If live outside the country where you intend to be married, you may need to obtain a Certificate of No Impediment to Marriage (CNI) which states that there is no impediment to your proposed marriage.
You will need to clarify if a CNI is required for your marriage with the Embassy of the country where you intend to be married. For a list of Embassies in London, please click here.
If you do need a CNI, any Australian Diplomatic Mission overseas can issue a CNI. For a copy of the CNI application form, please click here.
Some countries will only accept a CNI issued by the Australian Diplomatic Mission located in the country where the marriage is to take place. It is recomended you contact the Australian Diplomatic Mission in the country where you intend to be married to confirm where the CNI should be issued. This is a list of Australian Diplomatic Missions around the world.
If you have confirmed that the Australian High Commission in London can issue the CNI, please complete an Application for a Certificate of No Impediment to Marriage, entering both your and your fiancé’s details, have it witnessed by a qualified witness (as listed on the application form) and forward it, along with a self addressed reply paid envelope, to
Consular Office
Australian High Commission
Strand
London WC2B 4LA
Information on the cost and how to provide payment for a CNI can be found here.