Whether the reason has to be proven
New York allows divorce without proving fault, so most spouses do not need to establish the gambling itself to end the marriage. Where gambling matters more is in the financial part of the case. When one spouse spent marital funds on gambling, the court can consider wasteful dissipation of assets in dividing property, and debts run up for gambling may be assigned to the spouse who incurred them rather than shared. Results turn on the evidence and on whether the other spouse knew about or took part in the spending. If there are children, gambling usually bears on custody through its effect on care, safety, and stability rather than as a mark against a parent on its own.
Following the money
Bank and card statements are the starting point, showing withdrawals near casinos, transfers to betting platforms, and cash advances. Casinos and licensed online sportsbooks keep player account histories, gambling activity statements, and credit records that can often be obtained through discovery or a subpoena. Gather what you lawfully have access to, such as joint account statements and joint tax returns, which may report gambling winnings. Check your own credit report for accounts or loans you did not know about. Do not log into your spouse's betting accounts or private email, because that can create problems of its own; your lawyer can obtain the records through the case.
Protecting what remains
Once a divorce action starts in New York, automatic orders generally restrict both spouses from moving or spending marital assets outside the usual course, which can help limit further losses. Before that point, or if the spending continues anyway, a court can be asked for temporary relief over accounts and bills. Talk with us before closing joint cards or emptying shared accounts, because unilateral moves can be held against you even when they are meant to protect the family. A first meeting covers the timeline of losses, the records that exist, and the interim steps that are realistic. If your spouse is in treatment or recovery, that can shape how parenting and payment terms are structured, and support groups for families affected by gambling may also be worth contacting.