Revenue outlines how companies can claim capital allowances on various business assets such as plant and machinery, vehicles, industrial buildings, and certain intangible assets. These allowances reduce the taxable profits of a business and therefore lower the amount of corporation tax payable.
Under standard rules, most plant and machinery is written off at 12.5% per year over eight years, while industrial buildings are generally written off at 4% over 25 years.
However, certain qualifying investments can benefit from Accelerated Capital Allowances (ACA), meaning the cost of the asset may be claimed in full in the first year it is used in the business.
What types of investments may qualify?
Accelerated allowances may apply to assets such as:
- Energy-efficient equipment
- Electric or alternative fuel vehicles
- Gas vehicles and refuelling equipment
- Certain employee facilities such as workplace creches or gyms
For businesses investing in operational upgrades, sustainability measures or modern equipment, these allowances can significantly improve the cashflow impact of capital expenditure.
Why this matters for Irish businesses
Capital investment decisions are rarely made for tax reasons alone. However, understanding the tax treatment of those investments can make a substantial difference to overall project costs.
Rachel McKenna, Senior Tax Manager at Orbitus, notes:
“Many businesses are surprised to learn that certain equipment purchases can be fully written off in the first year for tax purposes. When structured correctly, accelerated capital allowances can significantly reduce the short-term tax cost of investing in more efficient equipment.”
With energy costs, operational efficiency and sustainability increasingly on the agenda for Irish businesses, the tax treatment of capital investments is becoming more relevant.
Tommy Walsh, Tax Partner at Orbitus, adds:
“Capital allowances are one of the most practical areas of tax planning for SMEs. When businesses are investing in machinery, vehicles or equipment, it is important to understand the available reliefs in advance so that the investment is structured in the most tax-efficient way.”
Planning before you invest
Before committing to significant capital expenditure, businesses should consider:
- Whether the asset qualifies for accelerated allowances
- When the asset will come into use for tax purposes
- How the purchase will affect taxable profits in the relevant year
Taking advice at the planning stage can help ensure that businesses maximise available tax relief while making the right long-term investment decisions.
Thinking about upgrading equipment or vehicles in your business?
The Orbitus Tax team works with businesses across Munster to ensure investments are structured in the most tax-efficient way possible.
Speak with our team before committing to a major capital purchase.
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