How much income do you need to be happy?

My question in return is what would be the trade off?

If I have to work 2x harder for 2x the money then it will not be worth it at all.

There are people who are earning $300k per year and still slogging harder for more money to maintain their lifestyle.

There are also people who are earning $5k per month but am extremely happy with what they have because they are living without any stress. :)

It really depends on the individual. For some, happiness stems from relationships and well-being and therefore money or income does not play a very big part. For others, happiness comes from material goods and experience and this often requires money in order to be achieved.

To each his own. Be happy with what you have.