Hi Toshiko Tani and welcome to Just Answer!Are you living in the US? Are you US citizen?
I am a green card holder. i am not a US citizen.
I will be back an hour later. I have to teach now. TOKO
That is Ok - I am working on answer.
According to US-Japan tax treaty -
Pensions paid by, or out of funds to which contributions are made by, Japan, its political subdivisions, or local authorities for services performed for Japan are exempt from U.S. income tax unless the recipient is a resident and citizen of the United States.So as long as you will be a green card holder - that pension will not be taxable for you. You will report that pension on your tax return - from 1040 line 16a - $6000; line 16b - zero - www.irs.gov/pub/irs-pdf/f1040.pdf .However - if you will become naturalized US citizen - the pension from Japan will be included into your taxable income.
I understand. thank you very much.
I am glad to be helpful.Please be sure you accept the answer. Experts are only credited if the answer is accepted.If you need any help or clarification - be sure to came back and I will post it for you.