The law of trusts and estates is generally considered the body of law which governs the management of personal affairs and the disposition of property of an individual in anticipation of the event of such person's incapacity or death, also known as the law of successions in civil law. Its techniques are also used to fulfil the wishes of philanthropic bequests or gifts through the creation, maintenance and supervision of charitable trusts.

In some jurisdictions, such as the United States, it can overlap with the area that has come to be known as elder law that deals not only with estate planning but other issues that face the elderly, such as home care, long term care insurance or social security or disability benefits. There may also be overlap with areas of the law touching on End-of-life issues, not solely for the elderly, but also persons with terminal conditions.

In common law, an estate consisted of the tangible assets of real and personal property which belong to a natural person. The property of the estate must either be bequeathed through a will or transferred through the laws of intestacy if there is no will. A will is the most commonly used legal instrument for the distribution of the property of a deceased person. Before property can be disposed of pursuant to the terms of a will, the will must be submitted to a probate court having jurisdiction of the estate of the deceased. Probate is often considered a relatively lengthy and expensive process, albeit one which may provide greater safeguards with regard to the rights of a deceased person's beneficiaries, though probate often is contested by creditors or disgruntled members of the family of the deceased who feel they have not received their fair share of the deceased's property.