The Council of Trade Unions says landlords will get $3 billion in tax cuts thanks to National and ACT's coalition agreement.
That's about $1 billion more than the National Party fiscal plan outlined before the election.
The Coalition agreement with ACT says the parties would "restore mortgage interest deductibility for rental properties with a 60 percent deduction in 2023/24, 80 percent the year after, and 100 percent in 2025/26."
Council of Trade Unions' economist and director of policy Craig Renney spoke to Corin Dann.
We invited Finance Minister Nicola Willis on to the programme to discuss the CTU's figures, but she declined.