I work and pay tax in China. I don't have a W-2 form. How do I file tax return?

[yyeessyy]

As long as I pay tax in China, I don't have to pay tax again in the US, right?

[DoninGA]

Foreign Earned Income is reported on Form 2555.   For tax year 2022, the maximum foreign earned income exclusion is the lesser of the foreign income earned or $112,000 per qualifying person. 

To enter Foreign Earned Income -

Click on Federal Taxes (Personal using Home and Business)
Click on Wages and Income (Personal Income using Home and Business)
Click on I'll choose what I work on (if shown)
Scroll down to Less Common Income
On Foreign Earned Income and Exclusion, click on the start or update button

Or enter foreign income in the Search box located in the upper right of the program screen. Click on Jump to foreign income

[pk]

@yyeessyy , agreeing with @DoninGA ,,  on  the method to exclude your foreign income ( up to a max including additional housing expenses), just wanted to point out that as long you are a US person ( citizen/GreenCard only in this particular case ), you are taxed by the USA on your world income.  Foreign earned income exclusion and/or tax credit / deduction generally helps in ameliorating the effects of double taxation.

Is there more one of us can do for you ?

pk