Main residence relief when I am absent for a long time but my wife lives in the property

Me and my wife are about to purchase our first house but for different reasons decided that only my name will be on the mortgage and the deed. I will probably end up spending most of my time abroad in the next 5 years (this is not an employer requirement, but my choice) while my partner will stay most of the time in the UK, in the property mentioned above. The question is, what happens when I come to sell it down the line. Will I still be eligible for the main residence relief in this situation, or is the only way to ensure eligibility to put both of our names on the deed ? For full clarity, the property will not be let during this time, but will be used by my partner all the time (and me when I am in the UK). Thanks!

Hi,

Please refer to:

Capital Gains Manual

and

Capital Gains Manual

Thank you.