Kent, who impressed in the Reds' first-team throughout pre-season, was left off of the US tour in order to seal a loan and will join the Championship outfit after they agreed to the newly-instated 75 per-cent clause.
It dictates that Liverpool loanees must play at least three-quarters of games, if fully fit, at their temporary clubs - or else financial punishments will be ensured.
It comes as a result of changes to Football League rules which mean Jürgen Klopp can no longer re-call players at a moment's notice, meaning the club are keen to find the right clubs for their youngsters to continue their progression.
Kent looking to make an impression at Barnsley
19-year-old Kent's move to Barnsley, who won both the Football League trophy and the League One play-offs last season, comes after a spell at Coventry City last term.
After 17 appearances for Tony Mowbray's side, including one goal against the Tykes, the winger was re-called in January by Klopp and made his senior debut for Liverpool in the FA Cup.
The England U20 international described himself as "delighted" to sign for Barnsley and said he's "really looking forward" to "what the season holds" and how he is "going to fit into the team.""
Asked to explain his style and the qualities he will bring to the Barnsley team, he insisted he can bring "a lot of excitement" and "can play on either side of the wing or behind the striker" because he's "really lucky to be gifted with both feet" as well as having "a lot of speed and flair."
Barnsley manager Paul Heckingbottom explained that the club have "continually monitored his [Kent's] progress" since first enquiring about the teenager last summer and said he's "absolutely delighted" to have him as part of the squad for the 2016-17 campaign.
He hailed the "huge impression" that the Reds' youngsters had at Coventry, calling him "fearless" and "one of the most highly-rated youngsters in the country."
"We beat off a number of Championship clubs to secure his signature," he revealed, adding that he was "very grateful" to Klopp and the club for allowing Kent "to continue his development" at Oakwell Stadium.
Oldham-born Kent thrived for the Under-21s in their 4-1 friendly win over Rhyl on Sunday, even taking the captain's armband in the second-half - and his progress will doubt be watched carefully by Klopp and the club's Academy staff.
Awoniyi set to continue progression elsewhere for timebeing
And with Liverpool having recently sanctioned loan moves for goalkeepers Ryan Fulton, Adam Bogdan and Danny Ward too - striker Awoniyi is close to sealing a move to the Eredivisie.
The little-known Nigerian has yet to make an appearance for Liverpool, at any level, since signing for the club last summer after failing to earn a work permit.
He spent last season on loan in Germany's second division for FSV Frankfurt, making 14 senior appearances and scoring one goal.
The Reds see another loan, again to a European club, as the best opportunity for Awoniyi to continue his development and to earn a UK work permit later on down the line.
A number of clubs were said to be interest but NEC appear the club closest to sealing a deal, with the Dutch outfit managed by Peter Hyballa. The German was Borussia Dortmund U19s coach at the same time Klopp was at the club.
Awoniyi, who was in a provisional 35-man Nigeria squad for the Olympic Games in Rio before being cut for the final 18-man selection, is rated highly on Merseyside.
Another whom staff, including Klopp himself, have high hopes for is Brazilian midfielder Allan Rodrigues de Souza - who will spend the season with Hertha Berlin in the Bundesliga.
He was pictured in training with the club earlier this week but the deal has not yet been officially confirmed, although an announcement is expected soon with the teenager yet to gain a UK work permit either.
With more loans likely before the closure of the transfer window - Liverpool are expected to focus on their younger Academy players although the recently re-named Premier League 2 has changed from U21s to U23s.
The new rules allow teams to choose three outfield over-23 players, as well as a goalkeeper, but Liverpool are expected to focus on a more youthful core with Ovie Ejaria, Trent Alexander-Arnold and Ben Woodburn - all of whom impressed in pre-season - likely to help make up the squad.