Income tax when emmigrating from France

[oakbri]

Sorry another mundane tax question.

I am currently a resident in France and pay my tax monthly. I am selling my house early next year and the way it's looking we will leave France altogether. As I pay my taxes in arrears what happens when I leave? Does the Notaire automatically deduct all my outstanding taxes from my house proceeds, do I have to pay by cheque, or can I continue to pay from my new country of residence on a monthly basis until the bill is settled.

Many thanks in advance