What is the most commonly missed tax credit?

The Rent Tax Credit and flat-rate (occupation) expenses are the most commonly unclaimed. Both can be backdated 4 years in Revenue MyAccount.

Are tax credits the same as tax reliefs?

No. Credits reduce your tax bill euro for euro. Reliefs (like pension contributions or medical expenses) reduce the income the tax is calculated on, so their value depends on your tax rate.

Irish tax credits you might be missing

Rent Tax Credit

Worth €1,000 (single) or €2,000 (jointly assessed) per year for 2024–2028. If you pay rent on your principal residence to a private landlord, you can claim. Backdate up to four years.

Flat-rate expenses

Occupation-specific deductions: nurses €733, teachers €518, shop assistants €121, and many more. These reduce taxable income, saving tax at your marginal rate.

Remote working relief

If you work from home, claim 30% of your electricity, heating and broadband bills apportioned for the days you worked from home. CentSmart applies the simpler flat-rate WFH credit (€3.20/day) automatically.

Small Benefit Exemption

Your employer can give up to €1,000 in non-cash vouchers per year, fully exempt from IT, USC and PRSI. Common at Christmas. Toggle it on in the calculator to see the boost to net pay.

Medical expenses

Tax relief at 20% on unreimbursed medical expenses (GP, consultant, prescription) and at 40% on qualifying nursing home fees. Claim via MyAccount.