What Expenses Can I Claim to Minimise My Personal Tax Liability in Ireland?

If you’re paying income tax in Ireland, whether as a PAYE employee or a self-employed sole trader, there’s a good chance you’re paying more than you need to. Tax credits, tax reliefs, and allowable expenses can significantly reduce the amount of tax you owe, but only if you know they exist and actually claim them.

This guide covers the most important expenses, credits, and reliefs available to Irish taxpayers, explains how each one works, and helps you build a system for making sure nothing gets missed.

Tax credits, tax reliefs, and allowable expenses: what’s the difference?

Before diving into specifics, it’s worth understanding the three ways to reduce your tax bill in Ireland:

• Tax credits reduce the amount of tax you pay directly, euro for euro. A €2,000 tax credit reduces your tax bill by €2,000.
• Tax reliefs reduce the income on which you’re taxed, or give you relief at a specific rate. For example, medical expenses relief at 20% means a €1,000 expense saves you €200 in tax.
• Allowable expenses (for self-employed individuals) are deducted from your business income before tax is calculated. A €1,000 allowable expense reduces your taxable profit by €1,000, saving tax at your marginal rate.

The strategies available to you depend on whether you’re a PAYE employee, self-employed, or have mixed income. PAYE workers primarily benefit from tax credits and reliefs claimed through Revenue’s myAccount. Self-employed taxpayers can also deduct business expenses against their trading income on their Form 11 tax return.

Tax credits you should check every year

These are the credits that make the biggest difference and are most commonly under-claimed.

Personal and employment credits

• Personal Tax Credit: €2,000 (single) or €4,000 (married/civil partners). Automatic for most taxpayers, but check it’s applied correctly.
• Employee Tax Credit (PAYE): €2,000 for employees. Applied automatically if your employer reports your income correctly.
• Earned Income Tax Credit: €2,000 for self-employed individuals and proprietary directors. This is your equivalent of the PAYE credit.

Family and personal circumstance credits

• Single Person Child Carer Credit: €1,900 plus a €4,000 increase in the standard rate tax band. Available if you’re the primary carer of a qualifying child and are not married or cohabiting.
• Home Carer Tax Credit: Up to €1,950 if your spouse or civil partner cares for a dependent person at home and earns less than €7,200 per year.
• Age Tax Credit: €245 (single) or €490 (married) if you or your spouse are aged 65 or over.
• Incapacitated Child Tax Credit: €3,800 per qualifying child. One of the most valuable credits available and often overlooked.
• Dependent Relative Tax Credit: A smaller credit, but worth claiming if you support a relative who cannot maintain themselves.

How married couples can optimise credits

If you’re married or in a civil partnership, review whether joint or separate assessment gives you a better outcome. Under joint assessment, unused tax credits and standard rate band can be transferred between spouses. If one partner earns significantly less, this can save hundreds or thousands per year.

Medical expenses you can claim

Medical expenses relief is claimed at 20% (the standard rate). There’s no minimum threshold; you can claim on any qualifying amount. Expenses you can claim back include:

• GP and consultant fees
• Prescribed medicines and drugs (the cost above what the Drugs Payment Scheme covers)
• Hospital charges not covered by insurance
• Physiotherapy, speech therapy, and occupational therapy fees
• Dental expenses for non-routine treatment (crowns, orthodontics, surgical extractions)
• Maternity care costs
• IVF and fertility treatment costs

Nursing home expenses may qualify for relief at the higher rate of 40% in certain circumstances, making this one of the most valuable claims for families with elderly relatives in care.

Health insurance: Tax relief on health insurance premiums is usually given at source by your insurer, but check your policy to make sure you’re receiving it. If you pay for a dependant’s cover, verify the relief is correctly applied.

Keep all receipts and statements. You can claim for the current year and the previous four tax years through Revenue’s myAccount. For a family with regular medical expenses, the cumulative refund can be significant.

Rent Tax Credit

If you rent privately, the rent tax credit is worth up to €1,000 per year (single) or €2,000 (married/civil partners). It’s calculated at 20% of rent paid, capped at these amounts. Available through 2028, this credit also applies to parents paying rent for student children in approved accommodation.

Claim through myAccount. You’ll need your landlord’s details and the amounts paid. This is relatively new (introduced in 2022) and many tenants still aren’t claiming it.

Education and tuition fees

Tax relief at 20% is available on qualifying tuition fees for approved undergraduate and postgraduate courses. The first €3,000 (full-time) or €1,500 (part-time) per individual is disregarded, so the relief applies to fees above these thresholds.

