A reduced playing budget at the struggling mid-Wales outfit signals the return of 25-year-old former Manchester City trainee Harris to local rivals Newtown after a five year absence, which has seen stints at Guilsfield and The New Saints, prior to a successful link-up with Welshpool in 2006.
Manager Huw Griffiths confirmed Harris will bid farewell to the club after the New Year’s Day derby clash at TNS.
"Perhaps it’s time for Richie to move and he leaves with the best wishes of everyone at the club," he said.
"There is no animosity and we thank Richie for his many years of loyal service."
"We spoke in the summer and with the current budget it was accepted he should move to a new club if he could agree terms.
"We have negotiated with Newtown and he will complete his transfer after the New Year’s Day fixture."
Meanwhile, the financial situation has forced further hardship on Griffiths, who saw goalkeeper Jack Cudworth move to Rhyl and has now lost assistant Timmy Edwards this week.
"It is with a heavy heart the club bids farewell to Timmy," added Griffiths. "He is at the stage of his career that he wants to be an assistant, but unfortunately our reduced budget meant we could not offer him what he needed."