Top Irish Tax Deductions You Could Be Missing in 2026
Every year, thousands of PAYE workers in Ireland leave money with Revenue that's theirs to claim. Here are the reliefs expats miss most — and how to go back 4 years to grab them.
Rent Tax Credit
€1,000 per year (single), €2,000 (jointly assessed), backdated 4 years for tenants in RTB-registered tenancies.
Medical expenses
20% back on qualifying medical costs — GP visits, prescriptions, physio, some dental. Keep receipts.
Remote Working Relief
30% of utilities apportioned by days worked from home. Small but backdated 4 years.
Tuition fees
Third-level tuition fees on qualifying courses attract 20% relief above a small threshold.
Flat rate expenses
Fixed annual amounts by occupation — nurses, engineers, teachers all have one. Revenue applies them automatically only if it knows your occupation.
Emergency tax
If you started a new job or moved mid-year, there's a decent chance you overpaid. Revenue reconciles automatically only if all the details line up — often they don't.