The famous Swedish diplomat saved tens of thousands of Hungarian Jews during WW II and mysteriously disappeared in Budapest in 1945 when he was arrested by Soviet officers.
The tax agency published notices in two newspapers requesting that Wallenberg report to Skatteverket's offices in Solna, outside Stockholm, by October 14 at the latest. After that date the agency may legally declare Wallenberg dead.
Surviving family members had asked the Swedish tax office to officially declare him dead in November. At the time family members wrote in statement sent to news agency AFP that a "declaration of death is a way to deal with the trauma we lived through".
Russian officials had said years later he died in a Moscow prison in 1947 from a heart attack. In 2000, a Russian investigation claimed KGB agents shot Wallenberg in 1947, but his surviving relatives have long remained skeptical about those claims.