Determine your state’s cutoff date for valuation of your marital assets. This is usually the date your marriage officially ends, but “officially” means different things in different states. In some jurisdictions, it’s the date you file a complaint for divorce. In others, it may be the date you separate. The court divides your assets according to their value at this exact time. However, if you’re divorcing by marital settlement agreement, the date you choose is up to you.
Address any items that require appraisals first, because it usually takes some time for a professional to assess your property, then to write a report detailing its value. You’ll need appraisals for any real estate you own, as well as assets such as artwork or collectibles. An appraiser determines the "fair market value" of the asset -- what another individual would be willing to pay for it if you sold it as-is.
Contact a certified public accountant to ascertain the value of your retirement benefits. This is an extremely complex undertaking, so you’ll need a professional. When you select an accountant, make sure he's experienced in valuing pensions and retirement benefits specifically for division in a divorce. This involves a “coverture fraction” to determine what portion of the retirement benefits are marital and what portion you earned prior to your marriage or after its official cutoff date.
Establish the value of less significant assets last, because this won’t take you much time at all. You can value your automobiles by consulting a Kelly Blue Book or NADA Guide, then subtract any loan balances from their indicated values. Websites such as eBay and Craigslist can help you establish the value of electronics or furniture. Prices listed are indicative of what a buyer would be willing to spend to acquire your similar item in the same condition. You can value liquid funds in bank or investment accounts by their balances indicated in statements as of your cutoff date.