A 2005 Australia Elizabeth II coin is usually worth face value to a few dollars , unless it’s a scarce variety, a proof, or in exceptional uncirculated condition. For common circulating pieces, the market listings I found point to around 20 cents at catalog level for a 2005 Australia 20-cent coin , while another listing shows about 5 AUD for UNC condition.

What matters most

  • Denomination: 5c, 10c, 20c, 50c, $1, or $2 all have very different values.
  • Condition: worn circulation pieces are usually near face value.
  • Type: proof or mint-state coins can sell for more.
  • Errors/varieties: rare mint mistakes can raise value a lot.

Likely value ranges

  • Common circulated coin: face value.
  • Better uncirculated example: a few dollars.
  • Proof or scarce variety: potentially much higher, depending on exact type and grade.

Fast check

The exact worth depends on the denomination and reverse design , since “2005 Australia Elizabeth II coin” could refer to several different coins from that year. One 2005 Elizabeth II Australian 20-cent catalog entry is listed at UNC $5.00 , while a separate source shows a general 0.20 AUD value for a 2005 Australia 20-cent coin.

Best next step

To pin down a real value, identify:

  1. The denomination.
  2. Whether it says 2005 only or has a special commemorative design.
  3. The condition.
  4. Any mint mark or error.

If you want, I can help identify the exact coin from a photo or from its denomination and design.