You can apply 4 years 9 months after the effective date on your green card.
The information offered is general in nature and not meant to be relied upon as legal advice. Please consult an attorney prior to making legal decisions. Visit us at www.tunitskylaw.com. Contact us at 713.335.5505 or email at email@example.com. Veronica Tunitsky offers in-person, as well as telephone and email consultations.
You can send in your N-400 application within 90 days (or 3 months) of the fifth anniversary of your permanent residence. The exact date is on your Permanent Resident Card. (Be careful, if it is even one day early, USCIS will bounce it back to you and you will have to send it in again).
There is much more to applying for an immigration benefit than completing forms. Unless you have training in immigration law, you are likely not even aware of all the potential pitfalls. An immigration lawyer can protect your interests and prevent you from jeopardizing the ability of anyone to eventually become a permanent resident or a U.S. citizen. Some mistakes are reversible, while some are not. Do yourself a favor and consult a professional.
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Dean P. Murray
The Murray Law Firm
560 Sylvan Avenue
Englewood Cliffs, NJ 07632
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This response is general in nature and cannot be construed as legal advice, given that not enough facts are known. Any comments offered on Avvo are of a general nature only, and are not meant to create an attorney-client relationship. If you would like additional information based on this response, please contact my office at 510 657 7665 or 415 902 0832 to schedule a consultation.