Maybe, even if, it can change at anytime everywhere, especially where the underlying tone is as socialist as its in Portugal.Do you think they will do that with the 'tax-free if you hodl for >1 year' rule also? I confirmed with a lawyer that that is still tax-free.
We are pass the stage you can have any forward guidance or rule of law reliably. Changes are frequent and ought to be expected.
Its quite clear why too because as long as the current trend of underlying inflation continues (ie making most poor and uneasy and a selected few very rich), its very well anchored in political decisions doing so being supported by a big voter base.