The 15-year-old spent a week on trial with the Reds in October.
And Slavia chief executive Martin Krob has now revealed there is an agreement for Jaros to join Liverpool at the end of the season.
Liverpool train ahead of West Brom clash Wed, April 12, 2017
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Liverpool have been training ahead of their clash with West Brom this weekend
Liverpool are looking to bolster their academy
He told Czech outlet Aktualne: "The agreement exists.
"Now we are dealing with the details and Jaros will become a Liverpool player in the summer."
Alex Inglethorpe is the Academy director at Liverpool
Jaros is able to join Liverpool despite the club being banned from signing youth-team players for at least a year.
The Premier League handed Liverpool a two-year ban, with the second year suspended, and a £100,000 fine after they were found to have offered "inducements" when attempting to sign a youth player from Stoke.
The ban stops Liverpool from registering an academy player, who has been with a Premier League or lower-league club for the previous 18 months.
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