The four rules that catch everyone
- 41% exit tax on gains — not 33% CGT.
- Deemed disposal every 8 years from each purchase. Revenue taxes the unrealised gain at the 8-year anniversary as if you'd sold, even if you haven't. Tax paid at deemed disposal is credited against tax due on actual disposal.
- No €1,270 annual exemption. That's CGT-only.
- Losses can't offset gains — not against other ETFs, not against individual stocks, not anywhere.
What's an "ETF" for this purpose?
The 41% regime applies to Investment Undertakings — specifically:
- EU UCITS ETFs (most popular European-domiciled ETFs)
- EEA non-UCITS funds equivalent to UCITS
- Most Irish-domiciled funds
US-domiciled ETFs (like the Vanguard / iShares funds traded on US exchanges) do not use this regime. They're treated as offshore funds with different rules — generally taxed as income at marginal rate, with their own filing complexities. Most Irish brokers won't even let retail investors buy US ETFs because of the EU PRIIPs KID requirements.
The wealth-drag math
Compare €10,000 invested at 6% annual return, held 20 years, under two regimes:
- Standard CGT path: gain compounds untaxed. Sell at year 20, pay 33% on the full gain. Net CAGR ~4.6%.
- Deemed Disposal path: gain compounds, then 41% paid on the gain at year 8 and year 16. Reset basis each time, then 41% on the final stretch at year 20. Net CAGR ~3.6%.
Over 20 years, that 1pp gap compounds to roughly 30% less wealth for the same investment. The exact number depends on the return assumption, but the gap holds across reasonable inputs.
The Deemed Disposal tracker shows this for your specific tranches.
When the tax is actually due
For deemed-disposal events, you self-assess and pay through Form IT38 by 31 October the following year. There's no payroll withholding — Revenue trusts you to file. The investor is fully responsible for tracking the 8-year clock per tranche.
For real disposals (you sold), the same rules and same deadline.
When ETFs still make sense
Despite the punitive tax, ETFs aren't always wrong:
- Pension wrappers (PRSA, occupational scheme) sidestep the 41% entirely. Inside a pension, ETFs grow gross-of-tax until drawdown. Maximise pension first, then think about taxable accounts.
- Diversification value: a single global ETF beats trying to hand-pick 30 stocks for most people. Behavioural cost of stock-picking can outweigh the tax difference.
- Short to medium horizons (under ~10 years), the difference is smaller because deemed disposal hasn't compounded much yet.
Alternatives to consider
- Individual stocks — stay under CGT (33% with €1,270 exemption). The €1,270 is per person, per year — see how to use it.
- Investment trusts — closed-ended UK-listed funds taxed under CGT, not exit tax. Berkshire Hathaway is sometimes used as a quasi-fund.
- Pension contributions — pre-tax, grows tax-free, taxed only on withdrawal.
- RSUs from your employer — already taxed as income at vest; post-vest they're CGT, not deemed disposal. See the RSU guide.
The 41%-vs-33% gap has been politically debated for a decade. The Department of Finance reviewed the regime in 2024 and 2025 with submissions calling for alignment with CGT — no change has landed yet. Don't make decisions assuming it will.
Next
- Deemed Disposal tracker — project tax across all your tranches
- €1,270 CGT exemption — what it does for individual stocks
- RSUs explained — vest-to-sale tax mechanics