The examples and perspective in this article deal primarily with Western culture and do not represent a worldwide view of the subject. Please improve this article and discuss the issue on the talk page.(November 2013)
A person may be legally declared dead (declared death in absentia or legal presumption of death) despite the absence of direct proof of the person's death, such as the finding of remains (e.g., a corpse or skeleton) attributable to that person. Such a declaration is typically made when a person has been missing for an extended period of time and in the absence of any evidence that the person is still alive – or after a much shorter period but where the circumstances surrounding a person's disappearance overwhelmingly support the belief that the person has died (e.g., an airplane crash).
A declaration that a person is dead resembles other forms of "preventive adjudication", such as the declaratory judgment. Different jurisdictions have different legal standards for obtaining such a declaration and in some jurisdictions a legal presumption of death may arise after a person has been missing under certain circumstances and a certain amount of time.
If there is not sufficient evidence that death has taken place, it may take somewhat longer, as simple absence does not necessarily prove death. The requirements for declaring an individual legally dead may vary depending on numerous details including the following:
The jurisdiction the individual lived in before death
The jurisdiction where they are presumed to have died
The balance of probabilities that make it more likely than not that the individual is dead
Most countries have a set period of time (seven years in many common law jurisdictions) after which an individual is presumed dead if there is no evidence to the contrary. However, if the missing individual is the owner of a significant estate, the court may delay ordering the issuing of a death certificate if there has been no real effort to locate the missing person. If the death is thought to have taken place in international waters or in a location without a centralized and reliable police force or vital statistics registration system, other laws may apply.
English law generally assumes a person is dead if, after seven years:
There has been no evidence that they still live.
The people most likely to have heard from them have had no contact.
Inquiries made of that person have had no success.
This is a rebuttable presumption at common law—if the person subsequently appears, the law no longer considers them dead.
Otherwise, courts may grant leave to applicants to swear that a person is dead (within or after the seven-year period). For example, an executor may make such an application so they can be granted probate for the will. This kind of application would only be made sooner than seven years where death is probable, but not definitive (such as an unrecovered plane crash at sea), following an inquest (see below). Such an application is specific to the court where it is made—thus separate applications must be made at a coroner's inquest, for proceedings under the Matrimonial Causes and Civil Partnership Acts (for remarriage), for probate, and under the Social Security Act.
These processes were not considered satisfactory, and so in February – March 2013, the Presumption of Death Act 2013 was passed to simplify this process. The new act, which is based on the Presumption of Death (Scotland) Act 1977, allows applying to the High Court to declare a person presumed dead. This declaration is conclusive and cannot be appealed. It is recorded on a new Register of Presumed Deaths, and has the same effect as a registration of death. Death is taken to occur on (a) the last day that they could have been alive (if the court is satisfied that they are dead), or (b) the day seven years after the date they were last seen (if death is presumed by the elapse of time).
In England and Wales, if the authorities believe there should be an inquest, the local coroner files a report. This may be done to help a family receive a death certificate that may bring some closure. An inquest strives to bring any suspicious circumstances to light. The coroner then applies to the Secretary of State for Justice, under the Coroners Act 1988 section 15, for an inquest with no body. The seven years rule only applies in the High Court of Justice on the settlement of an estate. According to a spokesman for the Ministry of Justice, the number of requests received each year is fewer than ten, but few of these are refused. Without a body, an inquest relies mostly on evidence provided by the police, and whether senior officers believe the missing person is dead. One notable person presumed dead under the Act is the 7th Earl of Lucan (Lord Lucan), who was last seen alive in 1974 (although there have been numerous alleged sightings since that time), and whose death certificate was issued in February 2016. 
The incidence of presumed death in England and Wales is considered low - in September 2011, it was estimated that only 1% of the 200,000 missing persons each year remained unaccounted for after 12 months, with a cumulative total of 5,500 missing persons by September 2011.
In Scotland, legal aspects of death in absentia are outlined in the Presumption of Death (Scotland) Act 1977. If a person lived in Scotland on the date they were last known to be alive, authorities can use this act to declare the person legally dead after the standard period of seven years.
It takes 20 years in Italy to declare a missing person dead. After ten years from somebody's disappearance, a motion to declare the person legally dead can be filed in a court of law. After that, another ten years must pass before the person can eventually be declared legally dead.
The law calls people who disappear missing or absent. Several criteria affect declaring someone dead by assumption:
A person's being missing from their home or usual residence for, typically, seven years (the period varies from state to state)
Such absences being continuous and without explanation
Such absences being accompanied by a lack of long-distance communication with those most likely to hear from them
Diligent but unsuccessful search for that person and inquiry into their whereabouts.
Professor Jeanne Carriere, author of “The Rights of the Living Dead: Absent Persons in Civil Law” (published in the Louisiana Law Review), stated that as of 1990, the number of such cases in the United States was estimated at between 60,000 and 100,000. Often the missing person's bank accounts are checked for activity, and possible sightings investigated.
According to Edgar Sentell, a retired senior vice-president and general counsel of Southern Farm Bureau Life Insurance Company, almost all states recognize the presumption of death, by statute or judicial recognition of the common law rule. Some states have amended their statutes to reduce the seven-year period to five consecutive years missing, and some, such as Minnesota and Georgia, have reduced the period to four years.
If someone disappears, those interested can file a petition to have them declared legally dead. They must prove by the criteria above that the person is in fact dead. There are constitutional limitations to these procedures: The presumption must arise only after a reasonable amount of time has elapsed. The absent person must be notified. Courts permit notifying claimants by publication. Adequate safeguards concerning property provisions must be made in the case that an absent person shows up.
Some states require those who receive the missing person's assets to return them if the person turned out to be alive. If a person is declared dead when only missing, their estate is distributed as if they were dead. In some cases, the presumption of death can be rebutted. According to Sentell, courts will consider evidence that the absent person was a fugitive from justice, had money troubles, had a bad relationship, or had no family ties or connection to a community as reasons not to presume death.
A person can be declared legally dead after they are exposed to "imminent peril" and fail to return—as in a plane crash, as portrayed in the movie Cast Away. In these cases courts generally assume the person was killed, even though the usual waiting time to declare someone dead has not elapsed. Sentell also says, “The element of peril accelerates the presumption of death.” This rule was enacted after the attack on the World Trade Center, so that authorities could release death certificates. Although people presumed dead sometimes turn up alive, it is not as common as it used to be. In one case where this occurred, a man named John Burney disappeared in 1976 while having financial problems, and later reappeared in December 1982. His company and wife had already received the death benefits—so, on returning, the life insurance company sued him, his wife, and his company. In the end, the court ruled Burney's actions fraudulent.
Ghazali Shafie, Malaysian politician, survived an aeroplane crash in which he was the pilot. His bodyguard and co-pilot were killed. There had been reports (for example in the New York Times) that Ghazali had been killed in the crash. A coroner later blamed the accident on what the coroner found to be Ghazali's negligence.
Ishinosuke Uwano, former soldier of the Japanese Imperial Army, declared dead in 2000 yet presented himself as alive and living in Ukraine to the Japanese government in 2006.