VAT Deregistration question "Has the business charged or claimed VAT on land or commercial pro"

We wish to deregister a partnership that has now sold all the commercial property it owned. As the company has let commercial property, one of the questions is "Has the business charged or claimed VAT on land or commercial property? You can choose to charge VAT on any income earned from renting or selling land or commercial property. This is known as ‘Option to Tax’. What is the value?" Can anybody clarify what the `value` required is calculated on ? Is this total rents received while the options to tax were in place, value of properties under options to tax? Prior to MTD, the records were kept manually so calculating the VAT charged over the past 20 years will be very difficult, if this is what is required. Thanks

Hi,
If you are deregistering from VAT and you are retaining property with an Option To Tax and which you have been able to recover the VAT as input tax then you will need to account for the VAT upon deregistering.
However if you have sold all the property before deregistering then there shouldn't be any VAT to pay over to HMRC.
Please see the guidance below:
VAT Notice 700/11: cancelling your registration
Thank you.