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SEAI Grants in 2026: What Irish Business Owners and Homeowners Can Claim

Paddy Malone FCA AITI

By Paddy Malone FCA AITI

(Updated 15 April 2026)
Taxation 9 min read
Paddy Malone presenting Dundalk Chamber budget submission on grants and business supports

Energy costs are one of the most significant and controllable overheads for many Irish businesses. SEAI - the Sustainable Energy Authority of Ireland - provides grant funding to reduce the cost of energy efficiency improvements and renewable energy installations for both businesses and homes. The combination of SEAI grants and the tax treatment of the resulting capital expenditure makes energy investment one of the better-returning uses of business capital currently available.

Many businesses are not claiming the SEAI grants they are entitled to. Some are not aware the grants exist. Others have started the process but abandoned it because the application requirements seemed complex. This article demystifies both the grants and the tax treatment.

SEAI Grants for Businesses

EXEED (Excellence in Energy Efficient Design) is SEAI’s primary programme for larger business energy projects. It provides grant support for energy management systems, building fabric improvements, heating and cooling upgrades, and industrial process efficiency improvements. The grant rates and eligible technologies are updated periodically - check seai.ie for current rates - but for significant commercial energy projects, EXEED can reduce the capital cost substantially.

Support Scheme for Renewable Heat (SSRH) provides operational support payments for businesses that install renewable heat systems - biomass boilers, heat pumps, anaerobic digestion. The scheme pays a tariff per unit of renewable heat generated for a defined period, effectively subsidising the running cost of the system in addition to any capital grant.

Better Energy Communities funds energy upgrades in community and commercial buildings where multiple organisations are involved. This is relevant for business parks, community facilities, and mixed-use developments.

GreenStart is targeted specifically at SMEs with fewer than 250 employees that have not yet carried out an energy audit. It provides a subsidised energy audit to identify the most impactful efficiency improvements. The audit is free or heavily subsidised, and the findings feed directly into any subsequent grant application.

SEAI Grants for Homes and Rental Properties

For landlords and homeowners, the main SEAI residential programme is Better Energy Homes, which provides grants for:

Attic and cavity wall insulation. Heat pump installation. Solar panels (solar thermal and solar photovoltaic). External and internal wall insulation. Heating controls upgrades. Windows and doors in certain circumstances.

Grant amounts vary by measure and property type but can be substantial - a heat pump installation can attract a grant of 6,500 euro or more. Solar PV panels attract grants of up to 2,400 euro for a standard residential system.

The National Home Energy Upgrade Scheme provides a more comprehensive pathway for whole-home energy upgrades, combining multiple measures with a single project management approach and enhanced grant rates for achieving specific BER ratings.

The Tax Treatment of SEAI Grants for Businesses

How SEAI grants affect your tax position depends on what the grant is funding.

Grants for capital expenditure - equipment, installations, building fabric improvements - must generally be deducted from the cost of the asset before calculating capital allowances. If a business installs a heat pump for 18,000 euro and receives a SEAI grant of 6,500 euro, the allowable cost for capital allowances is 11,500 euro, not 18,000 euro. Capital allowances are then claimed at 12.5% per year on 11,500 euro.

Accelerated capital allowances are available for certain energy-efficient equipment under the Accelerated Capital Allowance (ACA) scheme. Equipment on the SEAI’s technology list qualifies for 100% capital allowances in the year of purchase - the full cost is deductible in year one rather than spread over eight years. This is a significant cash flow advantage for businesses investing in qualifying equipment. The ACA is available even where a SEAI grant has been received - it applies to the net cost after grant.

Grants for revenue expenditure - operational support, energy audits - are taxable income in the period received, reducing the deductible cost of the relevant expenditure.

For a landlord receiving SEAI grants on a rental property, the grant reduces the cost base of any capital improvement, which affects the capital allowance (wear and tear) calculation on the relevant asset. For improvements to the building structure rather than removable assets, the treatment follows the general capital expenditure rules for rental properties.

Solar Panels Specifically

Solar photovoltaic panels for a business are a good illustration of how the combined grant and tax treatment works.

A typical commercial solar PV installation for an SME might cost 30,000 euro before any grant. A SEAI commercial grant might cover 6,000 euro, leaving a net cost of 24,000 euro.

If the installation qualifies for the Accelerated Capital Allowance (solar PV is on the SEAI technology list for ACA purposes), the full 24,000 euro net cost is deductible in year one. For a company paying 12.5% corporation tax, this generates a tax saving of 3,000 euro immediately, on top of the 6,000 euro grant.

The combination of a 6,000 euro grant and 3,000 euro immediate tax relief means the real net cost of the 30,000 euro installation is 21,000 euro in year one - 30% less than the headline cost. Beyond that, the energy savings compound year on year without further capital outlay.

This economics applies across most qualifying energy investments. The combination of SEAI grant and ACA makes the after-tax, after-grant cost of qualifying energy equipment significantly lower than most business owners realise.

How to Apply

All SEAI grant applications are made through seai.ie. The process varies by scheme and project size, but the general steps are:

Check your eligibility and the available grant for your specific measure. Engage a SEAI-registered contractor or energy assessor (required for most domestic and some commercial grants). Get a survey or assessment done before any work begins - works started before the grant application is approved are generally ineligible. Submit the application and receive approval before committing to the work. Complete the work with the registered contractor. Submit the payment claim with evidence of completion.

For larger commercial projects, SEAI has a project management support service and dedicated account management for significant energy projects.

The key practical point: apply before you start the work. Starting installation before your grant application is approved is the most common reason applications are rejected.

Paddy Malone FCA AITI, Principal of Malone & Co. Chartered Accountants, Dundalk

Paddy Malone FCA AITI

Paddy is the principal of Malone & Co. Chartered Accountants in Dundalk. A Fellow of Chartered Accountants Ireland and a Chartered Tax Consultant with the Irish Tax Institute, he has been advising businesses across County Louth and the North-East for over 35 years.