Use the free home sale net proceeds calculator to estimate your home sale price, total costs, and net proceeds. Navigate the New York real estate selling process with our step-by-step guide.Get expert tips and ensure a smooth transaction today! The cost to sell a house in New York state will vary widely depending on your location, the home's sale price and more. Your annual notice of property value, mailed in January, informs you of the Department of Finance's assessment of your property for the coming tax year. An experienced local agent will know everything about the real estate market in your area and can be a major resource when it comes to selling or buying a home. To complete the sale, both parties will need completed financial documents from the buyer if they are financing the transaction. You must download and complete Form RP5217PDF using Adobe Acrobat. There are several methods for doing so, like checking tax and property records, but the most reliable way is to ask your real estate agent. In most jurisdictions, the transaction amount is a matter of public record.