Usually tax at source is 25%, I was under the impression this was the same everywhere. Per diems are tax free in some countries.
To be clear: if you are interested in an easy job and a quick upgrade then you'll be wrong here. 3 to 4 flights on many of your duty-days throughout the year, quite a few years on the right side. No overtaking career-wise, we are going back to 100% seniority. Some more changes coming up in the next 12 months, I'd say.