What is the penalty for assault in the UK?

Answer 1

Here's some information on penalties. It depends on the degree of the assault, i.e. common assault, actual bodily harm and grevious bodily harm

Racially-aggravated assault (Maximum penalties)

malicious wounding/grievous bodily harm 2 years imprisonment and fine

actual bodily harm 7 years imprisonment and fine

common assault 2 years imprisonment and fine

http://www.plymouth.gov.uk/cda-part2

Also, even if a racially motivated component cannot be proved, then the offence can still be prosecuted as common assault, ABH or GBH