It is two coins. One of the coins is placed on top of the other coin 1/4 of the way. The bottom coin has a ring of dot around the edges and the coin placed on top has a ring of larger dots around the edges. The coin on top has a large number 5 in the center.
Related to Billing Icon
Related icons are the icons with matching tags, as well as all finance icons. All icons are in the same flat style. You can either download free PNG icons or buy SVG vectors