In 2019 there were significant tax changes in New Zealand for property investors.  These changes could greatly effect your tax returns.  It may mean if you usually get a tax refund from a rental loss on your investment;  don't necessarily expect it this year.  Avoid the shock; listen to Tony Thorne an expert property accountant as he explains ring fencing... and I'll give you a tip it's got nothing to do with sheep....tune in and find out from him what it is and how it works.  
This is one experts opinion so make sure you do  your own due diligence and get your own advice about your own circumstances..