The legal blood alcohol concentration (BAC) limit for a full licence holder in Australia is under 0.05% (0.05 grams of alcohol per 100 millilitres of blood) when driving a typical car or light vehicle.

Quick Scoop: What You Need To Know

  • For full licence holders , the legal BAC limit is below 0.05% across all Australian states and territories.
  • Once you hit 0.05% or above , you’re considered over the “general alcohol limit” and can be charged with a drink driving offence.
  • Learner, provisional, probationary and many commercial or heavy vehicle drivers must have 0.00% BAC (no alcohol at all).

Important Nuances

  • Some vehicles and roles (for example, heavy trucks, buses, taxis, ride-share, dangerous goods, certain public passenger vehicles) require zero BAC , even if you hold a full licence.
  • States and territories share the same 0.05% general limit but may differ in penalties , suspension periods and how they classify mid‑range or high‑range offences.

In practice, “legal limit” does not equal “safe to drive” – fatigue, medication, body size and drinking speed can all make you unsafe well below 0.05%.

Quick Example

Imagine a full-licence driver in Queensland in a standard car:

  • At 0.04% BAC : Usually under the general limit, but still at increased crash risk.
  • At 0.05% BAC or more : Legally over the general alcohol limit , at risk of fines, demerit points, licence suspension and possibly more serious penalties if higher.

Bottom line:
For a full licence holder driving a normal car in Australia, the legal BAC limit is below 0.05% – aim for 0.00% if you want to stay clearly safe and avoid any legal trouble.

Information gathered from public forums or data available on the internet and portrayed here.