It depends. The Non PAYE Income €5000 "chargeable person" limit is not individualised for jointly assessed couples. So in the case of a married couple, jointly assessed, the (annual) limit is €5000 not €10000 on the couple represented by one person as the "chargeable person". A tad unfair and likely to be fully individualised once our progressive government becomes aware of it......Thanks @Freelance for that. I had been a tad concerned but I had also forgotten that this 5k is per person so our joint savings can bring us to 10k before hitting threshold (I hope,!)
Separately, per my other point, are small regular savers really all putting their gross deposit interest into Revenue every year when it's not making any difference to their liability?
I've never heard of people doing it, but I'm guilty of not, thinking it was at source so not an issue.