I need the value of a new ak47 five pound note

same as what if ak47 then no

At least £5

Sorry but we are not a numismatic website.

Just the £5 face value.

I heard on the grapevine that the New Australian 5 dollar note starting in AA is worth more !
here is a link to a note collector selling then at $19
https://www.therightnote.com.au/product/australian-2016-five-dollar-note-first-prefix-aa/
http://www.australian-coins.com/banknotes/2016-new-five-dollar-note-value/
so you may have the wrong note as have not heard anything about 5 pound notes .

AK45 Bank of England Polymer 5 Five Pound Note Genuine New Note 1 000 00

5 pounds --printed on the note
it will be some time to gain value if it is not special