The Medicare Levy Surcharge (MLS) is an extra tax designed to encourage higher-income Australians to take out private hospital cover, easing demand on the public hospital system.
It is separate from the standard 2% Medicare Levy that almost all Australian residents pay. The MLS only kicks in for singles earning more than $93,000 (or families above $186,000combined) who don't hold an appropriate level of private hospital cover.
The surcharge is tiered. At the base rate of 1% on a $100,000 income, you'd pay $1,000 — which is typically less than the cheapest hospital cover. But as your income rises, the MLS climbs to 1.25% then 1.5%, and the financial case for getting cover strengthens. At $150,000 the surcharge reaches $2,250; a basic hospital policy often costs $1,100–$1,500 per year for a single adult.
To be exempt from the MLS, your hospital cover must have an excess no higher than $750 for singles or $1,500 for couples and families. Extras-only or ambulance-only cover does not exempt you — you need hospital cover specifically.