Monthly salary and taxes

Hi,
i earn 175.000 yen monthly in Japan and i am wondering how much i have to pay in taxes??
How much it needs to earn in Osaka to live decent??Actually my payment does not make me so comfortable here..
thank you in advance

ask your company if you work in Japan. They can give you all exact details.

http://www.htm.co.jp/calculators-monthly-payroll-japan.htm

I used this ages ago (simple google search), but these days my accountant works it out for me and my staff. Looking at the results it doesn't look quite correct for my actual deductions - it might be out of date in places, but it will give a reasonable indication.