SET(O) Co-habitation documents time frame?

[SimH3ZA]

Hi all,

I am the unmarried dependent of an ancestry visa holder. We arrived in UK Jan 2016. Looking ahead to what's required for ILR, I came across the following statement in the application:

"If you have a spouse or civil partner listed in section 2 of this application form who is applying
at the same time as you, please provide documentary evidence of cohabitation since you
were last granted leave (up to a maximum of two years). Evidence provided should cover the
whole period and be in the form of official letters or documents, addressed to yourself and
your spouse"

I know there is a variety of threads about what actual evidence to provide, I am aware of the docs and have these covered, but my question is to do with the qualifying period that these documents need to cover. I know this may seem simple, but I am just wanting to be crystal clear on this... Is it for 2 years working backwards from the date of ILR application (c.Dec 2020) or is it for 2 years from the point at which we entered the UK (Jan 2016)?

Many thanks in advance

[Casa]

2 years working backwards from the date of ILR application (c.Dec 2020)