Is there a $500 bill online?
Yes, there is a 500 dollar bill. And 500 dollar bills are still legal tender, though rare. The last print run was in 1945. But should you use a 500 dollar bill to buy groceries? Absolutely not, because it's a highly collectible item. Premiums on certain 500 dollar bills can double their currency value.
What's the largest bill used in currency today?
The $100 bill is the highest denomination used in commerce. $500 bills and $1,000 bills are still legal tender but rarely encountered in daily use.