licensing fee vs license fee

licensing fee and license fee both are nouns.

Word	Noun	Adjective	Verb	Adverb
licensing fee	Yes	No	No	No
license fee	Yes	No	No	No

As nouns, licensing fee and license fee are synonyms defined as:

licensing fee and license fee: a fee paid to the government for the privilege of being licensed to do something (as selling liquor or practicing medicine)

Other synonyms of licensing fee include license tax.

licensing fee (noun)	license fee (noun)
a fee paid to the government for the privilege of being licensed to do something (as selling liquor or practicing medicine)	a fee paid to the government for the privilege of being licensed to do something (as selling liquor or practicing medicine)