List your business expenses, categorise them, and see exactly what is deductible for Irish Corporation Tax. Revenue rule applied per category.
| Category | Net Amount (€, excl. VAT) | VAT Rate | Remove |
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Revenue allows deductions for expenses that are wholly and exclusively incurred for the purpose of the trade. This is the core test: the expense must have no personal element and must be directly connected to the business activity.
Yes, but only the business-use proportion. Revenue allows a deduction for the business portion of home running costs (utilities, broadband, light and heat) based on the percentage of the home used exclusively for business. You cannot claim mortgage interest or rent as a business expense unless you have a formal commercial arrangement. Keep records of the calculation basis.
No. Business entertainment — including client meals, drinks, corporate hospitality, and social events — is expressly disallowed by Section 840 TCA 1997. This applies regardless of the business purpose of the meeting. The only exception is subsistence for the business owner or employee while away on business travel.