Families on tight budgets could come under even more pressure if the Official Cash Rate rises again tomorrow.
The Reserve Bank is widely expected to raise the OCR by half a percent to 2.5 percent - making it the sixth rise in a row.
Any raise will be factored in to banks' interest rates, at a time when close to half of existing home loans are due to re-fix in the next 12 months.
Amy Williams reports.
