Hi angela and welcome to the forum
I think that it would be courteous to tell your IP about your potential change of circumstances now. If you were my client I would appreciate being kept informed - and I am sure that they will share this view.
Your IP will then review your circumstances, and probably ask you to submit a revised income and expenditure statement so that he/she can assess whether you are in a position to increase your payments. The child benefits will be treated as income, but I am sure that you will have additional expenditure to counter the benefits.
This is just my opinion as one of the forum experts - others may have alternative views, but your own IP is the best one to contact. Let us know how you get on and good luck with the adoption process.
Regards, Melanie Giles, Insolvency Practitioner for over 20 years.
For further details contact me at
http://www.melaniegiles.com and view my IVA blog at:
http://melaniegiles.blogs.iva.co.uk