Almost five years after it was first proposed by the state government, NSW citizens are now finally able to display their driver's licence on their phones and use it as a form of ID at pubs and clubs.

But if you have a cracked screen, it may not get accepted because a clear screen is required for it to be used as valid ID; your phone must also be kept charged so that you can show your licence.

What a NSW digital driver's licence looks like. Credit:Service NSW

The move, which the NSW government previously estimated could save tens of millions of dollars, will make NSW one of the few places in the world where citizens are able to choose to have a licence issued in digital format and have it displayed on their smartphones.

In Australia, NSW joins South Australia, which launched a similar app in May 2017.