To avoid paying LMI when you refinance, you’ll generally need at least 20% equity in your home. For example, if your home was worth $1 million, you’d need at least $200,000 of equity.
If you have 5–19% equity in your home, you’ll need to assess whether the benefits of refinancing outweigh its costs. For example, if you had $90,000 in equity on a home worth $600,000, your LMI premium might cost more than $6,000.
You also need to consider that any LMI you paid on your first home loan may not be transferred to your new one. (Some lenders may offer a rebate if you’ve had your home loan for less than two years.)