The short answer is no. The long answer is depends but is probable if the property is marital. If the law treats your property as your separate property, then you spouse is not entitled to any part of it. That means, usually, you keep the property that you brought with you into the marriage. Usually, you keep your inheritance. Usually, you keep the assets in your trust that pre-existed the marriage. Usually, you keep gifts you received from anyone, including your spouse. The devil is always in the details, like in whose name is the property titled, but those are the general rules. Property acquired during the marriage is presumed marital property. So if you are the spouse that is solely earning or mostly earning work related household income of your marriage, and you acquire property with those funds, the law may treat the property as marital. Marital property is subject to a fair division. That may be 50% or 40% or 30% or 60% or any other ratio depending upon the application of statutory factors, but is usually based upon fairness. The most common fairness issue arises from a recent affair, history of serial affairs, disability of a spouse, the list goes on.