Both United Kingdom and Ireland sit in Europe, but their tax structures take different paths. On a £65,000 gross, the effective tax burden in Ireland is roughly 1.6% higher than in United Kingdom — driven by differences in National vs PRSI, bracket structure, and personal allowance.
Same nominal gross applied to both tax systems. Currencies aren't FX-converted — compare structures, not purchasing power.
The UK runs a three-band PAYE income tax with a generous £12,570 personal allowance, alongside Class 1 National Insurance contributions of 8% on earnings between the primary threshold and the upper limit, then 2% above. Scotland uses different bands. The personal allowance tapers above £100,000, creating a 60% effective marginal rate in that range.
Ireland has just two income-tax bands (20% and 40%), but layered on top are PRSI (4.1%) and the Universal Social Charge (USC), which adds 0.5–8% depending on income. Tax credits — rather than a personal allowance — drive the effective rate. Married couples can transfer credits and bands.
Pre-calculated breakdowns at common pay levels in United Kingdom — open either side for the full page.
Last updated: 2026. Estimates only — see the disclaimer above.