The full amount of your pension will be added to your income. You will stop paying NI but you may also finish up paying slightly more income tax as usually your pension takes up your allowances. You would be better to defer your pension if possible.
I agree that you should defer the pension if you can. You won't pay tax on the state pension but you will pay more tax on your earnings.
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
If you are looking at an IVA specifically, don't be surprised if your creditors insist that you claim your pension as a condition of accepting the proposal at creditors meeting.
Regards.
Cert DR
23+ years in debt advice
I do not post for anyone other than myself