Are old stamps still valid

[8760976543]

Howdy,
I've some old Christmas stamps from 2020 & 2021 and wondering if they're still valid to use or not?

Does anyone know if I can still use them?

[CelticRambler]

Generally yes, they're still valid, but are they the kind with no specified value on them? If so, you'd need to check with An Post as to whether their current nominal value is whatever was the cost of posting a card in 20/21 and add the extra cents to make it up to today's price for whatever you're sending, or do they still count as "good for one card" but are not really meant for pick-n-mixing on larger packages.

[8760976543]

Ah I'll prob just stick two or three on the envelope to be sure. Need to get rid of them anyways