Sometimes when a plaintiff settles a case for a large sum of money, the defendant, the plaintiff's attorney, or a financial planner consulted in association with the settlement, will propose paying the settlement in installments over time rather than in a single lump sum. When a settlement is paid in this manner it is called a "structured settlement". Often the structured settlement will be created through the purchase of one or more annuities, which guarantee the future payments.
A structured settlement can provide for payment in pretty much any schedule the parties choose. For example, the settlement may be paid in annual installments over a number of years, or it may be paid in periodic lump sums every few years.
A structured settlement can protect a plaintiff from having settlement funds dissipated, when they are necessary to pay for future care or needs. Sometimes a structured settlement can help protect a plaintiff from himself - some people simply aren't good with money, or can't say no to relatives who want to "share the wealth", and even a large settlement can be rapidly exhausted.