Elder Abuse and Neglect Prevention co-ordinator Heather Campbell, of Whangarei, said she had not seen cases of parents lending money for home loans, but typical cases of elder abuse involved an older person spending a lot of money on a family member.
"Outside people see that as abuse, but when you go into it the older person doesn't mind or doesn't want to report it . . . because it's a family member - but often they are being taken advantage of," she said. "I have seen abuse where the grown-up child may have control of finances, have access online to bank accounts, or they might have their parents' eftpos card."
It was tricky to pin down cases of elder abuse if the older person was not complaining about it, Ms Campbell said.
"At the end of the day there's no law against someone giving their money to someone.
"If you willingly give someone money it becomes such a grey area because there's no deception," she said.