The United States plans to unveil a new $100 bill aimed at foiling counterfeiters.

The US Treasury Department says the design for the new note will be released in late April.

The $100 bill is the highest-value denomination in general circulation.

It is used in commerce worldwide and is a popular target for counterfeiters.

Since 2003 the US has issued a series of notes that incorporate new anti-counterfeiting features and for the first time, background colours other than green.