Hi hoperadio and welcome to the forum
Are you already in an IVA, or did you withdraw your application when you heard about the redundancy?
If you receive an inheritance during an IVA, then this is very likely to be captured under "windfall" provisions, which mean that the money has to be handed over to the Supervisor of the arrangement for the benefit of your creditors. You will need to pay over sufficient to discharge all of your debts in full, the outstanding costs of the arrangement and perhaps statutory interest which is calculated at 8% per annum.
Regards, Melanie Giles, Insolvency Practitioner for over 20 years.
View my IVA blog at:
http://melaniegiles.blogs.iva.co.uk