[fuzzix]

Ireland has a Pay As You Earn system which is usually administered by your employer. Mostly, you do nothing and the money is paid.

Every 5 years, file a P21 to check you're not due any refunds.

If you're self-employed, it's a bloody nightmare.

[sjtrny]

5 years seems like a long time to wait for a tax refund. Especially tax refunds totalling $2500+ are quite common here in Australia. We have a PAYG system too.

[fuzzix]

You don't have to wait 5 years, you can request them yearly. They just go back 5 years (I think).