The Limerick man has been unable to successfully relaunch his riding career in the saddle after he made an amazing return to the track following life-threatening head injuries in a fall at Perth in July 2013.
He will, though, continue riding for the time being, as well as being assistant trainer to Newland, who won the Crabbie’s Grand National at Aintree with Pineau De Re in 2014.
Previously based with Phil Kirby in North Yorkshire, Toomey will join the Newland team in Worcester on February 1 after having left the David Pipe stable, where he had been based since August.
Toomey, who has not ridden a winner since his return to the saddle last July, said: “I had hoped to get going a bit more but it’s been hard.
“I’m starting off as assistant trainer there and will remain riding for a bit longer. He doesn’t have many horses but what he does have are decent.”