I used to work and live in NYC.
I got a verbal job offer in Shanghai, China and doing salary negotiation.
They asked my latest monthly net salary (after tax), and said they will set my salary based on that. But I think that's unfair because living in NYC (high city tax) as a single I paid tax more than other people who live in New jersey or married/or have kids. We all pay different amount of tax depends on the situation and area, so even though the annual salary amount is same, each one will get different amount of monthly salary since tax differences.
Since I pay a lot of tax so my net salary is low. I think net salary would not be the standard for set my new salary ranges.
It's so hard to explain this complicated US TAX system to people in China where does not have the same tax system.
Is there any way I can explain well and convince them?