Regarding income tax in Austria

I am an software engineer who is planning to migrate to Austria probably to Vienna. A software engineer's salary in Austria with an experience of 3 years or 4 years is around €50,000 .
But after searching for income tax in Austria I got to know that, if the annual income is between    
€31 000 – €60 000 tax rate is 42%.
My question is this annual salary is after the deduction of the tax or the tax amount will be deducted from the annual salary ?

If you find a job advertised you normally have to take taxes and insurance from that to get the amount you take home. In Austria its worth remembering that its a 14 month year unlike other countries where is it is 12 months.

Can you provide some details about this "14 months" thing? Or any online sources that can help.
Thanks!

I have 2 links for you.....

1) https://www.virtualvienna.net/working-i … /salaries/

2) http://www.migration.gv.at/en/living-an … uneration/

I hope these will be of help.

Hello guys!

My girlfriend and I want to move to Austria in a couple of months and maybe you can help us with some answers :) I googled, but I don't speak German, so I couldn't find the complete answers.
We're freelancers, I'm a web dev and she's a graphics designer. What taxes do we have to pay (social, health, income, etc) ? Is there an online calculator for that?

Thank you!