How Long Can You Stay Out of US on Green Card?
Ideally, less than 6 months, but you can stay up to 1 year
Green Card holders are allowed to travel outside the United States without having it affect their lawful permanent resident status. The travel is limited to 1 year because a longer stay can be used against the permanent resident as proof that he or she did not intend to make the U.S. his or her permanent home. This will put their permanent resident status in jeopardy.
So coming back within 1 year is the rule. However, it is ideal to not leave the country for a period longer than 6 months. If a permanent resident is planning to become a citizen as soon as possible, breaking continuous residence is not a good idea. Staying away for longer than 6 months breaks continuous residence.
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