. The minimum salary level is $53,900, but if there is an Australian working for the business, you need to be paid at least the same as them
To be eligible for a 457 visa, you'll need to show that you are being paid above $53,900 which is considered the minimum amount you'll need to live in Australia. This figure is called the TSMIT (Temporary Skilled Migration Income Threshold), and is generally varied every July.
However, if there is an Australian working for the business in an equivalent position to yours, you'll need to show that you are getting paid the same, or more, than the Australian worker. This requirement is called the "Market Rate Salary" requirement.
If there is no Australian worker in an equivalent position, you'd then need to show that you are being paid what an Australian worker would be paid by referring to industry awards, salary surveys and researching salaries for other similar positions being offered.