These days, an increasing number of families are holding tangi at home to save on food costs, he said.
Others take out loans to avoid the embarrassment of not being able to cover the bill.
Applications to the Maori Land Court to bury loved ones on Maori land cuts out the rapidly rising costs of burial plots, costing about $100 for maintenance of the grave.
Mr Rangiheuea said one of the biggest costs for Maori was bringing relatives home when they passed away overseas.
People should plan for this to ease the burden on their families.
"I would encourage people to take out life insurance cover, especially those who live overseas."
Bringing bodies home can cost between $3000-$5000, he said.
Some banks and credit unions also offer help for families carrying tangi costs. For example, AWHI Credit Union in Rotorua has a "bereavement club" that members can sign up to. If they then die, all other club members contribute $2 each to help their family with funeral or tangi costs.