A First Home Buyer needs to save at least a 5% deposit* but, the more that is contributed now, the less interest is charged in the long run and the lower the repayments. If the deposit is less than 20% + the stamp duties, lenders mortgage insurance may apply (explained further down the page). If you are purchasing a subsequent home or refinancing, it is likely you will have more equity so we recommend you put down at least 20% + the costs.
*It is possible, with the help of a Parental Guarantee, to avoid paying lenders mortgage insurance, there is a section on that below also.