Starting level of Doujutsu at each rank

Eyes
Rinnegan
Level 1 (Life force detection) - Genin
Level 2 (Reconstruction of inanimate objects) -Chuunin
Level 3 (Weak regeneration) - Jounin
Level 4 (Strong life detection and regeneration) - Jounin
v----Must Be Trained----v
Level 5 (Revival technique, strong healing powers, strong explosion, push and pull abilities.) Your chakra will go down three times as fast. The revival can only be used twice in your lifetime. - Jounin
^----Must Be Trained----^

Sharingan
Level 1 (Activation and detection) - Genin
Level 2 (Weak chakra detection and movement) - Chuunin
Level 3 (Strong chakra detection, movement seconds before it happens) - Chuunin
Level 4 (Mangekyo) (Strong genjutsu and detection of Genjutsu) - Jounin
v----Must Be Trained----v
Level 5 (Eternal Mangekyo) (Powerful movement detection, genjutsu and chakra detection with learned abilities) - Jounin
^----Must Be Trained----^

Byakugan
Level 1 (Activation) - Genin
Level 2 (Gentle Fist techniques) - Genin
Level 3 (Strong chakra detection and can move around areas without physical body) - Chuunin
Level 4 (Stronger Gentle Fist techniques) - Chuunin
v----Must Be Trained----v
Level 5 (Strong chakra detection, gentle fist techniques, can see area around you mentally) - Jounin
^----Must Be Trained----^