For UK census reocrds, the first place to look is the 1901 census, which is the most recent collection available on Ancestry.co.uk. Censuses then go back every 10 years - 1891, 1881, 1871, 1861 and 1851 - until 1841, which was the first to ask for personal information. These census records can tell you where your ancestor lived, their name, gender, age on the date of the census, occupation and birthplace (in 1841 it is just shown as within the county or outside). They will also show who they were living or staying with on the night of the census.
From 1851 the person's relationship to the head of the household and marital status is shown as well as whether they have a disability.
From 1891 the person's employment status is shown. This shows whether they were employed, an employer or neither - and from 1901, 'home worker' was added as a category.