Like I said, you will easily earn back those tax/rental money in the future. On the grand scheme of things that 15-20% is probably like at most 1-2k difference a month. If you work hard and do well overseas I like to think that it will open more doors for better career opportunities/remuneration. It is ok to give up on money/savings for the first few years of your career if your family don't need you to contribute. When you're young and single, that's the time to take risk and opportunities. When you're married with kids and have good job offer overseas, thats a whole new story. Life isn't always about money. Read this(
https://forums.salary.sg/income-jobs/...html#post78609). Western culture and environment is way different than Singaproe.
20-30s = got time and energy but no money.
40s = got money and energy but no time
50s+ = got money and time but energy