French phrase
Je déclare en plus ~.
Meaning
I also declare ___.
When to use it
Used to declare additional cash at a border.
Example dialogue
Je déclare en plus 5 000 euros en liquide.
I also declare 5,000 euros in cash.
C'est au-dessus de la limite, vous devez remplir un formulaire.
That is over the limit. You need to fill out a form.