美國藉香港人回流香港工作如何報稅?

If you are out of the U.S. for more than a year, you will have the allowance for your overseas income. Last year or 2007, if you were not in the U.S. of more than 330 days, you are able to claim for the allowance of your salary income. Still you need to file out the Form 1040 together with Form 2555 Foreign Earned Income to the IRS. I remember there are a couple of U.S. tax accountant to prepare the forms for the expatriates. You can find the advertisement in the newspaper of South China Morning Post. Good luck.

If your adjusted gross income was $54,000 or less in 2007, you can use Free File to prepare and e-file your taxes online.
http://www.irs.gov/individuals/index.html