Tax practitioners argue, however, that to say lease inducement payments are "typically" deductible to the landlord acknowledges that they are not necessarily deductible.
Mike Shaw of Olivershaw said if the owner of a portfolio of commercial properties regularly made such payments in the course of managing it they would be deductible.
"But let's say, to take a real example, you have one building and one tenant and you pay the equivalent of two years' rent in cash to secure a long-term lease agreement. I would doubt that would be a deductible item to the landlord: it's one-off, it's major and it's to get a real asset, the long-term rental stream."
If the Government is going to legislate to make such such payments taxable to the recipient, it should also legislate to ensure they are deductible to the landlord making the payment, Shaw says.
Practitioners also point out the asymmetry when a tenant pays to terminate a lease early, but in that case it advantages revenue. Such "break fees" are not deductible by the tenant, but are taxable income to the landlord.
Chapman Tripp's Casey Plunket objects to the Government's intention of legislating to make the changes retrospective, with effect from last Thursday when they were announced by Revenue Minister Peter Dunne.
The capital nature of lease inducement payments has been settled law since the late 1990s. The Government is free to override that through legislation, but Plunket contends giving effect to an unheralded law change from the date of the announcement is terrible process and constitutionally odious.
"Changes to legislation only have effect when Parliament passes an amendment. Until then, taxpayers are entitled to rely on the law as it's written in the books."