Thanks for your question - I am Sam and I am one of the UK tax experts here on Just Answer.
I am afraid not as each is its own stream if tax and runs on its own system within HMRC - so although the HMRC task forces can investigate tax across the regimes, they still remin under their own tax streams.
All I can suggest is that you contact the collection side of matters (debt collection team) and make three proposals - trying to make a lump sum payment on each (as a gesture of goodwill) and then affordable payment terms on each , and make sure you stick to those terms - if you cannot afford a payment one month then contact them in advance of the payment due - or they will sever any arrangement and pursue for the whole debt
Let me know if I can assist further
I cannot comment on whether an IVA would be appropriate s I have no financial/debt expertise (we are just tax experts)and of course this should only ever be considered as a last resort, but I would at least advsie to consider having a chat with an organisation to see if the IVA might be the way to go if you feel the amounts HMRC expect as a minimum repayment and the time scale is not going to be possible.
Do let me know if I can assist further, but if you have all tat you need (and you can always come back for additional support) then it would be appreciated if you would rate me for the level of service I have provided (or click accept)