CGT payable by executors on increase in value of property after date of death

Hi, I completed IHT 400 and IHT 405 in respect of an estate that I am administering. As I was intending to sell a property within 12 months, I ticked the box that says do I want to use the sale value as the vale of the property as at the date of death as there was no IHT payable. It has now taken me more than 12 months to sell the property. Probably 18 months will have passed before the sale is complete. My question is whether ticking this box will make any difference to the CGT payable? Will the value on sale achieved be treated as the value at the date of death?

Hi,
As this is an Inheritance Tax return question you need to:
Please contact the Inheritance Tax team for advice.
Inheritance Tax: general enquiries.
Thank you.