Fire and Emergency New Zealand is mainly funded by a levy on contracts of insurance where property is insured against the risk of fire.

"Fire and Emergency New Zealand is mainly funded by a levy on
contracts of insurance where property is insured against the risk of
fire."

from https://fireandemergency.nz/about-us/about-the-levy/

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iirc their 2021 annual report said that 95% of their funding comes
from the Fire Levy

so they truly have a nationalized fire service - and no one ever sees
a "tax bill" for it

"Fire and Emergency New Zealand" is the nationwide FD - in 2017 they
merged all the rural and city fire stations - now there is just 1 fire
chief for the entire country - [ except for industrial, forestry, and
military sites - and the forest fire engines seem to be primarily
operated by private forestry firms (which might be equivalent to out
national forests - not sure who funds them actually - they might be
funded by timber sales) ]