What Is Section 19AB and Why Does It Matter?
Section 19AB of Australia's Health Insurance Act 1973 is the single most misunderstood rule affecting IMGs. It restricts where you can bill Medicare for the first 10 years after your initial Medicare provider number is issued. Understanding it is the difference between earning from day one and waiting months for the right exemption.
The rule in one sentence
For 10 years from your first Medicare billing date, you cannot bill Medicare at practices in MM1 locations (inner-metropolitan areas like Sydney CBD, Melbourne CBD, central Brisbane) — unless you have an exemption.
Why it exists
Australia has a geographic maldistribution of doctors. Too many in inner-metro, not enough in regional and rural areas. Section 19AB is the government's lever: it pushes new IMGs toward underserved areas by restricting their Medicare billing in well-served ones.
The MM classification scale
| Classification | Meaning | 19AB restricted? |
|---|---|---|
| MM1 | Major cities (inner metro) | Yes — need an exemption |
| MM2 | Regional centres | No — DPA, open to bill |
| MM3–4 | Large and medium rural towns | No — DPA, open |
| MM5–7 | Small rural and remote | No — DPA, open + incentives |
Check any address at the Health Workforce Locator.
Exemptions that let you bill at MM1
After-hours exemption
Work evenings (after 6pm weekdays), weekends, and public holidays. Medicare allows after-hours billing at MM1 practices without a separate exemption application. This is the most commonly used pathway for IMGs earning in Sydney and Melbourne.
Spousal exemption
If your spouse or de facto partner is an Australian citizen or permanent resident, you may qualify for unrestricted MM1 billing. Check with Services Australia for the specific conditions and application process.
Area-of-need exemption
Some MM1 areas are declared "area of need" for specific specialties. If the local health department has declared a need, you can bill there despite 19AB. This is uncommon for GPs in inner metro but occasionally applies to specific suburbs.
DPA work (no exemption needed)
Work at any practice classified MM2 or above. No exemption needed — 19AB simply does not apply outside MM1. Regional and rural work is always unrestricted.
Split arrangement
Combine metro after-hours (for income, using the after-hours exemption) with regional daytime (for training credit, in a DPA area). Some practices specifically structure this for newly arrived IMGs.
When does 19AB end?
10 years from your first Medicare billing date. After that, you can bill anywhere in Australia without restriction. The clock starts ticking the first time you submit a Medicare claim — whether that is through after-hours at an MM1 practice or daytime at a DPA practice.
Does 19AB apply to Competent Authority doctors?
Yes. 19AB applies to all new IMGs regardless of pathway. UK, Irish, American, and Indian doctors are all subject to the same 10-year moratorium. The difference is that Competent Authority doctors reach the billing stage faster (2–3 months vs 6–12 months), so their 10-year clock starts sooner. See the Competent Authority timeline to understand how quickly you can reach the billing stage.
Source: Services Australia — Section 19AB