Tourism New Zealand chief executive Stephen England-Hall said although there are current uncertainties that will dictate whether recovery takes one year or three, the modelling shows demand back at 2019 levels by December 2022, assuming unconstrained supply.
"If we have visibility of these variables, we can take action to influence them to have positive outcomes for the country's economic recovery, like the work we are doing to encourage domestic tourism."
The latest Ministry of Business Innovation and Employment domestic visitor spend data from across New Zealand shows that Kiwis are supporting New Zealand's economic recovery by exploring their own country and doing something new.
"Although August domestic visitor spend remained flat compared with last year, given Aucklanders were unable to travel for a large part of the month, it is actually is an incredibly encouraging result."
Domestic visitation in the July school holiday period grew across all regions, in some cases by up to 50 per cent compared to the previous year, and the September school holidays will likely see a similar increase, England-Hall said.
Pre-Covid, domestic tourism accounted for 60 per cent of tourism's $40.9b contribution to the New Zealand economy. New Zealanders previously spent $9b on overseas travel per year.
"We're working hard to encourage domestic tourism and capturing this spend will be critical to the sector's recovery," England-Hall said.
Before the pandemic, Australia made up the biggest number of visitors to New Zealand and spent more than $2.7b a year, half of that by holidaymakers.
The modelling drew on work by Treasury, the Reserve Bank and Westpac.