For a family with a child in a third-level institution paying €8,000 in qualifying fees, the relief is 20% of €5,000 = €1,000 in tax savings. If you have multiple children in education, the relief applies per student.

Mortgage Interest Tax Credit

A temporary credit remains in 2026 for homeowners with a mortgage balance of €80,000 to €500,000 at the end of 2022. The credit is 20% of the increase in mortgage interest compared to 2022, up to a maximum of €625 per property. If your mortgage rate increased significantly since 2022, this could be worth claiming.

Expenses for self-employed and sole traders

If you’re self-employed, allowable business expenses are deducted from your trading income before tax is calculated. This makes them more valuable than credits for higher-rate taxpayers, because the deduction saves tax at your marginal rate (up to 40% plus USC and PRSI).

Common allowable business expenses

• Office and premises costs: Rent, utilities, insurance, cleaning, maintenance
• Travel and motor expenses: Business mileage (at civil service rates or actual costs), parking, tolls, public transport for business purposes
• Professional fees: Accountant, solicitor, insurance broker fees that are directly related to the business
• Marketing and advertising: Website costs, social media advertising, print materials, networking event fees
• Telephone and internet: Business proportion of phone and broadband costs
• Stationery, equipment, and supplies: Office supplies, tools, small equipment
• Staff costs: Wages, employer PRSI, pension contributions for employees
• Bad debts: Debts that are genuinely irrecoverable can be written off against income
• Training and CPD: Courses and qualifications directly related to your current business activity

Working from home

If you work from home (whether self-employed or a remote PAYE worker), you can claim a proportion of household costs. For self-employed individuals, calculate the business proportion of rent/mortgage interest, heating, electricity, and broadband based on the area and time used for work. Revenue accepts reasonable apportionments supported by receipts.

PAYE employees working from home can claim the e-working deduction of €3.20 per day worked from home, or claim actual vouched expenses if higher.

Capital allowances

If you purchase equipment, machinery, computers, or vehicles for your business, you can claim capital allowances (wear and tear). The standard rate is 12.5% per year over eight years. For certain energy-efficient equipment, accelerated allowances may be available.

Pension contributions

Contributions to an approved pension scheme are deductible against your income, up to age-related limits (from 15% of net relevant earnings at age under 30 to 40% at age 60 and over). For a self-employed person on a marginal tax rate of 40%, a €10,000 pension contribution saves approximately €4,000 in income tax alone, plus savings on USC and PRSI. Pensions are one of the most tax-efficient ways to reduce your personal tax liability.

Record-keeping: the system that makes claims possible

You can only claim what you can prove. Revenue requires receipts, invoices, and records to support expense claims. Build a simple system:

• Use an app or folder to capture receipts as they occur (Xero, Dext, or even a dedicated phone folder)
• Categorise expenses monthly, not at year-end
• Keep mileage logs if claiming motor expenses
• Retain medical receipts and statements by tax year
• Hold all records for at least six years (Revenue’s retention requirement)

Frequently asked questions

Can I claim expenses if I’m a PAYE employee?

Yes, but your options are more limited than for self-employed individuals. PAYE workers can claim tax credits (personal, rent, medical, etc.) and certain employment-related expenses (flat rate expenses for specific occupations, e-working costs, professional subscriptions required for your role). You cannot deduct general business expenses against your employment income.

How far back can I claim?

You can claim tax credits and reliefs for the current year and the previous four tax years. If you haven’t been claiming medical expenses or the rent credit, you could be owed a substantial refund. Submit claims through myAccount or by amending your Form 11.

What if I have both employment and self-employment income?

You claim PAYE credits against your employment income and business expenses against your self-employment income. Both are declared on your Form 11. An accountant can help ensure the allocation is optimal.

How do I know if an expense is “allowable”?

The general rule is that an expense must be “wholly and exclusively” incurred for the purposes of your trade or profession. Personal expenses are not deductible. Expenses with a dual purpose (e.g., a phone used for business and personal calls) can be claimed on a proportional basis.

Need help reviewing your tax position?

Most taxpayers leave money on the table simply because they don’t know what they can claim. At Kinore, we review our clients’ tax positions annually to ensure every credit, relief, and allowable deduction is captured. Whether you’re a PAYE employee looking for a refund or a sole trader wanting to minimise your tax bill, our team can help.

Book a consultation and let’s make sure you’re not paying more tax than you need to.

The information provided in this article is for general guidance and informational purposes only. It does not constitute professional accounting, tax, or financial advice, and should not be relied upon as a substitute for advice tailored to your specific circumstances. While we take care to ensure the content is accurate and up to date at the time of publication, legislation, tax rates, thresholds, and compliance requirements in Ireland can change.