Will you be going into a new job? It will depend on your income and you will need to speak to your provider if there is any change.
Sharing from experiences of dealing with debt
The greatness of a man is not in how much wealth he acquires, but in his integrity and his ability to affect those around him positively.
Bob Marley. http://kallis3.blogs.iva.co.uk
It depends on your ability to maintain the agreed payments. It is possible, if your income decreases, to get the payment reduced. Any reduction over 15% will need to be agreed by your creditors. If they do not agree to a reduction the IVA can be failed and you will need to consider other debt solutions as creditors will be able to pursue collection of the debt.
My opinions are merely that .. opinions based on experience. Always seek professional advice.
IVA Completed 23rd July 2013 .... C.C. 10th January 2014 http://foggy.blogs.iva.co.uk