With only four months left in the current financial year, just 12 of the country's 20 district health boards have had their financial plans signed off by Health Minister David Clark.
The situation is adding to financial uncertainty for the cash-strapped DHBs, according to the National Party, which has called on Clark to come clean on the state of DHB finances.
All DHBs have submitted their 2018/19 annual plans for approval but the Ministry of Health has confirmed only 12 have been approved.
National's health spokesman Michael Woodhouse said that more than a year after Clark pledged to rein in deficits, the DHBs were in a weaker financial position.
"Eight months into the latest fiscal year Dr Clark has yet to announce the approval of a single annual plan and he has stalled on releasing any financial details for the DHBs," Woodhouse said.