Yeah, but €4K is only 32% of €12.5K!
(Yes, I'm being sarcastic... )
(Yes, I'm being sarcastic... )
I understand it now and in my own mind it's a 32% rebate on the foregone immediate income i.e. less than the 40% that was actually deducted.
Of the 12.5K the government is still hanging onto €1k of the tax you'd paid.