Domain names can generally be registered for up to 10 years, but there are a few exceptions to these. The big exception is domains ending in .au (.com.au, .net.au, .org.au, etc.) and .co domains. These TLDs can only be renewed for a maximum of 5 years at a time. Previously, .au domains could only be registered for 2 years, but recently, with Afilias taking over management of the .au registry, we can now register .au domain names for 1-5 years. Please note, any new .au direct domains that include an application (contested or non-contested) can only be initially registered for 1 year.