From the department:
Evidence of relationship - Documentation examples
Please submit documents relating to you and your sponsor in support your claims of being in a genuine relationship.
The following list, whilst not exhaustive, indicates the type of documents which could be presented. Property ownership documents, e.g. mortgage documents, Contract of Sale/Purchase, Certificate of Title Receipts for major items purchased in joint names (e.g. car, furniture, electrical equipment). Joint and separate bank or credit card statements (including home loan accounts) listing full details of transactions and current balances. Current employment details and/or payslips from you and your sponsor's respective employers. Insurance policies (home, contents, car or personal). Utility accounts (rates notices, gas, electricity, telephone including mobile, internet connections). Birth certificates for children of the relationship. Wills or life insurance policies showing the names of the beneficiaries. Evidence of joint participation in sporting, cultural, social, religious or other activities. Photographs at various events or social functions. Please include a brief description of where and when the photos were taken and who is in them. You should give a few samples taken at different times covering the period of your relationship. Please do not provide full albums or a large number of photographs of the same event. Due to security concerns, electronic media such as CDs, DVDs, portable HDDs or USB sticks will not be accepted. Letters (including envelopes with legible postmarks) received at your current or previous home address either in joint or separate names. You should provide samples from different times covering the period before and after the lodgement of your application. Letters (including envelopes with legible postmarks) received at your current or previous home address either in joint or separate names. You should give a few samples at different times covering the period of your relationship. Documentary evidence to support any declarations that you have made in the application form and statutory declarations. Health care cards or private health insurance documentation/correspondence. Family allowance payments. Superannuation statements from your current or previous employment (for you and your sponsor). Australian drivers licence (for you and your sponsor). Car registration documents (for you and your sponsor).