It said in the listing it was to avoid VAT registration, which is very common for small B&Bs, small shops/cafes, etc. Sales (not profit) over £90k p.a. and you lose a huge chunk of it to HMRC in VAT, so you actually end up worse off if you grew your turnover from £90k to £100k, hence why huge numbers of such small businesses close for winter, or reduce opening hours, or have several one or two weeks closures, or in the case of B&Bs actually close a floor or some rooms and simply don't use them - all different ways to stay under £90k. You really have to power through the threshold to around £110k + to start being better off than you were at £90k, and only then if you don't have to take on extra overheads such as more staff etc. One of my clients is a 9 bedroom B&B and he decided to "go for it" after years of shutting 4 months per year to stay under the threshold - he's got it to £120k but now has to employ someone to do the cleaning and make breakfasts, so he's only just now making more profit than he did when he kept it under the VAT threshold which was £85k up until recently - that's after two years of being worse off as he tried to power through to a level where it was worthwhile opening all year and opening all rentable rooms!