How long does it take to get naturalized following the marriage interview?
Most permanent residents have to wait 5 years after becoming permanent residents to qualify for U.S. citizenship. However, the law gives a break to spouses of U.S. citizens: If you have been married for at least 3 years, and your spouse has been a U.S. citizen for at least 3 years, you are eligible for citizenship 3 years after you become a permanent resident. Actually, you are allowed to apply for naturalization 3 months before the end of your 3 year residence. Form N-400 must be filed in the United States.