Oh, god...it's ages ince I've worked in tax, and the unique IDs never used to be that long - I wonder whether they've strted incorporating multiple bits of information into a single reference to 'simplify' things...
...IIRC, there used to be your tax office's reference, your employer's tax office reference - since you as an individual & your employer as an organisation weren't usually dealt with by the same offices, whih used to cause endless confusion - and a unique tax reference as well. I think each of the offices' codes was at least 5 or 6 letters/digits long (which weren't done to exhaustion, I seem to remember they referred to regions & then offices with regions, much as postcodes drill down into levels of detail), and the unique ID was something like 10 or 13 numbers/digits long, even then.
So if they've combined those, that could well lead to, say, 25 digits?
no subject
...IIRC, there used to be your tax office's reference, your employer's tax office reference - since you as an individual & your employer as an organisation weren't usually dealt with by the same offices, whih used to cause endless confusion - and a unique tax reference as well. I think each of the offices' codes was at least 5 or 6 letters/digits long (which weren't done to exhaustion, I seem to remember they referred to regions & then offices with regions, much as postcodes drill down into levels of detail), and the unique ID was something like 10 or 13 numbers/digits long, even then.
So if they've combined those, that could well lead to, say, 25 digits?