Most fans consider Boruto Episode 18 as the definitive answer because it’s the only one that depicts the actual investiture.
The most common way fans watch Naruto’s inauguration is through , titled "A Day in the Life of the Uzumaki Family." in which episode naruto become hokage
In ( “Naruto Uzumaki!!” ), there is a short scene during the Infinite Tsukuyomi dream sequence where an alternate-reality Naruto becomes Hokage with his parents (Minato and Kushina) alive and proud. This is not canon to the main story. Most fans consider Boruto Episode 18 as the
During the struggle, Himawari awakens her Byakugan and accidentally strikes Naruto’s tenketsu (pressure points), knocking him unconscious just before the ceremony. During the struggle, Himawari awakens her Byakugan and
Because Naruto is out cold, he misses the actual public ceremony. To save face, uses a Transformation Jutsu to disguise himself as Naruto and stands in for him to receive the Hokage title before the village. Consequently, while Naruto holds the office, he technically missed his own crowning moment.
– titled “The Message” – ends with a famous scene where Naruto is seen sitting in the Hokage’s office, wearing the hat, but he is not yet officially inaugurated .