When you get your home loan if we didn’t meet the deposit requirements set by the reserve bank at the time. Currently 20% deposit. The banks will charge one of these on your lending. The margin is a few basis points added to your interest rate. For example: Rate could be 4.59% + LEM of 0.75% because we used a 10% deposit. = New rate of 5.34%. The premium and fee can mean we get the standard rate but banks will charge you a fee of similar interest. For example: $500k loan + LEP of 0.75% is $3,750. You can pay the $3750 fee but some banks will allow us to add this to your loan. Meaning your new loan would be $503,750.