His victory also returns the trophy to the region for the first time since South Otago sheep farmer Logan Wallace won in 2018.
The seven grand finalists from across the country went head-to-head through a demanding programme of challenges, including exams, interviews, practical modules and public speaking, all designed to test the breadth of skills required in modern agriculture.
Heading into the agri-knowledge quiz, Slee was sitting in third place behind Cam Clayton and Jack Taggart.
A dominant buzzer-round performance saw him surge up the leaderboard and claim the national title, mirroring a comeback his father Richard made during his own winning campaign in 1999.
In the end, runner-up Taggart from Aorangi missed out on the title by 10 points, and Clayton from Waikato Bay of Plenty finished third.
Despite the distance from Southland to New Plymouth, Slee had a support crew more than 60 strong cheering him on throughout the grand final weekend – support he was quick to acknowledge on stage.
“I want to thank everyone who helped along the journey, all the sponsors, organisers and especially my family and partner Genevieve,” he said.
In addition to taking home the coveted title, Slee also claimed top honours in agri-business and the agri-knowledge challenge, taking his total prize haul to more than $90,000.
Looking ahead, Slee said the win won’t change his immediate plans too much.
“It’s straight back to the farm, we’ve got calving to do.”
While the title brings new opportunities, Slee said he was happiest doing what he loves.
“I love being out on the land with the cows and sheep, so hopefully I can just keep doing that.”
Tom Slee takes part in the practical day at the 2026 Young Farmer of the Year grand final.
New Zealand Young Farmers chief executive Cheyne Gillooly said Slee impressed judges throughout the competition with his broad skillset, leadership qualities and commitment to the food and fibre sector.
“It’s incredibly exciting to see the title go to Tom, someone who is not only an exceptional farmer, but also a strong ambassador for the next generation of people working in the sector.”
Gillooly said the standard this year was high and that each finalist should be proud of what they’d achieved.
“These young farmers represent the very best of our sector, and the talent, leadership and commitment they’ve shown this weekend gives me a lot of confidence in the future.”
She also acknowledged the massive contribution of those working behind the scenes who make the competition possible.
“It’s the people behind the scenes, our volunteers, supporters and sponsors, who make this competition what it is. We’re hugely appreciative of everything they give to make it happen.”