A former senior Anglican priest has been charged with the alleged sexual assault of a then 15-year-old boy in 1991.

Following a referral from the Royal Commission into Institutional Responses to Child Sexual Abuse to Newcastle Police on the matter in 2016, Strike Force Arinya was formed to investigate the allegations.

Investigations led strike force officers to a Kotara home where they arrested a 75-year-old man just before 8:30am.

He was taken to Waratah Police Station and charged with four counts of aggravated sexual assault and aggravated indecent assault.

He was granted conditional bail and fronts Newcastle Local Court on December 7.