When my IVA is due to complete after 72 months, I retire 3 months later with a final salary pension, will my my lump sum from my pension be safe, or will I have to pay into IVA. I will not receive certificate from IVA (step change) until 6 months after completion ?
Once you have complied with all of your contractual obligations under the IVA, then there is no need for you to have to pay over any additional monies - and in any case your pension benefits should have been ring-fenced away from the IVA.
Do clarify this with your own IP however, as we are not party to the exact terms of your particular IVA and therefore cannot give reliable advice, only guidance.