In New York State, the main irretrievable breakdown of the marriage for at least six months, cruel and inhuman treatment, abandonment for a continuous period of one year or more, imprisonment of one spouse for three or more years after the marriage, adultery, living separately under a judgment of separation for one year, and living separately under a written separation agreement for one year Reasons for Divorce in New York State . These grounds cover both fault-based and no-fault divorces, providing various options for spouses seeking divorce.